First, nursery prepared high-quality culture soil from the last three years did not plant in the eggplant vegetables in the ground to dig the soil, it is best to use onions, celery or cereal crops topsoil, as soon as possible dug, dried and broken, with 10 Millimeter sieve stock. The sifted soil will be mixed in a ratio of 1:3 before nursery. In addition, one kilogram of calcium phosphate, 20 kilograms of plant ash, and 0.5 kilogram of diammonium phosphate are applied per 1,000 kilograms of culture soil. Second, field fertilization (1), full base fertilizer. Mainly organic fertilizer, and fully decomposed to reduce the introduction of pathogenic bacteria and eggs. Before ploughing, each farmhouse is fully rotted with 5,000 kg of high-quality farmyard fertilizer, 30 kg of diammonium phosphate, and 100 kg of plant ash. (2) Top-dressing. In the young fruit period, 1,500 kilograms of manure will be applied per mu. If the growth is not good, in the fruit period, Mushi Sanyuan Compound Fertilizer should be 10-15 kilograms, chase after watering; harvesting period should be chasing and rushing, applying top dressing manure every 5-6 days to early morning. Or watering fertilizer in the evening as well. (3) foliar spray fertilizer. Spraying 0.2% borax aqueous solution during flowering can increase fruit setting rate. Throughout the whole growth period, 0.3%-0.4% potassium dihydrogen phosphate solution can be sprayed several times, and about 50 kilograms of sprayed liquid fertilizer can increase production by more than 10%. No more foliar fertilizers were sprayed 15 days before harvest.
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