CN104803783A - Corn used liquid fertilizer mulching film capable of realizing safe degradation and preparation method of mulching film - Google Patents

Abstract

The invention discloses a corn used liquid fertilizer mulching film capable of realizing safe degradation. The mulching film is prepared from the following raw materials in part by weight: 29-31 parts of kieselguhr, 12-16 parts of modified starch solution, 20-24 parts of biogas residue, 6-8 parts of pitch, 8-10 parts of coffee bean, 2-3 parts of a complex microbial agent, 16-18 parts of used vegetable leaf, and a proper amount of water. According to the liquid fertilizer mulching film, the added fermentation liquor such as the biogas residues and pitch are transformed into humic acid under the action of illumination and biological effect to be decomposed into soil, thereby achieving remarkable effect on heat preservation, soil moisture conservation, and corn yield increment; and besides, the multiple microbial agents immobilized in the mulching film improve the internal physicochemical property of soil, guarantee the safe degradation of the mulching film, and have no negative effect on soil and corn planting.

Description

Liquid fertilizer mulch film of a kind of corn safe disposal and preparation method thereof

Technical field

The present invention relates to a kind of agricultural film technical field, particularly a kind of liquid fertilizer mulch film and preparation method thereof of corn safe disposal.

Background technology

Mulch film has the effects such as insulation, water conservation, frost protection to crop, the application of ground membrane technique improves and the output and the benefit that add farm crop greatly, but traditional mulch film is a kind of macromolecular compound of synthetic, degradable hardly in its natural state, after using, place to go is not comprehended and is caused very large pollution to edatope, affects crop root growth, and the mulch film of process is because of moist, damaged, also not reusable edible, can only as refuse reclamation, and work consuming is consuming time.

For this reason, the present inventor provides a kind of liquid fertilizer mulch film for corn, not only there is the water-retaining effect performance that common ground film is outstanding, have higher fertilizer simultaneously, material choice mostly is organic matter of easily degrading, simultaneously containing soil probiotics, by spraying the gel-like film formed in soil surface, provide protection is provided to corn planting, the use of collocation fertilizer, the dissolution rate of the nutrients such as Nitrogen, Phosphorus potassium can be improved, thus improve corn to the receptivity of fertilizer, its degraded product then forms the abundant humic acids of fertility, carbonic acid gas and water, not only pollution-free to soil, the physico-chemical property of soil can also be improved, as the substitute of common ground film, there is good application prospect.

Summary of the invention

The present invention compensate for the deficiencies in the prior art, provides liquid fertilizer mulch film of a kind of corn safe disposal and preparation method thereof.

Technical scheme of the present invention is as follows:

Mulch film of the present invention is made up of the raw material of following weight part: diatomite 29-31, modified starch solution 12-16, natural pond slag 20-24, pitch 6-8, coffee berry 8-10, complex micro organism fungicide 2-3, old vegetable leaf 16-18, water are appropriate;

Described complex micro organism fungicide is silicate bacteria microbial inoculum, bacillus subtilis microbial agent and photosynthetic bacteria microbial inoculum, and proportion is 2:2:1;

Described modified starch solution is made up of the raw material of following weight part: potato starch 45-55, calcium acetate 2-4, potassium permanganate solution 2-3, vinylformic acid 15-20, sodium hydroxide 3-4, N,N methylene bis acrylamide 0.1-0.3, ferrous sulfate 8-10, zinc sulfate 6-8, manganous sulfate 7-9, its preparation method is dissolved in by potato starch to double in the water of its quality, be heated to 70-90 DEG C of gelatinization 30-60 minute, add potassium permanganate solution oxidation 50-70 minute again, period constantly stirs, vinylformic acid and sodium hydroxide is added again in solution, then N is added, N-methylene-bisacrylamide is cross-linked 20-30 minute, add calcium acetate again and stir, ferrous sulfate is added after reaction system being heated to 50-60 DEG C, chelating 15 minutes also stirs, add zinc sulfate more afterwards, chelating 15 minutes, finally add manganous sulfate, reaction system is warmed up to 60-80 DEG C, chelating 20-30 minute, namely chelating iron is obtained, zinc, the Modified soil bean starch solution of manganese.

