| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: invention relates to fertilizer containing high temperature hardened melt of metaphosphoric acid salts of potassium, calcium and magnesium with addition of boron, sulfur, selenium, iron, copper, manganese, zinc, molybdenum, cobalt. Said fertilizer is useful as inducing agent of tobacco sprout resistance to diseases and is introduced into soil before tobacco seeding in amount of 5-15 g/m2. ^ EFFECT: agent of biological effectiveness and decreased cost. ^ 2 cl, 1 ex, 2 tbl |
