CN103980908A - Saline soil conditioner - Google Patents
Saline soil conditioner Download PDFInfo
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- CN103980908A CN103980908A CN201410217493.4A CN201410217493A CN103980908A CN 103980908 A CN103980908 A CN 103980908A CN 201410217493 A CN201410217493 A CN 201410217493A CN 103980908 A CN103980908 A CN 103980908A
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Abstract
The invention discloses a saline soil conditioner, comprising the following raw materials by weight percent in dry weight: 25-55% of oxalis corniculala, 30-55% of soybean straw, 5-15% of straw biochar and 10-25% of wheat bran. The components are mixed by the weight percent after being crushed, and fully mixed evenly. By adopting the saline soil conditioner, the required cost for improving saline soil can be reduced when an ecological and safe farmland environment is ensured, and the efficiency for improving the saline soil is improved.
Description
Technical field
The present invention relates to salt-affected soil improving technology, particularly a kind of crop rhizosphere salt-affected soil amendment that is applicable to the whole plant composition of Crop Improvement rhizosphere (root system region) salt-affected soil quality.
Background technology
The saline soil such as saline-alkali soil or alkaline soil (alkaline earth) are, after solubility salt or Sodium by substitution ionic concn acquire a certain degree in soil, to make the pH value of soil higher, and crop is difficult to a class soil of growth.Soil salinization problem worldwide extensively exists, approximately there is 0.27 hundred million hectare, salt marsh soil in China, and wherein, 0.06 hundred million hectare of saline soil is for ploughing, 0.21 hundred million hectare of saline soil is saline-alkali wasteland, is mainly distributed in northeast, North China, inland area, Northwest, China and North of Yangtze River coastal area.In addition, in arid and semi-arid area, owing to being mostly continental climate, precipitation is rare, and evaporation is strong, if irrigation practice is improper, for example fertilizers input amount is large, and soil secondary salinization also very easily occurs.
Saline soil, due to the accumulation of a large amount of salinities in soil, causes the deterioration of a series of soil properties, comprising: the soil organism destroyed and leaching loss, nutrient discharge slow, trace element is in great shortage; Soil Microorganism reactivity is poor; Soil structure viscous, air permeability is poor, permeability coefficient is low, wicking action is strong, cause topsoil salinification aggravation, crop root is subject to after saline and alkaline murder by poisoning, causes the bad and early ageing of root system development, and with poisoning, rotten, the phenomena of mortality, make crop root be difficult to absorb moisture and drop into the nutritive substance in fertilizer, cause physiological drought and deficiency disease, cause crop growth to suffer salt damage and be suppressed, cause that crop yield is low, poor quality, even dead.
Research shows, the soil pH value of suitable plant growth is between 6.5～7.5.And the pH value of saline soil is generally more than 8.0, even if make in soil to contain abundant nutritive substance, is planted in the can absorbing power also very low of crop in this saline soil, thereby reduced the utilising efficiency of fertilizer.Therefore, carry out improvement of salt and alkaline land, effectively reduce pH value and the saltiness of saline soil, will effectively promote arable land output, promote the Sustainable development of RS in Alkali Region agricultural.
At present, carry out alkali soil improvement comparatively effective means be in saline soil, to use chemical substance or as base fertilizer or topdress and use salt marsh soil redeposition, with sweetening of the soil basicity, thereby the calcium in activating soil, reduce carbon in soil acid sodium-salt class concentration, reach and improve the effect of mineral nutrient element to the validity of plant, wherein, salt-affected soil conditioning agent adopts organic materials, chemical substance etc. mostly.Studies show that, saline soil is used the organic materialss such as muck, stalk, green manure, can improve nutrient supply situation, improvement salt-affected soil structure, and the pH value of reduction salt-affected soil, strengthens soil microbial activity, increases soil exchangeable positively charged ion.
But the multiselect organic materials being comprised of muck, stalk, green manure, is neutral mostly at present, little to soil pH value improvement effect; Further, organic materials supplements inefficiency to carbon base in soil, not obvious to improving soil organism effect; And the lifting of the organic materials being comprised of muck, stalk, green manure to soil microorganisms, acts on slower.Making needs long-term input for improving the organic materials of salt-affected soil, causes improving the required cost of salt-affected soil higher, salt-affected soil to improve efficiency lower.
