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连续 5a在异地采用早稻品种 (组合 ) 13个与晚稻品种 (组合 ) 8个 ,实施轻型优化栽培技术体系 ,早稻轻型优化栽培 5a的平均单产为 730 5kg/hm2 ,比常规栽培的单产 6 2 2 5kg/hm2 增产 10 80kg/hm2 ,增产 17.35 % ;晚稻轻型优化栽培的产量为 770 2kg/hm2 ,比常规栽培的单产 6 781kg/hm2 增产 92 1kg/hm2 ,增产 13.5 8% .早稻轻型优化栽培的成本为 45 48元 /hm2 ,比常规栽培的成本 5 2 0 7元 /hm2 降低 6 5 9元 /hm2 ,降低成本 14.49% ;晚稻轻型优化栽培的成本为 485 9元 /hm2 ,比常规栽培的成本 6 0 80元 /hm2 降低 12 2 1元 /hm2 ,降低成本 2 5 .12 % .轻型优化栽培比常规栽培增产与降低成本均达极显著水平 (P <0 .0 0 1) .
For the fifth consecutive year, 13 early-rice varieties (combinations) and 8 late-rice varieties (combinations) were used in different locations to implement the light-weight optimization cultivation technique system. The average yield of light-intensity optimized cultivation 5a in early rice was 730 5kg / hm2, 5kg / hm2 increased yield 10 80kg / hm2 and increased yield 17.35%. The yield of late rice optimized cultivation was 770 2kg / hm2, yielding 92 1kg / hm2 and 13.58% higher yield than that of conventional cultivation 6 781kg / hm2. The cost was 45 48 yuan / hm2, which was 659 yuan / hm2 lower than the cost of 527 yuan / hm2 and the cost was 14.49% lower than that of conventional cultivation. The cost of light optimization cultivation of late rice was 485 9 yuan / hm2, The cost of 6080yuan / hm2 was reduced by 1221yuan / hm2, and the cost was reduced by 12.512%. The light-optimized cultivation had a significant level of increase (P <0.01) than the conventional cultivation.