CN101293792B - Fertilizer special for organic, inorganic mix wheat - Google Patents

Fertilizer special for organic, inorganic mix wheat Download PDF

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Publication number
CN101293792B
CN101293792B CN2008100552181A CN200810055218A CN101293792B CN 101293792 B CN101293792 B CN 101293792B CN 2008100552181 A CN2008100552181 A CN 2008100552181A CN 200810055218 A CN200810055218 A CN 200810055218A CN 101293792 B CN101293792 B CN 101293792B
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fertilizer
organic
inorganic compound
soil
wheat
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CN101293792A (en
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雷震宇
亢秀芳
杨清
柴国庆
邵川岚
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LINFEN SHENGWANG FERTILIZER CO Ltd
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LINFEN SHENGWANG FERTILIZER CO Ltd
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Abstract

The invention relates to a compound fertilizer, particularly an inorganic and organic mixed formulated fertilizer special for wheat. The fertilizer solves the problems of the prior wheat fertilizer such as poor pertinence, unbalanced nutrient, and incapability for effectively improving soil structure and soil fertility. The fertilizer is prepared from urea, ammonium phosphate, humic acid, straw, and granulating agent by treating organic material and inorganic material, pulverizing, mixing according to formulation proportion, stirring, granulating, drying, sieving and packaging. Based on fertilizer requirement regularity of crops, the compound fertilizer has enough nutrient, reasonable nutrient proportion and strong pertinence for the crops, and high nutrient utilization rate, and has the effects of supplying large amount of elements required by growing development of the crops, supplementing middle element and trace element required by the crops and the soil, improving crop quality, and increasing soil fertilizer and water maintenance capability to realize utilization in combination cultivation so as to achieve a certain promotion value in terms of deficiency supplementation and balanced supplementation.

