CN1800115A - Composite long-acting iron fertilizer, its preparation method and uses - Google Patents
Composite long-acting iron fertilizer, its preparation method and uses Download PDFInfo
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Abstract
The invention discloses a compound long-lasting iron fertilizer which comprises the following components and weight contents: 30-65 backup organic fertilizer, 25-60 backup acid aging and 8-30 backup micro element fertilizer; the organic fertilizer is the manure after enzyme treatment and animal and plant remain; the acid aging is sulfur and furfural sludge / lemon acid sludge; the micro element fertilizer is one or above tow of ferric sulfate, zinc sulfate or epsomite. It also discloses a method for making the compound long-lasting iron fertilizer and the purpose.
Description
Technical field
The present invention relates to a kind of composite long-acting iron fertilizer, Its Preparation Method And Use of fruit tree iron deficiency yellows of planting at pH＞7.0 calcareous soils, belong to the fertilizer field that is applicable to the farmland.
Background technology
Iron is one of essential micronutrient element of plant, is bearing indispensable effect in plant materials.Fruit tree iron deficiency yellows are malnutrition common on the calcareous soil, and occurrence scope is extensive in China, and regional crops such as southwest, northwest, North China generally fall ill.Calcareous soil pH7.0～8.5, calcium carbonate content 5～18%, organic content generally is lower than 1%, lacks available nitrogen and available phosphorus.It is reported that the orchard sickness rate is up to more than 20%～60% on China's calcareous soil.Plant iron deficiency chlorosis, photosynthesis are obstructed, the lighter's growth retardation, and output descends, and the product qualitative change is bad; The burnt tip of heavy then tree crown, even whole strain death have a strong impact on production of fruit trees.The chlorosis fruit tree is compared with strong tree of the same age, and output descends 19%～47%, and a little less than the tree vigo(u)r, resistance is poor, and is early dead, is the important factor that influences fruit quantity and quality.Crop to the iron deficiency sensitivity has berry fruit (strawberry, grape etc.), Citrus (red tangerine, Xia Cheng, brocade orange, navel orange), other fruit tree (apple, rake, pears, Lee, plum, peach, English walnut), ornamental crops (flower of Capa Jasmine, rose, African chrysanthemum etc.), farm crop (peanut, soybean, arabian cron, flax, Kidney bean etc.).For example, purple hills area, Sichuan is the important Agro-ecology district of China, and soil mainly is purple soil, and area reaches 160,000 hm
2More than, fruit tree iron deficiency yellowtop sickness rate is very high, and orchard, dragon's fountain mountain area peach yellows incidence reaches 15%～30%; The citrus generation yellow in county such as Nanchong, Xichong about 20%; Pengan County is even more serious, and every year is lost about 4,500,000 kg of citrus because of yellows in the whole county, even the garden is ruined because of effecting a radical cure to chop at a tree in the orchard that has.Sichuan Province causes low, the poor quality of yield of commercial crops such as peanut, walnut, citrus, soybean because of the soil too little iron, the more than one hundred million units of annual loss.
All iron content is very high in the soil, is generally 0.7%～4.2%, is only second to silicon and aluminium, but mainly is the form existence with remaining attitude (77%) and crystallization oxidation state (15%).That is the iron major part is present in the primary and secondary mineral in the soil, can be but seldom by effective iron that plant absorbed, especially in the higher calcareous soil of pH still less.Calcareous calcium contents decision soil pH in the soil, and soil pH is the important factor that influences iron validity, the every rising of pH value one unit, the reduction of the validity thousandfold of iron, in calcareous soil, the iron cellulose content is extremely significantly negative correlation, correlation coefficient r=-0.916 in soil pH value and the blade.Explanation thus, the plant iron chlorosis is caused by Ca in the calcareous soil, is summed up as " lime is induced chlorosis ".Most tests confirm that soil pH and organic huge to the influence of soil iron form transformation by the regulation and control soil physical and chemical property, improves edatope and can change the distribution of iron in each form iron, improves the validity of soil iron.
