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杂交中稻再生利用,是一项投资少、花工少、产量高,经济效益好的栽培制度。经我区4年试验示范,已初步湿示增产优势和发展潜力。1987～1990年,全区再生稻面积由20亩发展到1.01万亩,单位由40～50公斤提高到325公斤,最高单产437公斤,出现头季稻加再生稻亩产1027.8公斤的典型。其主要经验是: 一、选好茬口组合杂交稻组合以威优64和汕优64为好,前茬以绿肥、油菜、大麦为宜;小麦茬季节紧,再生稻产量不高。汕优63生育期长,头季稻收获迟,再生稻热量不够,产量不稳不高。
Hybrid medium rice recycling, is a less investment, less artificial, high yield, good economic returns to the cultivation system. After 4 years of pilot demonstration in our district, it has initially shown the advantages of production increase and development potential. From 1987 to 1990, the area of ratooning rice in the region was expanded from 20 mu to 10,100 mu, with the unit increasing from 40 to 50 kg to 325 kg and the highest yield 437 kg, showing a typical yield of 1027.8 kg per mu in the first quarter of rice plus ratoon rice. The main experience is as follows: First, the combination of hybrid rice selected crop combination to Weiyou 64 and Shanyou 64 as well, the former crop with green manure, rape and barley is appropriate; wheat crop season tight, ratooning rice yield is not high. Shanyou 63 growth period, the first season harvest of late rice, ratoon rice is not enough heat, the yield is not stable.