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为筛选出五丰优T025在红壤稻田上的合理栽培方式和施氮量,研究了不同栽培方式和施氮量对双季杂交晚稻五丰优T025产量和氮素农学利用率的影响。结果表明:同一栽培方式下,产量以施氮处理显著高于不施氮处理,但施氮处理间无显著差异;氮素农学利用率随施氮水平提高而逐渐下降;同一施氮水平下,产量以人工插秧高于抛秧,氮素农学利用率以抛秧高于人工插秧。五丰优T025适宜的栽培方式为人工插秧,适宜的施氮量为135 kg/hm2。
In order to screen out the reasonable cultivation methods and nitrogen application rate of Niffey T025 on red rice paddy fields, the effects of different cultivation methods and nitrogen application rates on the yield and N use efficiency of N5F5T025 in late season hybrid rice were studied. The results showed that under the same cultivation method, the yield of N application was significantly higher than that of N application, but no significant difference was found between N application treatments. The N use efficiency of N application decreased with the increase of N application rate. Under the same nitrogen application rate, The output of artificial transplanting is higher than that of throwing transplanting. Nitrogen utilization rate of agricultural transplanting is higher than artificial transplanting by throwing transplanting. Ng Fung Yu T025 suitable for artificial cultivation of transplanting, suitable nitrogen rate of 135 kg / hm2.