At present for the control of the iron chlorosis disease of plant, owing to be subjected to the influence of China's rural economy level and ability, still based on cheap inorganic iron fertilizer, inorganic iron fertilizer is again based on ferrous sulfate for the iron fertilizer on the market.But,, also not obvious to the result of treatment of plant iron deficiency yellows because ferrous sulfate easily forms the high price iron of insoluble in calcareous soil.Organic chelated attitude iron fertilizer is mainly made ferruginous nutritive medium, little fertilizer or other preparation and is sold.Organic chelated attitude iron fertilizer iron-holder height, good stability mostly is water-soluble again, compares with inorganic iron fertilizer, can prevent general soil reaction, improves the turn-over capacity of iron in plant, promotes the absorption of plant to iron, is iron fertilizer preferably at present.Organic iron mainly contains two kinds of EDTA-Fe and EDDHA-Fe, and they all exist with organic chelated attitude.EDTA-Fe is the organic chelated iron fertilizer that abroad puts into production the earliest, also is one of kind of large usage quantity, but under the calcareous condition, the EDTA-Fe instability, and dissolution rate is too fast, still can be fixed by alkaline earth and makes effect of short duration.The EDDHA-Fe chelated iron forms with quadrol base phenol acetate (EDDHA) chelating, keeps stable pure chemistry product between pH3.4～8.5.Using EDDHA-Fe chelating iron fertilizer under the calcareous condition has unusual effect to rescuing the crop iron chlorosis, but EDDHA-Fe chelating iron fertilizer belongs to fine chemical product, and price is higher.With the plantation of dragon's fountain post, Chengdu, Sichuan Province peach is example, the EDDHA-Fe chelating iron fertilizer of using of every peach is prevented and treated the every strain of cost of yellows about 5 yuan, the orchard worker prevents and treats being dropped in more than 200 yuan of yellows for annual every mu, and the cost of using EDDHA-Fe control iron deficiency yellows under the situation of about 1000 yuan of annual mu net return is bigger.
The spherical composite iron fertilizer of the utility model patent of patent No. CN97239983.6 is to make spherical nucleome after fertilizer and inorganic iron fertilizer are disliked the fermentation of (detesting) gas, parcel one deck clay mineral, and the outside is wrapped polymer organic membrane such as layer of polyethylene alcohol or resin again.Its principle mainly is the long-term effectiveness that keeps ferrous ion in the fertile ball by mixing with organism, realizes the long-term purpose that slowly discharges ferrous ion of spheroid surrounding soil by coating.Spherical composite iron fertilizer needs twice coating could realize that technology is numerous and diverse, and equipment is more, and the production investment is bigger.Use polymer substances such as polyvinyl alcohol or resin owing to produce spherical composite iron fertilizer simultaneously, therefore improved the cost of product greatly.
The validity of the soil organism, pH value and soil iron is closely related, is the MAIN SOILS factor of the effective iron level of control soil.Edatope is one of principal element of decision soil iron (containing fertilizer iron) occurrence patterns, conversion and biological effectiveness.So, by fertilizer use edaphic factor, with the biological effectiveness that improves soil iron be one feasible and have an approach of practice significance.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can improve the organic and inorganic composite long-acting iron fertilizer that soil iron attainment is divided functions of physical supply, this fertilizer can keep the validity of ferro element for a long time after applying calcareous soil, control iron deficiency yellows, simultaneously by of the influence of organic-inorganic compoiste long-acting iron fertilizer to surrounding soil, the nutrient that phosphorus etc. is fixed in the activating soil, reduce the loss of ammonium nitrogen, thereby strengthen the fruit tree growth gesture, improve fruit output and quality.
Another object of the present invention provides the preparation method of organic and inorganic composite long-acting iron fertilizer, and production technique is simple, and raw materials cost is lower.
A further object of the present invention provides the purposes of organic and inorganic composite long-acting iron fertilizer in the fruit tree iron deficiency yellows that control pH＞7.0 calcareous soils are planted.
