CN105315064A

CN105315064A - Chelated multi-element composite particulate microelement fertilizer and preparation method thereof

Info

Publication number: CN105315064A
Application number: CN201410414792.7A
Authority: CN
Inventors: 许象玉; 许岩峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-08-21
Filing date: 2014-08-21
Publication date: 2016-02-10

Abstract

The invention relates to a chelated multi-element composite particulate microelement fertilizer comprising nutrients such as nitrogen, phosphorus, potassium, sulfur, calcium, magnesium, boron, manganese, zinc, copper, iron and molybdenum needed by plant growth, and a preparation method thereof. The technical scheme of the invention is that inert natural mineral powder is adopted as a stabilizer, such that a chelating agent (EDTA-2Na), various nutrients, a disintegrating agent and the like are agglomerated in fertilizer particles at a same time. When the particles meet water, the particles can be integrated fast, and the chelating effect is performed. With the process, the nutrients can be dissolved in water in forms of complex (chelate) and others, and can penetrate into soil and can be absorbed by plants. The micro-nutrients of the fertilizer are comprehensive, such that crop growth needs can be completely satisfied. With the fertilizer, crop yield and quality can be improved. The preparation process of the fertilizer can be roughly divided into the steps of binding agent preparation, raw material addition, disintegrating agent addition, soft body preparation, granulation, drying and the like. The method has the advantage that generally an environment with normal temperature and normal pressure is kept, such that the chemical property of the chelating agent is not substantially changed.

Description

A kind of micro-fertilizer of chelated multielement composite particles and manufacture method

The present invention is the micro-fertilizer of a kind of chelated multielement composite particles and its manufacture method.Its technical characterstic utilizes inertia natural mineral powder as stablizer and caking agent, nutritive element and the sequestrant such as nitrogen, phosphorus, potassium, Calcium Magnesium Sulphur, boron, manganese, zinc, copper, iron, molybdenum that are needed by crop growth, collapses powder and be gathered in manufactured fertiliser granulates simultaneously.When meeting water (wetting), this fertiliser granulates can comparatively fast collapse loose, and sequestering action carries out simultaneously, and thus this granulated fertilizer has the strong feature of the good activity of solubility property.This Fertilizer application is convenient, also can mix other broadcast application separately, also can be watered collapse loose after spray or water, crop can be made after fertilising to obtain nutrition more completely, and growing way is vigorous, so can significantly improve output and improve the quality of agricultural-food.

Technical field

Chemistry, Production of manure

Background technology

Owing to adopting advanced select index technology, the high-yield variety of nearest two, 30 years farm crop continues to bring out, and makes the output of farm crop increase several times to tens times in a short time.For paddy rice, general more than 200 kilograms of past per mu yield, can reach five, 600 kilograms even higher now.We know crop growth, and required nutritive element has kind more than ten, wherein has several amount because needing to be called as trace element less.These nutritive elements mainly from the soil of plantation, when crop yield increases, certainly will be drawn more multi-nutrient element, can not meet the quick growth of this demand by soil under normal circumstances from soil.For making farm crop keep good quality and high output, using trace element fertilizer (micro-fertilizer) is correct direction.

" fertilizer inspection licenses " that The Ministry of Agriculture of the People's Republic of China, MOA issues (fertile No. 056, the accurate word of agriculture) chelate multicomponent mixed microfertilizer is powder-type compound trace element fertilizer sequestrant and part Non-metallic components and metal cation component packed respectively.In use will by two class pulvis mixing, mix thoroughly, be used for after converting a large amount of clear water spraying, Gen Shi or water (punching) filling.This fertilizer, to raising Crop yield and quality successful, is welcome by vast farmers very much.In practice, the field crops such as grain and oil use very few, tracing it to its cause is that this formulation is unsuitable for shedding, and uses inconvenience.Some peasant wants to follow the line of least resistance again with this fertilizer, and admix dry ground face again after simply two kinds of pulvis being mixed thoroughly and directly shed, effect is also fine.It is reported, producer once wanted to produce granule product, abandoned because technical barrier cannot solve afterwards.The invention solves Related Technical Issues, the granule product of this kind of micro-fertilizer can be produced.

