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通过田间试验,研究氮施用量相同的条件下,有机肥和化肥不同比例(有机肥氮分别占100%、70%、40%、20%和0%),对早稻、晚稻及单季稻施用对水稻产量、品质和氮素吸收的影响。结果表明,有机肥氮为40%、20%、40%时,早稻、晚稻和单季稻产量最高,分别比单施化肥区增8.5%、2.8%和4.6%。有机肥氮在20%～40%之间,稻米品质较佳,比例过高则稻米易碎、垩白上升和蛋白质含量下降。有机肥氮为20%水稻氮素累积量最高,有利于氮素的吸收、利用。
The field experiment was conducted to study the effects of different rates of organic manure and chemical fertilizers (100%, 70%, 40%, 20% and 0% of organic manure respectively) under the same nitrogen application rate. Yield, quality and nitrogen uptake. The results showed that the yields of early rice, late rice and single cropping rice were the highest when organic manure nitrogen was 40%, 20% and 40% respectively, increased by 8.5%, 2.8% and 4.6% respectively than that of single chemical fertilizer. Organic manure nitrogen is between 20% and 40%, and rice quality is better. When the proportion is too high, the rice is fragile, the chalkiness rises and the protein content declines. Organic nitrogen fertilizer is 20% The highest nitrogen accumulation of rice is conducive to nitrogen absorption and utilization.