氮肥运筹对水稻新品种“粳禾205”产量的影响  

Effect of Nitrogen Fertilizer Management on Yield of Rice Variety Genghe-205

作　　者：王宏伟 塔娜 包红霞 李扬 张凤杰 王健 张力焱 WANG Hong-wei;TA Na;BAO Hong-xia;LI Yang;ZHANG Feng-jie;WANG Jian;ZHANG Li-yan(Tongliao Institute of Agriculture and Animal Husbandry,Tongliao Inner Mongolia,028000,China)

机构地区：[1]通辽市农牧科学研究所,内蒙古通辽028000

出　　处：《北方水稻》2024年第5期32-34,共3页NORTHERN RICE

基　　金：内蒙古自治区北方寒地水稻重点实验室;通辽市北方水稻育种重点实验室;内蒙古自治区水稻育种联合攻关(YZ2023004)。

摘　　要：研究氮肥运筹对水稻新品种“粳禾205”产量的影响,试验结果表明,最高苗表现为处理1(200 kg纯氮/hm^(2))最高,达到28.3万株/hm^(2),与其他处理达到显著差异;有效穗以处理1最多,达到24.4万株/hm^(2),与处理2(180 kg纯氮/hm^(2))未达到显著差异,与其他处理达到显著差异;成穗率处理2最高,达到92.0%;株高表现为与氮肥施用量呈正比;处理1穗长达到22.1 cm,与其他处理达到显著差异,每穗达到155.3粒,与处理2未达到显著差异;处理2结实率、千粒重最高,分别为90.5%、25.6 g;产量表现为处理2最高,达到9276 kg/hm^(2)。综合“粳禾205”农艺性状、考种指标及产量表现,180 kg纯氮/hm^(2)为最佳施氮量。The effect of nitrogen fertilizer management on the yield of a new rice variety"Genghe-205"was studied.The results showed that the highest seedling performance of treatment 1(200 kg pure nitrogen/hm^(2))was the highest,reaching 283,000 plants/hm^(2),which was significantly different from other treatments.Treatment 1 had the highest number of available ears(244,000 plants/hm^(2)),which was not significantly different from treatment 2(180 kg pure nitrogen/hm^(2)),but significantly different from other treatments.Treatment 2 had the highest heading rate,reaching 92.0%,and plant height was proportional to the amount of nitrogen fertilizer.Ear length of treatment 1 was 22.1 cm,which was significantly different from that of other treatments,was 155.3 grains per ear,which was not significantly different from that of treatment 2.The highest setting rate and 1000-grain weight of treatment 2 were 90.5%and 25.6 g,respectively.The yield of treatment 2 was the highest,reaching 9,276 kg/hm^(2).According to the agronomic characters,seed index and yield performance of Genghe-205,180 kg pure nitrogen/hm^(2) was the best nitrogen application rate.

关 键 词：水稻 粳禾205 氮肥量 产量 影响 

分 类 号：S511.062[农业科学—作物学]