CN105237258A - Efficient and easy-to-use ardealite soil amendment and preparation method therefor - Google Patents

Abstract

The invention discloses an efficient and easy-to-use ardealite soil amendment. The efficient and easy-to-use ardealite soil amendment is prepared from the following raw materials in parts by weight: 16-18 parts of malt sprout roots, 6-9 parts of zinc fulvate, 120-140 parts of ardealite, 20-24 parts of earthworm cast, 4-6 parts of ferrous sulfate, 14-16 parts of red mud, 13-16 parts of farming and forestry waste powder, 6-8 parts of ammonium hydrogen carbonate, 2-3 parts of EM (Effective Microorganisms) microbial agent, 3-5 parts of abandoned green lemon peel and a proper volume of water. According to the ardealite soil amendment disclosed by the invention, through adding biological organic matters, the adsorbability of the amendment is improved, the toxic hazard to crops by aluminum in soil can be effectively lowered, and more calcium and sulfur can be supplied to the crops, so that the effect of increasing the yield of the crops is achieved; and meanwhile, due to the relatively high solubility of the calcined ardealite, an ideal effect can be achieved by applying the ardealite soil amendment to a shallow soil layer, and thus the consumption of labor power during use is lowered.

Description

A kind of efficient wield phosphogypsum soil improvement agent and preparation method thereof

Technical field

The present invention relates to a kind of soil improvement agent technical field, particularly efficient wield phosphogypsum soil improvement agent of one 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 efficient wield phosphogypsum soil improvement agent 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: root of Cornu Cervi Pantotrichum 16-18, xanthohumic acid zinc 6-9, phosphogypsum 120-140, wormcast 20-24, ferrous sulfate 4-6, red mud 14-16, agriculture and forestry organic waste material powder 13-16, bicarbonate of ammonia 6-8, EM microbial inoculum 2-3, discarded blue or green lemon skin 3-5, water are appropriate;

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

(1) stir after root of Cornu Cervi Pantotrichum, wormcast, the mixing of agriculture and forestry organic waste material powder 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 40-50%, after ferment in the open 13-15 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 ferrous sulfate, xanthohumic acid zinc jointly join in fermented liquid, fermented liquid is heated to 70-90 DEG C, continuous stirring 40-60 minute, fermentation chelating liquid is obtained after naturally cooling, for subsequent use;

(3) at 450-550 DEG C, 20-30 minute is calcined after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, dry at again red mud being placed in 150-250 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, bicarbonate of ammonia 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.

Phosphogypsum soil improvement agent of the present invention is by adding biological organic matter, improve the adsorptivity of modifying agent, effectively can reduce the murder by poisoning of Aluminium in Soil to crop, and the more calcium of crop and sulphur can be supplied, reach the effect improving crop yield, simultaneously just can reach ideal effect because solubleness that calcined phosphogypsum is larger makes it can use at soil shallow-layer, decrease manpower consumption during use.

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: root of Cornu Cervi Pantotrichum 17, xanthohumic acid zinc 8, phosphogypsum 130, wormcast 22, ferrous sulfate 5, red mud 15, agriculture and forestry organic waste material powder 15, bicarbonate of ammonia 7, EM microbial inoculum 2, discarded blue or green lemon skin 4, water are appropriate;

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

(1) stir after root of Cornu Cervi Pantotrichum, wormcast, the mixing of agriculture and forestry organic waste material powder 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 45%, ferment in the open is after 14 days, fermentation heap is covered plastic film, ferment again 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 ferrous sulfate, xanthohumic acid zinc jointly join in fermented liquid, fermented liquid is heated to 80 DEG C, continuous stirring 50 minutes, obtains fermentation chelating liquid after naturally cooling, for subsequent use;

(3) calcine 25 minutes at 500 DEG C after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 200 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, bicarbonate of ammonia 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)	597	627
The average available phosphorus contents of soil (mg/kg)	54.96	63.48
			The average quick-acting potassium content of soil (mg/kg)	154.68	162.17
The average alkali-hydrolyzable nitrogen content (mg/kg) of soil	32.67	36.40
			Disease incidence (%)	5.9	3.5

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. an efficient wield phosphogypsum soil improvement agent, it is characterized in that, be made up of the raw material of following weight part: root of Cornu Cervi Pantotrichum 16-18, xanthohumic acid zinc 6-9, phosphogypsum 120-140, wormcast 20-24, ferrous sulfate 4-6, red mud 14-16, agriculture and forestry organic waste material powder 13-16, bicarbonate of ammonia 6-8, EM microbial inoculum 2-3, discarded blue or green lemon skin 3-5, water are appropriate.

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

(1) stir after root of Cornu Cervi Pantotrichum, wormcast, the mixing of agriculture and forestry organic waste material powder 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 40-50%, after ferment in the open 13-15 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 ferrous sulfate, xanthohumic acid zinc jointly join in fermented liquid, fermented liquid is heated to 70-90 DEG C, continuous stirring 40-60 minute, fermentation chelating liquid is obtained after naturally cooling, for subsequent use;

(3) at 450-550 DEG C, calcine 20-30 minute after phosphogypsum powder comminution is thin, obtain phosphogypsum powder, then dry at red mud is placed in 150-250 DEG C and wear into fine powder, by phosphogypsum powder, red mud powder, bicarbonate of ammonia 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.