For the salt-affected soil conditioning agent that adopts chemical substance, chemical substance mainly comprises: gypsum, phosphogypsum, calcium superphosphate, humic acid, peat, acid-sludge etc., although improvement saline soil is also had to certain effect, and cost is lower, it is higher to improve efficiency, but because salt-affected soil conditioning agent main component generates by chemical mode, if amount of application is larger, can produce detrimentally affect to farm environment, for example, cause soil compaction; And, if use improperly, also can endanger farm environment ecological safety, thereby the long-range consideration based on agricultural, does not generally advise high frequency, adopts in a large number.
Summary of the invention
In view of this, main purpose of the present invention is to propose a kind of salt-affected soil amendment, adopts whole plant component, be applicable to Crop Improvement rhizosphere salt-affected soil quality, when ensureing farm environment ecological safety, reduce and improve the required cost of salt-affected soil, improve the efficiency of improving salt-affected soil.
For achieving the above object, the invention provides a kind of salt-affected soil amendment, comprise following component: Herba Oxalidis Corniculatae, soybean stalk, straw biological carbon and wheat bran, wherein,
The weight percent dry weight of each component is respectively: Herba Oxalidis Corniculatae 25%～55%, soybean stalk 30%～55%, straw biological carbon 5%～15% and wheat bran 10%～25%, after each component is pulverized, by above-mentioned weight percent, mix, and fully mix.
Preferably, described straw biological carbon selects a kind of or its arbitrary combination in the multiple stalks such as maize straw, wheat stalk, rice straw to make through carbonization.
Preferably, described carbonization temperature is set to 400-500 ℃.
Preferably, described Herba Oxalidis Corniculatae adopts oven drying at low temperature, and the temperature range of described oven drying at low temperature is 40 ℃～90 ℃.
Preferably, described Herba Oxalidis Corniculatae is selected and contains the flower Herba Oxalidis Corniculatae in early stage.
Preferably, described soybean stalk adopt air-dry or dry after pulverize again.
Preferably, according to the pH value of the saltiness of salt-affected soil to be regulated, salt-affected soil, regulate the weight percent of each component in described salt-affected soil amendment.
Preferably, further according to area, root system regional depth and the arable farming mode to be planted in crop root to be planted region, calculate amount of application and the application times of salt-affected soil amendment.
Preferably, according to the saline soil weight in crop root to be planted region, saline soil pH value and the pH value for the treatment of kind of plant optimum growh, calculate the required salt-affected soil conditioning dosage of corresponding variant component proportion.
Preferably, described salt-affected soil saltiness is 1.8g/kg, pH value is 7.6, the salt-affected soil amendment proportioning that preparation applies tomato rhizosphere can be: straw biological carbon 5%, the wheat bran 10% under the Herba Oxalidis Corniculatae 30% of oven drying at low temperature, the soybean stalk 55% of pulverizing, 500 ℃ of conditions, made, before transplanting tomato seedling, spread manuer in holes, according to 50kg/ mu, apply salt-affected soil amendment; Or,
Described salt-affected soil saltiness is 2.3g/kg, pH value is 8.2, the salt-affected soil amendment proportioning that applies Cotton rhizosphere is: straw biological carbon 10%, the wheat bran 12% under the Herba Oxalidis Corniculatae 38% of oven drying at low temperature, the soybean stalk 40% of pulverizing, 500 ℃ of conditions, made, in cotton, broadcast front row replacement, according to 70kg/ mu, apply salt-affected soil amendment; Or,
Described salt-affected soil saltiness is 3.8g/kg, pH value is 8.9, the salt-affected soil amendment proportioning that applies food certain herbaceous plants with big flowers rhizosphere is: straw biological carbon 10%, the wheat bran 10% under the Herba Oxalidis Corniculatae 45% of oven drying at low temperature, milling soya seeds stalk 35%, 500 ℃ of conditions, made, in food certain herbaceous plants with big flowers, broadcast front row replacement, according to 60kg/ mu, apply salt-affected soil amendment, and at root, spread manuer in holes once squaring period in food certain herbaceous plants with big flowers, according to 30kg/ mu, apply salt-affected soil amendment, apply altogether 90kg/ mu twice.
