CN110352679A - The chemical fertilizer kept soil from packing together applies material method - Google Patents

The chemical fertilizer kept soil from packing together applies material method Download PDF

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Publication number
CN110352679A
CN110352679A CN201910779066.8A CN201910779066A CN110352679A CN 110352679 A CN110352679 A CN 110352679A CN 201910779066 A CN201910779066 A CN 201910779066A CN 110352679 A CN110352679 A CN 110352679A
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fertilizer
soil
mus
material method
plastic film
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CN110352679B (en
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罗言云
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Sichuan University
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Sichuan University
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01CPLANTING; SOWING; FERTILISING
    • A01C21/00Methods of fertilising, sowing or planting
    • A01C21/005Following a specific plan, e.g. pattern
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05BPHOSPHATIC FERTILISERS
    • C05B1/00Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02Superphosphates
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05CNITROGENOUS FERTILISERS
    • C05C9/00Fertilisers containing urea or urea compounds
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00Fertilisers from human or animal excrements, e.g. manure
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05GMIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G3/00Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/80Soil conditioners

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Fertilizers (AREA)

Abstract

The invention discloses a kind of chemical fertilizer kept soil from packing together to apply material method, the chemical fertilizer applies material method the following steps are included: step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, organic fertilizer and microbial bacterial agent are uniformly applied in soil after evenly mixing by the weight ratio of 110:1~150:1, then turn over 10-30cm;Degradative plastic film is covered in soil surface after turning over, is uniformly applied after nitrogenous fertilizer, phosphate fertilizer and hypersober are mixed on degradative plastic film upper layer, 3~15cm of earthing after having applied;Step 2, spraying fertilizer: top dressing is carried out after crop incubation period mixes nitrogenous fertilizer, potash fertilizer, humic acid with microelement;Step 3 is turned over: being turned over after crop harvest to soil, is covered mulch in soil surface after turning over;The chemical fertilizer applies the highland barley plantation regional suitable for height above sea level 1500m or more of material method.Organic fertilizer microbial bacteria agent composition, which is isolated, using degradative plastic film to apply to significantly improve with nitrogenous fertilizer, phosphate fertilizer by the present invention keeps soil from packing together, prevents pH from increasing and being promoted the effect of soil fertility.

Description

The chemical fertilizer kept soil from packing together applies material method
Technical field
The present invention relates to chemical fertilizer to apply material method, and the chemical fertilizer specifically kept soil from packing together applies material method.
Background technique
High altitude localities refers to height above sea level in the area of 1500m or more, and high altitude localities is more crisp due to the ecosystem Weak, animals and plants rareness and slacking cause soil layer shallow, and since temperature is low, the soil freezing phase is long, poor aeration can For the soil depletion of plantation.The higher situation of the also generally existing soil pH in high altitude localities is with the several major areas in Tibet Example, Lhasa, Qamdo Prefecture, the Shannan Prefecture, day visitor then in the agricultural planting region of area and Ali area pH greater than 7.5 Soil accounts for 50% or more.General crop belongs to micro- alkali in neutral or weakly acidic pH soil-grown optimum, soil of the pH greater than 7.5 Property, soil nutrient availability is low, the benign development of unfavorable soil, soil texture destructible, the activity of unfavorable edaphon, The growth and development of unfavorable crop.
For existing high altitude localities staple crops based on Highland barley production, cultivated area is maximum, yield is most, is distributed most Extensively and the staple food crop be most fond of of people from high altitude localities.Highland barley growth requires sand to soil, glues, moderate pH value, Water capacity 60% or so, loosing soil, in 20cm or so, minerals nutrient is comprehensive for arable layer, and mass of soil is fine crushing, fills and ploughs side Just.But since high altitude localities soil fertility is poor, pH is higher, and High aititude agriculture district area weather is high and cold, height above sea level, temperature It is low, frost-free period is short, day and night temperature is big, little precipitation, and highland barley growing environment is poor, and is difficult heat necessary to being supplied to highland barley.Cause This applies quick chemical fertilizer often in highland barley planting process to improve yield, the fertilizer variety of application is more single, general The store-through problem big in applying quantity of chemical fertilizer, it is this apply material mode and will lead to soil pH value further increase, hydrochlorate deposition damage soil The crumb structure of earth causes soil compaction phenomenon extremely serious, causes the water conservation of soil, fertilizer conservation, gas permeability bad, soil Fertility reduces, and seriously affects highland barley yield.And long-term, a large amount of applications of chemical fertilizer, soil pH value further increase, and can make original This barren soil is by bigger damage, and soil will form salt-soda soil after alkalizing for a long time, it is any that salt-soda soil is not suitable for plantation Crop even results in soil erosion, destroys the ecosystem.
Summary of the invention
When it is an object of the invention to overcome prior art high altitude localities to plant highland barley, chronic administration chemical fertilizer leads to soil Hardened, pH is increased, the deficiency for reducing the fertility of soil, is provided a kind of chemical fertilizer kept soil from packing together and is applied material method, for High altitude localities highland barley plant feature, according to different chemical fertilizer apply material the period, provide it is corresponding keep soil from packing together, pH It is raised to apply material method, and enhance the fertility of soil.
The purpose of the present invention is achieved through the following technical solutions:
The chemical fertilizer kept soil from packing together applies material method, and the chemical fertilizer applies material method the following steps are included: the chemical fertilizer applies material Method the following steps are included:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, by organic fertilizer and microbial bacterial agent by 110:1~ The weight ratio of 150:1 uniformly applies in soil after evenly mixing, then turns over 10-30cm, and the dosage of organic fertilizer is 1.3- 2.5 tons/mu, microbial bacterial agent are that the mix bacterium agent of colloid bacillus and aspergillus terreus, wherein colloid bacillus and soil are bent The colony forming unit number ratio of mould is 2:3~5:3;Degradative plastic film is covered in soil surface after turning over, by nitrogenous fertilizer, phosphate fertilizer It uniformly applies with after hypersober mixing on degradative plastic film upper layer, earthing 3~15cm, nitrogen fertilizer amount 3- after having applied 12kg/ mus, Phosphorus Fertilizer Rates are 7-20kg/ mus, and nitrogenous fertilizer and hypersober weight ratio are 3:1~7:1;
Step 2, spraying fertilizer: carrying out top dressing after crop incubation period mixes nitrogenous fertilizer, potash fertilizer, humic acid with microelement, Nitrogen fertilizer amount is 3~7kg/ mus, and Potassium Fertilizer is 1~3kg/ mus, and Rate of Humic Acid is 0.1~1.3kg/ mus, and microelement is used Amount is 0.3~1.9kg/ mus;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth is more than or equal to 35cm, in soil after turning over Earth surface covers mulch.