In order to realize the object of the invention, technical scheme of the present invention is:
A kind of composite long-acting iron fertilizer, comprise following component and weight content: 30～65 parts of organic fertilizer, 25～60 parts of acid adjustment materials and 8～30 parts of trace element fertilizers, described organic fertilizer is the feces of livestock and poultry and the plant and animal residues of fermentative processing, described acid adjustment material is a sulphur and the mixing of furfural dregs or citric acid waste, and described trace element fertilizer is one or more the mixing in ferrous sulfate, zinc sulfate or the sal epsom.
Wherein, described composite long-acting iron fertilizer is preferably: comprise 40～55 parts of organic fertilizer, 30～40 parts of acid adjustment materials and 15～20 parts of trace element fertilizers.
Blending ratio in the described acid adjustment material between sulphur and the furfural dregs (perhaps citric acid waste) with 1: 1～1: 3 for well.
The blending ratio of ferrous sulfate, zinc sulfate and sal epsom is 1～2: 0～1 in the described trace element fertilizer: 0～1.
Composite long-acting iron fertilizer of the present invention can be done corresponding the adjustment according to the difference of various places parent soil material, pH value, organic matter and various nutrient elements, be preferably: 40～55 parts in organic fertilizer, 20～30 parts of furfural dregs or citric acid wastes, 10～20 parts in sulphur, 8～15 parts in ferrous sulfate, 0～6 part in zinc sulfate, 0～7 part in sal epsom.Be more preferably: 45～50 parts in organic fertilizer, 20～25 parts of furfural dregs/citric acid wastes, 15～20 parts in sulphur, 8～15 parts in ferrous sulfate, 3～6 parts in zinc sulfate, 3～7 parts in sal epsom.
Of the present invention part is weight part, such as the weight unit of using always according to this area gram commonly used, kilogram, ton etc.
Described organic materials adopts earlier feces of livestock and poultry and plant and animal residues is regulated humidity to 40～55% with plant straw powder, turns at 45～70 ℃ and leads fermentation 7～10 days, is adjusted to water content 20～30% with plant straw powder again.
Described plant straw powder can adopt straw powder on the market commonly used, described turn over to lead adopt stack turner commonly used in the organic fertilizer production to get final product.In feces of livestock and poultry and plant and animal residues fermenting process, its temperature can constantly change, and generally is controlled between 45～70 ℃, leads by turning over of stack turner and controls, and it is all bad to be below or above this scope ferment effect.Can raise gradually if fermentation time surpasses the pH value of 10 days materials, organic acid reduces in the fertilizer, influences the result of use of product.
Material is subacidity after fermentative processing, can be constantly after being manured into soil towards periphery soil discharge organic acid and reduce soil pH value, thereby reach the purpose that reduces calcareous soil pH value.The organic acid that aerobic fermentation produces can be realized chelating with the ferrous ion in the fertilizer, strengthens the validity of ferrous ion.Organic fertilizer can provide nutrient elements such as abundant organic matter and nitrogen, phosphorus, potassium for soil.Organic matter has very strong resiliency and to the ionic adsorptivity, can avoid local soil to use chemical fertilizer too much tree body root system to be damaged.
Described acid adjustment material is sulphur and furfural dregs, and furfural dregs is for producing the tankage of furfural, and is abundant in china natural resources, cheap.If there is citric acid production factory the locality, can replace furfural dregs by citric acid waste.After being manured into soil, the acid adjustment material, makes the lower pH value of surrounding soil long term maintenance, the iron that the activation surrounding soil is fixed, the long-term effectiveness of assurance iron ion with the reaction of the acid-base neutralisation of calcareous soil generation on every side.Nutrients such as while activating soil phosphorus element, the protection soil ammonium-state is not lost because of alkaline condition, promotes the growth of tree body stalwartness rapidly.
Described trace element fertilizer is ferrous sulfate, zinc sulfate or sal epsom.Wherein ferrous sulfate, zinc sulfate and the sal epsom ratio of adding in fertilizer is 1～2: 0～1: 0～1.Trace element mixes with organic materials be manured into soil after, a part can be absorbed rapidly by fruit tree, the yellow of rectification fruit tree iron deficiency, another part then temporarily is attracted to slowly release in the organic matter, the nutrient element supply of long term maintenance surrounding soil.