As seen from the above technical solutions, a kind of salt-affected soil amendment that the embodiment of the present invention provides, all makes by being acidity or neutral plant material, and wherein, Herba Oxalidis Corniculatae can effectively be improved crop rhizosphere soils pH value; Soybean stalk can provide abundant nutrient for soil; Straw biological carbon provides carbon base in soil, and carbon base in soil is effectively supplemented; Wheat bran can be soil microorganisms food source is provided, and promotes Soil Microorganism reactivity.Like this, when ensureing farm environment ecological safety, can reduce and improve the required cost of salt-affected soil, improve the efficiency of improving salt-affected soil.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention adds after the salt-affected soil amendment (amendment) of different amounts in 60g salt marsh (saline and alkaline) soil, and salt-affected soil pH value changes schematic diagram.
Fig. 2 is that the embodiment of the present invention adds after the salt-affected soil amendment (amendment) of different amounts in 60g salt marsh (saline and alkaline) soil, and soil salt content changes schematic diagram.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
The existing salt-affected soil amendment of being made by organic materialss such as muck, stalk, green manure, mostly be neutral, little to soil pH value improvement effect, carbon base in soil is supplemented to inefficiency, castering action to soil microorganisms is slower, need long-term input, make to improve the required cost of salt-affected soil higher, salt-affected soil to improve efficiency lower.And adopt the salt-affected soil conditioning agent of chemical substance, although cost is lower, to improve efficiency higher, because salt-affected soil conditioning agent main component is chemical, use improper can harm farm environment ecological safety.
Herba Oxalidis Corniculatae is a kind of per nnial herb growing thickly, and is acid, claims again three folic acid, mountain hydrochloric acid, the butterfly wing, chrysanthemum Herba Oxalidis Corniculatae, hydrochloric acid grass, growth is fast, wide adaptability, high 10-35 centimetre, rhizome is slightly plump, stem is thin and delicate, and multi-branched is upright or crawl, crawl to take root on stipes, can breed by various ways such as bulb, plant division or seeds, thereby, be distributed widely in all over the world.
Wheat bran is comprised of the epidermis of wheat seed and the starch of small part, contains abundant Mierocrystalline cellulose, hemicellulose, xylogen, starch, protein, also has a small amount of fat, mineral element etc.
In the embodiment of the present invention, consider to select extensive distribution, easily growth, fast growth and be acid Herba Oxalidis Corniculatae as a kind of component of salt-affected soil conditioning agent, in order to fast reducing salt-affected soil pH value; Soybean stalk is rich in nutrient, also contains the trace elements such as calcium, magnesium, manganese, copper, zinc, can effectively improve salt-affected soil quality, the another kind of component using it as salt-affected soil conditioning agent; For carbon base in soil is effectively supplemented, consider to adopt straw biological carbon, in order to the quick carbon base in soil that improves, and provide Macro and microelements; Wheat bran is beneficial to soil microbial activity, for soil microorganisms provides food source, can effectively promote soil microbial biomass, and the lifting of soil microbial biomass, will effectively improve soil physical property and soil microorganisms proterties.Thereby, in the embodiment of the present invention, the another two kinds of components using straw biological carbon and wheat bran as salt-affected soil conditioning agent.After above-mentioned each component is pulverized, be combined closely in crop root region in salt-affected soil, is conducive to rapid pin crop root region is played a role, thereby improve crop root and around salt-affected soil quality, structure and the nutrient situation in (root system region).
In the embodiment of the present invention, adopt the salt-affected soil amendment of whole plant component to apply crop root region, owing to adopting whole plant component (Herba Oxalidis Corniculatae, soybean stalk, straw biological carbon and wheat bran are all vegetalitas component), can not endanger farm environment ecological safety, high to farm environment friendliness, ecological, safety; By applying salt-affected soil amendment in root system region, can improve specific aim and the validity of fertilising, fertilising is more efficient, ecological, safety; And the effective Crop Improvement root system regional soil proterties of the acidic nature of salt-affected soil amendment, reduce root system region (root district) soil salt content and pH value, straw biological carbon can improve carbon base in soil, wheat bran is beneficial to soil microbial activity, effectively improves soil physical property and soil microorganisms proterties.Thereby under the comprehensive action of Herba Oxalidis Corniculatae, soybean stalk, straw biological carbon and wheat bran, improve crop liquid manure utilising efficiency, improve crop salt resistance, saving of labor is efficient, reaches the object that alleviates environmental pollution, promotes Farmland ecological security.