Summary of the invention

1. through repetition test, the present invention chooses the chemically inert attapulgite of tool, and the natural mineral powder of sodium bentonite makees the stablizer of sequestrant disodium ethylene diamine tetraacetate, also plays binding agent when this is combined in granulation;

2. need according to different soils Different Crop the micro-fertilizer preparing corresponding nutritive ingredient, wherein active constituent content is higher, if single element, its content can reach the 15%-20% of total mass;

3. in fertiliser granulates containing collapsing powder diatomite powder, dry micro-fertile particle is met water (wet) and is understood and collapse loose very soon, and carry out sequestering action, effect of fertilizer is close with powder-type simultaneously.

Embodiment

The micro-fertile base furnish table of chelated multielement composite particles of the present invention:

This basic components can need to make adjustment according to different areas Different Crop, produces the micro-fertilizer of particle be suitable for.General production process is as follows.

1. micro-fertile bulk composition preparation

Zinc sulfate, copper sulfate, manganous sulfate, magnesium sulfate, ferrous sulfate, potassium sulfate, borax, urea, monoammonium phosphate, Sodium orthomolybdate and calcium superphosphate are mixed, pulverizes, stir;

2. binding agent (stablizer) makes

In industrial corn starch, add proper amount of clear water and stir into a paste, then sequestrant (EDTA-2Na), attapulgite powder are added in it, then stir, being still pasty state;

3. software processed

The micro-fertile bulk composition prepared in 1 is joined in the paste of 2, by diatomite powder, sodium bentonite powder (collapsing powder) mixing, is stirred into software;

4. granulate

Software calendering is cut into short cylindrical or rhombus blocky-shaped particle, or enters spherolite machine and make spherolite;

5. with after drying machine drying finished product.

The advantage that the present invention has compared with existing similar techniques

(1) compared with its powder-type product, the advantage of following three aspects is had:

A. packaging is simple, convenient transport;

B. can mix with N P and K granular fertilizer shed or be used alone all very convenient;

C. can adjust micro-fertilizer formula at any time according to Different Crop, produce various special fertilizer.

(2) the micro-fertilizer of existing Chelating state multiple (mix) conjunction particle compares and on market, and the present invention has one's own knack in the use of sequestrant.

On market, generally in two steps, to the micro-fertile manufacturing processed of existing Chelating state particle the first step mixed with other raw materials by sequestrant (EDTA-2Na) etc., pulverizes, be then sprinkled in water, under normal temperature and pressure, constantly stir ground stoichiometric number hour.Then filter, dry, make pulvis.Second step then can divide two classes: a class is that this pulvis and the direct adding additives of other auxiliary materials are made particle; Another kind of be using this pulvis as additive, add in other fertilizer (as fertilizer) and make particle.In these two kinds of micro-fertilizer of particle, effective nutrient composition content is lower, about quite the 50%-10% of the micro-fertilizer of particle of the present invention.

Method of the present invention, be utilize stablizer, binding agent, collapse powder by all former (auxiliary) material in normal temperature and pressure environment oligomerisation in fertiliser granulates, only have when fertiliser granulates chance water (wetting) collapses loose, sequestering action just occurs rapidly, thereupon nutritive element with complex compound (inner complex) or other form soluble in water, infiltrate soil, and be applicable to the absorption of farm crop root system.Facts have proved, because this fertilizer is comprehensive containing micronutrient element, can meet crop growth needs completely, maintain the good quality and high output of various farm crop, effect is fine.

Claims

1. make material and the process of binding agent.

2. the basic components (containing raw material, auxiliary material title and proportioning number) of fertilizer of the present invention.

3. the making step of granulated fertilizer of the present invention and process.