The area height above sea level 1500m or more is high altitude localities, and high altitude localities soil layer is shallow, soil nutrient is low, plant growth Speed and setting percentage are all lower, long-term a large amount of application chemical fertilizer would generally be taken to supplement plant growth in order to improve crop yield The nutrient needed, but a large amount of chemical fertilizer only has part to be absorbed and utilized by this season crop, and remaining forms a large amount of hydrochlorates by soil fixing Deposition causes soil hardening, pH to increase, reduces the fertility of soil.Highland barley is the chief crop of high altitude localities, this technology Scheme plants feature for high altitude localities highland barley, provides a kind of chemical fertilizer kept soil from packing together and applies material method, is suitable in height Plant highland barley in Altitude Regions;Inventor has found that high altitude localities is shallow due to soil in the highland barley planting experiment of high altitude localities Barren, application chemical fertilizer easilys lead to soil hardening, pH is increased, and reduces the fertility of soil, to improve this case, protect Under the premise of card yield does not decline, it is necessary to pay attention to the maintenance to soil during fertilising, therefore in the technical scheme, Inventor, using organic fertilizer and microbial bacterial agent as bottom, conserves soil itself using them in the first step of fertilising, It increases soil fertility, improves soil physical chemistry structure, create suitable ecological environment, and reply for crop growth With solve the problems, such as to may result in soil hardening, pH is increased.However inventor in experiments it is found that, pass through application of organic fertilizers Soil is conserved with microbial bacterial agent, then this method of applied nitrogen phosphate fertilizer can keep soil from packing together to a certain extent, but also It is the case where variation there are the destruction of soil aggregate structure, permeability.In order to make method of administration can effectively prevent soil hardening, Solve the problems, such as pH increase, promoted soil fertility, inventor it is found through experiment that, during chemical fertilizer applies material, utilize degradative plastic film will Organic fertilizer microbial bacteria agent composition be isolated with nitrogenous fertilizer, phosphate fertilizer application can significantly improve keep soil from packing together, prevent pH increase, Promote the effect of soil fertility;Inventor's discovery, which mixes organic fertilizer microbial bacterial agent, is applied in degradative plastic film lower layer, nitrogenous fertilizer, Phosphate fertilizer mixing is applied in degradative plastic film upper layer, and this mode can make crop in early growth, part organic fertilizer microbial bacterial agent Mixture is initially formed benign microbial environment in the soil under degradative plastic film isolation, and generates and be largely conducive to improve soil Earth fertility, promote plant growth substance, part organic fertilizer microbial bacteria agent composition spread in the soil and with upper layer nitrogen Fertilizer, phosphate fertilizer promote seed to sprout by crop utilization jointly, sprout ensuing crop root system and penetrate degradative plastic film and go deep under lower layer's utilization Layer nutrient, degradative plastic film isolation can improve lower soil temperature, reduce soil water evaporation, play and retain and conserve soil moisture, to organic Fertile microbial bacteria agent composition creates an individual microorganism growing environment, this microorganism growing environment is by nitrogenous fertilizer, phosphorus Fertilizer influence is small, and development of microorganisms effect is good, while can also provide the fertilizer of plant growth needs;It also found in inventor's test, By means of which, the utilization rate of fertilizer and slow release effect are also obviously improved, and existing highland barley plantation fertilizing method is in two leaves one Heart stage, jointing stage and incubation period will respectively chase after disposable fertilizer, and fertilizer amount is big, will also result in soil hardening, soil pH raising, but benefit Material method is applied with the technical program, it is only necessary to carry out a top dressing in incubation period, fertilizer amount is less than prior art dosage, energy It effectively prevent soil hardening, prevent pH from increasing.
