不同氮肥用量和移栽密度对优质杂交籼稻华浙优261产量的影响  

Effects of Different Nitrogen Application Rate and Transplant Density on Yield of High Quality Indica Hybrid Rice Huazheyou 261

作　　者：包祖达 陈君 丁杨东 戴夏萍 林姿 BAO Zuda CHEN Jun;DING Yangdong;DAI Xiaping;LIN Zi(Seed Transaction Station of Jiaojiang District of Taizhou,Jiaojiang,Zhejiang 318000,China)

机构地区：[1]浙江省台州市椒江区种子事务站,浙江台州318000

出　　处：《中国稻米》2023年第2期111-112,共2页China Rice

摘　　要：为探讨华浙优261在浙江台州作连晚栽培的特征特性和高产栽培技术,设计3种不同密度和3个不同氮肥用量,按单裂区试验处理排列,研究不同氮肥用量和移栽密度对其产量及有关性状的影响。结果表明,华浙优261在椒江区作连晚栽培时,移栽密度1.2万/667 m^(2)、纯氮用量14 kg/667 m^(2)时能获得最高产量559.58 kg/667 m^(2),显著高于其他处理,其穗粒结构为有效穗数19.01万/667 m^(2)、每穗实粒139.05粒、结实率81.49%、千粒重22.03 g。An experiment was designed to study the effects of different planting densities and different nitrogen application rates on the yield of Huazheyou 261 in late season in Jiaojiang District;The results showed that Huazheyou 261 could achieve the highest yields of 559.58 kg/667 m^(2)and ideal panicle grain structure when the transplanting density was 12 000/667 m^(2)and the pure nitrogen application rate was 14 kg/667 m^(2).The panicle grain structure was 190 100/667 m^(2)of effective panicle,81.49%of seed setting rate,139.05 grains per panicle,and 22.03 g of 1 000-grain weight under this treatment.

关 键 词：籼型杂交稻 华浙优261 氮肥 移栽密度 产量 

分 类 号：S511.047[农业科学—作物学]