Fertilization with furrows. High temperatures in summer should not be used with water. Because the temperature is higher, when the chemical fertilizer is flushed, a large amount of ammonia volatilizes will reduce the fertilizer effect. Especially ammonium bicarbonate is more likely to cause eggplant ammonia poisoning. The use of trenching or digging a hole to bury the best. The thickness of the buried soil after dressing should be not less than 5 cm to reduce the volatilization of the active ingredients of the fertilizer.
Reasonable match. Although eggplant is the most demanding nitrogen fertilizer, phosphorus and potassium fertilizers are indispensable. When topdressing, only nitrogen fertilizers cannot be topdressed each time. In the full fruit period, it is best to apply two compound fertilizers at a time, and each time, topdressing no less than 40 kg per acre to meet the needs of eggplant growth and results.
Pay attention to usage. Eggplant requires the most amount of nitrogen, but in the hot season, it is necessary to eat less. Urea application per acre should generally be controlled within 30 kilograms. Ammonium bicarbonate should not exceed 40 kg per acre. If the amount of fertilizer is too large, nutrient loss will occur, and ammonia damage will also be caused to the leaves and fruits of eggplant.
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