The concrete steps of the preparation of described mulch film are as follows:

(1) diatomite, old vegetable leaf, natural pond slag, pitch mixing are placed in fermentation vat, in fermentation vat, add suitable quantity of water keep fermentation heap water content to be 55%-65%, take out fermentation materials after fermentation 3-4 week and squeeze, obtaining fermented liquid for subsequent use;

(2) coffee berry is dried at 50-70 DEG C, regrind into fine powder, in coffee fine powder, add a small amount of water, be heated to 65-85 DEG C, stir 20-30 minute, when coffee liquid is cooled to 30 DEG C, silicate bacteria microbial inoculum, bacillus subtilis microbial agent, photosynthetic bacteria microbial inoculum are joined in coffee liquid, after stirring, gained coffee liquid is filtered, filtrate is levigate at 40-50 DEG C of leeward dry doubling with gas blower, be fixed the soluble coffee fine powder of microbiobacterial agent, for subsequent use;

(3) mixed with modified starch solution by step 1 gained fermented liquid and stir, join in stoving oven, at 100-130 DEG C, dry 20-30 minute, cooling crush crosses 200 mesh sieves, for subsequent use;

(4) step 2 gained coffee fine powder, step 3 gained powder and leftover materials are mixed, dry at 40-50 DEG C, namely obtain liquid fertilizer mulch film of the present invention after metering packing;

(5) liquid fertilizer mulch film using method of the present invention is that carry out the sprinkling of soil surface with atomizer, every mu of diluent usage quantity is 17-23 kilogram by after pulvis and water in mass ratio 1:9 mixed dissolution.

Beneficial effect of the present invention:

Modified starch solution is medium trace element needed for multiple corn growth as chelating while liquid-state mulch film membrane-forming agent, is more easily absorbed than common fertilizer.

Coffee berry is as edible product, and its powder has outstanding adsorptive power, is carried out immobilized microbiobacterial agent by the adsorptivity of coffee powder and strong solubility and is added in liquid fertilizer mulch film, can produce optimize improving effect significantly to the plantation of corn and soil.

The fermented liquid such as natural pond slag, pitch that liquid fertilizer mulch film of the present invention adds, humic acids is changed into after being subject to illumination or biological action, then decompose and enter soil, in insulation soil moisture conservation, improve corn yield aspect and there is remarkable effect, simultaneously fixing in mulch film multiple-microorganism microbial inoculum improves the inside physico-chemical property of soil on the one hand, ensure that the safe disposal of mulch film on the other hand, to soil and corn planting without negative impact.

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: diatomite 30, modified starch solution 15, natural pond slag 22, pitch 7, coffee berry 9, complex micro organism fungicide 3, old vegetable leaf 17, water are appropriate;

Described complex micro organism fungicide is silicate bacteria microbial inoculum, bacillus subtilis microbial agent and photosynthetic bacteria microbial inoculum, and proportion is 2:2:1;

Described modified starch solution is made up of the raw material of following weight part: potato starch 50, calcium acetate 3, potassium permanganate solution 2, vinylformic acid 18, sodium hydroxide 3, N,N methylene bis acrylamide 0.1, ferrous sulfate 10, zinc sulfate 7, manganous sulfate 8, its preparation method is dissolved in by potato starch to double in the water of its quality, be heated to 80 DEG C of gelatinizations 40 minutes, add potassium permanganate solution again and be oxidized 60 minutes, period constantly stirs, vinylformic acid and sodium hydroxide is added again in solution, then N is added, crosslinked 20 minutes of N-methylene-bisacrylamide, add calcium acetate again and stir, ferrous sulfate is added after reaction system being heated to 50 DEG C, chelating 15 minutes also stirs, add zinc sulfate more afterwards, chelating 15 minutes, finally add manganous sulfate, reaction system is warmed up to 70 DEG C, chelating 20 minutes, namely chelating iron is obtained, zinc, the Modified soil bean starch solution of manganese.

The concrete steps of the preparation of described mulch film are as follows:

(1) diatomite, old vegetable leaf, natural pond slag, pitch mixing are placed in fermentation vat, in fermentation vat, add suitable quantity of water keep fermentation heap water content to be 60%, take out fermentation materials after fermenting 3 weeks and squeeze, obtaining fermented liquid for subsequent use;

(2) coffee berry is dried at 60 DEG C, regrind into fine powder, in coffee fine powder, add a small amount of water, be heated to 75 DEG C, stir 25 minutes, when coffee liquid is cooled to 30 DEG C, silicate bacteria microbial inoculum, bacillus subtilis microbial agent, photosynthetic bacteria microbial inoculum are joined in coffee liquid, after stirring, gained coffee liquid is filtered, filtrate is levigate at 45 DEG C of leeward dry doublings with gas blower, be fixed the soluble coffee fine powder of microbiobacterial agent, for subsequent use;

(3) mixed with modified starch solution by step 1 gained fermented liquid and stir, joining in stoving oven, dry 25 minutes at 120 DEG C, cooling crush crosses 200 mesh sieves, for subsequent use;

(4) step 2 gained coffee fine powder, step 3 gained powder and leftover materials are mixed, dry at 45 DEG C, namely obtain liquid fertilizer mulch film of the present invention after metering packing;

(5) liquid fertilizer mulch film using method of the present invention is that carry out the sprinkling of soil surface with atomizer, every mu of diluent usage quantity is 20 kilograms by after pulvis and water in mass ratio 1:9 mixed dissolution.