A kind of preparation technology of the composite long-acting iron fertilizer at calcareous soil fruit tree iron deficiency yellows, comprise the steps: earlier feces of livestock and poultry and plant and animal residues to be regulated humidity to 40～55% with straw powder, 45～70 ℃ turn over lead the fermentation 7～10 days, with plant straw powder material is adjusted to water content 20～30% again; Then acid adjustment material, trace element fertilizer and organic materials through fermentation are mixed in proportion equably.
Composite long-acting iron fertilizer of the present invention can directly be used, and also can use through after the granulation.Can certainly add other fertilizer such as wilkinite, humic acids, urea, ammonium sulfate, calcium superphosphate, phosphorus ammonium, vitriolate of tartar, Repone K, directly use after mixing or use through after the granulation.
The nutrient function of composite long-acting iron fertilizer of the present invention is by spreading manuer in holes or the mode of ditch spread realizes.According to tree body size and pH in soil, in 0.5～1.5 meter scope in addition of trunk was left in the tree crown projection, distribution was selected 8～10 radial ditch spreads of point or is spreaded manuer in holes according to branch.Improvement by to the local root system surrounding soil of plant reaches the purpose of improving the whole plant nutritional status, and ditch spread or spread manuer in holes and can reduce labour intensity in addition prolongs the action effective of fertilizer to plant.
Composite long-acting iron fertilizer of the present invention, can improve soil iron attainment and divide functions of physical supply, production technique is simple, and raw materials cost is lower, can keep the validity of ferro element after applying calcareous soil for a long time, control iron deficiency yellows, simultaneously by the organic-inorganic compoiste long-acting iron fertilizer to the influence of surrounding soil, the nutrient that phosphorus etc. is fixed in the activating soil reduces the loss of ammonium nitrogen, thereby strengthen the fruit tree growth gesture, improve fruit output and quality.
The purposes of composite long-acting iron fertilizer of the present invention in the fruit tree iron deficiency yellows that control pH＞7.0 calcareous soils are planted.The strong basicity soil of 7.5＜pH that other iron fertilizers are difficult to play a role＜9.0 has good rectifying effect especially.
Composite long-acting iron fertilizer of the present invention, compare with other fertilizer of correcting fruit tree iron deficiency yellows of using in the current production of fruit trees and to have the following advantages:
1, trace element fertilizers such as organic fertilizer, acid adjustment material and ferrous sulfate are as after a product ditch spread or spreading manuer in holes, form a stable acidic group aggressiveness, can guarantee the long-term effectiveness of ferro element, effectively correct the yellows that the calcareous soil fruit tree causes because of nutritional deficiency.The strong basicity soil of 7.5＜pH that other iron fertilizers are difficult to play a role＜9.0 has good rectifying effect especially.
2, this fertilizer can promote by the potential of hydrogen of regulating surrounding soil slow attitude nutrient around the fertilization area (as, the phosphorus that is fixed in the soil) conversion and release, the loss of the nitrogen manure that the ammonia volatilization of reduction calcareous soil causes promotes the to greatest extent utilization of fruit tree to soil nutrient.
3, production technique is simple, and production cost is low, uses conveniently, is easy to promote.
Embodiment
Following examples are used to illustrate the present invention, but are not used for limiting the scope of the invention.
Embodiment 1
The described composite long-acting iron fertilizer of present embodiment comprises 50 kilograms of organic fertilizer, 20 kilograms of furfural dregs, 15 kilograms of sulphur, 12 kilograms of ferrous sulfate and 3 kilograms of zinc sulfate fertilizer.
Described organic fertilizer is earlier feces of livestock and poultry and plant and animal residues to be regulated humidity to 45% with plant straw powder, turns over stack turner and leads fermentation 7 days, temperature is controlled between 45-70 ℃ gets final product, and with plant straw powder material is adjusted to water content 30% again; Then acid adjustment material, trace element fertilizer and the organic materials through fermenting are mixed in proportion equably.
SULPHUR POWDER, cross 1mm through the ferrous sulfate and the sulfuric acid zinc powder of oven dry sieve after mix and promptly get composite long-acting iron fertilizer with organic fertilizer equably according to the above ratio through fermentation.
