Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent

A technology of agricultural waste and biochar, which is applied in the field of crop seed coating agent and its preparation, to achieve obvious economic and environmental benefits, and the effect of human and animal safety

Active Publication Date: 2013-04-24
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the existing problems, the purpose of the present invention is to provide a new type of biochar coating agent, without adding pesticide ingredients, safe and reliable

Method used

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  • Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent
  • Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent
  • Crop seed coating agent prepared from novel biomass carbon of agricultural wastes and preparation method of coating agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The new biochar coating agent comprises the following components in percentage by weight of seeds: 10% of biochar, 50% of filler, 1% of binder and 0.3% of dispersant.

[0022] Pour the seeds into the container, spray sodium alginate aqueous solution (concentration 1%, v / v) and ethylene glycol aqueous solution (concentration 0.3%, v / v) to moisten the surface of the seeds, add 1 / 4-1 / 5 soap Soil to make it evenly adhere to the surface of the seeds, repeat this 3-4 times, the thickness of the coating layer is 0.5mm; add the mixture of biochar and the remaining filler, shake the container until the coating material evenly adheres to the surface of the seeds, and place it for ventilation Dry in the shade for 1-2 hours in a dry place.

Embodiment 2

[0023] Germination rate, germination potential comparison of seed after embodiment 2 coating

[0024] The experimental group adopts the coated seeds prepared in Example 1, and two groups of control groups are set up, which are respectively CK group: adopt plump and non-residual corn seeds; and traditional group: adopt seeds coated with fertilizer type coating agent (in the seed Add necessary micronutrients and NPK macronutrients during the pelleting process), put 500g of air-dried and crushed soil through a 20-mesh sieve into each group of containers, plant 7 seeds, and supplement every 2 days Moisture should be kept at about 70% of the field water capacity. The operation was carried out according to the national seed inspection regulations, and the germination potential was measured after 4 days, and the germination rate was measured after 10 days.

[0025] Table 1

[0026]

[0027] Germination rate (%) = final germination number / tota...

Embodiment 3

[0028] Example 3 Effects on the Growth of Maize Seedlings

[0029] The experimental set-up, samples, and planting conditions were the same as those in Example 2. The days of indoor cultivation were 10 days, and the inspection indicators were corn root length, above-ground length, wet weight, dry weight, and chlorophyll. The results are shown in Table 2, figure 2 :

[0030] Table 2

[0031]

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PUM

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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 [0001] The invention relates to a crop seed coating agent prepared from agricultural waste and a preparation method thereof. technical background [0002] A coating agent is a substance that is used to coat crops or other plant seeds and has film-forming properties. It is made of pesticide raw materials (insecticides, fungicides, etc.), film-forming agents, dispersants, antifreeze agents and other preparations. It can be directly or diluted and coated on the surface of seeds to form a certain strength and permeability. protective preparations. [0003] At present, the coating agents widely used in the market generally contain pesticides, such as carbofuran and carbendazim, which are likely to cause environmental pollution and cause human and animal poisoning such as accidental ingestion. In recent years, with the enhancement of people's awareness of environmental protection and the improvement of food safety requirements, the research of pollution-free and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01C1/06
Inventor 董娟付潘潘潘根兴李恋卿张旭辉郑金伟郑聚峰
Owner NANJING AGRICULTURAL UNIVERSITY
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