In order to further illustrate using value of the present invention, contriver have chosen the corn of 10 mu of field plantation same breed, wherein 5 mu spray liquid fertilizer mulch film 20kg of the present invention as experimental group every mu, use commercially available common fertilizer as base manure simultaneously, other 5 mu only use commercially available common fertilizer as base manure as a control group, between planting season, the management mode of two groups is identical, and the mensuration of the soil temperature, soil nutrient content, soil water-retaining situation etc. of different time sections between planting season having been carried out in data, result is as follows:

Project	Control group	Experimental group
			The 8:00 soil moisture (DEG C)	21.62	23.66
The 18:00 soil moisture (DEG C)	24.56	27.48
			Soil alkali-hydrolyzable nitrogen content (mg/kg)	49.20	68.74
Soil available phosphorus content (mg/kg)	72.71	116.78
			Available potassium in soils content (mg/kg)	286.34	343.76
Soil moisture content (%) after watering	17.7	19.8
			Soil moisture content (%) after watering one day	8.6	15.4
Average water retention (%)	48.6	77.8
			Corn yield (kg/ mu)	573	617
Plastic-film disintegration situation	——	Degradable after 60 days

After can finding out employ liquid fertilizer mulch film of the present invention from above experimental data, soil is all better than the plot being used alone fertilizer in insulation water conservation, soil fertility etc., and finally improves corn yield, is suitable for promoting the use of of corn planting industry.

Claims (2)

1. the liquid fertilizer mulch film of a corn safe disposal, it is characterized in that, be made up of the raw material of following weight part: diatomite 29-31, modified starch solution 12-16, natural pond slag 20-24, pitch 6-8, coffee berry 8-10, complex micro organism fungicide 2-3, old vegetable leaf 16-18, water are appropriate;

Described complex micro organism fungicide is silicate bacteria microbial inoculum, bacillus subtilis microbial agent and photosynthetic bacteria microbial inoculum, and proportion is 2:2:1;

Described modified starch solution is made up of the raw material of following weight part: potato starch 45-55, calcium acetate 2-4, potassium permanganate solution 2-3, vinylformic acid 15-20, sodium hydroxide 3-4, N,N methylene bis acrylamide 0.1-0.3, ferrous sulfate 8-10, zinc sulfate 6-8, manganous sulfate 7-9, its preparation method is dissolved in by potato starch to double in the water of its quality, be heated to 70-90 DEG C of gelatinization 30-60 minute, add potassium permanganate solution oxidation 50-70 minute again, period constantly stirs, vinylformic acid and sodium hydroxide is added again in solution, then N is added, N-methylene-bisacrylamide is cross-linked 20-30 minute, add calcium acetate again and stir, ferrous sulfate is added after reaction system being heated to 50-60 DEG C, chelating 15 minutes also stirs, add zinc sulfate more afterwards, chelating 15 minutes, finally add manganous sulfate, reaction system is warmed up to 60-80 DEG C, chelating 20-30 minute, namely chelating iron is obtained, zinc, the Modified soil bean starch solution of manganese.

2. the liquid fertilizer mulch film of the corn safe disposal according to claims 1, is characterized in that, the concrete steps of preparation method are as follows:

(1) diatomite, old vegetable leaf, natural pond slag, pitch mixing are placed in fermentation vat, in fermentation vat, add suitable quantity of water keep fermentation heap water content to be 55%-65%, take out fermentation materials after fermentation 3-4 week and squeeze, obtaining fermented liquid for subsequent use;

(2) coffee berry is dried at 50-70 DEG C, regrind into fine powder, in coffee fine powder, add a small amount of water, be heated to 65-85 DEG C, stir 20-30 minute, when coffee liquid is cooled to 30 DEG C, silicate bacteria microbial inoculum, bacillus subtilis microbial agent, photosynthetic bacteria microbial inoculum are joined in coffee liquid, after stirring, gained coffee liquid is filtered, filtrate is levigate at 40-50 DEG C of leeward dry doubling with gas blower, be fixed the soluble coffee fine powder of microbiobacterial agent, for subsequent use;

(3) mixed with modified starch solution by step 1 gained fermented liquid and stir, join in stoving oven, at 100-130 DEG C, dry 20-30 minute, cooling crush crosses 200 mesh sieves, for subsequent use;

(4) step 2 gained coffee fine powder, step 3 gained powder and leftover materials are mixed, dry at 40-50 DEG C, namely obtain liquid fertilizer mulch film of the present invention after metering packing;

(5) liquid fertilizer mulch film using method of the present invention is that carry out the sprinkling of soil surface with atomizer, every mu of diluent usage quantity is 17-23 kilogram by after pulvis and water in mass ratio 1:9 mixed dissolution.