LU503266B1 - Foreign soil spray-seeding substrate and its preparation method - Google Patents
Foreign soil spray-seeding substrate and its preparation method Download PDFInfo
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- LU503266B1 LU503266B1 LU503266A LU503266A LU503266B1 LU 503266 B1 LU503266 B1 LU 503266B1 LU 503266 A LU503266 A LU 503266A LU 503266 A LU503266 A LU 503266A LU 503266 B1 LU503266 B1 LU 503266B1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/10—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material
- A01G24/17—Growth substrates; Culture media; Apparatus or methods therefor based on or containing inorganic material containing slag
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/20—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material
- A01G24/22—Growth substrates; Culture media; Apparatus or methods therefor based on or containing natural organic material containing plant material
- A01G24/25—Dry fruit hulls or husks, e.g. chaff or coir
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
- A01G24/30—Growth substrates; Culture media; Apparatus or methods therefor based on or containing synthetic organic compounds
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Abstract
According to the invention, soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer are used as main raw materials, and the obtained soil spray-seeding substrate can be stable for a long time, and the fertilizer efficiency time is long; And the use of solid wastes makes it environmentally friendly and low-priced, and can effectively improve the greening effect. In addition, the substrate improves the problems of poor structure, less aggregate structure, lack of nutrients and the like of soil formed by traditional substrate spray-seeding, as well as the instability caused by the failure of binder. The invention adopts sludge compost as raw material, which can replace the non-renewable peat soil resources, effectively reduce the cost. And the harmless, reduction and resource utilization of the sludge in sewage treatment plant can be realized. The use of sludge compost, sawdust and bio-organic fertilizer also solves the problem of solid waste stacking.
Description
DESCRIPTION 0503266
FOREIGN SOIL SPRAY-SEEDING SUBSTRATE AND ITS PREPARATION
METHOD
The invention relates to the field of water and soil protection, in particular to a foreign soil spray-seeding substrate and its preparation method.
Foreign soil spray-seeding is to fully mix the mixture of plant seeds, fertilizer, water-retaining agent, binder, peat soil, etc., and then spray it evenly to the engineering slope to be protected by high-pressure equipment and jet machine according to the designed thickness, so as to achieve the goal of quickly greening and stabilizing barren slope through reasonable maintenance and management of plant growth.
Grass charcoal is peat, which is the product of swamp development. The organic content of peat soil is more than 30% (foreign countries think it should be more than 50%), its texture is soft and easy to break up, its specific gravity is 0.7-1.05, and it is mostly brown or black. It is flammable and breathable, and its pH value is generally 5.5-6.5. It is slightly acidic and distributed in layers, which is called peat layer. And it is an important symbol of swamp development speed and degree, and it is a valuable natural resource. At the same time, itis also a non-renewable resource.
At present, the artificial soil formed by spray-seeding has the phenomenon that the vegetation coverage is reduced due to the lack of nutrients in the later stage; According to the actual engineering situation, at present, the varieties of binders sold on the market are mixed with good and bad products, and the short acting time of the binder leads to the weakening of soil and water conservation effect of foreign soil spray-seeding, and the stability of foreign soil spray-seeding substrate is reduced, which brings infinite potential safety hazards. In the prior technology, peat soil is used as the raw material of foreign soil spray-seeding substrate, although the effect is good, but because peat soil is a non-renewable resource, its reserves will be reduced and the use cost will be higher and higher after long-term use, and the government has restricted the exploitation at present. In addition, sewage treatment plants will produce a certain amount oF 503266 sludge in the process of sewage treatment, including domestic sewage sludge, industrial wastewater sludge and water supply sludge. In the prior technology, it is also necessary to continuously treat the generated sludge harmlessly. Although the government encourages its utilization, it is urgent to broaden the utilization field to solve the "export" problem.
In view of this, the present invention is proposed.
The first purpose of the present invention is to provide the foreign soil spray-seeding substrate, which has the advantages of long-term stability, long fertilizer efficiency, secondary utilization of solid waste, resource saving, cost reduction, and effective improvement of greening effect.
The second purpose of the present invention is to provide the preparation method of the foreign soil spray-seeding substrate, which has simple process and low cost, and is suitable for large-scale production.
