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水稻半旱式栽培是改良冷、烂、锈田,提高单产的有效措施。1989年铜仁市推广半旱式栽培2866.4亩,亩产比常规栽培增产39.5～81.6％。其中,48.8亩示范田增产58.5～92.6％,经济效益十分显著。主要有以下几点体会: 1.选用高产抗病的杂稻组合汕优63。实践证明,半旱式栽培选用高产抗病杂稻组合,是提高增产幅度
Semi-arid rice cultivation is an effective measure to improve cold, rotten and rusty fields and improve yield. Tongren City in 1989 to promote semi-dry cultivation of 2866.4 mu, yield per mu than conventional cultivation yield 39.5 ~ 81.6%. Among them, 48.8 mu demonstration field yield 58.5 ~ 92.6%, the economic efficiency is very significant. The main points are the following experience: 1 selection of high yield and disease resistance hybrid rice combination Shanyou 63. Practice has proved that semi-dry cultivation of high-yielding disease-resistant hybrid rice combination is to increase yield