Organic fertilizer can increase the content of the organic matter in soil in the technical program step 1, provide nutrient for microorganism, The activity for improving microorganism, keeps the gas permeability of soil more preferable, and it is plant roots that microbial bacterial agent, which can decompose the hydrochlorate deposited in soil, It is utilizable nutrient;The fertilizer that highland barley grows major demands is nitrogenous fertilizer and phosphate fertilizer, and nitrogenous fertilizer is that alkalinity is easy to cause soil pH It increasing, the phosphate anion in phosphate fertilizer is easy to react with iron, aluminium or calcium and magnesium ion, and it generates microcosmic salt deposition and fixes in the soil, Cause soil hardening, for both the main fertilizer for being applied to highland barley, the technical program select be added microbial bacterial agent for Colloid bacillus and Aspergillus terreus, colloid bacillus can decompose chemical fertilizer in soil and deposit hydrochlorate, especially microcosmic salt, and soil is bent It is mould that nutrient generation acid is decomposed by absorption, it can reduce soil pH, solving applied nitrogen and phosphate fertilizer leads to soil pH raising and phosphorus Mineralization leads to the problem of soil hardening.Organic fertilizer and microorganism injected volume are inventors for a long time to high sea in the technical program It rises sheer from level ground what area's highland barley planting experiment obtained, organic fertilizer can be made to provide the enough nutrients for meeting microorganism life, the cooperation of the two amount It can greatly improve soil fertility, if amount of organic fertilizer is excessive, what crop root can be absorbed and utilized is the fertilizer around root system Material, extra fertilizer are easy to be lost waste, if amount of organic fertilizer is very few, the nutrient for being supplied to crop and microorganism is inadequate, micro- life Object poor activity, soil fertility decline;If the microbial bacteria dosage of use is excessive, microorganism, which is vied each other, leads to nutrient dificiency, Keep microbial activity poor, soil fertility decline, microbial bacteria dosage dosage lacks the unit plane then for whole soil excessively Long-pending active microbial content is very little, declines to the improvement result of soil fertility;The colloid bacillus of the technical program selection It is to be obtained by test with Aspergillus terreus proportion, if colony forming unit number ratio is to decompose chemical fertilizer deposition hydrochlorate effect less than 2:3 Fruit is poor, and soil granular amount is more, and if more than 5:3, soil pH regulating effect is poor, soil pH meta-alkali.Be conducive to by turning over The gas permeability for increasing soil, allows arable layer to become deeper, and since high altitude localities soil layer is shallow, turning over 10-30cm can fill Divide and crop surface soil layer is turned over into rake pine, so that organic fertilizer and microbial bacterial agent and soil is sufficiently mixed, if ploughed depth Less than 10cm, topsoil can be shallow, and the soil layer of suitable for crop growth is thin, and crop takes root not deep, easy lodging, and causes in active soil stratum Root system can not be open and flat deep, and soil is made to be easy to be lost, if ploughed depth is greater than 30cm, since highlands is more arid and more Wind can aggravate water loss, antecedent soil moisture is promoted to desertify.Since nitrogenous fertilizer and phosphate fertilizer are applied in degradative plastic film in the technical program Upper layer is easy to run off, and can adsorb nitrogenous fertilizer and phosphate fertilizer by mixing with hypersober, reduces fertilizer loss, improves fertilizer utilization Rate, and it is able to achieve the slow release effect to nitrogenous fertilizer, phosphate fertilizer using hypersober, so that fertilizer slow release is able to satisfy plant growth each The different of class need, and nitrogenous fertilizer, phosphate fertilizer and hypersober dosage meet the needs of plant growth and absorption;If nitrogenous fertilizer, Phosphorus Fertilizer Rates are excessive, and excess fertilizer, which is easy to run off, to be caused to waste, if nitrogenous fertilizer, Phosphorus Fertilizer Rates are too small, being unsatisfactory for plant growth is needed It wants;Adsorbent amount is excessive, and adsorbent and crop competition absorption nitrogenous fertilizer, phosphate fertilizer keep crop nutrition content insufficient, adsorbent amount mistake Small, a large amount of nitrogenous fertilizer, phosphate fertilizer are unadsorbed, are easy to cause loss;Earthing also can be reduced fertilizer loss after applying simultaneously, improve Utilization rate of fertilizer, thickness of earth-fill cover is excessively thin, and since high altitude localities is dry, wind-force is strong, soil layer easily desertifies loss, thickness of earth-fill cover mistake Thickness needs amount of soil big, and since high altitude localities soil layer is thin, the Tu Yuan that can be utilized is few, it is difficult to meet demand.The technical program By specifically applying material method, it can not only keep soil from packing together, prevent pH from increasing, promote soil fertility, moreover it is possible to which offer meets highland barley The fertility needed is grown, by the suction-operated of hypersober, and nitrogen and phosphorus fertilizer, organic fertilizer fertilizer stage by stage is utilized, mentions Fertilizer slow release is risen, keeps fertility more efficient, reduces the access times and dosage of fertilizer.
In the technical program step 2, by carrying out top dressing in incubation period, promotion highland barley increases tiller, increases fringe, the nitrogenous fertilizer of application, Potash fertilizer, humic acid and microelement are able to satisfy the nutrient of highland barley needs, adjust soil pH by the way that humic acid is added, promote soil Fertility promotes microbial activity, keeps soil from packing together.
In the technical program step 3, the soil of degradative plastic film lower layer has fertility than upper layer of soil under degradative plastic film isolation Higher, being turned over by row can be such that the various components of soil uniformly mix, and so that microorganism is effectively decomposed chemical fertilizer deposition hydrochlorate, prevent Only pH is increased, and promotes the whole fertility in soil;Mulch is covered after turning over can promote the soil moisture, reduce moisture evaporation, promote micro- Activity of the biology in soil, keeps soil from packing together, and adjusts soil pH, promotes soil fertility.
It should be further noted that the technical program is suitable for high altitude localities, i.e. height above sea level 1500m or more regional blueness Highland barley plantation;Degradative plastic film used in the technical program be Biodegradable mulch, inventor be typically chosen thickness 0.006~ The Biodegradable mulch of 0.008mm, the Biodegradable mulch of preferred thickness 0.006mm;Used in the technical program step 1 Adsorbent is clay minerals or the charcoals such as bentonite, montmorillonite, illite, kaolinite;The technical program step 1 uses Colloid bacillus and aspergillus terreus have conventional commercial commodity, and inventor generally uses the bacterium numbering of colloid bacillus For GIM1.16, the bacterium numbering of aspergillus terreus is ATCC32590;Nitrogenous fertilizer, phosphate fertilizer, potash fertilizer and microelement in the technical program The conventional means for being selected as the art, inventor is typically chosen urea fertilizer in the technical program, and phosphate fertilizer selected phosphorus Sour calcareous fertilisers material, potash fertilizer selective chlorination potassic fertilizer, microelement include iron, manganese, zinc, boron, copper and molybdenum, and inventor is typically chosen respectively The dosage of kind microelement is 0.13~0.5kg/ of iron mus, 0.02~0.5kg/ mus of manganese, 0.03~0.2kg/ mus of zinc, boron 0.05 ~0.3kg/ mus, 0.02~0.1kg/ mus of copper and 0.05~0.3kg/ mus of molybdenum;Humic acid is generally potassium humate or corruption in fertilizer Sour sodium is grown, it is potassium humate that inventor, which is typically chosen humic acid, in the technical program, and highland barley is happiness potassium crop, uses humic acid Potassium can improve the supply of potassium, and highland barley yield is greatly facilitated.
