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METHOD OF PRESOWING TREATMENT OF VEGETABLE CROP SEEDS AND METHOD FOR PREPARING VEGETABLE CROP SEED TREATMENT PREPARATION
METHOD OF PRESOWING TREATMENT OF VEGETABLE CROP SEEDS AND METHOD FOR PREPARING VEGETABLE CROP SEED TREATMENT PREPARATION
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机译:蔬菜作物种子的前处理方法和蔬菜作物种子的制备方法
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FIELD: agriculture. SUBSTANCE: treatment is effected with bifungicidal preparation containing strain of spore bacterium-antagonist Bacillus subtilis. Optimum results are obtained with 30 to 130 g of preparation per 1 g of seeds depending on their size and roughness of their surface. Treated seeds are immediately dried by one of known techniques at 40-50 C to moisture content 12-14%. Bifungicidal preparation is prepared by mixing polyvinylacetate emulsion and biologically-active substances, in particular, mixture from culture broth containing Bacillus subtilis strain with concentration 106-107 clones in 1 ml, filler (sterile chalk or dolomite) and aqueous diluent (water or aqueous solution of substances nontoxic for seeds and bacteria). Bacillus subtilis strain is cultured in liquid sterile nutrient medium containing 4% of corn bran and 0.3% of chalk on shaker or fermenter at 30 ± 1 C for 24-36 hr. Preparation components are mixed in following amounts, wt %: polyvinylacetate emulsion 20 ± 2, culture broth 20 ± 2, aqueous diluent 20 ± 2, filler - the balance. As aqueous diluent, in particular, nontoxic dye is used. EFFECT: increased infection protection of seeds, accelerated their germination, and increased crop capacity. 5 cl, 2 tbl, 2 ex
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