In order to realize the above purposes of the present invention, the following technical schemes are adopted:
The foreign soil spray-seeding substrate, and the foreign soil spray-seeding substrate is mainly prepared from soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer;
Wherein the mass ratio of soil to sludge compost is 9: 1-3: 2, the volume of sawdust is 10%-40% of the volume of sludge compost, the dosage of water-retaining agent in the foreign soil spray-seeding substrate is 0.2-0.5kg/m°, the dosage of binder in the foreign soil spray-seeding substrate is 0.3-0.6kg/m*, and the dosage of bio-organic fertilizer in the foreign soil spray-seeding substrate is 2.5-5.5kg/m°.
The foreign soil spray-seeding substrate of the invention takes soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer as main raw materials, and adopts specific dosage ratio combination. The obtained foreign soil spray-seeding substrate is suitable for wet and dry spraying, and can be stable for a long time, with long fertilizer efficiency.
The use of solid wastes makes it environmentally friendly and low-priced, which can effectively 909566 improve the greening effect.
The foreign soil spray-seeding substrate of the invention improves the problems of poor structure, less aggregate structure, lack of nutrients and the like of soil formed by traditional substrate spray-seeding, as well as the instability caused by the failure of binder.
The foreign soil spray-seeding substrate of the invention adopts sludge compost as raw material, which can replace the non-renewable peat soil resources used in the prior technology.
On the premise of effectively reducing the cost, the obtained foreign soil spray-seeding substrate can be stable for a long time, and the fertilizer efficiency time is long, so that the greening effect can be effectively improved, and the harmless, reduction and resource utilization of sludge in sewage treatment plants can be realized. The use of sludge compost, sawdust and bio-organic fertilizer also solves the problem of solid wastes stacking.
Compared with the traditional substrate, each index of the foreign soil spray-seeding substrate of the invention can reach the standard of the traditional substrate, in which the early growth of plants, plant biomass, soil fertility, anti-erosion ability and the like are greatly improved, so that the water conservation effect of the foreign soil spray-seeding substrate is improved, the greening quality is improved, and the investment cost is reduced.
Preferably, the mass ratio of the soil and sludge compost is 4: 1-7: 3, more preferably 4: 1.
Adopting a specific mass ratio of soil and sludge compost can improve the water content and organic matter content of the obtained foreign soil spray-seeding substrate, prolong fertilizer efficiency, and facilitate transportation and spray-seeding.
Preferably, the volume of sawdust is 20%-30% of the volume of sludge compost, further preferably 30%.
Preferably, the binder comprises the water-soluble binder,
Further preferably, the binder comprises the polyacrylamide binder.
And the dosage of the foreign soil spray-seeding substrate is 0.4-0.5kg/m°, preferably 0.4kg/m°.
The attachment and stability of artificial soil mainly involves the improvement of physical and mechanical properties of soil, such as cohesiveness, adhesiveness and plasticity, which can be solved by rational utilization and proportion of binder, soil stabilizer and plant fiber. The use 503266 of binder provides stronger adhesion between fiber and soil and fiber, which can prevent the loss of artificial soil caused by wind and rain. Its rational use also involves the type of soil. Soil with different texture has different inherent viscosity, so the amount of binder should be different. The quantity of sandy soil is larger, the quantity of cohesive soil can be reduced, and the soil can be used according to the conventional quantity. In the spraying process of mixed slurry, the binder also has the functions of lubricating, preventing fibers from clumping and reducing the resistance of mixed slurry in pipelines and pumps. The main function of the binder is to improve the adhesion of wood fibers to the soil and make the fibers adhere to each other, so as to ensure that the sprayed layer can resist wind erosion and rain without falling off. Binders and water-retaining agents should match each other without weakening their respective functions, and at the same time, they should be harmless to the environment.
Sawdust refers to the foam sawdust of trees scattered from trees during wood processing.
China is a country with underdeveloped forestry resources, but sawdust can be used to develop many products that are beneficial to people's production and life. In the foreign soil spray-seeding substrate of the invention, plant fibers in sawdust can be combined with the binder, so that the adhesion performance of wood fibers to soil is improved, and the long-term use stability of the foreign soil spray-seeding substrate of the invention is improved; And sawdust contains certain nutrients and cellulose, hemicellulose, lignin, protein and ash elements, which not only contains more organic matter, but also nitrogen, phosphorus, potassium and other nutritional elements. After long-term decomposition, it can also provide nutrients for plants, promote microbial activities, accelerate the decomposition of organic substances and the transformation of mineral nutrients, increase nitrogen, phosphorus, potassium and other elements in the soil, and reduce the amount of chemical fertilizer used.
