A product for seed incrustation and a preparation of the product for seed incrustation (film coating).

摘要

The product according to the invention is a solution of macromolecular compounds containing carboxyl and amide groups in a molar ratio of carboxyl groups to amide groups of 1:0,001 - 1:1. The product according to the invention is prepared from polyacrylonitrile hydrolyzate or acrylonitrile copolymer optionally supplemented with other polymers such as cellulose, cotton, albumin, polyamide and/or polyester in an amount of up to 10%. The way of preparation according to the invention consists in neutralizing the hydrolyzate of acrylic polymers to a pH of 6.0 - 8.0, removing the excess of ammonia to 1 - 10 g/dcm<3> and then in diluting until the concentration of the solution reaches 1 - 15% w/v. The hydrolyzate is then neutralized with organic and/or mineral acids at a temperature of 10 - 60 DEG C, during more than 10 minutes under continuous agitation. The neutralized hydrolyzate is then to be diluted with water and/or organic solvents. The treatment of seeds according to the invention consists in coating the seeds with a mixture of the seed incrustation product with plant pesticides optionally supplemented with nutrient media and dyes and removing the solvent from seeds after dressing. The product after being coated on the seeds builds up a polymer film that binds the dressing chemicals. The incrustation causes the dressing chemicals to be coated on the seeds in a uniform and firm way, the dosing to be precise and dosages of dressing chemicals to be optimized as well as dusting during dressing, packaging, transport and sowing to be avoided.