Further, the colony forming unit number ratio of colloid bacillus and aspergillus terreus is 4:3 in the step 1. When the colony forming unit number ratio of colloid bacillus and Aspergillus terreus is less than 4:3, microorganism decomposition chemical fertilizer deposits hydrochlorate effect Poor, soil granular amount is more, and if more than 4:3, microbe soil pH regulating effect is poor, soil pH meta-alkali;Use this technology Ratio in scheme can effectively decompose chemical fertilizer deposition hydrochlorate, prevent pH from increasing, promote soil fertility.
Further, nitrogenous fertilizer and hypersober weight ratio are 4:1, organic fertilizer and microbial bacterial agent weight in the step 1 Amount is than being 130:1, and the dosage of organic fertilizer is 1.8 tons/mu, and nitrogen fertilizer amount is 7kg/ mus, and Phosphorus Fertilizer Rates are 15kg/ mus.This technology It since nitrogenous fertilizer and phosphate fertilizer apply on degradative plastic film upper layer in scheme, is easy to run off, nitrogenous fertilizer can be adsorbed by mixing with hypersober And phosphate fertilizer, fertilizer loss is reduced, improves utilization rate of fertilizer, and be able to achieve the sustained release effect to nitrogenous fertilizer, phosphate fertilizer using hypersober Fruit makes fertilizer slow release be able to satisfy the different needs of each class of plant growth, and nitrogenous fertilizer, phosphate fertilizer and hypersober dosage meet The demand of plant growth and absorption;If nitrogenous fertilizer, Phosphorus Fertilizer Rates are excessive, excess fertilizer, which is easy to run off, to be caused to waste, if nitrogen Fertilizer, Phosphorus Fertilizer Rates are too small, are unsatisfactory for plant growth needs;Adsorbent amount is excessive, adsorbent and crop competition absorb nitrogenous fertilizer, Phosphate fertilizer keeps crop nutrition content insufficient, and adsorbent amount is too small, and a large amount of nitrogenous fertilizer, phosphate fertilizer are unadsorbed, is easy to cause loss;As it can be seen that making The utilization rate that fertilizer can be promoted with the technical program keeps fertility more efficient, promotes soil fertility.
Further, earthing 5cm after nitrogenous fertilizer, phosphate fertilizer and hypersober is applied in the step 1.Due to high altitude localities It is dry, wind-force is strong, thickness of earth-fill cover is less than 5cm, and soil layer easily desertifies losss, and thickness of earth-fill cover needs amount of soil big greater than 5cm, due to High altitude localities soil layer is thin, and the Tu Yuan that can be utilized is few, it is difficult to meet demand, therefore apply earthing 5cm and can be reduced fertilizer loss, Improve utilization rate of fertilizer.
Further, 0.5~3kg/ mus of work are uniformly applied on degradative plastic film upper layer after covering degradative plastic film in the step 1 Property adsorbent.The technical program applies hypersober on degradative plastic film upper layer and is mainly used for before applying nitrogenous fertilizer, phosphate fertilizer The fertilizer that absorption nitrogenous fertilizer, phosphate fertilizer are spread downwards, the speed that control nitrogenous fertilizer, phosphate fertilizer are spread downwards, when hypersober dosage is greater than 3kg, adsorbent and crop competition, which absorb nitrogenous fertilizer, phosphate fertilizer, keeps crop nutrition content insufficient, when hypersober dosage is less than 0.5kg, greatly It is unadsorbed to measure nitrogenous fertilizer, phosphate fertilizer, is easy to cause loss or penetrates degradative plastic film and penetrate into lower layer, premature influence lower soil ring Border;It should be further noted that the adsorbent that the technical program uses is bentonite, montmorillonite, illite, kaolinite etc. Clay mineral or charcoal.
Further, degradative plastic film upper layer has also applied 0.1-0.5kg/ mus of water-retaining agent, the water-retaining agent in the step 1 The hypersober applied with degradative plastic film upper layer is uniformly applied after evenly mixing on degradative plastic film upper layer.Degradative plastic film can be protected Lower soil is protected, reduces soil water evaporation, but upper layer of soil is easy to lose under high altitude localities arid, windy environment Moisture is removed, the technical program applies water-retaining agent on degradative plastic film upper layer, and water-retaining agent in the soil can be rapid by rainwater or watering pours water It absorbs and keeps, not permeable mistake, and then guarantee that rhizosphere range moisture content abundance, slow release are utilized for plant;The technical program utilizes Water-retaining agent locks moisture, reduces the evaporation of upper layer moisture, can increase the gas permeability of soil by lockking moisture, avoids soil hardening, And the hydrophilic radical of water-retaining agent can be fixed in the soil the absorptions such as anions and canons, polar group in fertilizer, slow release It is utilized for plant, fertilizer can be saved, promote soil fertility;Water-retaining agent is organic high molecular polymer, is greater than when applying water-retaining agent Water-retaining agent at high cost at 0.5kg/ mus and excessive can tie up the unity space of fertilizer, soil, be less than when applying water-retaining agent At 0.5kg/ mus, water lock effect is poor.
It should be further noted that the water-retaining agent that the technical program uses is Starch with Acrylic Acid copolymer, polyacrylic acid Salt polymer or starch-polyacrylamide copolymer.
Further, degradative plastic film surface is evenly distributed with several liquid-leadage holes in the step 1.The technical program is dropping Solution ground film surface opens up liquid-leadage hole, and the excessive fertilizer in upper layer can be made to penetrate into lower layer, avoid the waste of fertilizer, improve fertilizer utilization Rate reduces fertilizer application frequency, can keep soil from packing together, prevent pH from increasing, and promotes soil fertility.
Further, nitrogen fertilizer amount is 6kg/ mus in the step 2, and Potassium Fertilizer is 2.2kg/ mus, and Rate of Humic Acid is 0.7kg/ mus, microelement dosage is 1kg/ mus.Nitrogenous fertilizer, potash fertilizer, humic acid and the microelement of the technical program application can expire The nutrient that sufficient highland barley needs, the humic acid by the way that suitable amounts are added can promote soil fertility.It should be further noted that The humic acid that the technical program uses is potassium humate.
