Greenhouse peppers apply "three fertilizers" to increase production
Fertilize the base fertilizer at an applied rate of 6000 to 7500 kg per acre of composted organic fertilizer, plus 20 to 30 kg of urea, 30 to 40 kg of superphosphate, 20 to 30 kg of potassium sulfate, 50 kg of biological fertilizer, and 80 calcium silicate fertilizer. Kg, 2 kg of zinc sulphate, 2 kg of copper sulphate and 10-20 kg of magnesium sulfate or magnesium nitrate are evenly spread on the surface of the soil and evenly thrown into the plough layer soil in combination with the ground. Appropriate top-dressing seedlings are completed. When the first ear fruit grows to the size of walnut or 2 cm in length, the topdressing is performed for the first time. Mushi urea is 15 kg and potassium sulfate is 8 kg. When the fruit of the third layer falls, it is the second time for the peak period of fertilizer requirement. Top dressing should be carried out. Apply 20 kg of urea and 10 to 12 kg of potassium sulfate. The third round of topdressing was performed about two weeks later and the amount of fertilizer applied was the same for the second time. After 15 to 20 days, the fourth topdressing was performed with the same amount of fertilizer applied for the first time. Foliar spray fertilizer spraying 0.2% borax aqueous solution during flowering can increase the fruit setting rate. In the whole growth period, 0.3%~0.4% of potassium dihydrogen phosphate solution can be sprayed several times, and about 50 kg of liquid fertilizer can be sprayed, and the yield can be increased by more than 10%.
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