CN102150546A - High-selenium corn straw and cultivation method and application thereof - Google Patents
High-selenium corn straw and cultivation method and application thereof Download PDFInfo
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Abstract
The invention discloses a high-selenium corn straw and a cultivation method and application thereof. The content of selenium in the high-selenium corn straw is between 0.5 and 200 mu g/kg, and the organic selenium content is more than or equal to 70 percent. The cultivation method comprises the following steps of: simultaneously sowing corn seeds and fertilizers into fields; fertilizing in a row spacing application mode after the final singling of corns and before the stem pushing of the corns; and fertilizing in a hole application mode within 10 to 15 days before corn tassels are sprouted. A fertilizer is mixed with an effective amount of nano selenium plant nutrition agent when the fertilizer is applied in any fertilization step. The high-selenium corn straw has stable selenium content and can be used as a selenium-enriched animal feed so as to supply safe selenium supplementing fowl and livestock products to humans. The method has high maneuverability; and by the method, standardized production can be realized, and the stability of the content of the selenium in the produced corn straw is ensured.
Description
Technical field
The present invention relates to a kind of high selenium maize straw, and the breeding method of this high selenium maize straw and application, agricultural fertilizer and feed applications technical field belonged to.
Technical background
Selenium is the essential trace element of animal and human's body, and scarce selenium can have a strong impact on the healthy of people.Selenium can improve immunity, the removing free radical of human body, protection optic nerve, heart and liver etc., and can prevent major diseases such as diabetes, cardiovascular and cerebrovascular disease, hepatopathy, cataract, arthritis, Keshan disease, Kaschin-Beck disease.Selenium still is a kind of powerful antioxidant, is called as with the vitamin E synergy and removes free radical oxidation resistant " gold partner ", and selenium is described as " kindling material of life ", " anticancer king ".
The form of selenium often is divided into organic selenium and inorganic selenium.Inorganic selenium comprises selenite, selenate, selenides and elemental selenium, and organic selenium comprises selenomethionine, selenocystine and selenocysteine etc.Inorganic selenium is difficult to directly be absorbed by animal and human body, and body can absorb organic selenium by the active transport of intestines wall.Animal toxicity test shows, inorganic selenium such as sodium selenite, and the rat oral half lethal dose is 7mg/kg, and organic selenium, is 30-40mg/kg as the half lethal dose of methionine.Because inorganic selenium has bigger toxicity, and is difficult for being absorbed, be not suitable for the humans and animals safe handling, state governments such as Japan have prohibited inorganic seleniums such as using sodium selenite in all animal feeds.
The people of nearly more than 40 countries and regions, the whole world is in poor selenium, low selenium band.China has more than 70% area, about 700,000,000 people be in poor selenium and low selenium district.The selenium amount that these regional daily meals of resident are taken in does not reach minimal requirement (50-250 microgram every day) far away, and this is unfavorable to health.1974, U.S. food and administration of health office regulation for the guarantor can obtain enough selenium, must be added a certain amount of selenium in the feed of edible animal; After this twice expansion and improved the interpolation scope and the dosage of selenium again in 1989, and people's daily intake is decided to be 200 micrograms.Now, rational exploitation and utilization selenium resource, produce rich selenium agricultural and animal products and natural selenium-rich health food, become a new focus of China's health food industry gradually.
Relevant result of laboratory test shows, maize straw contains carbohydrate more than 30%, 2%～4% protein and 0.5%～1% fat, but both ensilings also can directly be fed.With regard to herbivore, 2 kilograms maize straw net energy for gain is equivalent to 1 kilogram corn kernel, particularly after ensiling, yellow storage, ammonification and saccharification etc. are handled, can increase operation rate, and benefit will be striven more considerable.Analyze according to the study, contained digestible energy is 2235.8 kilojoule per kilogram in the maize straw, and nutritious, and gross energy and herbage are suitable.Maize straw is carried out retrofit handle, be made into high nutrition animal feeding-stuff, not only help developing animal husbandry, and have good ecological benefits and economic benefit.