Further, ploughed depth is 40cm in the step 3.Ploughed depth is greater than 40cm, and it is big to turn over intensity, causes people The waste of power material resources, ploughed depth are less than 40cm, and soil stirs that depth is inadequate, and soil constituent cannot be sufficiently mixed, the technical program It uses ploughed depth for 40cm, mixes various components in soil uniformly, so that microorganism is effectively decomposed chemical fertilizer deposition hydrochlorate, prevent Only pH is increased, and promotes the whole fertility in soil.
In conclusion compared with the prior art, the invention has the following beneficial effects:
1, the present invention in the first step of fertilising using organic fertilizer and microbial bacterial agent as bottom, using them to soil itself It is conserved, is increase soil fertility, improve soil physical chemistry structure, create suitable ecological environment for crop growth, And it copes with and solves the problems, such as to may result in soil hardening, pH raising.For the main fertilizer of highland barley, the present invention is added Microbial bacterial agent be colloid bacillus and Aspergillus terreus, colloid bacillus can decompose in soil chemical fertilizer and deposit hydrochlorate, especially It is microcosmic salt, and Aspergillus terreus decomposes nutrient generation acid by absorbing, can reduce soil pH, and solving applied nitrogen and phosphate fertilizer causes The problem of soil pH increases and microcosmic salt deposition leads to soil hardening.
2, during chemical fertilizer applies material, the present invention using degradative plastic film by organic fertilizer microbial bacteria agent composition and nitrogenous fertilizer, Phosphate fertilizer isolation application, which can significantly improve, keeps soil from packing together, prevents pH from increasing, promoting the effect of soil fertility, inventor's discovery Organic fertilizer microbial bacterial agent is mixed and is applied in degradative plastic film lower layer, nitrogenous fertilizer, phosphate fertilizer mixing are applied in degradative plastic film upper layer, this Kind mode can make crop in early growth, and part organic fertilizer microbial bacteria agent composition is under degradative plastic film isolation in soil In be initially formed benign microbial environment, and generate the substances for being largely conducive to improve soil fertility, promote plant growth, portion Organic fertilizer microbial bacteria agent composition is divided to spread in the soil and promote seed by crop utilization jointly with upper layer nitrogenous fertilizer, phosphate fertilizer It sprouts, sprouts ensuing crop root system and penetrate degradative plastic film and go deep into lower layer using lower layer's nutrient, the isolation of degradative plastic film can improve down The layer soil moisture, reduces soil water evaporation, plays and retain and conserve soil moisture, create one to organic fertilizer microbial bacteria agent composition A individual microorganism growing environment, this microorganism growing environment are influenced small by nitrogenous fertilizer, phosphate fertilizer, and development of microorganisms effect is good, The fertilizer of plant growth needs can be also provided simultaneously;It also found in inventor's test, by means of which, the utilization rate of fertilizer It is also obviously improved with slow release effect, existing highland barley plantation fertilizing method will respectively be chased after in one heart stage of two leaves, jointing stage and incubation period Disposable fertilizer, fertilizer amount is big, will also result in soil hardening, soil pH increases, but applies material method using of the invention, it is only necessary to Incubation period carries out a top dressing, and fertilizer amount is less than prior art dosage, can effectively prevent soil hardening, prevents pH from increasing.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, below with reference to embodiment, the present invention is made Further to be described in detail, exemplary embodiment of the invention and its explanation for explaining only the invention, are not intended as to this The restriction of invention.
Embodiment 1:
The present invention provides a kind of chemical fertilizer kept soil from packing together and applies material method, comprising the following steps:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed to the weight of 130:1 Amount uniformly applies in soil than after evenly mixing, then turns over 25cm, and the dosage of organic fertilizer is 1.8 tons/mu, microbial bacteria Agent is colloid bacillus, bacterium numbering GIM1.16 and aspergillus terreus, the mix bacterium agent of bacterium numbering ATCC32590, wherein The colony forming unit number ratio of colloid bacillus and aspergillus terreus is 4:3;A layer thickness is covered in soil surface after turning over The Biodegradable mulch of 0.006mm is uniformly applied after mixing urea, superphosphate fertilizer and bentonite on biodegradable ground Film upper layer, earthing 5cm after having applied, amount of urea are 7kg/ mus, and superphosphate fertilizer dosage is 15kg/ mus, urea and activity Adsorbent weight ratio is 4:1;
Step 2, spraying fertilizer: carrying out top dressing after crop incubation period mixes urea, potassium chloride fertilizer with microelement, urine Plain dosage is 6kg/ mus, and potassium chloride fertilizer amount is 2.2kg/ mus, and microelement dosage is 1kg/ mus, iron in microelement 0.29kg/ mus, 0.26kg/ mus of manganese, 0.1kg/ mus of zinc, 0.15kg/ mus of boron, 0.06kg/ mus of copper and 0.14kg/ mus of molybdenum;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth 40cm, in soil surface after turning over Cover mulch.
Embodiment 2:
The present embodiment the difference from embodiment 1 is that: in step 1 after covering Biodegradable mulch, by 2kg/ mus activity Adsorbent uniformly applies after mixing with 0.3kg/ mus of water-retaining agent on Biodegradable mulch upper layer, then by urea, superphosphate fertilizer It is uniformly applied after being mixed with bentonite on upper layer, water-retaining agent is starch-polyacrylamide copolymer.
Embodiment 3:
The present embodiment the difference from example 2 is that: Biodegradable mulch surface is evenly distributed with several infiltrations in step 1 Fluid apertures;In step 2,0.7kg/ mus of potassium humate and urea, potassium chloride fertilizer and micro member are also added into crop incubation period Top dressing is carried out after element mixing.
