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以籼型单季超级杂交稻中浙优1号为材料,研究水稻强化栽培氮肥管理对产量与氮素利用率的影响。结果表明:水稻强化栽培与常规栽培对照比较,增产达11.1%-15.2%,氮肥回收率比对照高5.3%~26.9%,农学利用率比对照高67.2%~92.2%,生理利用率比对照高6.0%~80.5%。因此,在水稻生产上应用水稻强化栽培可以提高氮肥的利用,降低氮肥在环境中积累及对环境造成污染。此外,本文对水稻强化栽培下氮肥管理的高产机理进行了探讨。
With the indica single-season super hybrid rice Zhongzheyou 1 as the material, the effects of nitrogen management under enhanced rice cultivation on yield and nitrogen use efficiency were studied. The results showed that the yield of rice was 11.1% -15.2% compared with that of conventional cultivation. The recovery rate of nitrogen fertilizer was 5.3% -26.9% higher than that of CK, and the utilization rate of agronomy was 67.2% -92.2% higher than that of CK. The physiological utilization rate was higher than that of CK 6.0% ~ 80.5%. Therefore, the application of rice fortification in rice production can increase the utilization of nitrogen fertilizer, reduce the accumulation of nitrogen fertilizer in the environment and cause pollution to the environment. In addition, the paper discussed the high yield mechanism of nitrogen management under rice fortification.