The fertilizer of gained is directly used, and also can use through after the granulation.More can directly use or use after evenly with required batch mixes of fruit tree such as wilkinite, humic acids, urea, ammonium sulfate, calcium superphosphate, phosphorus ammonium, vitriolate of tartar or Repone K through after the granulation.
The fertilizer of gained can be by spreading manuer in holes or the mode of ditch spread realizes.According to tree body size and pH in soil, in 1.0 meters scopes in addition of trunk were left in the tree crown projection, distribution was selected 10 radial ditch spreads of point or is spreaded manuer in holes according to branch.Apply the validity that can keep ferro element behind the calcareous soil for a long time, rescue the iron deficiency yellows.
Embodiment 2
The described composite long-acting iron fertilizer of present embodiment comprises 55 kilograms of organic fertilizer, 25 kilograms of citric acid wastes, 20 kilograms of sulphur, 10 kilograms of ferrous sulfate and 5 kilograms of sal epsom fertilizer.
Described organic fertilizer is regulated humidity to 40% by feces of livestock and poultry and plant and animal residues with plant straw powder, turns over stack turner and leads fermentation 9 days, temperature is controlled between 45-70 ℃ gets final product, and with plant straw powder material is adjusted to water content 25% again.
SULPHUR POWDER, cross 1mm through the ferrous sulfate and the sal epsom powder of oven dry sieve after mix and promptly get composite long-acting iron fertilizer with organic fertilizer equably according to the above ratio through fermentation.
The fertilizer of gained is directly used, and also can use through after the granulation.More can directly use or use after evenly with required batch mixes of fruit tree such as wilkinite, humic acids, urea, ammonium sulfate, calcium superphosphate, phosphorus ammonium, vitriolate of tartar or Repone K through after the granulation.
The fertilizer of gained can be by spreading manuer in holes or the mode of ditch spread realizes.According to tree body size and pH in soil, in 1.5 meters scopes in addition of trunk were left in the tree crown projection, distribution was selected 10 radial ditch spreads of point or is spreaded manuer in holes according to branch.Apply the validity that can keep ferro element behind the calcareous soil for a long time, control iron deficiency yellows.
Embodiment 3
Preparation process is with embodiment 1, and different is composite long-acting iron fertilizer, comprises 30 kilograms of organic fertilizer, 30 kilograms of furfural dregs, 10 kilograms of sulphur, 8 kilograms of ferrous sulfate.
Described organic fertilizer is regulated humidity to 55% by feces of livestock and poultry and plant and animal residues with plant straw powder, turns over stack turner and leads fermentation 10 days, temperature is controlled between 45-70 ℃ gets final product, and with plant straw powder material is adjusted to water content 20% again.
Embodiment 4
Preparation process is with embodiment 1, and different is composite long-acting iron fertilizer, comprises 65 kilograms of organic fertilizer, 15 kilograms of furfural dregs, 10 kilograms of sulphur, 15 kilograms of ferrous sulfate and 7 kilograms of sal epsom fertilizer.
Embodiment 5
Preparation process is with embodiment 1, and different is composite long-acting iron fertilizer, comprises 40 kilograms of organic fertilizer, 45 kilograms of citric acid wastes, 15 kilograms of sulphur, 10 kilograms of ferrous sulfate, 6 kilograms of zinc sulfate and 5 kilograms of sal epsom fertilizer.
Embodiment 6
Preparation process is with embodiment 1, and different is composite long-acting iron fertilizer, comprises 60 kilograms of organic fertilizer, 20 kilograms of citric acid wastes, 20 kilograms of sulphur, 15 kilograms of ferrous sulfate, 8 kilograms of zinc sulfate and 7 kilograms of sal epsom fertilizer.
Embodiment 7
Preparation process is with embodiment 1, and different is composite long-acting iron fertilizer, comprises 45 kilograms of organic fertilizer, 15 kilograms of citric acid wastes, 15 kilograms of sulphur, 11 kilograms of ferrous sulfate, 6 kilograms of zinc sulfate and 3 kilograms of sal epsom fertilizer.
