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1996年早晚两季采用两个水稻品种试验比较了不同施氮水平下水育秧和旱育秧的产量及产量构成差异.统计分析结果表明,旱育秧比水育秧每hm2增产稻谷293.0~729.0kg,增产幅度为4.9%~12.6%.增产的主要原因是单位面积有效穗数显著增加.在旱育稀植条件下,植株高度明显增高,有效分蘖期提前结束.但其他产量性状未见有明显增长.
Two rice varieties trials were conducted in morning and evening in 1996 to compare the differences in yield and yield between watering and drought nurseries under different nitrogen levels. Statistical analysis showed that drought-tolerant seedlings increased 293.0-729.0 kg of rice per hm2 of seedlings per hm2 and the yield-increasing rate was 4.9% -12.6%. The main reason for the increase is the significant increase in the effective panicle per unit area. Under the conditions of dry cultivation and sparse planting, the plant height is obviously increased, and the effective tillering stage ends prematurely. However, no significant increase in other yield traits.