Application number is that the Chinese patent application of 200810137436.X has been announced the method for producing corn straw feedstuff, the method of this invention production corn straw feedstuff is the stage of wax ripeness (in 40 days scopes) at corn growth, 2～3 centimeters on a slice leaf (or two leaves) leaf joint cut off the top of plant and/or extract the following maize leaves of fringe inferior lobe (or under the fringe inferior lobe a slice leaf) on the leaf from the fringe, as the corn straw feedstuff of gathering in the crops.But this invention has just utilized the part maize leaves, has not utilized maize straw fully.There is not public technology to relate to high selenium maize straw at present as yet, and the breeding method of this high selenium maize straw and application.
Summary of the invention
The object of the invention is to provide a kind of high selenium maize straw, and it is not enough and cause being difficult to carry out as maize straw in Se-enriched feedstuff additive and the prior art problem such as rich selenium cultivation to have solved in the prior art maize straw Se content.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of high selenium maize straw, the Se content that it is characterized in that described high selenium maize straw is between 0.5-200 μ g/kg, and organic selenium content 〉=70%.
Preferably, the Se content of described high selenium maize straw is between 10-200 μ g/kg, and organic selenium content 〉=70%.
Preferably, the Se content of described high selenium maize straw is between 10-200 μ g/kg, and organic selenium content 〉=80%.
Another object of the present invention is to provide a kind of breeding method of high selenium maize straw, it is characterized in that described breeding method comprises corn seed and fertilizer are broadcast simultaneously into the field; After the corn final singling, to jointing, apply fertilizer in the mode of row replacement in the ranks; The step of before maize male ears is extracted out, applying fertilizer in the mode of spreading manuer in holes in 10-15 days; In fertilizer, sneak into the nanometer selenium plant nutrient agent of effective dose when applying fertilizer in above-mentioned any fertilising step.
Preferably, in the described method when corn seeding, with the base manure and the nanometer selenium plant nutrient agent of every mu of 0.05-20 kilogram consumption evenly mix the back and corn seed broadcast simultaneously into the field; The nanometer selenium plant nutrient agent accounts for nanometer selenium plant nutrient agent and more than 10% of base manure mixture total weight amount.
Preferably, in the described method after the corn final singling to jointing, when milpa has the visible leaf of 5-6 sheet, topdress, the fertilizer that topdresses comprises the nanometer selenium plant nutrient agent of nitrogenous fertilizer and every mu of 0.1-40 kilogram consumption, topdress and adopt the mode of row replacement in the ranks to apply fertilizer, irrigate after the fertilising.
Preferably, in the described method before maize male ears is extracted out 10-15 days, as seen apply during leaf 12-13 sheet and topdress, the fertilizer that topdresses comprises the nanometer selenium plant nutrient agent of nitrogenous fertilizer and every mu of 0.1-40 kilogram consumption, topdress and adopt the mode of spreading manuer in holes to apply fertilizer, irrigate after the fertilising.
The present invention also provides the application of a kind of high selenium maize straw as the feed addictive aspect.
Preferably, described feed addictive is pulverized by high selenium maize straw being dried the back, and acceptable carrier is mixed thoroughly to granulate and formed on the adding bromatology.
The invention provides a kind of high selenium maize straw.It is 0.5-200 microgram/kilogram that this high selenium maize straw contains selenium, and wherein organic selenium accounts for total selenium ratio 〉=70%, and promptly its organic selenium content is between 0.35-140 microgram/kilogram.With respect to common stalk, the Se content of this high selenium maize straw has improved tens of times to thousands of times, being used for feed adds, can effectively improve the selenium absorption level of animal, and wherein organic selenium accounts for total selenium ratio 〉=70%, be its organic selenium content between 0.35-140 microgram/kilogram, therefore safer, the animal assimilation effect is better.