Description

The special-purpose survey side of organic and inorganic compound wheat is fertile
Technical field
The present invention relates to a kind of compound manure, be specially the special-purpose survey side of a kind of organic and inorganic compound wheat fertilizer.
Background technology
Wheat is one of important farm crop, its fertilising is many based on chemical fertilizer and the concentrated universal composite fertilizers of minority such as urea, bicarbonate of ammonia, diammonium phosphate, wherein chemical fertilizer belongs to mineral compound, it is quick-acting fertilizer, short run effect is better, and the soil but it hardens destroys soil aggregate, therefore can not life-time service, and cost is also higher.Though and suitable area and crop and the kind wide range of universal composite fertilizer, but for a certain crop, have one or both nutrient surpluses, and other other nutrient might be not enough, cause the waste of some nutrient, bring the excessive and unbalanced problem of nutrition supply of serious fertilising to Wheat Production, because these fertilizer are not considered the nutrient quantity that local soil nutrient supply situation and crop absorb and are determined ratio, both contaminated soil environment, limit the yield and quality of crop again, to crop, soil lacks specific aim, the fertilizer efficiency utilization ratio is low, and waste is big, and is also big to environmental hazard, and this composite fertilizer soil that also easily hardens, be difficult to farming, do not preserve moisture, effect is not good enough.
Mineral compound is only contained in above-mentioned chemical fertilizer and composite fertilizer, nutrient is single in order to solve, and problem such as the soil that easily hardens, fertilizer efficiency is lower, people have developed organic-inorganic compound mixed fertilizer, not only nutrient complete, can satisfy the required macroelement of crop growth, and can chessom, increase water conservation, the fertilizer-preserving ability of soil.But the defective of its existence is just respectively inorganic, organic fertilizer simply to be mixed, and belongs to single particle, monoculture branch, is unfavorable for operation, causes unevenness of application, nutrient inhomogeneous.
Summary of the invention
The present invention exists in order to solve the existing fertilizer that is used for wheat that specific aim is poor, nutrient is unbalanced, the problems such as structure, getting fat soil of can not effectively improving the soil, and the special-purpose side of surveying of a kind of organic and inorganic compound wheat fertilizer is provided.
The present invention adopts following technical scheme to realize: the special-purpose survey side of organic and inorganic compound wheat is fertile, is made urea 220-250 part by the raw material of following weight ratio, diammonium phosphate 180-210 part, Repone K 160-200 part, humic acid 250-300 part, maize straw 40-80 part, granulating agent 40-60 part.Described granulating agent is kaolin or wilkinite.Described humic acid is for now selling commodity.
The ratio of weight and number of nitrogen, phosphorus, potassium is 15: 9: 12 in the described survey side fertilizer, organic 〉=30%, and fertile physical behavior in the survey side that obtains and proportion, fertilizer efficiency etc. are for best with this understanding.
Prepare the fertile method in the special-purpose survey side of described organic and inorganic compound wheat, may further comprise the steps: (1) maize straw is handled: be crushed to the maize straw of choosing Powdered, urea soln with the 3-6% that is equivalent to the stalk dry mass, be sprayed on the stalk equably, the ammonification pond of packing into covers with plastic film then and got final product in 4-7 days; (2) humic acid is handled: at the order number is to add the ammoniacal liquor that is equivalent to its weight 5-7.5% in the 30-60 purpose humic acid, and the ammonification pond of packing into got final product with the plastic film covering then in 3-5 days; (3), can pulverize with chain type pulverizer and high speed powder mill respectively, generally below 1mm with urea, diammonium phosphate, Repone K separated pulverizing powdered; (4) stalk that above-mentioned steps is obtained according to the described proportioning of claim 1, humic acid, urea, diammonium phosphate and Repone K mixing and stirring; (5) compound that step (4) is obtained carries out granulation with granulating agent, can adopt granulating method to carry out granulation, gets organic and inorganic compound fertilizer granule; (6) organic and inorganic compound fertilizer granule is sent into dryer and dry, keeping the opening for feed temperature is 70-100 ℃, and the discharge port temperature is 40-70 ℃; (7) cooling, screening, promptly obtaining particle diameter is the special-purpose survey side of the organic and inorganic compound wheat fertilizer of 2-3mm.
The pH value of the above-mentioned survey side's fertilizer that obtains is 7.5-8, satisfies the wheat growth demand.
The resulting survey side of the present invention fertilizer is particularly useful for the winter wheat planted on the clay soil property, and every mu of consumption is the 40-50 kilogram.During concrete enforcement, the present invention fetches earth on the clay soil of determining plantation winter wheat earlier, carry out soil analysis, learn the feeder capability of soil, and then determine that according to the wheat regulation of fertilizer requirement ratio of weight and number and the organic content of nitrogen, phosphorus, potassium in the side's of surveying fertilizer carry out formulating of recipe, obtain the optimum formula of suitable wheat regulation of fertilizer requirement.
In order further to prove the fertilizer efficiency that survey side of the present invention is fertile, carried out following contrast especially, will use common composite fertilizer and survey side of the present invention fertilizer respectively with a slice winter wheat separated into two parts, concrete structure sees the following form:
