Summer and autumn chestnut skillful fertilizer

Foliar fertilizer application method is effective for chestnut trees in various soils in summer. After 0.3-0.4% urea solution, 0.3-0.5% potassium dihydrogen phosphate solution and 0.3-0.4% borax solution were mixed, the canopy was sprayed before 9:00 a.m. on sunny days or after 3:00 p.m. and sprayed once more every 10 days. Twice. Spray fertilizer with a new high-fat film mixed together can improve fertilizer efficiency. In the flowering period, young fruit period, and fruit expansion period, a strong fruit turmeric was sprayed to increase the fruit pedicle and increase the nutrient delivery. Anti-drop, fruit drop, cracked fruit, stale fruit, malformed fruit.

The fertility of the chestnut orchard soil with fertile soil and thin fertilizer is very good. A round ring groove was excavated in the drip line of the chestnut canopy. The width of the groove was 25 cm and the depth was 20 cm. Each plant was given 1 kg of calcium phosphate, 0.3 kg of urea, and 0.25 kg of borax. When fertilizing, urea and borax should be dissolved in water first, and then ditching and applying water while applying fertilizer. After the fertilization, fill the trench back to prevent evaporation of nutrients.

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