Preferably, the dosage of the water-retaining agent in the foreign soil spray-seeding substrate is 0.3-0.4kg/m°, preferably 0.4kg/m°.
Preferably, the water-retaining agent comprises acrylamide water-retaining agent.
Preferably, the dosage of the bio-organic fertilizer in the foreign soil spray-seeding substrate is 3.5-4 5kg/m°, preferably 3.5kg/m’.
Bio-organic fertilizer with a specific amount can promote the germination and growth 5 503266 plants, improve the soil, enhance the fertilizer retention capacity of the soil, and improve the chemical properties of the soil. If it is used too much, it will easily destroy the acid-base balance of the soil.
Preferably, the bio-organic fertilizer comprises one or more of decomposed livestock manure and decomposed crop straws.
Further preferably, the bio-organic fertilizer comprises chicken manure, preferably sterilized chicken manure.
The preparation method of the foreign soil spray-seeding substrate, and the raw materials are added into a stirrer according to the proportion, and are stirred and mixed.
The preparation method of the foreign soil spray-seeding substrate has simple process and low cost, and is suitable for large-scale production.
Preferably, in preparation, according to the requirements of the used stirrer, add an appropriate amount of water, and stir the mixture.
Further preferably, the amount of water added is 1/4 of the volume of the base material, and stir for 20-30min, and then preform the spray-seeding after it is fully stirred.
Compared with the prior technology, the invention has the beneficial effects that:
According to the invention, soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer are used as main raw materials, and is combined according to a specific dosage ratio, so that the obtained soil spray-seeding substrate can be stable for a long time, and the fertilizer efficiency time is long; and the use of solid wastes makes it environmentally friendly and low-priced, and can effectively improve the greening effect.
The foreign soil spray-seeding substrate of the invention improves the problems of poor structure, less aggregate structure, lack of nutrients and the like of soil formed by traditional substrate spray-seeding, as well as the instability caused by the failure of binder.
The foreign soil spray-seeding substrate of the invention adopts sludge compost as raw material, which can replace the non-renewable peat soil resources used in the prior technology.
On the premise of effectively reducing the cost, the obtained foreign soil spray-seeding substrate can be stable for a long time, and the fertilizer efficiency time is long, so that the greening effect can be effectively improved, and the harmless, reduction and resource utilization of the sludge hy 203266 sewage treatment plant can be realized. The use of sludge compost, sawdust and bio-organic fertilizer also solves the problem of solid waste stacking.
Compared with the traditional substrate, each index of the foreign soil spray-seeding substrate of the invention can reach the standard of the traditional substrate, in which the early growth of plants, plant biomass, soil fertility, anti-erosion ability and the like are greatly improved, so that the water conservation effect of the foreign soil spray-seeding substrate 1s improved, the greening quality is improved, and the investment cost is reduced.
The preparation method of the foreign soil spray-seeding substrate has simple process and low cost, and is suitable for large-scale production.
The technical schemes of the present invention will be clearly and completely described below with reference to specific embodiments, but those skilled in the field will understand that the following described embodiments are part of the embodiments of the present invention, not all of them, and are only used to illustrate the present invention, and should not be regarded as limiting the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative efforts belong to the scope of the present invention. If the specific conditions are not indicated in the embodiments, the conventional conditions or the conditions suggested by the manufacturer shall be followed. The reagents or instruments used, if the manufacturer is not indicated, are conventional products that can be purchased on the market.
The raw materials used in the embodiments of the invention include:
Soil: yellow brown soil, the typical soil in Beijing, was selected (screened with a 2cm aperture sieve),
Water-retaining agent: acrylamide water-retaining agent (copolymer of acrylamide and potassium acrylate), produced by Shanghai Qiaoyu Biotechnology Co., Ltd.;
Binder: polyacrylamide thickener, produced by Liaocheng Yongxing Environmental
Protection Technology Co., Ltd;
Chicken manure: from the chicken farm in Nankou Town, Changping County, Beijing; 7505266
Sludge compost: from Beijing Gaobeidian Sewage Treatment Plant.