The component of the salt-affected soil amendment of the embodiment of the present invention comprises: Herba Oxalidis Corniculatae, soybean stalk, straw biological carbon and wheat bran, wherein, the weight percent dry weight of each component is respectively: Herba Oxalidis Corniculatae 25%～55%, soybean stalk 30%～55%, straw biological carbon 5%～15% and wheat bran 10%～25%, after each component is pulverized, by above-mentioned weight percent, mix, fully mix and form salt-affected soil amendment.Wherein, Herba Oxalidis Corniculatae can effectively reduce pH value and the saltiness of salt-affected soil, soybean stalk can provide comparatively long-term nutrient for salt-affected soil, and straw biological carbon can be used for improving the organic matter in salt-affected soil, and wheat bran can improve soil physical property and soil microorganisms proterties.
In practical application, straw biological carbon can select a kind of or its arbitrary combination in the multiple stalks such as maize straw, wheat stalk, rice straw to make through carbonization.In practical application, carbonization temperature can be set to 400-500 ℃.In the embodiment of the present invention, under approximately 500 ℃ of conditions, select a kind of or its arbitrary combination in the multiple stalks such as maize straw, wheat stalk, rice straw, soybean stalk, cotton stalk to make straw biological carbon.
Preferably, Herba Oxalidis Corniculatae adopts oven drying at low temperature.In the embodiment of the present invention, as optional embodiment, the temperature range of oven drying at low temperature is 40 ℃～90 ℃, like this, adopt this temperature range to carry out oven drying at low temperature, can not destroy and change the composition in Herba Oxalidis Corniculatae material, can retain as far as possible the original acid state of Herba Oxalidis Corniculatae, be conducive to the performance of its effect.
Preferably, select and contain the flower Herba Oxalidis Corniculatae in early stage, in Sheng, spend early stage, after measured, Herba Oxalidis Corniculatae cauline leaf pH value is about 1.70, show compared with strongly-acid, thereby, can more effectively reduce crop rhizosphere soils pH value.Certainly, in practical application, also can adopt the Herba Oxalidis Corniculatae after full-bloom stage or full-bloom stage.
Preferably, in order effectively to reduce energy consumption, soybean stalk adopt air-dry or dry after pulverize again, like this, dry soybean stalk is beneficial to and grinds.Soybean stalk is nitrogenous 8～13 ‰, phosphorus 2.5～3.0 ‰, potassium 3.5～5.0 ‰, calcium 0.8～1.9 ‰, thereby, can provide abundant nutrient for salt-affected soil.
In practical application, the carbonization temperature of straw biological carbon is set to 400～500 ℃.Like this, in this temperature range, straw-carbonized more thorough, if excess Temperature will cause energy dissipation; And if temperature is too low, carbonization is insufficient, has remaining stalk, and in this temperature range, organic carbon productive rate is relatively high, approximately 35%, can effectively improve salt-affected soil carbon content, and to improving carbon base in soil, there is obvious effect, and Macro and microelements can be provided.
Wheat bran can be salt-affected soil microorganism food source is provided, and promotes salt-affected soil microbe population, thereby can effectively improve soil physics and soil microorganisms proterties.
Further, each component of pulverizing can also be sieved respectively, to ensure the grinding particle size of component, then, then according to the weight percent of each component, each component of sieving be mixed to form salt-affected soil amendment.
From above-mentioned, because the salt-affected soil amendment of the embodiment of the present invention is all made by being acidity or neutral plant material, little, safe, ecological to salt-affected soil farmland ecological environment negative effect; By using salt marsh soil conditioner, regulate crop root region salt-affected soil quality, reach salt reduction, the object of the alkali that disappears, improvement, volume increase, instant effect, feasibility is stronger.Wherein, Herba Oxalidis Corniculatae is compared with strongly-acid, can effectively improve crop rhizosphere soils pH value, can avoid crop root to be subject to saline and alkaline murder by poisoning, reduce crop root dysplasia, poisoning, rotten, the phenomena of mortality, meanwhile, its chemical composition, containing β-sitosterol, oxalic acid, tartrate, neutral lipoid cpd etc., has certain effect for the lifting that improves effective potassium, calcium and the crop quality of saline soil; Soybean stalk can provide abundant nutrient for soil, meanwhile, also contains the trace elements such as calcium, magnesium, manganese, copper, zinc, can effectively improve salt-affected soil quality; Straw biological carbon provides carbon base in soil, and carbon base in soil is effectively supplemented, and has obvious effect, and Macro and microelements can be provided to improving the soil organism; Wheat bran can be soil microorganisms food source is provided, and promotes Soil Microorganism reactivity, thereby improves Soil structure, strengthens air permeability, improves soil permeability coefficient, effectively improves soil physical property and soil microorganisms proterties.Like this, the salt-affected soil amendment of the embodiment of the present invention, when ensureing farm environment ecological safety, can reduce and improve the required cost of salt-affected soil, improves the efficiency of improving salt-affected soil.