Figure S2008100552181D00031
Compared with prior art, the present invention has the following advantages:
1, specific aim is stronger, is the new type health fertilizer that is exclusively used in wheat, has dissolved in the fixed nitrogen factor, the phosphorus decomposing factor, the potassium decomposing factor, from having changed the proterties of fertilizer in essence, is Green Product;
2, kenel uniqueness, easy handling, the fertilizer that adopts special process of the present invention to obtain is single particle, full nutrient, uniform particles is convenient to mechanized operation, removes and executes or ditch spread;
3, multielement combination, reasonable ratio, this fertilizer not only is rich in macroelement nitrogen, phosphorus, the potassium that crop growth can be essential, also contains calcium, magnesium, the sulphur of useful plant growth, grows essential trace copper, iron, zinc, boron, molybdenum, manganese, chlorine etc. but also be rich in crop;
4, improve the soil culture fertility
(1) improve Soil structure: the fertilizer in this product produces the ligand of carboxyl one class in decay process, combine with the polyvalent metal ion of soil clay particle surface or hydrogen-oxygen polymer surfaces, form coacervate, the density that adds fertilizer is littler than soil, after applying, can reduce the unit weight of soil, improve the aeration status of soil, reduce the resistance of planting of soil, tilth is improved;
(2) strengthen soil water-retaining, fertilizer-preserving ability, soil mineral particulate water regain is up to 50%-60%, and the water regain of soil ulmin is 400%-600%, and therefore, this fertilizer can make the water holding capacity of soil improve about 10 times; The hydrogen ion that can dissociate out again in the soil solution has very strong cation exchange capacity (CEC), can increase the nutrient preserving capability energy of soil;
(3) improve the heat situation of soil, this fertilizer water retention capacity is strong, and specific heat capacity is bigger, and thermal conductivity is little, and color is dark again, more easily heat absorption, good heat preservation performance;
(4) organic content of raising soil, getting fat soil, this incorporation of fertilizerin the soil, under action of microorganisms, decomposition and inversion becomes simple compound, pass through biochemical effect simultaneously, be combined into again new more complicated, the distinctive macromole polyacetylene compound of more stable soil, i.e. soil ulmin, it is an organic matter stable in the soil, can strengthen the fertility of soil;
5, improve the biological activity of soil, stimulate plant growth, the organism of this fertilizer is the main source of soil microorganisms picked-up energy and nutrient, help its activity, microorganism can produce multiple amino acids, humic acid in metabolism, dried meat amino acid and VITAMIN, also have plant hormone, and a spot of VITAMIN and growth hormone just can make plant growth accelerate, and also do not have chemohormonal residual;
6, the fertilizer efficiency emergency is helped mutually, the utilization ratio height, (the fixed nitrogen factor, phosphorus decomposing, the potassium decomposing factor are the characteristics of humic acid itself to the deep in process of production fixed nitrogen factor, phosphorus decomposing, the potassium decomposing factor of this fertilizer, unit have inhibition to nitrogen, phosphorus, potassium there is pungency), generate humate with various positively charged ions in the soil, and humic acid and humate form a kind of buffered soln, and acid, alkaloid substance are had shock absorption; The useful factor can make the fertilizer efficiency utilization ratio of self improve 30% under the effect of soil microorganisms.
In a word, the present invention is according to the regulation of fertilizer requirement of crop and the feeder capability of soil, follow that the principle of " what lacks what is mended, balance is replenished " develops out, nutrient is complete, the nutrients ratio proportioning is more reasonable, with strong points to crop, the plant recovery of nutrient height, fertilizer efficiency is good, also simplified simultaneously the fertilising formality, also be convenient to mechanized operation, it not only can supply with the required macroelement of crop growth, can also replenish the required middle amount of crop and soil, trace element, improve crop quality, increase guarantor's fertilizer of soil, water retention capacity makes the soil reach usefulness, support the bonded consistence, be Green Product, have certain popularization value and practical value.
Embodiment
Embodiment 1: every part is 1kg
The special-purpose survey side of organic and inorganic compound wheat is fertile, makes by the raw material of following weight ratio, and 220 parts in urea, 180 parts of diammonium phosphate, 160 parts in Repone K, 250 parts of humic acid, 40 parts of maize straws, 40 parts of granulating agents, described granulating agent are kaolin.Prepare the fertile method in the special-purpose survey side of described organic and inorganic compound wheat, may further comprise the steps: (1) stalk is handled: be crushed to the maize straw of choosing Powdered, with 3% the urea soln that is equivalent to the stalk dry mass, be sprayed on the stalk equably, the ammonification pond of packing into covers with plastic film then and got final product in 4 days; (2) humic acid is handled: at the order number is to add the ammoniacal liquor that is equivalent to its weight 5% in the 30 purpose humic acid, and the ammonification pond of packing into got final product with the plastic film covering then in 3 days; (3) with urea, diammonium phosphate, Repone K separated pulverizing powdered; (4) stalk that above-mentioned steps is obtained according to the described proportioning of claim 1, humic acid, urea, diammonium phosphate and Repone K mixing and stirring; (5) compound that step (4) is obtained carries out granulation with granulating agent, gets organic and inorganic compound fertilizer granule; (6) organic and inorganic compound fertilizer granule is sent into dryer and dry, keeping the opening for feed temperature is 70 ℃, and the discharge port temperature is 40 ℃; (7) cooling, screening, promptly obtaining particle diameter is the special-purpose survey side of the organic and inorganic compound wheat fertilizer of 2-3mm, pH value is 7.5-8.