Embodiment 4:
The present invention provides a kind of chemical fertilizer kept soil from packing together and applies material method, comprising the following steps:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed to the weight of 110:1 Amount uniformly applies in soil than after evenly mixing, then turns over 15cm, and the dosage of organic fertilizer is 1.3 tons/mu, microbial bacteria Agent is colloid bacillus, bacterium numbering GIM1.16 and aspergillus terreus, the mix bacterium agent of bacterium numbering ATCC32590, wherein The colony forming unit number ratio of colloid bacillus and aspergillus terreus is 1:1;A layer thickness is covered in soil surface after turning over The Biodegradable mulch of 0.007mm is uniformly applied after mixing urea, superphosphate fertilizer and bentonite on biodegradable ground Film upper layer, earthing 15cm after having applied, amount of urea are 8kg/ mus, and superphosphate fertilizer dosage is 20kg/ mus, urea and work Property adsorbent weight ratio be 7:1;
Step 2, spraying fertilizer: urea, potassium chloride fertilizer, potassium humate mixed with microelement in crop incubation period laggard Row top dressing, amount of urea are 7kg/ mus, and potassium chloride fertilizer amount is 2kg/ mus, and potassium humate dosage is 1.3kg/ mus, micro member Plain dosage is 1.5kg/ mus, iron 0.5kg/ mus in microelement, 0.43kg/ mus of manganese, 0.2kg/ mus of zinc, 0.14kg/ mus of boron, copper 0.03kg/ mus and molybdenum 0.2kg/ mus;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth 35cm, in soil surface after turning over Cover mulch.
Embodiment 5:
The present embodiment and the difference of embodiment 4 are: after covering Biodegradable mulch in step 1, applying urea, calcium phosphate Before bentonite, 0.3kg/ mus of water-retaining agent are uniformly applied on Biodegradable mulch upper layer, water-retaining agent is total for Starch with Acrylic Acid Polymers.
Embodiment 6:
The present invention provides a kind of chemical fertilizer kept soil from packing together and applies material method, comprising the following steps:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed to the weight of 140:1 Amount uniformly applies in soil than after evenly mixing, then turns over 30cm, and the dosage of organic fertilizer is 2 tons/mu, microbial bacterial agent For colloid bacillus, bacterium numbering GIM1.16 and aspergillus terreus, the mix bacterium agent of bacterium numbering ATCC32590, wherein glue The colony forming unit number ratio of matter bacillus and aspergillus terreus is 5:3;A layer thickness is covered in soil surface after turning over The Biodegradable mulch of 0.008mm uniformly applies after mixing 2.5kg/ mus of hypersobers with 0.5kg/ mus of water-retaining agent in life Object degradative plastic film upper layer, water-retaining agent starch-polyacrylamide copolymer, then urea, superphosphate fertilizer and bentonite are mixed It uniformly applies on upper layer afterwards, earthing 7cm after having applied, amount of urea is 10kg/ mus, and superphosphate fertilizer dosage is 13kg/ Mu, urea and hypersober weight ratio are 3:1;
Step 2, spraying fertilizer: urea, potassium chloride fertilizer, potassium humate mixed with microelement in crop incubation period laggard Row top dressing, amount of urea are 5kg/ mus, and potassium chloride fertilizer amount is 1kg/ mus, and potassium humate dosage is 0.8kg/ mus, micro member Plain dosage be 0.7kg/ mus, iron 0.22kg/ mus in microelement, 0.25kg/ mus of manganese, 0.03kg/ mus of zinc, 0.07kg/ mus of boron, 0.04kg/ mus and molybdenum 0.09kg/ mus of copper;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth 50cm, in soil surface after turning over Cover mulch.
Embodiment 7:
The present embodiment and the difference of embodiment 6 are: 1, Biodegradable mulch surface is uniformly distributed in the present embodiment step 1 There are several liquid-leadage holes;2, potassium humate used in 6 step 2 of embodiment is replaced with into sodium humate.
Embodiment 8:
The present invention provides a kind of chemical fertilizer kept soil from packing together and applies material method, comprising the following steps:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed to the weight of 150:1 Amount uniformly applies in soil than after evenly mixing, then turns over 10cm, and the dosage of organic fertilizer is 2.5 tons/mu, microbial bacteria Agent is colloid bacillus, bacterium numbering GIM1.16 and aspergillus terreus, the mix bacterium agent of bacterium numbering ATCC32590, wherein The colony forming unit number ratio of colloid bacillus and aspergillus terreus is 2:3;A layer thickness is covered in soil surface after turning over The Biodegradable mulch of 0.008mm, Biodegradable mulch surface are evenly distributed with several liquid-leadage holes, by urea, calcium superphosphate It uniformly applies after fertilizer and bentonite mixing on Biodegradable mulch upper layer, earthing 3cm, amount of urea 12kg/ after having applied Mu, superphosphate fertilizer dosage are 7kg/ mus, and urea and hypersober weight ratio are 5:1;
Step 2, spraying fertilizer: urea, potassium chloride fertilizer, potassium humate mixed with microelement in crop incubation period laggard Row top dressing, amount of urea are 3kg/ mus, and potassium chloride fertilizer amount is 3kg/ mus, and potassium humate dosage is 0.1kg/ mus, micro member Plain dosage be 0.3kg/ mus, iron 0.13kg/ mus in microelement, 0.02kg/ mus of manganese, 0.03kg/ mus of zinc, 0.05kg/ mus of boron, 0.02kg/ mus and molybdenum 0.05kg/ mus of copper;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth 55cm, in soil surface after turning over Cover mulch.