Preferably, the salt-affected soil amendment of the embodiment of the present invention, can with other fertilizer compounding application, other fertilizer is used as usual.
As optional embodiment, the embodiment of the present invention, when preparation salt-affected soil amendment, also can further regulate the weight percent (applicating ratio) of each component in salt-affected soil amendment according to the pH value of the saltiness of salt-affected soil to be regulated, salt-affected soil.
Further, it is also conceivable that area, root system regional depth and the arable farming mode to be planted in crop root to be planted region, calculate amount of application and the application times of salt-affected soil amendment.Wherein, by area, root system regional depth and the salt-affected soil density in crop root to be planted region, can calculate the saline soil weight in crop root to be planted region, thereby in conjunction with saline soil weight, saline soil pH value, the saline soil saltiness in crop root to be planted region and treat the pH value of kind of plant optimum growh, pH value corresponding to the salt-affected soil amendment of variant component proportion calculated the required salt-affected soil conditioning dosage of corresponding variant component proportion.Lift an object lesson below and carry out exemplary illustration.
Inner Mongolia Wuyuan County salt affected soil samples, the soil of sampling is air-dry, grind, and crosses 2mm sieve, mixes, and by multidraw method, the average salt content of salt affected soil of measuring sampling is 5.5g/kg, and mean ph value is 9.34.
In sampling, get many parts of 60g soil, mix from the salt-affected soil amendment of different amounts respectively, wherein, salt-affected soil amendment proportioning is: straw biological carbon 5%, the wheat bran 10% under the Herba Oxalidis Corniculatae 55% of oven drying at low temperature, the soybean stalk 30% of pulverizing, 500 ℃ of conditions, made.Pack the mixture that mixes 60g salt affected soil and salt-affected soil amendment into synthetic glass culture vessel, every kind of consumption repeats for 3 times.By after the sealing of synthetic glass culture vessel, put into 25 ℃ of incubators, after 48 hours, take out, mixture is dried, ground, in native: water=1: 5 ratio, adds deionized water, with glass stick, fully stir, after standing 2 hours, with conductivitimeter DDS-307, measure and calculate soil salt content, with FE20K type pH meter (METTLER TOLEDO), measure pH value.The salt-affected soil amendments of different amounts to the improved effect of salt affected soil as table 1.
Table 1
In table 1, in the salt affected soil of sampling, the original saltiness of soil is 5.5g/kg, the original pH value of soil is 9.34, get altogether salt affected soil 10 times, every sub-sampling 60g, sequentially, in each 60g sampling, adds the amount of embodiment of the present invention salt-affected soil amendment to be respectively: 0g, 1.2g, 1.5g, 2.4g, 3.0g, 4.0g, 6.0g, 12.0g, 24.0g, 36.0g.Wherein, salt-affected soil amendment proportioning is: straw biological carbon 5%, the wheat bran 10% under the Herba Oxalidis Corniculatae 55% of oven drying at low temperature, the soybean stalk 30% of pulverizing, 500 ℃ of conditions, made.After measured, add after the salt-affected soil amendment of the embodiment of the present invention, the soil salt content of 10 samplings is respectively: 5.5g/kg, 5.39g/kg, 5.37g/kg, 5.29g/kg, 5.24g/kg, 5.16g/kg, 5.00g/kg, 4.58g/kg, 3.93g/kg, 3.44g/kg; Soil pH value is respectively: 9.34,7.99,7.85,7.43,7.17,6.61,6.06,5.16,3.95,3.18.
From table 1, the increase along with salt-affected soil conditioning dosage, adds after salt-affected soil amendment, and soil sample pH value presents downtrending, from initial soil sample pH value, is 9.34 to drop to 3.18.Soil salt content is also on a declining curve, from initial soil sample saltiness, is that 5.50g/kg drops to 3.44g/kg.Can significantly improve pH value and the saltiness of salt-affected soil.