Embodiment 2: every part is 1 ton
The special-purpose survey side of organic and inorganic compound wheat is fertile, is made 240 parts in urea, 200 parts of diammonium phosphate, 190 parts in Repone K, 270 parts of humic acid, 50 parts of maize straws, 50 parts of granulating agents by the raw material of following weight ratio.Described granulating agent is a wilkinite.Prepare the fertile method in the special-purpose survey side of described organic and inorganic compound wheat, may further comprise the steps: (1) stalk is handled: be crushed to the maize straw of choosing Powdered, with 6% the urea soln that is equivalent to the stalk dry mass, be sprayed on the stalk equably, the ammonification pond of packing into covers with plastic film then and got final product in 7 days; (2) humic acid is handled: at the order number is to add the ammoniacal liquor that is equivalent to its weight 7.5% in the 60 purpose humic acid, and the ammonification pond of packing into got final product with the plastic film covering then in 5 days; (3) with urea, diammonium phosphate, Repone K separated pulverizing powdered; (4) stalk that above-mentioned steps is obtained according to the described proportioning of claim 1, humic acid, urea, diammonium phosphate and Repone K mixing and stirring; (5) compound that step (4) is obtained carries out granulation with granulating agent, gets organic and inorganic compound fertilizer granule; (6) organic and inorganic compound fertilizer granule is sent into dryer and dry, keeping the opening for feed temperature is 100 ℃, and the discharge port temperature is 70 ℃; (7) cooling, screening, promptly obtaining particle diameter is the special-purpose survey side of the organic and inorganic compound wheat fertilizer of 2-3mm.The ratio of weight and number of nitrogen, phosphorus, potassium is 15: 9: 12 in the survey side's fertilizer that obtains, organic 〉=30%, and pH value is 7.5-8.
Embodiment 3: every part is 10kg
The special-purpose survey side of organic and inorganic compound wheat is fertile, makes by the raw material of following weight ratio, and 240 parts in urea, 200 parts of diammonium phosphate, 185 parts in Repone K, 275 parts of humic acid, 65 parts of maize straws, 55 parts of granulating agents, described granulating agent are kaolin.Prepare the fertile method in the special-purpose survey side of described organic and inorganic compound wheat, may further comprise the steps: (1) maize straw is handled: be crushed to the maize straw of choosing Powdered, with 5% the urea soln that is equivalent to the stalk dry mass, be sprayed on the stalk equably, the ammonification pond of packing into covers with plastic film then and got final product in 6 days; (2) humic acid is handled: at the order number is to add the ammoniacal liquor that is equivalent to its weight 6% in the 55 purpose humic acid, and the ammonification pond of packing into got final product with the plastic film covering then in 4 days; (3) with urea, diammonium phosphate, Repone K separated pulverizing powdered; (4) stalk that above-mentioned steps is obtained according to the described proportioning of claim 1, humic acid, urea, diammonium phosphate and Repone K mixing and stirring; (5) compound that step (4) is obtained carries out granulation with granulating agent, gets organic and inorganic compound fertilizer granule; (6) organic and inorganic compound fertilizer granule is sent into dryer and dry, keeping the opening for feed temperature is 95 ℃, and the discharge port temperature is 65 ℃; (7) cooling, screening, promptly obtaining particle diameter is the special-purpose survey side of the organic and inorganic compound wheat fertilizer of 2-3mm, pH value is 7.5-8.
Embodiment 4:
The special-purpose survey side of organic and inorganic compound wheat is fertile, is made 250 parts in urea, 210 parts of diammonium phosphate, 200 parts in Repone K, 300 parts of humic acid, 80 parts of maize straws, 60 parts of granulating agents by the raw material of following weight ratio.Described granulating agent is a kaolin.Prepare the fertile method in the special-purpose survey side of described organic and inorganic compound wheat, may further comprise the steps: (1) maize straw is handled: be crushed to the maize straw of choosing Powdered, urea soln with the 3-6% that is equivalent to the stalk dry mass, be sprayed on the stalk equably, the ammonification pond of packing into covers with plastic film then and got final product in 7 days; (2) humic acid is handled: at the order number is to add the ammoniacal liquor that is equivalent to its weight 7.5% in the 60 purpose humic acid, and the ammonification pond of packing into got final product with the plastic film covering then in 5 days; (3) with urea, diammonium phosphate, Repone K separated pulverizing powdered; (4) stalk that above-mentioned steps is obtained according to the described proportioning of claim 1, humic acid, urea, diammonium phosphate and Repone K mixing and stirring; (5) compound that step (4) is obtained carries out granulation with granulating agent, gets organic and inorganic compound fertilizer granule; (6) organic and inorganic compound fertilizer granule is sent into dryer and dry, keeping the opening for feed temperature is 100 ℃, and the discharge port temperature is 70 ℃; (7) cooling, screening, promptly obtaining particle diameter is the special-purpose survey side of the organic and inorganic compound wheat fertilizer of 2-3mm, pH value is 7.5-8.