The present invention also provides the breeding method of this high selenium maize straw.This method is utilized the nanometer selenium plant nutrient agent, and (Suzhou selenium paddy Science and Technology Ltd. produces, model is XGP001B) apply the corn field at special time period with ad hoc fashion, in conjunction with certain water and fertilizer management, make corn can fully absorb biological effectively selenium wherein lastingly.
Preferably, the technical scheme of this high selenium maize straw cultivation provided by the invention is as follows:
At first, when corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 0.05-20 kilogram nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplification mixes step by step again, and the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
Secondly, to jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 0.1-40 kilogram nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Once more, before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 0.1-40 kilogram nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
At last, manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The present invention also provides the application of this high selenium maize straw.This high selenium maize straw can be processed into feed addictive.Should dry the back pulverizing by high selenium maize straw, and add additive subsequently and mix thoroughly, in pelleter, become particle with the pinch roller extrusion processing by nog plate.
The technical scheme of this high selenium maize straw provided by the invention is as follows: behind the harvest corn, with maize straw at field airing certain hour (deciding) according to weather condition, treat that the water content of stalk reduces to certain level (generally 40%～50%), it directly is sent to processing factory carries out follow-up drying; Pulverizing machine with maize straw pulverizes the maize straw of drying; The maize straw of pulverizing is added additive mix thoroughly, in pelleter, become particle with the pinch roller extrusion processing by nog plate.Pack at last.
The present invention rubs in process and heats, and the inner amount of cure of stalk is deep and thorough, the feed granules any surface finish of processing, and hardness is moderate, and size is consistent, and its plastochondria diameter can be adjusted between 3 millimeters-12 millimeters as required, helps animal digestion and absorbs; The present invention makes full use of maize straw, and the environmental pollution of having avoided the land for growing field crops crop straw burning to bring has improved the added value of maize straw simultaneously, has good social benefit and economic benefit.
With respect to scheme of the prior art, advantage of the present invention is:
The invention provides a kind of high selenium maize straw, its selenium content can reach 1-200mg/kg, and wherein organic selenium content accounts for more than 70% of total selenium, can provide selenium source feed safely and effectively for animal, thereby the livestock product of safe selenium-complement is provided for the mankind.
The method of the high selenium maize straw of production provided by the invention is workable, can realize standardized production, and Se content is stable in the maize straw that guarantees to be produced.
The present invention adopts seed manure to apply fertilizer with the mode of broadcasting when corn seeding, after the corn final singling, apply fertilizer in the mode of row replacement in the ranks, before extracting out, maize male ears applied fertilizer in the mode of spreading manuer in holes in 10-15 days, take the fertilization mode that suits at the different vegetative stages of corn, and guarantee that corn has time enough to make full use of root system and absorbs the selenium that shifts in whole growth process, fertilizer efficiency continues, thereby has guaranteed the accumulation of selenium and the ratio of organic selenium in the maize straw.Simultaneously also avoided the direct foliage-spray of inorganic selenium solution residual in a large number to burning of causing of milpa and inorganic selenium.In conjunction with irrigating, promote milpa root system absorbing to fertilizer.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are used to the present invention is described and are not limited to limit the scope of the invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Embodiment 1
When corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 0.05 kilogram of nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplify step by step again and mix, the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
To jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 0.1 kilogram of nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 0.1 kilogram of nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The Se content of the maize straw of cultivating through said method can reach about 0.5mg/kg, and wherein the ratio of the shared total selenium of organic selenium more than 70%.
Embodiment 2
When corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 1 kilogram of nanometer selenium plant nutrient agent, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplify step by step again and mix, the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
To jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 2 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 2 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The Se content of the maize straw of cultivating through said method can reach about 10mg/kg, and wherein the ratio of the shared total selenium of organic selenium more than 70%.
Embodiment 3
When corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 5 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplify step by step again and mix, the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
To jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 10 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 10 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The Se content of the maize straw of cultivating through said method can reach about 50mg/kg, and wherein the ratio of the shared total selenium of organic selenium more than 70%.
