When iron deficiency fertilizer wheat is found in the early stage of growth or when iron deficiency is found, it is sprayed with 0.2%~0.3% ferrous sulfate solution.
Boron-deficient fertilizer was used as base fertilizer: 1 kg of borax per acre was applied to the soil before sowing. For fertilizer: 10 grams of borax, soluble in 5 kg of water, mixed with 50 kg of wheat. Root dressing: In the wheat seedling stage, jointing stage and booting stage, spray 0.1% to 0.2% borax solution once.
Manganese-free basal fertilizer: 1 kg of manganese sulfate per acre, combined with soil preparation applied to the soil. For seed fertilizer: When sowing, mix 4-6 grams of manganese sulfate per kilogram of wheat seed. Fertilizer outside the root: When wheat is in the seedling stage, jointing stage, flowering stage, or when plants show symptoms of manganese deficiency, they are sprayed with 0.1% to 0.2% manganese sulfate solution.
Copper fertilizer is used as base fertilizer: 1 to 1.5 kg of copper sulfate per acre is applied to the soil during site preparation. For seed fertilizer: When sowing, use copper sulphate to seed 0.2% to 0.3% of the seed amount, and mix well for 12 to 17 hours. Fertilizers outside the roots: During the growing season, wheat was found to be copper-deficient and timely sprayed with 0.2% to 0.4% copper sulfate solution.
Deficient zinc fertilizer is used as base fertilizer: 1 to 2 kg of zinc sulfate per acre is applied to soil during site preparation. Soaking: Put the selected wheat seeds into a 0.05% zinc sulfate solution and soak for 12 to 24 hours. Remove and dry to dry. For topdressing: In the wheat seedling stage, 1 kg of zinc sulfate per mu, against fine dry soil or organic fertilizer 15 to 20 kg, the ditch applied in the interline, the earlier the better the effect. Fertilizer outside the root: After wheat seedling stage, jointing stage and heading, spray with 0.1% to 0.2% zinc sulfate solution.
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