CN103053244B - Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent - Google Patents
Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent Download PDFInfo
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- CN103053244B CN103053244B CN201310015730.4A CN201310015730A CN103053244B CN 103053244 B CN103053244 B CN 103053244B CN 201310015730 A CN201310015730 A CN 201310015730A CN 103053244 B CN103053244 B CN 103053244B
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Abstract
The invention relates to a crop seed coating agent prepared from novel biomass carbon of agricultural wastes. The crop seed coating agent is characterized by comprising the following components by weight percent: 2.5-12.5% of biomass carbon, 20-60% of a filler, 0.5-1.5% of a binder, and 0.1-1% of a dispersing agent, wherein the binder is 0.5-2% aqueous solution of sodium alginate; the dispersing agent is 0.1-2% ethylene glycol aqueous solution; and the filler is bentonite. The method comprises the steps of pouring the seed into a coating device, spraying the binder and the dispersing agent to wet the seed surface; adding 1/4 to 1/5 of filler to be evenly attached to the seed surface, and repeating for 3-4 times until the enveloping layer is 0.4-0.6mm; adding a mixture of the biomass carbon and residual filler, and rocking the container, so that the enveloped material is evenly adhered to the seed surface, and drying in the shade at a well ventilated place. A pesticide ingredient is not added to the seed coating agent; and the seed coating agent has the same human and animal safety, germination rate, germinative force and growth situation of the crop as a common coating agent, and has significant economic and environmental benefits.
Description
technical field
The present invention relates to a kind of Crop seed coating agent prepared by agricultural wastes and preparation method thereof that utilizes.
Technical background
Seed coating medicine be a kind of for crop or other plant seed pelleting, there is the material of film forming characteristics.Made by pesticide original medicine (insecticide, bactericide etc.), film forming agent, dispersant, antifreezing agent and other preparation processing, can directly or after dilution be coated on the surface of the seed, form the protection preparation with some strength and permeability.
At present, on market, the seed coating medicine of extensive use generally all contains agricultural chemicals, as Furadan, carbendazim etc., easily causes environmental pollution, also easily causes and person poultry poisoning's phenomenon such as eats by mistake.In recent years, along with the raising of the enhancing of people's environmental consciousness, security requirement to food, the research of non-harmful environment-friendly type seed coating medicine more and more comes into one's own.
summary of the invention
In order to solve existing problem, the object of the present invention is to provide a kind of novel biomass charcoal seed coating medicine, do not add farm chemical ingredients, safe and reliable.
to achieve these goals, the present invention by the following technical solutions
A kind of Crop seed coating agent, is characterized in that comprising the following component that accounts for seed weight percentage meter: biomass carbon 2.5%-12.5%, filler 20%-60%, adhesive 0.5%-1.5%, dispersant 0.1-1%.
Described biomass carbon, better content is 5%-10%; Adhesive is the sodium alginate aqueous solution of 0.5%-2%, and preferred range is 0.5%-1.5%, and better is 1%; Dispersant is the glycol water of 0.1-1%, is preferably 0.3%; Filler is bentonite, and better content range is 40%-50%, and better is 50%.
A preparation method for Crop seed coating agent, its feature comprises the following steps being:
(1), seed is poured in the container of inner wall smooth, spray adhesive and dispersant make the surface of the seed moistening;
(2), add the filler of 1/4-1/5, make it evenly adhere to the surface of the seed, so repeat 3-4 time, to coated layer 0.4 mm-0.6mm;
(3), add people's biomass carbon with residue filler mixture, sway container and make capsulating material adhere to uniformly the surface of the seed, aeration-drying place is dried in the shade.
(4), must guard against under the sun and tan by the sun, prevent that seed from breaking and excess Temperature and seed coating medicine was lost efficacy.The coated seed drying can be used for sowing, also can place week a few days to one, and standing time, long meeting affect seed sprouting.
