CN104945095A - Controlled release fertilizer synergist for improving absorbing ability of corn and preparation method thereof - Google Patents

Abstract

The invention discloses a controlled release fertilizer synergist for improving absorbing ability of corn. The synergist is prepared from the following raw materials in parts by weight: 16-19 parts of monopotassium phosphate, 3-4 parts of magnesium sulfate, 1-2 parts of zinc sulfate powder, 18-20 parts of tealeaf residues, 17-22 parts of candy residues, 14-16 parts of boron humate, 5-6 parts of gelatin, 2-4 parts of controlled release microbial layer, 4-5 parts of controlled release microelement chelation layer, 6-9 parts of controlled release microcrystalline ground phosphate rock coating layer and a moderate amount of water. After the fertilizer synergist for corn provided by the invention is applied, the generation of beneficial microorganisms in soil can be facilitated, rich metabolite active materials are generated, rootage is facilitated significantly, and the absorbing ability of a corn root system is strengthened; the utilization efficiency of corn for nitrogen, phosphorus and potassium in soil and fertilizers is comprehensively improved through the synergistic effect of large amounts of microelements, biological agents, and the like; the yield capacity of corn is improved; economic benefits are increased.

Description

A kind of slow release fertilizer synergistic agent improving Maize Absorption ability and preparation method thereof

Technical field

The present invention relates to a kind of fertilizer synergist technical field, particularly a kind of slow release fertilizer synergistic agent improving Maize Absorption ability and preparation method thereof.

Background technology

Corn is a kind of important cash crop of China, and the output of the input of fertilizer to corn serves vital effect, but in the actual planting process of corn, long-term existence the problem of apply fertilizer single and excessive fertilization, the average utilization of fertilizer is very low, and its major cause is the quick-acting of fertilizer and volatile fugitive volatile.The measure that correspondence is taked is then use release-controlled coated fertilizer to improve the utilization ratio of nutrient, but individual layer bag film strength is low, and slowly-releasing nutrients ratio is fixed, and without specific aim, does not meet the development that the demand etc. of crop different times to nutrient constrains self.

Current inventor provides the fertilizer synergist that a kind of corn planting uses for this reason, coated by different three layers of slow release layer, the corresponding seedling stage of corn growth, vegetative period and three periods of ripening stage, collocation common fertilizer uses the regulation of fertilizer requirement that fully can meet corn, not only improve the utilising efficiency of fertilizer, reach fertilizer and need fertile balance, improveing the physico-chemical property of planting soil, for the stable high yield of corn provides sound assurance simultaneously.

Summary of the invention

The present invention compensate for the deficiencies in the prior art, provides a kind of slow release fertilizer synergistic agent improving Maize Absorption ability and preparation method thereof.

Technical scheme of the present invention is as follows:

Fertilizer of the present invention is made up of the raw material of following weight part: potassium primary phosphate 16-19, magnesium sulfate 3-4, zinc sulphate powder 1-2, tealeaf residue 18-20, sugared slag 17-22, humic acids boron 14-16, gelatin 5-6, slowly-releasing microbial layer 2-4, slowly releasing trace element chelating layer 4-5, slowly-releasing micritization ground phosphate rock coating layer 6-9, water are appropriate;

Described slowly-releasing microbial layer is made up of the raw material of following weight part: EM microbiobacterial agent 5-7, diatomite 45-55, syrup 120-140; Its preparation method adds in syrup by EM complex micro organism fungicide, stir microorganism suspension is for subsequent use, diatomite sulphuric acid soln is soaked 60 minutes after washings to neutral, oven dry toasts 2-3 hour under being placed on 400-500 DEG C of environment, taking-up is worn into fine powder after being cooled to room temperature and is joined in microorganism suspension, stir 20-30 minute, leach fine particle, at 30-40 DEG C, use gas blower air-dry.