Fig. 1 is that the embodiment of the present invention adds after the salt-affected soil amendment (amendment) of different amounts in 60g salt marsh (saline and alkaline) soil, and salt-affected soil pH value changes schematic diagram.
Fig. 2 is that the embodiment of the present invention adds after the salt-affected soil amendment (amendment) of different amounts in 60g salt marsh (saline and alkaline) soil, and soil salt content changes schematic diagram.
Fig. 1 and Fig. 2 are the schematic diagram based on table 1, and referring to Fig. 1 and Fig. 2, in Fig. 1 and Fig. 2, X-coordinate is the conditioning dosage (g) adding in 60g saline-alkali soil, and in Fig. 1, ordinate zou is P in soil H value, and in Fig. 2, ordinate zou is soil salt content (g/kg).
In Fig. 1, through over-fitting, can obtain after the conditioning of difference amount salt-affected soil amendment, the fitting formula of P in soil H value is:
y＝0.0058x
2-0.3455x+8.3858
R
2＝0.9456
In formula,
X is the salt-affected soil conditioning dosage adding in 60g salt affected soil, and unit is g;
Y is pH value;
R
2for variance.
In Fig. 2, through over-fitting, can obtain after the conditioning of difference amount salt-affected soil amendment, the fitting formula of soil salt content is:
y′＝0.0007x′
2-0.0837x′+5.4867
R′
2＝0.9998
In formula,
The salt-affected soil conditioning dosage of x ' for adding in 60g salt affected soil, unit is g;
Y ' is soil salt content, and unit is g/kg;
R '
2for variance.
Like this, according to above-mentioned fitting formula and pH value and the saltiness that need to be adjusted to, can calculate required salt-affected soil conditioning dosage.For instance, if salt-affected soil pH value is 9.34, need to be by the conditioning of salt-affected soil pH value to 7.2, according to the fitting formula of the matched curve in Fig. 1 or P in soil H value (in formula, it is 7.2 that y is set, and calculates x value), can obtain the salt-affected soil conditioning dosage that 60g saline soil is corresponding and be about 3.0g, if the saline soil weight in crop root region is 2kg, the corresponding salt-affected soil conditioning dosage that need apply in this crop root region the embodiment of the present invention is about 100g.Calculate the required salinized soil earth conditioning dosage of the required salt-affected soil conditioning dosage of the target saltiness of conditioning and the target pH value of calculating conditioning similar, at this, omit detailed description.
Certainly, in practical application, all right basis and above-mentioned similar method, in the original saltiness of salt-affected soil and the original pH value of soil identical in the situation that, calculate fitting formula or the matched curve of the salt-affected soil conditioning dosage of Different Weight per-cent component formation, and storage, with in subsequent applications, the salt-affected soil amendment of the original pH value of soil, crop root region saline soil weight and the employing obtaining according to mensuration, calculates the required salt-affected soil conditioning dosage of using.
According to the similar treatment scheme of aforesaid method, can obtain under different saline soil pH values, saline soil pH value is adjusted to the fitting formula of the required salt-affected soil conditioning dosage identical with above-mentioned weight percent component of predetermined pH value, and, saltiness fitting formula.And, can obtain under different saline soil pH values, saline soil pH value is adjusted to the salt-affected soil conditioning dosage that component that predetermined pH is worth required Different Weight per-cent is made, at this, exemplify no longer one by one.
For three embodiment, the salt-affected soil amendment of the embodiment of the present invention is used and is elaborated below.
Embodiment mono-: the salt-affected soil to plantation tomato is nursed one's health
In the embodiment of the present invention, salt-affected soil saltiness is higher, pH value is larger, and oxalic weight percent is also higher.Measuring salt-affected soil saltiness is 1.8g/kg, pH value is 7.6, and the salt-affected soil amendment proportioning that preparation applies tomato rhizosphere can be: straw biological carbon 5%, the wheat bran 10% under the Herba Oxalidis Corniculatae 30% of oven drying at low temperature, the soybean stalk 55% of pulverizing, 500 ℃ of conditions, made.When specifically using, before transplanting tomato seedling, spread manuer in holes, according to 50kg/ mu, apply salt-affected soil amendment.After using the salt-affected soil amendment of the embodiment of the present invention, to compare with the control group of not using salt marsh soil conditioner, tomato single fruit weight increases 37g, and the hardness of fruit promotes 0.6kg/cm
2, the indexs such as soluble solid, sugar-acid ratio, Lyeopene, Vc content are all improved, and output increases by 8～10%.
