根据水稻需肥规律和肥效期,进行了不同施肥方法的省肥增产试验。每亩施尿素35斤,设5种处理:①不施氮肥;③返青肥10斤,蘖肥20斤,穗肥5斤(对照);③全层施肥10斤,穗肥25斤(深施12厘米);④蘖肥10斤,穗肥25斤(深施12厘米);⑤蘖肥15斤,穗肥15斤,粒肥5斤。返青 According to the rule of fertilizer demand and fertilizer efficiency, fertilization and yield increase experiment of different fertilization methods were carried out. 35 pounds of urea per mu, set five kinds of treatment: ① no nitrogen fertilizer; ③ green tea back to 10 pounds, 20 pounds of tillering, panicle 5 pounds (control); ③ full-layer fertilizer 10 pounds, 25 pounds of panicle 12 cm); ④ 10 kg of tillering fertilizer, spike fertilizer 25 kg (deep facilities 12 cm); ⑤ 15 kg of tillering fertilizer, spike fertilizer 15 kg, granulated fertilizer 5 kg. Turn green