Described slowly releasing trace element chelating layer is made up of the raw material of following weight part: attapulgite 24-26, discarded animal skin 16-18, ferrous sulfate 4-7, zinc sulfate 3-5; Its preparation method to calcine 2 hours at attapulgite is placed in 600-800 DEG C and to wear into fine powder for subsequent use, discarded animal skin is joined in 6-8mol/L hydrochloric acid and is hydrolyzed 18-24 hour, adding lime slurry neutralization again to PH7 filters, and adds ferrous sulfate, be heated to 40-60 DEG C in filtrate, chelating 1-2 hour, add zinc sulfate again, chelating 1.5-3 hour at 50-80 DEG C, attapulgite fine powder is joined in gained chelating liquid, drying is also pulverized, and obtains composite chelate powder.

Described slowly-releasing micritization ground phosphate rock coating layer is made up of the raw material of following weight part: ground phosphate rock 28-32, cow glue 8-10, water are appropriate; Its preparation method is adopted by ground phosphate rock vibration mill micronization to obtain micritization ground phosphate rock, then cow glue and micritization ground phosphate rock jointly to be dropped into etc. in quality water, soaks after 8-10 hour and mixed system is heated to 70-80 DEG C, stir.

The concrete steps of the preparation of described fertilizer synergist are as follows:

(1) tealeaf residue, sugared slag, humic acids boron mixed and are placed in compost pond, adding a small amount of water secondary fermentation 18-20 days, after gained tunning is dried pulverizing, granulation is for subsequent use;

(2) heating of slowly-releasing micritization ground phosphate rock coating layer is dissolved rear even application in step one gained particle exterior surface, form the internal layer of synergistic agent;

(3) by levigate after potassium primary phosphate and gelatin mixing, add after a small amount of water with step 2 gained particle mix and blend, drop in whizzer centrifugal 20 minutes with 80-100 rev/min again, slowly releasing trace element chelating layer is added again in whizzer, with 200 revs/min of centrifugal 10-15 minute, to form the middle level of synergistic agent, taking-up particle post-drying is for subsequent use;

(4) by magnesium sulfate and zinc sulphate powder levigate after add a small amount of water even application in step 3 gained particle exterior surface, then slowly-releasing microbial layer and remaining component are mixed and add the spraying of a small amount of water and be wrapped in outside particle, form the skin of synergistic agent;

(5) air-dry with gas blower at step 4 gained particle being placed in 45-55 DEG C, weighing and bagging is placed on dry place and preserves.

The using method of synergistic agent of the present invention is be manured into soil after mixing according to the ratio of 8%-10% and common fertilizer.

Beneficial effect of the present invention:

Its adsorptive power to microorganism can be increased to diatomaceous modification in slowly-releasing microbial layer, stable in properties, extends working time simultaneously, and to soil and microorganism toxicological harmless effect, beneficial microorganism activity can improve joins nutrient availability in fertilise, increases the utilization ratio of fertilizer.

The stability of the high viscosity performance guarantee synergistic agent particle of cow glue by adding in slowly-releasing micritization ground phosphate rock coating layer, simultaneously when after the outer composition of layer release of synergistic agent, internal layer is met water and can progressively be decomposed, and improve sustained release performance, and the interpolation of micritization ground phosphate rock can to the NH of internal layer ₄ ⁺-N plays good slow releasing function, for the heavy demand of corn ripening stage to nutrient provides support.

Corn fertilizer synergist of the present invention can promote beneficial microorganism breeding in soil after using, produce abundant metabolite activity material, powerful growth-promoting root, strengthen maize root system receptivity, and improve the utilising efficiency of corn to soil and Nitrogen, Phosphorus potassium by the synergy of Macro and microelements, bacteria agent etc. comprehensively, improve the production capacity of corn, increase economic benefit.

