阳树英,王浩,邹应斌,李奎,靳国靖,吕广动?.氮硫互作对五常香稻产量和氮肥利用率的影响[J].湖南农业大学学报:自然科学版,2020,46(2):.
氮硫互作对五常香稻产量和氮肥利用率的影响
  
DOI:
中文关键词:  水稻  稻花香2号  氮硫互作  产量  产量构成因子  氮肥增产效应  氮肥利用率
英文关键词:rice  Daohuaxiang 2  nitrogen and sulfur fertilizer combinations  yield  yield components  the yield- increasing effect of nitrogen fertilizer  nitrogen use efficiency
基金项目:国家自然科学基金项目(31471446, 30971724)
作者单位
阳树英,王浩,邹应斌,李奎,靳国靖,吕广动? 1.湖南农业大学生物科学技术学院湖南 长沙 4101282.南方粮油作物协同创新中心湖南 长沙 410128 
摘要点击次数: 29
全文下载次数: 0
中文摘要:
      以稻花香2号为材料,设置3个氮(N)水平N1 (0 kg/hm2)、N2 (90 kg/hm2)、N3(180 kg/hm2)和3个硫(S)水平S1(0 kg/hm2)、S2(45 kg/hm2)、S3(90 kg/hm2),配制9个氮硫互作组合,进行完全随机试验,研究不同施肥处理对五常香稻产量构成及氮肥利用率的影响。结果表明:增施氮肥可显著提高有效穗数和每穗总粒数;增施硫肥可显著提高结实率和千粒质量;9个氮硫互作处理中,N2S2的实际产量(7 583 kg/hm2) 最高,较N1S1增产56.3%,氮肥利用率为60.0 kg/kg;低氮高硫的N2S3和高氮低硫的N3S2均浪费氮肥,增加水稻生产成本,增加环境污染风险。综合分析,90 kg/hm2施氮量和45 kg/hm2施硫量是五常香稻生产较理想的氮硫互作施肥模式。
英文摘要:
      In order to find the best nitrogen(N) and sulfur(S) fertilizer combinations to increase the yield of Wuchangxiangdao and improve the nitrogen use efficiency, the aromatic rice named Daohuaxiang 2 was selected, and 9 nitrogen and sulfur fertilizer combinations,N1S1, N1S2, N1S3, N2S1, N2S2, N2S3, N3S1, N3S2, N3S3, were selected as 9 treatments. These treatment were grouped to 3 levels of nitrogen as N1 (0 kg/hm2), N2 (90 kg/hm2), N3(180 kg/hm2) and 3 levels of sulfur as S1(0 kg/hm2), S2(45 kg/hm2), S3(90 kg/hm2) by completely random design. The results showed that: (1)Nitrogen could increase the effective panicles and the number of the spiketlets per panicle; (2) with sulfur application, it can increase setting rate and the 1000-grain weight significantly; (3) Among the 9 treatments, N2S2 could achieve the most highest rice yield of 7 583 kg/hm2 , the highest yield-increasing effect of nitrogen fertilizer,56.3% and the highest nitrogen use efficiency, 60.0 kg/kg. Thus, the treatment N2S2 is the most ideal fertilizer application of the N×S interactions in Wuchang city for the cultivar of Daohuaxiang 2.
查看全文  查看/发表评论  下载PDF阅读器
关闭
Copyright © 2008 《湖南农业大学学报》自然科学版 地址:湖南 长沙市 芙蓉区 
邮编:410128 电话:0731-84618035 0731-84617599 0731-84673730 E-mail: zkb4618035@hunau.net  京ICP备09084417
分享按钮