DEFOLIANT COMPOSITION
FIELD: agriculture. SUBSTANCE: invention relates to agents used for cotton defoliation on the basis of N-(1,2,3-thiadiazolyl-5)-$$$-phenylurea (dropp). Dropp-base composition has N-(1,2,4-triazolyl-4)-$$$-phenylurea or N-(1,2,4-triazolyl-4)-$$$-phenylurea sodium salt as a synergist taken at mass rat...
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Sprache: | eng |
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Zusammenfassung: | FIELD: agriculture. SUBSTANCE: invention relates to agents used for cotton defoliation on the basis of N-(1,2,3-thiadiazolyl-5)-$$$-phenylurea (dropp). Dropp-base composition has N-(1,2,4-triazolyl-4)-$$$-phenylurea or N-(1,2,4-triazolyl-4)-$$$-phenylurea sodium salt as a synergist taken at mass ratio 1: (2.5-40). Defoliating effect is evident at the dose 0.7-2.0 kg/ha. Mixture of dropp with butylcaptax has a dose 2.86 kg/ha (by active component). Dropp yield in the proposed preparation is 0.05-0.2 kg/ha that 1.5-7-fold less as compared with dropp without synergist. EFFECT: increased activity of dropp-base composition, decreased dose and toxicity for warm-blooded animals than combination of dropp and butylcaptax. 3 tbl |
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