Table 1 Basic physical and chemical properties of the tested soil
Volume-weight | Saturated Field Total | Capillary | Capillary | pH TN water | water-holding | porosity | porosity water content content content
Table 2 Physical and chemical properties of sludge compost
Rapidly | Rapidly | TN | Orga | As(m | Hg( | Pb(m | Cd( | Cr(m | Cu( | Zn(m | Ni(m available | available | (% | nic | g/kg) | mg/k | g/kg) | mg/k | g/kg) | mg/k | g/kg) | g/kg) potassiu | phosphor | ) | matt g) g) g) m(mg/kg | us(mg/kg er(% ) ) ) 2824 559.3 2.0 308 4.32 38 1.1 64 85 611 15 09 6
Table 3 Control standards for pollutants in agricultural sludge 7505266
On acidic soil(pH<6.5) On neutral and alkaline soil(pH>6.5)
Cd and its compounds (in 5 20
Cd)
Hg and its compounds (in 5 15
Hg)
Pb and its compounds (in 300 1000
Pb)
Cr and its compounds (in 1000
Cr)
As and its compounds (in 75 75
As)
Boron and its compounds 150 150 (in water-soluble B)
Cu and its compounds (in 250 250
Cu)
Zn and its compounds (in 500 500
Zn)
Ni and its compounds (in 100 200
Ni)
Note: The table is based on GB 4284-84. People's Republic of China (PRC) Standard
Control Standard for Pollutants in Agricultural Sludge.
Table 4 Test indicators and methods 7505266
TN Semimicro-kjeldahl method determination
Rapidly available K Measurement by inductively coupled plasma mass spectrometry and atomic fluorescence spectrometry
Note: After 24 hours of substrate proportioning, measure its water content and hardness, and then measure it every 24 hours until it 1s stable.
Embodiment 1
The preparation method of the foreign soil spray-seeding substrate, and add soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer into a stirrer, and stir and mix to obtain the foreign soil spray-seeding substrate;
The mass ratio of soil to sludge compost is 9: 1, the volume of sawdust is 10% of the volume of sludge compost, the dosage of water-retaining agent in the foreign soil spray-seeding substrate is 0.2kg/m°, the dosage of binder in the foreign soil spray-seeding substrate is 0.3kg/m, and the dosage of bio-organic fertilizer in the foreign soil spray-seeding substrate is 2.5kg/m°.
Embodiment 2
The preparation method of the foreign soil spray-seeding substrate, and add soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer into a stirrer, and stir and mix to obtain the foreign soil spray-seeding substrate;
The mass ratio of soil to sludge compost is 9: 1, the volume of sawdust is 20% of the 503266 volume of sludge compost, the dosage of water-retaining agent in the foreign soil spray-seeding substrate is 0.3kg/m*, the dosage of binder in the foreign soil spray-seeding substrate is 0.4kg/m°, and the dosage of bio-organic fertilizer in the foreign soil spray-seeding substrate is 3.5kg/m°.
Embodiment 3
The preparation method of the foreign soil spray-seeding substrate, and add soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer into a stirrer, and stir and mix to obtain the foreign soil spray-seeding substrate;
The mass ratio of soil to sludge compost is 9: 1, the volume of sawdust is 30% of the volume of sludge compost, the dosage of water-retaining agent in the foreign soil spray-seeding substrate is 0.4kg/m°, the dosage of binder in the foreign soil spray-seeding substrate is 0.5kg/m’, and the dosage of bio-organic fertilizer in the foreign soil spray-seeding substrate is 4.5kg/m°.
Embodiment 4
The preparation method of the foreign soil spray-seeding substrate, and add soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer into a stirrer, and stir and mix to obtain the foreign soil spray-seeding substrate;
The mass ratio of soil to sludge compost is 9: 1, the volume of sawdust is 40% of the volume of sludge compost, the dosage of water-retaining agent in the foreign soil spray-seeding substrate is 0.5kg/m°, the dosage of binder in the foreign soil spray-seeding substrate is 0.6kg/m°, and the dosage of bio-organic fertilizer in the foreign soil spray-seeding substrate is 5.5kg/m°.