Experimental example 1
3-10 month researchist had carried out correlation test in Chengdu, Sichuan Province Longquanyi District peach in 2005.Material cooperation ratio sees Table 1.Select peach three strains of the age of tree, growing way, the essentially identical trouble too little iron of tree-like size yellows in same peach garden, at the beginning of 4 months, handle, one strain illustrates that according to Ye Lvling (EDDHA-Fe) consumption and method handle, one strain is handled for 2.3 kilograms with composite long-acting iron fertilizer of the present invention, and another strain is not for executing the control treatment that composite long-acting iron fertilizer and EDDHA-Fe etc. rescue peach iron deficiency yellows iron fertilizer.The laggard row index of fruit harvest is measured, and compares with using Ye Lvling (EDDHA-Fe), and peach output increases by 15%, and the peach soluble solid increases by 4.3%, the long increase by 30% of the total branch of current-year branch, and leaf chlorophyll SPAD value does not then have difference.Execute composite long-acting iron fertilizer and Ye Lvling (EDDHA-Fe) peach and do not show yellow leaf, the contrast peach then shows serious yellow.
Table 1. peach composite long-acting iron fertilizer material cooperates ratio
| Organic fertilizer | Furfural dregs | Sulphur | Ferrous sulfate | Sal epsom |
| 50％ | 20％ | 15％ | 12％ | 3％ |
Experimental example 2
Adopt experimental example 1 same method on Pengan County, Sichuan oranges and tangerines, to carry out correlation test, just the soil regime according to the locality cooperates ratio (seeing Table 2) to carry out suitable adjustment to the composite long-acting iron fertilizer material, oranges and tangerines results back index determining shows: with use Ye Lvling (EDDHA-Fe) and compare, orange yield increases by 11%, the oranges and tangerines soluble solid increases by 6.7%, the long increase by 18% of the total branch of current-year branch, leaf chlorophyll SPAD value does not then have difference substantially.Use composite long-acting iron fertilizer and Ye Lvling (EDDHA-Fe) oranges and tangerines and do not show yellow leaf, contrast oranges and tangerines blade then shows serious yellow.
Table 2. oranges and tangerines composite long-acting iron fertilizer material cooperates ratio
| Organic fertilizer | Furfural dregs | Sulphur | Ferrous sulfate | Sal epsom | Zinc sulfate |
| 36％ | 25％ | 25％ | 10％ | 2.3％ | 1.7％ |
Fertilization mode:
1) sets annual every strain 0.5-1.5 kilogram childhood, the annual every strain 1.5-3.0 kilogram (amounting to a mu consumption 60-100 kilogram) of bearing tree;
2) long 0.5 meter, wide 0.3 meter, dark 0.25 meter fertilising cave are dug in one meter in the peripheral projection line of tree crown, bury soil after spreading manuer in holes by every cave 0.2-0.4 kilogram;
3) used in 15-30 days before spring, fruit tree germinateed, used in 20-30 days before evergreen fruit trees are then spent spring.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described; Although with reference to the foregoing description the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement technical scheme of the present invention.And not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (9)
1, a kind of composite long-acting iron fertilizer, it is characterized in that, comprise following component and weight content: 30～65 parts of organic fertilizer, 25～60 parts of acid adjustment materials and 8～30 parts of trace element fertilizers, described organic fertilizer is through the feces of livestock and poultry of fermentative processing and plant and animal residues, described acid adjustment material is a sulphur and the mixing of furfural dregs or citric acid waste, and described trace element fertilizer is one or more the mixing in ferrous sulfate, zinc sulfate or the sal epsom.
2, composite long-acting iron fertilizer according to claim 1 is characterized in that, comprises following component and weight content: comprise 40～55 parts of organic fertilizer, 30～40 parts of acid adjustment materials and 15～20 parts of trace element fertilizers.
3, composite long-acting iron fertilizer according to claim 1 is characterized in that, the blending ratio in the described acid adjustment material between sulphur and the furfural dregs/citric acid waste was with 1: 1～1: 3.
4, composite long-acting iron fertilizer according to claim 1 is characterized in that, the blending ratio of ferrous sulfate, zinc sulfate and sal epsom is 1～2: 0～1 in the described trace element fertilizer: 0～1.
