CN105237259A - Ardealite soil amendment for promoting root growth and preparation method therefor - Google Patents

Abstract

The invention discloses an ardealite soil amendment for promoting root growth. The ardealite soil amendment is prepared from the following raw materials in parts by weight: 18-20 parts of rapeseed cake meal, 6-9 parts of ammonium sulfate, 2-4 parts of abandoned green lemon peel, 2-3 parts of magnesium sulfate, 3-4 parts of ferrous chloride, 100-120 parts of ardealite, 18-22 parts of red mud, 8-12 parts of ground tobacco, 10-12 parts of broken eggshells, 2-3 parts of EM (Effective Microorganisms) microbial agent and a proper volume of water. By using the ardealite soil amendment disclosed by the invention, the content of easily-absorbed nutrients in soil can be increased in a short time, and meanwhile, a variety of chelated nutrient elements are liberated; and through gathering a large amount of nutrients at roots of crops of a shallow soil layer, the growth of the roots of the crops can be remarkably promoted, and the density of the roots is improved, so that the nutrient elements can be sufficiently supplied to the crops and promote the growth of the crops, and the yield of the crops is increased.

Description

A kind of phosphogypsum soil improvement agent promoting root growth and preparation method thereof

Technical field

The present invention relates to a kind of soil improvement agent technical field, particularly a kind of phosphogypsum soil improvement agent promoting root growth and preparation method thereof.

Background technology

China is a large agricultural country, along with the development of national economy, agricultural continues to increase the demand of phosphate fertilizer, facilitate developing rapidly of Phosphate Fertilizer Industry, but the simultaneously also a large amount of phosphogypsum of by-product in Wet-process Phosphoric Acid Production, along with the increase of phosphate fertilizer production, the problems such as phosphogypsum contaminate environment, land occupation are also further outstanding.Therefore, the resource utilization of phosphogypsum recycling has important practical significance, and is the needs solving environmental pollution, be also develop a circular economy, the needs of efficent use of resources.

For this reason, current inventor provides a kind of soil improvement agent using phosphogypsum as main raw material(s) and preparation method thereof, rational production technique is utilized to avoid the destruction of phosphogypsum to environment, take full advantage of the element useful to crop soil existed in phosphogypsum simultaneously, strengthen soil quality, delay the degeneration of soil, reduce the pollution of heavy metal, it is made to be widely used in agricultural as the available resource of one, for structure resource-conserving, environmentally friendly harmonious society contribute.

Summary of the invention

The present invention compensate for the deficiencies in the prior art, provides a kind of phosphogypsum soil improvement agent promoting root growth 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: coarse colza meal 18-20, ammonium sulfate 6-9, discarded blue or green lemon skin 2-4, magnesium sulfate 2-3, iron protochloride 3-4, phosphogypsum 100-120, red mud 18-22, tobacco end 8-12, scrambled egg shell 10-12, EM microbial inoculum 2-3, water are appropriate;

The concrete steps of the preparation of described soil improvement agent are as follows:

(1) stir after coarse colza meal, tobacco end, the mixing of scrambled egg shell and drop in fermentation vat, EM microbial inoculum and suitable quantity of water is added again in fermentation vat, fermentation heap water content is kept to be 40-60%, after ferment in the open 12-15 days, fermentation heap is covered plastic film, ferment 6-8 days again, obtains tunning for subsequent use;

(2) step one gained tunning is squeezed, obtain fermented liquid and ferment slag, discarded blue or green lemon skin is pulverized levigate after and magnesium sulfate, iron protochloride jointly join in fermented liquid, fermented liquid is heated to 70-80 DEG C, continuous stirring 40-60 minute, fermentation chelating liquid is obtained after naturally cooling, for subsequent use;

(3) at 500-550 DEG C, calcine 20-30 minute after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 200-250 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, ammonium sulfate and step 2 gained ferment slag mixing granulation;

(4) by step 2 gained fermentation chelating liquid and leftover materials mixing, after stirring, by high pressure spray nozzle, atomizing spray is carried out to step 3 gained particle, finally that particle is air-dry with gas blower at 30-40 DEG C, preserve after weighing pack.

The using method of modifying agent of the present invention is used or is used at soil shallow-layer after mixing with fertilizer, and every mu of consumption is 200-300kg.

Beneficial effect of the present invention:

Organic composition can be removed to the calcining of phosphogypsum and red mud in preparation process, avoid secondary pollution, in phosphogypsum, multiple acidic component can be complementary with the strong basicity of red mud simultaneously, regulate the pH value of soil improvement agent, the two can not only improve soil property after being combined, regulation and control P in soil H value, it contains the compositions such as higher Si, Ca, K, P and the required trace element of tens of kinds of farm crop also can promote that crop forms silicified cell, strengthen plant physiology usefulness and anti-adversity, effective raising crop yield, improves the quality of crop.