Embodiment 4
When corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 10 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplify step by step again and mix, the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
To jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 20 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 20 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The Se content of the maize straw of cultivating through said method can reach about 100mg/kg, and wherein the ratio of the shared total selenium of organic selenium more than 70%.
Embodiment 5
When corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 15 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplify step by step again and mix, the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
To jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 30 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 30 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The Se content of the maize straw of cultivating through said method can reach about 150mg/kg, and wherein the ratio of the shared total selenium of organic selenium more than 70%.
Embodiment 6
When corn seeding, (Suzhou selenium paddy Science and Technology Ltd. produces with 20 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with granular fertilizer in the base manure, hybrid mode is for mixing nanometer selenium plant nutrient agent and a small amount of (as 1 kilogram) granular fertilizer earlier, amplify step by step again and mix, the amount of selenium fertilizer accounts for mixture ratio greater than 10% in the mixed fertilizer, and following fertilizer hybrid mode is all like this.Then corn seed and mixed fertilizer are broadcast simultaneously into the field, realized that seed manure is with broadcasting.
To jointing, generally topdress when the visible leaf of plant 5-6 sheet after the corn final singling, topdress and be mainly nitrogen manure (as urea) this moment.(Suzhou selenium paddy Science and Technology Ltd. produces with 40 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, open in the centres of corn two row then one loose about 10 centimetres, dark about 15 centimetres ditch, mixed fertilizer is evenly applied in the ditch, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Before maize male ears is extracted out 10-15 days, apply during visible leaf 12-13 sheet and topdress, topdress at this moment and be mainly nitrogen manure.(Suzhou selenium paddy Science and Technology Ltd. produces with 40 kilograms of nanometer selenium plant nutrient agents, model is XGP001B) evenly mix with nitrogenous fertilizer, near every milpa root, dig then one wide about 10 centimetres, dark about 10 centimetres hole, mixed fertilizer is evenly applied in the hole, and earthing is filled and led up then.After applying mixed fertilizer, irrigate, every mu of water consumption 20-40 cubic meter is to promote corn through the soil solution absorbing selenium in soil and the fertilizer.
Manage in conjunction with normal liquid manure, weeding and the extermination of disease and insect pest, until harvest corn.
The Se content of the maize straw of cultivating through said method can reach about 200mg/kg, and wherein the ratio of the shared total selenium of organic selenium more than 70%.Comparative result is as shown in table 1.
The high selenium maize straw result that table 1 embodiment 1～6 obtains
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All spirit essence is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (9)
1. one kind high selenium maize straw, the Se content that it is characterized in that described high selenium maize straw is between 0.5-200 μ g/kg, and organic selenium content 〉=70%.
2. high selenium maize straw according to claim 1, the Se content that it is characterized in that described high selenium maize straw is between 10-200 μ g/kg, and organic selenium content 〉=70%.
3. high selenium maize straw according to claim 1, the Se content that it is characterized in that described high selenium maize straw is between 10-200 μ g/kg, and organic selenium content 〉=80%.
4. the breeding method of a high selenium maize straw is characterized in that described breeding method comprises corn seed and fertilizer are broadcast simultaneously into the field; After the corn final singling, to jointing, apply fertilizer in the mode of row replacement in the ranks; The step of before maize male ears is extracted out, applying fertilizer in the mode of spreading manuer in holes in 10-15 days; In fertilizer, sneak into the nanometer selenium plant nutrient agent of effective dose when applying fertilizer in above-mentioned any fertilising step.
5. method according to claim 4 is characterized in that in the described method when corn seeding, the base manure and the nanometer selenium plant nutrient agent of every mu of 0.05-20 kilogram consumption is evenly mixed the back and corn seed is broadcast simultaneously into the field; The nanometer selenium plant nutrient agent accounts for nanometer selenium plant nutrient agent and more than 10% of base manure mixture total weight amount.