Specific embodiments

Below in conjunction with following embodiment, the present invention is described in further detail:

The raw material taking following weight (kg) is made: potassium primary phosphate 18, magnesium sulfate 3, zinc sulphate powder 1, tealeaf residue 20, sugared slag 20, humic acids boron 15, gelatin 5, slowly-releasing microbial layer 3, slowly releasing trace element chelating layer 4, slowly-releasing micritization ground phosphate rock coating layer 7, water are appropriate;

Described slowly-releasing microbial layer is made up of the raw material of following weight part: EM microbiobacterial agent 6, diatomite 50, syrup 130; Its preparation method adds in syrup by EM complex micro organism fungicide, stir microorganism suspension is for subsequent use, diatomite sulphuric acid soln is soaked 60 minutes after washings to neutral, oven dry is toasted 3 hours under being placed on 450 DEG C of environment, taking-up is worn into fine powder after being cooled to room temperature and is joined in microorganism suspension, stir 30 minutes, leach fine particle, at 35 DEG C, use gas blower air-dry.

Described slowly releasing trace element chelating layer is made up of the raw material of following weight part: attapulgite 25, discarded animal skin 17, ferrous sulfate 6, zinc sulfate 4; Its preparation method to calcine 2 hours at attapulgite is placed in 700 DEG C and to wear into fine powder for subsequent use, discarded animal skin is joined in 7mol/L hydrochloric acid and be hydrolyzed 20 hours, adding lime slurry neutralization again to PH7 filters, and adds ferrous sulfate, be heated to 50 DEG C in filtrate, chelating 2 hours, add zinc sulfate again, chelating 2.5 hours at 70 DEG C, attapulgite fine powder is joined in gained chelating liquid, drying is also pulverized, and obtains composite chelate powder.

Described slowly-releasing micritization ground phosphate rock coating layer is made up of the raw material of following weight part: ground phosphate rock 30, cow glue 9, water are appropriate; Its preparation method is adopted by ground phosphate rock vibration mill micronization to obtain micritization ground phosphate rock, then cow glue and micritization ground phosphate rock jointly to be dropped into etc. in quality water, soaks after 10 hours and mixed system is heated to 80 DEG C, stir.

The concrete steps of the preparation of described fertilizer synergist are as follows:

(1) tealeaf residue, sugared slag, humic acids boron mixed and are placed in compost pond, adding a small amount of water secondary fermentation 20 days, after gained tunning is dried pulverizing, granulation is for subsequent use;

(2) heating of slowly-releasing micritization ground phosphate rock coating layer is dissolved rear even application in step one gained particle exterior surface, form the internal layer of synergistic agent;

(3) by levigate after potassium primary phosphate and gelatin mixing, add after a small amount of water with step 2 gained particle mix and blend, drop in whizzer centrifugal 20 minutes with 90 revs/min again, slowly releasing trace element chelating layer is added again in whizzer, centrifugal 12 minutes with 200 revs/min, to form the middle level of synergistic agent, taking-up particle post-drying is for subsequent use;

(4) by magnesium sulfate and zinc sulphate powder levigate after add a small amount of water even application in step 3 gained particle exterior surface, then slowly-releasing microbial layer and remaining component are mixed and add the spraying of a small amount of water and be wrapped in outside particle, form the skin of synergistic agent;

(5) air-dry with gas blower at step 4 gained particle being placed in 50 DEG C, weighing and bagging is placed on dry place and preserves.

In order to further illustrate using value of the present invention, contriver have chosen one piece of experimental plot maize planting, be divided into 2 parts of equal areas, and apply the corn special-purpose fertilizer of equivalent simultaneously, portion applies fertilizer synergist of the present invention in proportion as experimental group wherein again, another part as a control group, after seeding corn, plantation 90 days after, plantation 180 days after get the mensuration that two groups of soil carry out fertilizer efficiency respectively, measure output after harvest corn, data are as follows again:

Project	Control group	Experimental group
			Soil available nitrogen content (mg/kg)	44.25	59.63
Content of soil available phosphor (mg/kg)	69.75	113.25
			Soil Available potassium content (mg/kg)	142.03	175.86
Disease incidence (%)	7.2	3.6
			Corn yield (kg/ mu)	577	629

After can finding out employ corn fertilizer synergist of the present invention from above experimental data, within the corn growth stage, the average fertility of soil is all much larger than the plot being used alone fertilizer, decrease disease incidence simultaneously, finally improve corn yield, be suitable for promoting the use of of corn planting industry.