Claims (4)

1. the special-purpose survey side of organic and inorganic compound wheat is fertile, it is characterized in that making by the raw material of following weight ratio,
Urea 220-250 part, diammonium phosphate 180-210 part, Repone K 160-200 part, humic acid 250-300 part, maize straw 40-80 part, granulating agent 40-60 part, the ratio of weight and number of nitrogen, phosphorus, potassium is 15: 9: 12 in the side's of survey fertilizer, organic 〉=30%.
2. the special-purpose survey side of organic and inorganic compound wheat according to claim 1 is fertile, it is characterized in that described granulating agent is kaolin or wilkinite.
3. prepare the fertile method in the special-purpose survey side of organic and inorganic compound wheat as claimed in claim 1 or 2, it is characterized in that may further comprise the steps:
(1) maize straw is handled: the maize straw of choosing is crushed to Powdered, the urea soln with the 3-6% that is equivalent to the stalk dry mass is sprayed on the stalk equably, and the ammonification pond of packing into covers with plastic film then and got final product in 4-7 days;
(2) humic acid is handled: at the order number is to add the ammoniacal liquor that is equivalent to its weight 5-7.5% in the 30-60 purpose humic acid, and the ammonification pond of packing into got final product with the plastic film covering then in 3-5 days;
(3) with urea, diammonium phosphate, Repone K separated pulverizing powdered;
(4) stalk that above-mentioned steps is obtained according to the described proportioning of claim 1, humic acid, urea, diammonium phosphate and Repone K mixing and stirring;
(5) compound that step (4) is obtained carries out granulation with granulating agent, gets organic and inorganic compound fertilizer granule;
(6) organic and inorganic compound fertilizer granule is sent into dryer and dry, keeping the opening for feed temperature is 70-100 ℃, and the discharge port temperature is 40-70 ℃;
(7) cooling, screening, promptly obtaining particle diameter is the special-purpose survey side of the organic and inorganic compound wheat fertilizer of 2-3mm.
4. the method for the special-purpose side of surveying of organic and inorganic compound wheat according to claim 3 fertilizer is characterized in that the pH value of survey side's fertilizer of obtaining is 7.5-8.
CN2008100552181A 2008-06-16 2008-06-16 Fertilizer special for organic, inorganic mix wheat Expired - Fee Related CN101293792B (en)

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CN102432396A (en) * 2011-10-17 2012-05-02 石恩友 Trace-element composite fertilizer
CN102491814B (en) * 2011-11-25 2013-03-27 史丹利化肥股份有限公司 High-concentration humic acid type chelated multi-trace element special fertilizer for wheat and production method thereof
CN102649651A (en) * 2012-03-28 2012-08-29 常熟市滨江农业科技有限公司 Fertilizer rich in organic potassium and preparation method thereof
CN103755412B (en) * 2013-10-29 2016-01-13 界首市郝雷种植合作社 For the Compound fertilizer for wheat of northern alkaline soil
CN103819279B (en) * 2014-03-20 2015-09-02 山西省农业科学院小麦研究所 Wheat special organic-biological material coated Controlled Release Fertilizer and production technique thereof
CN104072283A (en) * 2014-06-19 2014-10-01 陈啟文 Chemical fertilizer applied to wheat
CN105198537B (en) * 2015-10-25 2018-05-04 金乡蒜乡肥业化工有限公司 Multi-change speed tail dries formula mixed fertilizer and is granulated production technology and its production equipment special
CN105347983A (en) * 2015-12-23 2016-02-24 山东农业大学 Special super-large-granule humic acid fertilizer for fruit trees and preparation method of special super-large-granule humic acid fertilizer
CN109042163A (en) * 2018-08-20 2018-12-21 王敏 A kind of green high-yield high-efficiency cultivation implantation methods of winter wheat

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075798C (en) * 1995-05-02 2001-12-05 山东农业大学 Fertilizer made up of plant stalks
CN1557789A (en) * 2004-01-17 2004-12-29 北京中美倍德生物工程技术有限公司 Organic-inorganic compound fertilizer with active compost as base material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1075798C (en) * 1995-05-02 2001-12-05 山东农业大学 Fertilizer made up of plant stalks
CN1557789A (en) * 2004-01-17 2004-12-29 北京中美倍德生物工程技术有限公司 Organic-inorganic compound fertilizer with active compost as base material

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