Experimental example 1
Pot experiment:
According to the different spray-seeding substrate formulas of the above embodiments, plant the Fitex regundo var. Heterapitvlla and Festuca efata in the plastic flowerpots with diameter of 15cm and height of 17cm for pot experiments. Each embodiment is provided with three flowerpots, and each pot is seeded with 100 randomly selected grass seeds (firstly, fill soil in the flowerpots, with a thickness of about 8cm, and then spray the spray-seeding substrate of the present invention with a thickness of about S5cm, then sow seeds of Witex negundo var. Heterophylla or Festuca elafa, and then cover the same spray-seeding substrate oF 203266 the present invention as the embodiments with a thickness of 2cm.
And the foreign soil spray-seeding substrate containing peat soil is adopted in the comparative examples, and its composition is shown in the following table:
Table 5 Proportion table of the substrate proportioning in comparative examples
Soil/the | Peat Sawdus/th | Water-retainin | Binder/th | Bio-organic mass soil/the e volume| gagent/the e total fertilizer/th fraction of | mass fraction of | total dosage in | dosage in e total accountin | fraction of | accounting substrate substrate | dosage in g for the | accountin | for the substrate total mass | g for the | total of soil and | total mass | volume of peat soil | of soil and | soil and peat soil peat soil
Comparativ | 65 35 20% 0.3kg/m° 0.4kg/m* | 3.5kg/m° e example 1
Comparativ | 50 50 20% 0.2kg/m° 0.3kg/m* | 2.5kg/m° e example 2
In the comparative examples, fill soil with a thickness of about 8cm into a flowerpot, then spray the substrate in comparative examples with a thickness of about Scm, then sow the seeds of
Vitex negundo var. Heferophylla or Festuca elata, and then cover the same substrate as comparative examples with a thickness of 2cm), which is cultured under natural light, and the temperature and humidity conditions of the experiment are kept at the same level.
After the start of the experiment, observe and record the growth height of plants regularly.
After 16 days of emergence, there are no new seedlings or dead seedlings of {7x negundo var. Heterophyllo and Festica eidia, and the emergence number is basically stable.
Record the growth height after 30 days, respectively. The results are shown in the following table:
Table 6 Data table of growth height of Vitex negundo var. Heterophylla and Festuca elata 0503266
Embodiments Festuca elata/cm Vitex negundo var. heterophylla/cm
It can be seen from Table 6 that the foreign soil spray-seeding substrate of the present invention is adopted, ans at the same time, compared with the prior technology, the foreign soil spray-seeding substrate with peat soil is more conducive to the growth of YWitex negundo var. Heteroplplla and Festuca siata, and the foreign soil spray-seeding substrate is more conducive to the growth of spray-seeding plants in slope greening and can greatly promote the growth of plants.
Experimental example 2
Artificial rainfall erosion test:
Spray the spray-seeding substrate of the embodiments of the invention and the comparative 503266 examples (pure soil without any spray-seeding substrate) in 0.8m*0.4m*0.1m erosion grooves, and each embodiment is provided with three erosion grooves, each of which is provided with four slopes (35°, 45°, 55° and 65°) and three rainfall intensities (30mm/h, 60mm/h and 90mm/h).