Claims (2)

1. one kind is improved the slow release fertilizer synergistic agent of Maize Absorption ability, it is characterized in that, be made up of the raw material of following weight part: potassium primary phosphate 16-19, magnesium sulfate 3-4, zinc sulphate powder 1-2, tealeaf residue 18-20, sugared slag 17-22, humic acids boron 14-16, gelatin 5-6, slowly-releasing microbial layer 2-4, slowly releasing trace element chelating layer 4-5, slowly-releasing micritization ground phosphate rock coating layer 6-9, water are appropriate;

Described slowly-releasing microbial layer is made up of the raw material of following weight part: EM microbiobacterial agent 5-7, diatomite 45-55, syrup 120-140; Its preparation method adds in syrup by EM complex micro organism fungicide, stir microorganism suspension is for subsequent use, diatomite sulphuric acid soln is soaked 60 minutes after washings to neutral, oven dry toasts 2-3 hour under being placed on 400-500 DEG C of environment, taking-up is worn into fine powder after being cooled to room temperature and is joined in microorganism suspension, stir 20-30 minute, leach fine particle, at 30-40 DEG C, use gas blower air-dry;

Described slowly releasing trace element chelating layer is made up of the raw material of following weight part: attapulgite 24-26, discarded animal skin 16-18, ferrous sulfate 4-7, zinc sulfate 3-5; Its preparation method to calcine 2 hours at attapulgite is placed in 600-800 DEG C and to wear into fine powder for subsequent use, discarded animal skin is joined in 6-8mol/L hydrochloric acid and is hydrolyzed 18-24 hour, adding lime slurry neutralization again to PH7 filters, and adds ferrous sulfate, be heated to 40-60 DEG C in filtrate, chelating 1-2 hour, add zinc sulfate again, chelating 1.5-3 hour at 50-80 DEG C, attapulgite fine powder is joined in gained chelating liquid, drying is also pulverized, and obtains composite chelate powder;

Described slowly-releasing micritization ground phosphate rock coating layer is made up of the raw material of following weight part: ground phosphate rock 28-32, cow glue 8-10, water are appropriate; Its preparation method is adopted by ground phosphate rock vibration mill micronization to obtain micritization ground phosphate rock, then cow glue and micritization ground phosphate rock jointly to be dropped into etc. in quality water, soaks after 8-10 hour and mixed system is heated to 70-80 DEG C, stir.

2. the slow release fertilizer synergistic agent of the raising Maize Absorption ability according to claims 1, it is characterized in that, the concrete steps of preparation method are as follows:

(1) tealeaf residue, sugared slag, humic acids boron mixed and are placed in compost pond, adding a small amount of water secondary fermentation 18-20 days, after gained tunning is dried pulverizing, granulation is for subsequent use;

(2) heating of slowly-releasing micritization ground phosphate rock coating layer is dissolved rear even application in step one gained particle exterior surface, form the internal layer of synergistic agent;

(3) by levigate after potassium primary phosphate and gelatin mixing, add after a small amount of water with step 2 gained particle mix and blend, drop in whizzer centrifugal 20 minutes with 80-100 rev/min again, slowly releasing trace element chelating layer is added again in whizzer, with 200 revs/min of centrifugal 10-15 minute, to form the middle level of synergistic agent, taking-up particle post-drying is for subsequent use;

(4) by magnesium sulfate and zinc sulphate powder levigate after add a small amount of water even application in step 3 gained particle exterior surface, then slowly-releasing microbial layer and remaining component are mixed and add the spraying of a small amount of water and be wrapped in outside particle, form the skin of synergistic agent;

(5) air-dry with gas blower at step 4 gained particle being placed in 45-55 DEG C, weighing and bagging is placed on dry place and preserves.