Embodiment 9:
The present invention provides a kind of chemical fertilizer kept soil from packing together and applies material method, comprising the following steps:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed to the weight of 120:1 Amount uniformly applies in soil than after evenly mixing, then turns over 20cm, and the dosage of organic fertilizer is 2.5 tons/mu, microbial bacteria Agent is colloid bacillus, bacterium numbering GIM1.16 and aspergillus terreus, the mix bacterium agent of bacterium numbering ATCC32590, wherein The colony forming unit number ratio of colloid bacillus and aspergillus terreus is 4:3;A layer thickness is covered in soil surface after turning over The Biodegradable mulch of 0.006mm uniformly applies after mixing 0.5kg/ mus of hypersobers with 0.4kg/ mus of water-retaining agent in life Object degradative plastic film upper layer, water-retaining agent are polyacrylate polymer, then will be after the mixing of urea, superphosphate fertilizer and bentonite Uniformly applying on upper layer, earthing 3cm after having applied, amount of urea is 12kg/ mus, and superphosphate fertilizer dosage is 16kg/ mus, Urea and hypersober weight ratio are 5:1;Biodegradable mulch surface is evenly distributed with several liquid-leadage holes;
Step 2, spraying fertilizer: urea, potassium chloride fertilizer, potassium humate mixed with microelement in crop incubation period laggard Row top dressing, amount of urea are 3kg/ mus, and potassium chloride fertilizer amount is 2kg/ mus, and potassium humate dosage is 0.6kg/ mus, micro member Plain dosage is 1.9kg/ mus, iron 0.5kg/ mus in microelement, 0.5kg/ mus of manganese, 0.2kg/ mus of zinc, 0.3kg/ mus of boron, copper 0.1kg/ mus and molybdenum 0.3kg/ mus;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth 40cm, in soil surface after turning over Cover mulch.
Embodiment 10:
The present invention provides a kind of chemical fertilizer kept soil from packing together and applies material method, comprising the following steps:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed to the weight of 145:1 Amount uniformly applies in soil than after evenly mixing, then turns over 27cm, and the dosage of organic fertilizer is 1.5 tons/mu, microbial bacteria Agent is colloid bacillus, bacterium numbering GIM1.16 and aspergillus terreus, the mix bacterium agent of bacterium numbering ATCC32590, wherein The colony forming unit number ratio of colloid bacillus and aspergillus terreus is 2:3;A layer thickness is covered in soil surface after turning over The Biodegradable mulch of 0.008mm, Biodegradable mulch surface are evenly distributed with several liquid-leadage holes, and 3kg/ mus of activity are inhaled Attached dose mixed with 0.1kg/ mus of water-retaining agent after uniformly apply on Biodegradable mulch upper layer, water-retaining agent is Starch with Acrylic Acid copolymerization Object, then uniformly apply after urea, superphosphate fertilizer and bentonite are mixed on upper layer, earthing 10cm after having applied, urea is used Amount is 3kg/ mus, and superphosphate fertilizer dosage is 7kg/ mus, and urea and hypersober weight ratio are 6:1;
Step 2, spraying fertilizer: urea, potassium chloride fertilizer, potassium humate mixed with microelement in crop incubation period laggard Row top dressing, amount of urea are 6kg/ mus, and potassium chloride fertilizer amount is 2.3kg/ mus, and potassium humate dosage is 1.1kg/ mus, micro Element dosage be 1.6kg/ mus, iron 0.45kg/ mus in microelement, 0.41kg/ mus of manganese, 0.15kg/ mus of zinc, 0.3kg/ mus of boron, 0.07kg/ mus and molybdenum 0.22kg/ mus of copper;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth 60cm, in soil surface after turning over Cover mulch.
Comparative test 1:
This control group the difference from embodiment 1 is that: soil surface does not cover Biodegradable mulch in step 1, by urea, The topsoil after turning over uniformly is applied after calcium phosphate and bentonite mixing.
Comparative test 2:
This control group the difference from example 2 is that: soil surface does not cover Biodegradable mulch in step 1, by urea, The topsoil after turning over uniformly is applied after calcium phosphate and bentonite mixing.
Comparative test 3:
This control group and the difference of embodiment 3 are: soil surface does not cover Biodegradable mulch in step 1, by urea, The topsoil after turning over uniformly is applied after calcium phosphate and bentonite mixing.
Comparative test 4:
This control group and the difference of embodiment 4 are: soil surface does not cover Biodegradable mulch in step 1, by urea, The topsoil after turning over uniformly is applied after calcium phosphate and bentonite mixing.
Comparative test 5:
This control group and the difference of embodiment 5 are: soil surface does not cover Biodegradable mulch in step 1, by urea, The topsoil after turning over uniformly is applied after calcium phosphate and bentonite mixing.
Comparative test 6:
This control group the difference from example 2 is that: hypersober dosage be 4kg/ mu, water-retaining agent dosage be 0.5kg/ Mu.
Comparative test 7:
This control group the difference from example 2 is that: hypersober dosage is 0.3kg/ mus, and water-retaining agent dosage is 0.07kg/ mus.
The planting experiment that the chemical fertilizer of the embodiment of the present invention 1~10 kept soil from packing together applies material method is as follows:
1, test site: Sichuan Province, Baiyu County, Tibetan Autonomous Prefecture of Garze
2, highland barley kind: spring highland barley is tested
3, test process: material test work is applied in high altitude localities progress highland barley plantation by the material method of applying of Examples 1 to 10 For test group 1~10, with comparative test 1~7 as a control group 1~7, it is local it is conventional apply material method and carry out plantation apply material conduct Control group 8 is gathered in immediately after highland barley is mature, respectively 30 days soil pHs after the detection harvesting same day and harvesting, organic Matter content, water content and the soil weight.
4, test result:
The soil root system on 1 highland barley yield of table and the harvesting same day
30 days soil root systems after the harvesting of 2 highland barley of table
Soil pH, organic matter, water content can react soil environment and fertility situation, during pH is between 6.5~7.5 Property soil, be suitble to major part plant growth, the higher expression soil of organic matter, water content is about fertile;The soil weight is for judging The index of soil tightness, in general, well-formed, its bulk density of loose soil are relatively low, the hardened soil of consolidation its Bulk density is higher, can directly react soil hardening situation.
As can be seen from Table 1 and Table 2, material method conventional is applied with by local after material method using applying for Examples 1 to 10 Carry out plantation and apply the control group 8 of material to compare, the yield of highland barley has an apparent increase, and soil pH, the content of organic matter, aqueous Amount and soil weight index are also superior to control group 8;It is compared by the numerical value of test group 1~5 and control group 1~5, it will be apparent that see Degradative plastic film is covered in step 1 out can obviously increase highland barley yield, and make soil pH, the content of organic matter, water content and soil Bulk density index is preferable, can effectively prevent soil hardening, pH raising, enhances the fertility of soil;Pass through numerical value pair in Tables 1 and 2 Than find Examples 1 to 10 applies material method after gathering in highland barley, by turning over whole soil, stays microorganism in the soil and fertilizer Material can further raise soil, and 30 days soil pHs tend to neutrality after harvesting, and soil moisture is lost less, the soil weight Increase becomes apparent from, and the content of organic matter is promoted, and soil fertility is significantly increased.