Embodiment bis-: the salt-affected soil to plant cotton is nursed one's health
The salt-affected soil saltiness of measuring plant cotton field is 2.3g/kg, pH value is 8.2, and the salt-affected soil amendment proportioning that applies Cotton rhizosphere is: straw biological carbon 10%, the wheat bran 12% under the Herba Oxalidis Corniculatae 38% of oven drying at low temperature, the soybean stalk 40% of pulverizing, 500 ℃ of conditions, made.Concrete application process is: in cotton, broadcast front row replacement (tomato is transplanted seedling, is cave one seedling during transplanting, is suitable for spreading manuer in holes, and cotton is to sow, so carry out row replacement), according to 70kg/ mu, apply salt-affected soil amendment.After using the salt-affected soil amendment of the embodiment of the present invention, compare with the control group of not using salt marsh soil conditioner, the minimizing that comes off of cotton bell, single bell heavily increases 0.31g, and velveteen is long improves 0.28mm than contrast, and output increases by 10～12%.
Embodiment tri-: kind of the salt-affected soil in herbivore certain herbaceous plants with big flowers field is nursed one's health
The salt-affected soil saltiness of measuring kind of herbivore certain herbaceous plants with big flowers field is 3.8g/kg, pH value is 8.9, and the salt-affected soil amendment proportioning that applies food certain herbaceous plants with big flowers rhizosphere is: straw biological carbon 10%, the wheat bran 10% under the Herba Oxalidis Corniculatae 45% of oven drying at low temperature, milling soya seeds stalk 35%, 500 ℃ of conditions, made.Concrete application process is: in food certain herbaceous plants with big flowers, broadcast front row replacement, according to 60kg/ mu, apply salt-affected soil amendment, and at root, spread manuer in holes once squaring period in food certain herbaceous plants with big flowers, according to 30kg/ mu, apply salt-affected soil amendment, (food certain herbaceous plants with big flowers field salt content is high, and pH value is also larger to apply altogether 90kg/ mu for twice, use twice and more can guarantee amendment effect, it is mainly seedling stage and squaring period that the anti-salt of food certain herbaceous plants with big flowers is produced crucial growthdevelopmental stage, due to now applying, is conducive to eat certain herbaceous plants with big flowers high yield).After using the salt-affected soil amendment of the embodiment of the present invention, to compare with the control group of not using salt marsh soil conditioner, food certain herbaceous plants with big flowers seedling rate improves 10%, and faceplate diameter increases 2.4cm, and output increases by 15～18%.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a salt-affected soil amendment, is characterized in that, this salt-affected soil amendment comprises following component: Herba Oxalidis Corniculatae, soybean stalk, straw biological carbon and wheat bran, wherein,
The weight percent dry weight of each component is respectively: Herba Oxalidis Corniculatae 25%～55%, soybean stalk 30%～55%, straw biological carbon 5%～15% and wheat bran 10%～25%, after each component is pulverized, by above-mentioned weight percent, mix, and fully mix.
2. salt-affected soil amendment as claimed in claim 1, is characterized in that, described straw biological carbon selects a kind of or its arbitrary combination in the multiple stalks such as maize straw, wheat stalk, rice straw to make through carbonization.
3. salt-affected soil amendment as claimed in claim 2, is characterized in that, described carbonization temperature is set to 400-500 ℃.
4. salt-affected soil amendment as claimed in claim 1, is characterized in that, described Herba Oxalidis Corniculatae adopts oven drying at low temperature, and the temperature range of described oven drying at low temperature is 40 ℃～90 ℃.
5. salt-affected soil amendment as claimed in claim 4, is characterized in that, described Herba Oxalidis Corniculatae is selected and contains the flower Herba Oxalidis Corniculatae in early stage.
6. salt-affected soil amendment as claimed in claim 1, is characterized in that, described soybean stalk adopt air-dry or dry after pulverize again.
7. salt-affected soil amendment as claimed in claim 1, is characterized in that, regulates the weight percent of each component in described salt-affected soil amendment according to the pH value of the saltiness of salt-affected soil to be regulated, salt-affected soil.