Carry out rainfall for 30 minutes at each slope and each rainfall intensity. During the period, collect independently the total amount of runoff and five times of runoff every five minutes, and then stand and precipitate. And filter the supernatant to leave the sediment in an aluminum box, then dry and weigh it, and calculated respectively the average total sediment weight of each
Embodiment. The Comparative examples use the same substrate as Experimental example 1, and the results are as follows:
Table 7 Measurement results of artificial rainfall erosion of foreign soil spray-seeding 0503266 substrate of the present invention odi | 35°/ | 45°/ | 55°/ | 65°/ | 35°/ | 45° | 55°/ | 65° | 35°/ | 45°/ | 55°/ | 65° men | ave | ave | ave | ave | aver | aver | aver | aver | aver | aver | aver | aver ts | rag | rag | rag | rag | age | age | age | age | age | age | age | age e e e e | total | total | total | total | total | total | total | total tota | tota | tota | tota | sedi | sedi | sedi | sedi | sedi | sedi | sedi | sedi 1 1 1 1 | men | men | men | men | men | men | men | men sedi | sedi | sedi | sedi | t t t t t t t t me | me | me | me | wei | wel | wel | wei | wei | wel | wel | wel nt nt nt nt | ght | ght | ght | ght | ght | ght | ght | ght wei | wei | wei | wei | (2) | (2) | @& (©) | (® | (® | @ | (® ght | ght | ght | ght @ | @ | © ©
Emb odi | 23 | 255 | 26 | 28 | 35 | 37 | 39 | 41 5.2 | 555 | 5.7 | 5.9 men t1
Emb odi | 2.3 | 24 | 26 | 28 | 35 | 37 | 38 | 41 52 | 54 | 5.7 | 5.9 men t2
Emb odi | 2.3 | 24 25 | 2.7 | 35 | 37 | 38 | 40 | 52 | 53 56 | 58 men t3
Emb odi | 23 | 24 25 | 26, 35 37 | 38 | 39 | 52 | 53 5.5 | 5.7 men
EE
Emb odi | 22 | 24 25 | 26 33 | 35 | 3.7 | 39 | 50 | 52 | 54 | 56 men t5
Emb odi | 22 | 23 | 25 | 26 | 33 | 35 | 3.6 | 3.9 | 5.0 52 | 54 | 56 men t6
Emb odi | 22 | 23 25 | 26, 33 | 35 | 36 | 3.9 | 50 | 52 | 53 5.6 men t7
Emb odi | 2.2 | 23 | 24 | 2.55 | 33 | 34 | 35 | 3.7 | 50 | 5.1 5.2 | 54 men t8
Emb odi | 2.1 | 22 | 24 | 255 | 33 | 34 | 35 | 36 | 49 | 5.1 5.2 | 53 men t9
Emb odi | 2.1 | 22 | 23 | 2.5 | 32 | 34 | 35 | 36 | 49 | 5.1 5.2 | 53 men t10
Emb odi | 2.1 | 22 | 23 | 24 | 32 | 33 | 34 | 36 | 49 | 50 | 5.1 5.3 men oT TT TT TT] re
Emb odi | 2.1 | 22 | 23 | 24 | 32 | 33 | 34 | 35 | 49 | 50 51 5.3 men t12
Emb odi | 20 | 2.1) 22 | 24 | 3.1 | 32 | 33 | 34 | 48 | 50 | 5.1 5.2 men t 13
Emb odi | 2.0 21) 22 23 |) 31 | 32 | 33 | 34 | 48 | 49 | 50 | 5.1 men t14
Emb odi | 2.0 20 22 | 23 | 31 | 32 | 32 | 34 | 48 | 49 | 50 | 50 men t15
Emb odi | 20 | 21 2.1 22 | 31 | 32 | 32 | 33 | 48 | 49 | 49 | 50 men t14
Com para | 58. | 59. | 61. | 63. | 643 | 66.8 | 69.1 | 71.3 | 73.6 | 75.8 | 78.1 | 80.3 tive 6 7 5 4 exa mpl el
Com para | 59. | 61. | 63. | 65. | 68.9 | 70.8 | 72.5 | 74.9 | 76.2 | 78.7 | 81.6 | 84.5 five 2 5 LU503266 exa mpl e2
It can be seen from Table 7 that the foreign soil spray-seeding substrate of the present invention has better rain erosion resistance compared with the traditional soil substrate. In the experiment, when the experiment is carried out on the Comparative examples repeatedly, the instability and collapse also occur, and the foreign soil spray-seeding substrate of the present invention is more suitable for the growth of plants on the slope.
According to the invention, soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer are used as main raw materials, and is combined according to a specific dosage ratio, so that the obtained soil spray-seeding substrate can be stable for a long time, and the fertilizer efficiency time is long; and the use of solid wastes makes it environmentally friendly and low-priced, and can effectively improve the greening effect.
The foreign soil spray-seeding substrate of the invention improves the problems of poor structure, less aggregate structure, lack of nutrients and the like of soil formed by traditional substrate spray-seeding, as well as the instability caused by the failure of binder.
The foreign soil spray-seeding substrate of the invention adopts sludge compost as raw material, which can replace the non-renewable peat soil resources used in the prior technology.
On the premise of effectively reducing the cost, the obtained foreign soil spray-seeding substrate can be stable for a long time, and the fertilizer efficiency time is long, so that the greening effect can be effectively improved, and the harmless, reduction and resource utilization of the sludge in sewage treatment plant can be realized. The use of sludge compost, sawdust and bio-organic fertilizer also solves the problem of solid waste stacking.