Water-retaining agent, which is spread, on degradative plastic film upper layer after covering degradative plastic film in step 1 advantageously reduces soil moisture loss, It can be seen that these embodiments harvesting same day soil from the test result for the embodiment 2,3,5,6,7,9 and 10 for having applied water-retaining agent Earth water content is apparently higher than other embodiments, and the water content of measurement in 30 days is also apparently higher than other embodiments after harvesting, it is seen that The effect of being significantly improved of Water Retaining Agent on Soil water content is added;It is spread after covering degradative plastic film in step 1 on degradative plastic film upper layer Activated adoption machine advantageously reduces nutrient loss, and can be seen that from the test result of Examples 1 and 2 joined hypersober Embodiment 2 its average product, soil organic matter content be apparently higher than embodiment 1, it is seen that hypersober is added to soil fertilizer The power effect of being significantly improved;From embodiment 2 and embodiment 3, the test data of embodiment 6 and 7 can be seen that in step 1 Degradative plastic film surface is evenly distributed with several liquid-leadage holes, and highland barley yield, soil root system are better than no hypersober or water conservation The test of agent;It can be seen that hypersober or water-retaining agent is added in step 1 after covering degradative plastic film and on degradative plastic film surface It is evenly distributed with several liquid-leadage holes and produces beneficial facilitation effect to highland barley yield, soil root system.
It should be further noted that inventor has found degrading after covering degradative plastic film in step 1 by repetition test The optimal amount ranges of hypersober and water-retaining agent that mulch upper layer applies are 0.5~3kg/ of hypersober mus, water conservation 0.1-0.5kg/ mus of agent, soil moisture content and the content of organic matter can be made to be maintained at higher level;Inventor is in above-mentioned numerical value model It encloses the outer soil moisture content for carrying out test acquisition and the content of organic matter is lower, this is because applying excessive hypersober And water-retaining agent, such as comparative example 6, can largely adsorb nutrient and moisture reduces nutrient and moisture in soil, accelerates water instead Divide evaporation and nutrient loss, cause its absorption and water retention property to be affected, apply very few hypersober and water-retaining agent, Inadequate to nutrient and water adsorption such as comparative example 7, absorption and water retention are unobvious.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects It is described in detail, it should be understood that being not used to limit this hair the foregoing is merely a specific embodiment of the invention Bright protection scope, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all It is included within protection scope of the present invention.

Claims (9)

1. the chemical fertilizer kept soil from packing together applies material method, which is characterized in that the chemical fertilizer apply material method the following steps are included:
Step 1, basal dressing: animal wastes being fermented to obtain organic fertilizer, and organic fertilizer and microbial bacterial agent are pressed 110:1~150:1 Weight ratio uniformly apply in soil after evenly mixing, then turn over 10-30cm, the dosage of organic fertilizer is 1.3-2.5 tons/ Mu, microbial bacterial agent are the mix bacterium agent of colloid bacillus and aspergillus terreus, wherein colloid bacillus and aspergillus terreus Colony forming unit number ratio is 2:3~5:3;Degradative plastic film is covered in soil surface after turning over, nitrogenous fertilizer, phosphate fertilizer and activity are inhaled It uniformly applies after attached dose of mixing on degradative plastic film upper layer, 3~15cm of earthing after having applied, nitrogen fertilizer amount is 3-12kg/ mus, phosphate fertilizer Dosage is 7-20kg/ mus, and nitrogenous fertilizer and hypersober weight ratio are 3:1~7:1;
Step 2, spraying fertilizer: top dressing, nitrogenous fertilizer are carried out after crop incubation period mixes nitrogenous fertilizer, potash fertilizer, humic acid with microelement Dosage is 3~7kg/ mus, and Potassium Fertilizer is 1~3kg/ mus, and Rate of Humic Acid is 0.1~1.3kg/ mus, and microelement dosage is 0.3~1.9kg/ mus;
Step 3 is turned over: being turned over after crop harvest to soil, ploughed depth is more than or equal to 35cm, in soil table after turning over Face covers mulch.
2. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that colloid in the step 1 The colony forming unit number ratio of bacillus and aspergillus terreus is 4:3.
3. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that nitrogenous fertilizer in the step 1 It is 4:1 with hypersober weight ratio, organic fertilizer and microbial bacterial agent weight ratio are 130:1, the dosage of organic fertilizer is 1.8 tons/ Mu, nitrogen fertilizer amount are 7kg/ mus, and Phosphorus Fertilizer Rates are 15kg/ mus.
4. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that applied in the step 1 Earthing 5cm after nitrogenous fertilizer, phosphate fertilizer and hypersober.
5. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that covered in the step 1 0.5~3kg/ mus of hypersobers are uniformly applied on degradative plastic film upper layer after degradative plastic film.
6. the chemical fertilizer kept soil from packing together as claimed in claim 5 applies material method, which is characterized in that degrade in the step 1 Mulch upper layer has also applied 0.1-0.5kg/ mus of water-retaining agent, and the water-retaining agent and the hypersober that degradative plastic film upper layer applies are equal It uniformly applies after even mixing on mulch upper layer.
7. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that degrade in the step 1 Ground film surface is evenly distributed with several liquid-leadage holes.
8. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that nitrogenous fertilizer in the step 2 Dosage is 6kg/ mus, and Potassium Fertilizer is 2.2kg/ mus, and Rate of Humic Acid is 0.7kg/ mus, and microelement dosage is 1kg/ mus.
9. the chemical fertilizer kept soil from packing together as described in claim 1 applies material method, which is characterized in that turned in the step 3 Depth is 40cm.
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