8. salt-affected soil amendment as claimed in claim 7, is characterized in that, further according to area, root system regional depth and the arable farming mode to be planted in crop root to be planted region, calculates amount of application and the application times of salt-affected soil amendment.
9. salt-affected soil amendment as claimed in claim 1, it is characterized in that, according to the saline soil weight in crop root to be planted region, saline soil pH value and the pH value for the treatment of kind of plant optimum growh, calculate the required salt-affected soil conditioning dosage of corresponding variant component proportion.
10. salt-affected soil amendment as claimed in claim 1, is characterized in that,
Described salt-affected soil saltiness is 1.8g/kg, pH value is 7.6, the salt-affected soil amendment proportioning that preparation applies tomato rhizosphere can be: straw biological carbon 5%, the wheat bran 10% under the Herba Oxalidis Corniculatae 30% of oven drying at low temperature, the soybean stalk 55% of pulverizing, 500 ℃ of conditions, made, before transplanting tomato seedling, spread manuer in holes, according to 50kg/ mu, apply salt-affected soil amendment; Or,
Described salt-affected soil saltiness is 2.3g/kg, pH value is 8.2, the salt-affected soil amendment proportioning that applies Cotton rhizosphere is: straw biological carbon 10%, the wheat bran 12% under the Herba Oxalidis Corniculatae 38% of oven drying at low temperature, the soybean stalk 40% of pulverizing, 500 ℃ of conditions, made, in cotton, broadcast front row replacement, according to 70kg/ mu, apply salt-affected soil amendment; Or,
Described salt-affected soil saltiness is 3.8g/kg, pH value is 8.9, the salt-affected soil amendment proportioning that applies food certain herbaceous plants with big flowers rhizosphere is: straw biological carbon 10%, the wheat bran 10% under the Herba Oxalidis Corniculatae 45% of oven drying at low temperature, milling soya seeds stalk 35%, 500 ℃ of conditions, made, in food certain herbaceous plants with big flowers, broadcast front row replacement, according to 60kg/ mu, apply salt-affected soil amendment, and at root, spread manuer in holes once squaring period in food certain herbaceous plants with big flowers, according to 30kg/ mu, apply salt-affected soil amendment, apply altogether 90kg/ mu twice.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104446775A (en) * | 2014-11-21 | 2015-03-25 | 中国农业科学院农业资源与农业区划研究所 | Granular organic composite straw fertilizer |
| CN104893734A (en) * | 2015-05-19 | 2015-09-09 | 山东省果树研究所 | A regulator for lowering the pH value of slightly-alkaline tea plantation soil, a preparing method thereof and applications of the regulator |
| CN105123008A (en) * | 2015-08-07 | 2015-12-09 | 中国科学院东北地理与农业生态研究所 | Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land |
| CN105733603A (en) * | 2016-03-03 | 2016-07-06 | 河北煜环环保科技有限公司 | Composition for treating mine soil pollution and method for remedying mine soil |
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| CN101161771A (en) * | 2007-11-29 | 2008-04-16 | 中国烟草总公司郑州烟草研究院 | Tobacco plant rhizosphere alkaline soil organic regulator |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101161771A (en) * | 2007-11-29 | 2008-04-16 | 中国烟草总公司郑州烟草研究院 | Tobacco plant rhizosphere alkaline soil organic regulator |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104446775A (en) * | 2014-11-21 | 2015-03-25 | 中国农业科学院农业资源与农业区划研究所 | Granular organic composite straw fertilizer |
| CN104893734A (en) * | 2015-05-19 | 2015-09-09 | 山东省果树研究所 | A regulator for lowering the pH value of slightly-alkaline tea plantation soil, a preparing method thereof and applications of the regulator |
| CN104893734B (en) * | 2015-05-19 | 2018-04-17 | 山东省果树研究所 | A kind of conditioning agent, preparation method and applications for being used to reduce meta-alkali tea garden soil pH value |
| CN105123008A (en) * | 2015-08-07 | 2015-12-09 | 中国科学院东北地理与农业生态研究所 | Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land |
| CN105123008B (en) * | 2015-08-07 | 2017-04-12 | 中国科学院东北地理与农业生态研究所 | Method assembling straw biochar with microbe bacteria fertilizer so as to improve saline land |
| CN105733603A (en) * | 2016-03-03 | 2016-07-06 | 河北煜环环保科技有限公司 | Composition for treating mine soil pollution and method for remedying mine soil |
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