When fertilizing rice fields is best
Putian Fertilizer Base Fertilizer: After picking up in Putian, 20-25 kg per acre of ground smashed and sieved superphosphate is spread on the surface of the plant. Potassium nitride is 7-10 kilograms per mu, and 5-7 kg of ammonium sulfate is added to the paddy fields and earthworms that are less organic, and soil is poorer. The fertilizer is then added to the mud to sow rice seeds. Topdressing: Rice seeds are applied 2-3 times from sowing to raising seedlings. For the first time in the Santian period of Putian, the application of urea was 2.5-3.5 kilograms, or 5-7 kilograms of other nitrogenous fertilizers, and 200 times more water was added before spraying. The second time, 4-7 days before transplanting, the amount of fertilizer was the same as the first time. This time fertilization was called “starting fat†or “rooting fatâ€. Honda Fertilizer Base Fertilizer: Before the last paddy field, first drain the field water, and the dry rice will be treated with 1,000-1500 kg of green manure or 800 kg of pig manure, plus additional ammonium bicarbonate, urea, ammonia water, etc., according to standard fertilizer to split Mushi 20- 25 kilograms of superphosphate Mushi 20-30 kg, potassium chloride Mushi 5-7 kilograms. In the late rice field, 500 kilograms of pig manure was used, and the amount of nitrogen, phosphorus, and potassium fertilizer was 1/4 less than early rice. Then, mix various fertilizers with decomposed organic fertilizers and spread them on the field surface. Then, plowing and plowing are performed so that the fertilizer and the soil layer can be thoroughly mixed and leveled. The tiller fertilizer is generally applied in time after returning green in Putian (not more than 10-15 days after sowing). When fertilizing, put shallow water first and keep the water layer about 1cm deep. In early rice fields, about 10 kg of urea per mu and 13 kg of late rice fields are applied. Fertilize the soil immediately after spreading the fertilizer to mix the fertilizer well with the soil and make contact with the rice root. Panicle fertilizer: In general, young panicles can be applied 25-30 days before earing of early and late rice, which can increase the number of panicles. Mushi urea and potassium nitrate each 5 kilograms, evenly spread on the surface. Late rice fertilizer can be applied by external spraying method, such as using 2% urea solution or 0.1%-0.2% potassium dihydrogen phosphate solution, 150 kg of fertilizer applied mu, in the afternoon the fertilizer solution can be applied to the foliage.