Compared with the traditional substrate, each index of the foreign soil spray-seeding substrate of the invention can reach the standard of the traditional substrate, in which the early growth of plants, plant biomass, soil fertility, anti-erosion ability and the like are greatly improved, so that the water conservation effect of the foreign soil spray-seeding substrate is improved, the greening quality is improved, and the investment cost is reduced.
The preparation method of the foreign soil spray-seeding substrate has simple process and 503266 low cost, and is suitable for large-scale production.
Although the invention has been illustrated and described with specific embodiments, it should be realized that the above embodiments are only used to illustrate the technical schemes of the invention, but not to limit them; Those skilled in the field should understand that without departing from the spirit and scope of the present invention, the technical schemes described in the foregoing embodiments can be modified, or some or all technical features can be equivalently replaced; These modifications or substitutions do not make the essence of the corresponding technical schemes depart from the scope of the technical schemes of various embodiments of the present invention; Therefore, it is meant to include all such alternatives and modifications that fall within the scope of the present invention in the appended claims.
Claims (10)
1. A foreign soil spray-seeding substrate is characterized in that the foreign soil spray-seeding substrate is mainly prepared from soil, sludge compost, sawdust, water-retaining agent, binder and bio-organic fertilizer; wherein the mass ratio of soil to sludge compost is 9: 1-3: 2, the volume of sawdust is 10%-40% of the volume of sludge compost, the dosage of water-retaining agent in the foreign soil spray-seeding substrate is 0.2-0.5kg/m°, the dosage of binder in the foreign soil spray-seeding substrate is 0.3-0.6kg/m*, and the dosage of bio-organic fertilizer in the foreign soil spray-seeding substrate is 2.5-5.5kg/m°.
2. The foreign soil spray-seeding substrate according to claim 1 is characterized in that the mass ratio of soil to sludge compost is 4: 1-7: 3, preferably 4: 1.
3. The foreign soil spray-seeding substrate according to claim 1 is characterized in that the volume of sawdust is 20%-30% of the volume of sludge compost, preferably 30%.
4. The foreign soil spray-seeding substrate according to claim 1 is characterized in that the dosage of the water-retaining agent in the foreign soil spray-seeding substrate is 0.3-0.4kg/m°, preferably 0.4kg/m°.
5. The foreign soil spray-seeding substrate according to claim 1 is characterized in that the dosage of the foreign soil spray-seeding substrate is 0.4-0.5kg/m°, preferably 0.4kg/m°.
6. The foreign soil spray-seeding substrate according to claim 1 1s characterized in that the dosage of the bio-organic fertilizer in the foreign soil spray-seeding substrate is 3.5-4 5kg/m°, preferably 3.5kg/m°.
7. The foreign soil spray-seeding substrate according to claim 1 1s characterized in that the bio-organic fertilizer comprises one or more of decomposed livestock manure and decomposed crop straws.
8. The foreign soil spray-seeding substrate according to claim 1 is characterized in that the water-retaining agent comprises acrylamide water-retaining agent.
9. The foreign soil spray-seeding substrate according to claim 1 1s characterized in that the binder comprises the water-soluble binder, preferably the polyacrylamide binder.
10.The preparation method of the foreign soil spray-seeding substrate according to claims 503266 1-9 is characterized in that the raw materials are added into a stirrer according to the proportion, and are stirred and mixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU503266A LU503266B1 (en) | 2022-12-28 | 2022-12-28 | Foreign soil spray-seeding substrate and its preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LU503266A LU503266B1 (en) | 2022-12-28 | 2022-12-28 | Foreign soil spray-seeding substrate and its preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| LU503266B1 true LU503266B1 (en) | 2023-06-30 |
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ID=87003377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| LU503266A LU503266B1 (en) | 2022-12-28 | 2022-12-28 | Foreign soil spray-seeding substrate and its preparation method |
Country Status (1)
| Country | Link |
|---|---|
| LU (1) | LU503266B1 (en) |
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2022
- 2022-12-28 LU LU503266A patent/LU503266B1/en active IP Right Grant
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| FG | Patent granted |
Effective date: 20230630 |