5, according to any described composite long-acting iron fertilizer among the claim 1-4, it is characterized in that, comprise following component and weight content: 40～55 parts in organic fertilizer, 20～30 parts of furfural dregs or citric acid wastes, 10～20 parts in sulphur, 8～15 parts in ferrous sulfate, 0～6 part in zinc sulfate, 0～7 part in sal epsom.
6, composite long-acting iron fertilizer according to claim 5 is characterized in that, comprises following component and weight content: 45～50 parts in organic fertilizer, 20～25 parts of furfural dregs/citric acid wastes, 15～20 parts in sulphur, 8～15 parts in ferrous sulfate, 3～6 parts in zinc sulfate, 3～7 parts in sal epsom.
7, according to claim 1,2,5 or 6 described composite long-acting iron fertilizers, it is characterized in that: described organic materials adopts earlier feces of livestock and poultry and plant and animal residues is regulated humidity to 40～55% with plant straw powder, 45～70 ℃ turn over lead the fermentation 7～10 days, be adjusted to water content 20～30% with plant straw powder again.
8, a kind of method for preparing the described composite long-acting iron fertilizer of claim 1, it is characterized in that, comprise the steps: earlier feces of livestock and poultry and plant and animal residues to be regulated humidity to 40～55% with straw powder, 45～70 ℃ turn over lead the fermentation 7～10 days, with plant straw powder material is adjusted to water content 20～30% again; Then with acid adjustment material, trace element fertilizer and through the organic materials of fermentation in proportion uniform mixing form.
9, the purposes of composite long-acting iron fertilizer according to claim 1 and 2 in the fruit tree iron deficiency yellows that control pH＞7.0 calcareous soils are planted.
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| CN1036381A (en) * | 1988-09-21 | 1989-10-18 | 黑龙江大学 | With the furfural dregs is the soil on nursery bed for culturing rice seedlings on dry land acidity regulator of base-material |
| CN1193461A (en) * | 1997-03-14 | 1998-09-23 | 尚兴甲 | Preparation against iron-deficiency yellow leaves and production thereof |
| CN1227863A (en) * | 1999-02-05 | 1999-09-08 | 许延增 | Agricultural soil ameliorant |
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| CN102010263B (en) * | 2010-09-29 | 2013-06-12 | 于永忠 | Special fertilizer for preventing and controlling forest iron-deficiency yellows and application method thereof |
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| CN103664281B (en) * | 2013-10-29 | 2015-05-20 | 界首市张何美种植专业合作社 | Special compound fertilizer for cinnamomum hupehanum |
| CN104072210B (en) * | 2014-06-24 | 2016-08-24 | 深圳市芭田生态工程股份有限公司 | Trace element fertilizer and its preparation method and application in a kind of multipurpose |
| CN104072210A (en) * | 2014-06-24 | 2014-10-01 | 深圳市芭田生态工程股份有限公司 | Multipurpose secondary/minor-element fertilizer, and preparation method and application thereof |
| CN104211523A (en) * | 2014-09-17 | 2014-12-17 | 四川华智生物工程有限公司 | Special biological organic fertilizer for iron-rich green vegetables as well as preparation method and application of fertilizer |
| CN105131968A (en) * | 2015-09-02 | 2015-12-09 | 山东农大肥业科技有限公司 | Alkaline soil conditioner and continuous steam-pressing device and method thereof |
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| CN110140468A (en) * | 2019-06-24 | 2019-08-20 | 旺盛生态环境股份有限公司 | A kind of modification method in salt-soda soil |
| CN110452052A (en) * | 2019-08-31 | 2019-11-15 | 新疆生产建设兵团第二师农业科学研究所 | A kind of control method of pear tree yellows |
| CN111727831A (en) * | 2020-05-11 | 2020-10-02 | 内蒙古农业大学 | Potato rhizosphere microdomain acid regulating agent |
| CN117263629A (en) * | 2023-09-25 | 2023-12-22 | 石家庄市长安育才建材有限公司 | Gao Jiangzhi raw material, preparation method and application |
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