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以水稻新品种吉粳513为供试品种,采用二因素裂区试验设计,研究不同氮肥用量(纯N 150、200、250 kg/hm~2)和栽插密度(33.33万、22.22万、16.67万穴/hm~2)对水稻产量和品质的影响。结果表明:施氮量和栽插密度显著影响吉粳513的有效穗数,而对穗实粒数、千粒重无显著影响。在施氮量为200 kg/hm~2和插秧密度为22.22万穴/hm~2时,水稻产量最高(9.43×103kg/hm~2),显著高于其他处理;同时,在此条件下,降低了垩白粒率和垩白度,提高了蛋白质含量,其品质达到最佳。
A new rice variety, Jijing 513, was used as the test variety. The two-factor split trial design was used to study the effects of different N rates (pure N 150,200,250 kg / hm ~ 2) and transplanting density (333,300,222,200, 16.67 Effects of 10,000 Hg / hm ~ 2 on Yield and Quality of Rice. The results showed that nitrogen application rate and transplanting density significantly affected the effective spike number of Jijing 513, but had no significant effect on the number of spikelets and 1000-grain weight. The highest yield of rice (9.43 × 103 kg / hm ~ 2) was obtained at 200 kg / hm ~ 2 and 222,200 hm ~ 2 of planting density, which was significantly higher than other treatments. Reduce the chalky grain rate and chalkiness, improve the protein content, its quality to achieve the best.