The use of discarded blue or green lemon skin can increase the content of modifying agent soil ulmin on the one hand, improve reclamation result, its a large amount of citric acids contained can promote the sequestering action of metal-salt and fermented liquid on the other hand, generate the multiple Chelating state nutritive element being easy to plant absorption, increase soil fertility.

Use phosphogypsum soil improvement agent of the present invention can increase soil at short notice and easily absorb nutrient content, discharge multiple Chelating state nutritive element simultaneously, by the gathering of a large amount of nutrient at soil shallow-layer crop root, significantly can promote the growth of crop root, improve root density, thus enable nutritive element ample supply crop promote that it grows, improve the output of crop.

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: coarse colza meal 19, ammonium sulfate 8, discarded blue or green lemon skin 3, magnesium sulfate 2, iron protochloride 3, phosphogypsum 110, red mud 20, tobacco end 10, scrambled egg shell 11, EM microbial inoculum 3, water are appropriate;

The concrete steps of the preparation of described soil improvement agent are as follows:

(1) stir after coarse colza meal, tobacco end, the mixing of scrambled egg shell and drop in fermentation vat, then add EM microbial inoculum and suitable quantity of water in fermentation vat, keeping fermentation heap water content to be 50%, ferment in the open is after 14 days, fermentation heap is covered plastic film, then ferments 7 days, obtain tunning for subsequent use;

(2) step one gained tunning is squeezed, obtains fermented liquid and ferment slag, discarded blue or green lemon skin is pulverized levigate after and magnesium sulfate, iron protochloride jointly join in fermented liquid, fermented liquid is heated to 75 DEG C, continuous stirring 50 minutes, obtains fermentation chelating liquid after naturally cooling, for subsequent use;

(3) calcine 25 minutes at 520 DEG C after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 230 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, ammonium sulfate and step 2 gained ferment slag mixing granulation;

(4) by step 2 gained fermentation chelating liquid and leftover materials mixing, after stirring, by high pressure spray nozzle, atomizing spray is carried out to step 3 gained particle, finally that particle is air-dry with gas blower at 35 DEG C, preserve after weighing pack.

In order to further illustrate using value of the present invention, contriver have chosen one piece of rice test field rice cultivation, be divided into 2 parts of equal areas, before rice cultivation, first portion applies phosphogypsum soil improvement agent of the present invention as experimental group wherein, another part as a control group, then applies the paddy rice Special basal fertilizer of equivalent simultaneously to two groups, carry out fertilizer efficiency mensuration after rice growing every 30 days to the soil of two groups, add up output and disease incidence after rice harves, data are as follows again:

Project	Control group	Experimental group
			Paddy rice mean yield (kg/ mu)	609	649
The average available phosphorus contents of soil (mg/kg)	55.59	65.09
			The average quick-acting potassium content of soil (mg/kg)	154.53	160.59
The average alkali-hydrolyzable nitrogen content (mg/kg) of soil	34.81	36.73
			Disease incidence (%)	7.1	3.4

After above experimental data can be found out and employs phosphogypsum soil improvement agent of the present invention, during Rice Cropping, the average nutrient content of soil is all greater than control group, the pH value energy stable for extended periods of time state of soil simultaneously, its water-retentivity and nutrient preserving capability are also greatly increased, field disease and pest significantly reduces, improve the output of paddy rice, overall economic efficiency is increased dramatically.

Claims (2)

1. one kind promotes the phosphogypsum soil improvement agent of root growth, it is characterized in that, be made up of the raw material of following weight part: coarse colza meal 18-20, ammonium sulfate 6-9, discarded blue or green lemon skin 2-4, magnesium sulfate 2-3, iron protochloride 3-4, phosphogypsum 100-120, red mud 18-22, tobacco end 8-12, scrambled egg shell 10-12, EM microbial inoculum 2-3, water are appropriate.

2. the phosphogypsum soil improvement agent of promotion root growth according to claim 1, is characterized in that, the concrete steps of preparation method are as follows:

(1) stir after coarse colza meal, tobacco end, the mixing of scrambled egg shell and drop in fermentation vat, then add EM microbial inoculum and suitable quantity of water in fermentation vat, keeping fermentation heap water content to be 40-60%, after ferment in the open 12-15 days, fermentation heap is covered plastic film, then the 6-8 days that ferments, obtain tunning for subsequent use;

(2) step one gained tunning is squeezed, obtains fermented liquid and ferment slag, discarded blue or green lemon skin is pulverized levigate after and magnesium sulfate, iron protochloride jointly join in fermented liquid, fermented liquid is heated to 70-80 DEG C, continuous stirring 40-60 minute, obtains fermentation chelating liquid after naturally cooling, for subsequent use;

(3) at 500-550 DEG C, calcine 20-30 minute after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 200-250 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, ammonium sulfate and step 2 gained ferment slag mixing granulation;

(4) by step 2 gained fermentation chelating liquid and leftover materials mixing, after stirring, by high pressure spray nozzle, atomizing spray is carried out to step 3 gained particle, finally that particle is air-dry with gas blower at 30-40 DEG C, preserve after weighing pack.