The biomass carbon that the present invention adopts is by organic waste, as animal wastes, plant roots and stems, the porous mass of a kind of height carbonization that the process such as wood chip and stalk high temperature pyrolysis processes, because of appearance loose porous, have larger surface area and charge density, this makes it more can sticking moisture and nutritive element than other organic substance in soil.There is good physical property and nutrient Regulation effect, after being manured into soil, can significantly promote Seed Germination and growth, thereby promote crop-producing power.Sodium alginate, a kind of natural polysaccharide, good adhesive, can control seed coating medicine active substance and slowly discharge.
Coating agent for seed of the present invention does not add the compositions such as agricultural chemicals, and to person poultry safety, and the germination rate of crop, germination vigor and growing state are identical with traditional seed coating medicine, and have obvious economy and environmental benefit.
Brief description of the drawings
Fig. 1 is seed coating medicine outside drawing; Illustrate after seed pelleting, difficult drop-off, is easy to moulding.
Fig. 2 is seed coating medicine result of the test figure; Corresponding embodiment 3: left side is experimental group, and right side is control group.As can be seen from the figure experimental group corn root length, ground minister are all than contrast group leader.
Embodiment
The biomass carbon that the present invention adopts is purchased from Henan three sharp new forms of energy Co., Ltd, and particle diameter is less than 2mm.
Embodiment 1
Novel biomass charcoal seed coating medicine, comprises the following component that accounts for seed weight percentage meter: biomass carbon 10%, filler 50%, adhesive 1%, dispersant 0.3%.
Seed is poured in container, sprayed sodium alginate aqueous solution (concentration 1%, v/v) and glycol water (concentration 0.3%, v/v) make the surface of the seed moistening, add the bentonite of 1/4-1/5, make it evenly adhere to the surface of the seed, so repeat 3 one 4 times coated bed thickness 0.5mm; The mixture that adds people's biomass carbon and residue inserts, sways container to capsulating material and adheres to equably the surface of the seed, places the aeration-drying place 1-2 hour that dries in the shade.
the germination rate of seed, germination vigor comparison after embodiment 2 dressings
The coated seed that experimental group adopts embodiment 1 to prepare, arranges two groups of control groups, is respectively CK group: adopt full without residual corn seed; And traditional group: adopt the coated seed (being to add necessary micronutrient element and nitrogen phosphorus potassium macronutrient in seed-pelleting process) of fertilizer type seed coating medicine; in every group of container, pack 500g into through soil air-dry, that pulverized 20 mesh sieves; implant 7 seeds; kept the skin wet every 2 days, remain on 70% left and right of field capacity.Operate by national seed testing code regulation, after 4 d, measure germination vigor, after 10 d, measure germination rate.
Table 1
Germination rate (%)=final germinative number/sum × 100%; Germination vigor (Gv)=n/N × 100%, n is the seed number of germinateing alloted days, N is seed sum.As can be seen from Table 1: the germination rate of control group (CK group, traditional group) and experimental group (embodiment 1) is 100%, but the germination vigor of experimental group (embodiment 1) capsuled seed is all high than control group, and from cost, environmental protection aspect, experimental group (embodiment 1) more has an economic benefit.
the impact of embodiment 3 on corn seedling seedling growth
Experiment is established group, sample, planting conditions with embodiment 2, and indoor cultivated days is 10 days, and investigating index is corn root length, ground minister, weight in wet base, dry weight and chlorophyll.The results are shown in Table 2, Fig. 2:
Table 2
embodiment 4:
The content of investigating different biomass carbons in component on dressing after the impact of main performance index of seed, all the other the component consumptions except biomass carbon are: adhesive 1%, dispersant 0.3%, filler 50%, the results are shown in Table 3.
Table 3
As can be seen from Table 3: within 10% scope, the content of biomass carbon on dressing after the not significantly impact of germination rate of seed, and long and overground part has a significant effect to the root of corn seedling.Along with the increase of biomass carbon content, the root of corn seedling is long, overground part also increases thereupon, but in the time that the content of biomass carbon is 12.5%, the germination vigor of seed, germination rate, root length, overground part all decrease.So the content of biomass carbon should be controlled at 2.5%-12.5% in this seed coating medicine, better 5-10%.
