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Large-grain seed binding material for air seeding for high sand dunes

A dune and granulation technology, applied in the direction of seed coating/seed dressing, etc., can solve the problems of large granulation, germination and damage of seeds, and achieve the effect of fast disintegration speed and high bonding strength.

Inactive Publication Date: 2011-08-03
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies in the seeds used for aerial sowing for the control of tall deserts, the present invention provides a coating material for irregular large-grained seeds for aerial sowing. and other key technical issues

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Add 40 liters of tap water in the reactor, add 2 kg of polyvinyl alcohol, heat and dissolve for later use. Add 40 liters of tap water, 0.25 kg of cetyltrimethylammonium bromide and 1 kg of chitosan with a molecular weight of 700,000 and a degree of deacetylation of 90% in the reactor, add acetic acid to make the mixture acidic, at room temperature Stir to dissolve, then add 5 kg of attapulgite clay and 10 kg of montmorillonite and continue stirring for 30 minutes, then add 0.2 kg of N, N'-methylenebisacrylamide and continue stirring for 30 minutes. Add the polyvinyl alcohol solution into the above system and continue stirring for 1 hour to obtain the composite liquid coating material.

Embodiment 2

[0020] Add 40 liters of tap water in the reactor, add 2.5 kg of polyvinyl alcohol, heat to dissolve and set aside. Add 40 liters of tap water, 0.5 kilogram of octadecyltrimethylammonium bromide and 1 kilogram of chitosan with a molecular weight of 900,000 and a degree of deacetylation of 85% in the reactor, add acetic acid to make the mixture acidic, at room temperature Stir to dissolve, then add 3 kg of illite and 12 kg of montmorillonite and continue to stir for 30 minutes, then add 0.2 kg of N, N'methylenebisacrylamide and continue to stir for 30 minutes. Add the polyvinyl alcohol solution into the above system and continue stirring for 1 hour to obtain the composite liquid coating material.

Embodiment 3

[0022] Add 40 liters of tap water in the reactor, add 2 kg of polyvinyl alcohol, heat and dissolve for later use. Add 40 liters of tap water, 0.3 kg of dodecyltrimethylammonium bromide and 1 kg of chitosan with a molecular weight of 800,000 and a degree of deacetylation of 88% in the reactor, add acetic acid to make the mixture acidic, at room temperature Stir to dissolve, then add 5 kg of vermiculite and 10 kg of rectorite and continue to stir for 30 minutes, then add 0.5 kg of N, N'methylenebisacrylamide and continue to stir for 30 minutes. Add the polyvinyl alcohol solution into the above system and continue stirring for 1 hour to obtain the composite liquid coating material.

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PUM

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Abstract

The invention discloses a large-grain seed binding material for air seeding for high sand dunes. Chitosan and surfactant are dissolved in acid aqueous solution, clay is added into the solution after full stirring to perform intercalation treatment, then a cross linker is added into the solution, and the solution is compounded with aqueous solution of polyvinyl alcohol to form a composite liquid coating material. The clay intercalation and interpenetrating network technology are adopted for effectively overcoming the contradiction between coating and breakage and between coating and sprouting caused by air-seeding large-grain seed adhesive.

Description

technical field [0001] The invention relates to the field of ecological restoration and control, in particular to a large-grained seed bonding material for aerial sowing of tall sand dunes. Background technique [0002] Due to my country's special geological and geographical environment, the desertification area is relatively large, and the desertification land accounts for about one-fifth of the country's land area, and the area affected by the desertification land accounts for about one-third of the country's total, directly affecting people's production and life. According to reports, in the 1950s in my country, sandstorms occurred an average of 5 times, and in the 1990s there occurred an average of 23 times. In recent years, although the state has increased investment in ecological restoration in the west, and some areas that are easy to restore have been improved, the technical demand for ecological restoration and governance under difficult site conditions is still urg...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01C1/06
Inventor 王爱勤杨效和郑易安
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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