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有机肥与化肥的适当配比用量,是当前生产中需要解决的一个问题.两者配比适宜,不仅可以取得高产稳产,而且对经济用肥和土壤肥力的维持与提高有一定作用.为此进行了三年定位试验.一、试验设计和方法从1981年早稻开始,双季稻连作,冬季休闲,1983年晚稻结束.肥料用量配比处理:(1)不施肥(CK);(2)早稻亩用紫云英鲜草1,500斤,晚稻亩用干稻草300斤;(3)处理(2)+化肥N10斤、P_2O_5 5斤、K_2O10斤;(4)处理(2)+化肥N20斤、P_2O_5 10斤、
The appropriate ratio of organic fertilizer to chemical fertilizer is a problem that needs to be solved in the current production.The suitable proportion of the two can not only achieve high and stable yield but also play an important role in the maintenance and improvement of economical fertilizer and soil fertility.To this end, Three-year positioning experiment was carried out.First, experimental design and method began with early rice in 1981, with double cropping rice continuous, winter leisure and late rice ending in 1983. Fertilizer dosage ratio treatment: (1) no fertilization (CK) 1,500 kg of fresh shiitake grass for early rice and 300 kg of dry straw for late rice; (3) Treatment of (2) +10 kg of chemical fertilizers, 5 kg of P 2 O 5 and K 2 O 10 kg; (4) Treatment of 20 kg of chemical fertilizers, P_2O_5 10 pounds,