6. method according to claim 4, it is characterized in that in the described method after the corn final singling to jointing, when having the visible leaf of 5-6 sheet, milpa topdresses, the fertilizer that topdresses comprises the nanometer selenium plant nutrient agent of nitrogenous fertilizer and every mu of 0.1-40 kilogram consumption, topdress and adopt the mode of row replacement in the ranks to apply fertilizer, irrigate after the fertilising.
7. method according to claim 4, it is characterized in that in the described method before maize male ears is extracted out 10-15 days, as seen apply during leaf 12-13 sheet and topdress, the fertilizer that topdresses comprises the nanometer selenium plant nutrient agent of nitrogenous fertilizer and every mu of 0.1-40 kilogram consumption, topdress and adopt the mode of spreading manuer in holes to apply fertilizer, irrigate after the fertilising.
8. the described high selenium maize straw of claim 1 is as the application of feed addictive aspect.
9. application according to claim 8 is characterized in that described feed addictive by high selenium maize straw being dried the back pulverizing, and acceptable carrier is mixed thoroughly to granulate and formed on the adding bromatology.
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| CN102511273A (en) * | 2011-12-12 | 2012-06-27 | 苏州硒谷科技有限公司 | Wheat rich in organic selenium and production method thereof |
| CN102771294A (en) * | 2012-08-15 | 2012-11-14 | 苏州硒谷科技有限公司 | Fruit corn capable of quantitatively complementing selenium and production method thereof |
| CN103843562A (en) * | 2014-02-25 | 2014-06-11 | 安徽硒谷生物科技有限公司 | Selenium-rich corn flour and production method thereof |
| CN104272947A (en) * | 2014-09-25 | 2015-01-14 | 刘怀彬 | Green and organic planting method for selenium-rich corn for selenium-rich wine brewing |
| CN104380961A (en) * | 2014-10-30 | 2015-03-04 | 灵璧县林汇家禽育种有限责任公司 | Planting method for selenium-enriched maize |
| CN104969754A (en) * | 2015-06-30 | 2015-10-14 | 巨野县天胜科技兴农种植专业合作社 | Planter and method for planting selenium-enriched corns |
| CN106748509A (en) * | 2016-12-30 | 2017-05-31 | 四川俊成生态农业开发有限公司 | A kind of preparation method of Se-enriched bio-organic fertilizer |
| CN115067044A (en) * | 2017-07-28 | 2022-09-20 | 中国科学院西北高原生物研究所 | Fertilizing method and organic cultivation method for organic cultivation of gramineous forage grass in alpine pasturing area |
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2010
- 2010-12-31 CN CN2010106167128A patent/CN102150546A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102511273A (en) * | 2011-12-12 | 2012-06-27 | 苏州硒谷科技有限公司 | Wheat rich in organic selenium and production method thereof |
| CN102771294A (en) * | 2012-08-15 | 2012-11-14 | 苏州硒谷科技有限公司 | Fruit corn capable of quantitatively complementing selenium and production method thereof |
| CN103843562A (en) * | 2014-02-25 | 2014-06-11 | 安徽硒谷生物科技有限公司 | Selenium-rich corn flour and production method thereof |
| CN104272947A (en) * | 2014-09-25 | 2015-01-14 | 刘怀彬 | Green and organic planting method for selenium-rich corn for selenium-rich wine brewing |
| CN104380961A (en) * | 2014-10-30 | 2015-03-04 | 灵璧县林汇家禽育种有限责任公司 | Planting method for selenium-enriched maize |
| CN104969754A (en) * | 2015-06-30 | 2015-10-14 | 巨野县天胜科技兴农种植专业合作社 | Planter and method for planting selenium-enriched corns |
| CN106748509A (en) * | 2016-12-30 | 2017-05-31 | 四川俊成生态农业开发有限公司 | A kind of preparation method of Se-enriched bio-organic fertilizer |
| CN115067044A (en) * | 2017-07-28 | 2022-09-20 | 中国科学院西北高原生物研究所 | Fertilizing method and organic cultivation method for organic cultivation of gramineous forage grass in alpine pasturing area |
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