Embodiment 5
Investigate different binder concns on dressing after the impact of main performance index of seed: on the basis of example 1 seed coating medicine, other components and content are remained unchanged, the impact of the concentration of only investigating different sodium alginates in component on seed coating medicine main performance index, the results are shown in Table 4:
Table 4
As can be seen from Table 4: when the concentration of sodium alginate is during in 0.5% left and right, percentage of seedgermination is best, after this along with sodium alginate concentration increases, germination rate starts to reduce. this be because: the coating membrane that the concentration of sodium alginate forms between 0.5%-1% time has more good gas permeability, water penetration, ensure that seed can obtain sufficient oxygen and moisture in the time sprouting, for the growth of seed provides good external condition.
Embodiment 6
The impact of dispersant (concentration of ethylene glycol) on seed coating medicine main performance index:
On the basis of example 1 seed coating medicine, other components and content are remained unchanged, the impact (with embodiment 5) of the concentration of only investigating different ethylene glycol in component on seed coating medicine main performance index, the results are shown in Table 5:
Table 5
As can be seen from Table 5: the concentration of ethylene glycol is on the not significantly impact of the germination rate of seed coating medicine, germination vigor, expulsion rate but to seed coating medicine have a significant effect.In the time that the concentration of ethylene glycol is 0.3%, potentiality of seed, germination rate after dressing all reach 100%, simultaneously high 14.3 percentage points than potentiality of seed after the ethylene glycol dressing of other concentration.And in the time that the concentration of ethylene glycol reaches 2%, specify by national seed testing code: the expulsion rate >1% of seed coating medicine has not met standard, this is as dispersant because of ethylene glycol, when being added to when a certain amount of, can reduce the viscosity of seed coating medicine, cause the coating membrane of seed not tight, easily leaching loss, effect declines.To sum up tell: in this seed coating medicine, concentration the best of ethylene glycol should be 0.3%.
Embodiment 7
The impact of filler (content of bentonite) on seed coating medicine main performance index: on the basis of example 1 seed coating medicine, other components and content are remained unchanged, the impact (with embodiment 5) of the content of only investigating different bentonite in component on seed coating medicine main performance index, the results are shown in Table 6:
table 6
As can be seen from Table 6: germination vigor, the germination rate of the bentonite of different content on seed coating medicine all has impact.When the content of bentonite is 20%, may, because biomass carbon directly touches corn seed, affect the germination rate of seed; And bentonite is while being 60%, may be because bentonite be too many, while affect seed coating, breathe freely, water penetration, provide bad environment to seed germination.
Claims (2)
1. a novel biomass charcoal coating agent for seed that utilizes agricultural wastes to make, it is characterized in that comprising the following component that accounts for seed weight percentage meter: biomass carbon 5%-10%, filler 40%-50%, adhesive 1%, dispersant 0.3%, described adhesive is that concentration is the sodium alginate aqueous solution of 1%-1.5%; Dispersant is that concentration is the glycol water of 0.3%-1%; Filler is bentonite.
2. the novel biomass charcoal coating agent for seed that utilizes agricultural wastes to make according to claim 1, it is characterized in that comprising the following component that accounts for seed weight percentage meter: biomass carbon 10%, filler 50%, adhesive 1%, dispersant 0.3%, described adhesive is that concentration is 1% sodium alginate aqueous solution; Dispersant is that concentration is 0.3% glycol water; Filler is bentonite.
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| US10093588B2 (en) | 2011-06-06 | 2018-10-09 | Cool Planet Energy Systems, Inc. | Method for enhancing soil growth using bio-char |
| US10273195B2 (en) | 2011-06-06 | 2019-04-30 | Cool Planet Energy Systems, Inc. | Method for the bioactivation of biochar for use as a soil amendment |
| US9944538B2 (en) | 2013-10-25 | 2018-04-17 | Cool Planet Energy Systems, Inc. | System and method for purifying process water |
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| US11866329B2 (en) | 2017-12-15 | 2024-01-09 | Talipot Cool Extract (Ip), Llc | Biochars, biochar extracts and biochar extracts having soluble signaling compounds and method for capturing material extracted from biochar |
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