期刊论文

The effect of nitrogen fertilizer management on the yield and nitrogen utilization of ordered machine throwing early rice

中文

湖南农业大学学报(自然科学版)

1007-1032

2024

50

1

1-8

10.13331/j.cnki.jhau.2024.01.001

国家水稻产业体系岗位专家项目(CARS-01-27)。

本校为第一机构

以常规早稻品种湘早籼24号为材料,于2021—2022年开展大田试验,设3个氮肥水平,即120 kg/hm2(N1)、150 kg/hm2(N2)和180...展开更多 以常规早稻品种湘早籼24号为材料,于2021—2022年开展大田试验,设3个氮肥水平,即120 kg/hm2(N1)、150 kg/hm2(N2)和180 kg/hm2(N3),4个氮肥分配处理T1、T2、T3、T4,基肥、分蘖肥、穗肥的施用比例分别为1∶1∶1、0∶1∶1、1∶0∶1、1∶1∶0,以生产推荐施肥CK(施氮量120kg/hm2,基肥、分蘖肥、穗肥的施用比例为5∶3∶2)和零氮处理(N0)为对照,研究施氮量和氮肥分配对有序机抛早稻产量、生长特性及氮素利用的影响。结果表明:N3、N2、N1的早稻平均产量依次降低,N1的平均产...

This study investigated the effects of nitrogen fertilizer application rate and distribution on the yield,growth characteristics and nitrogen utilization of ordered machine throwing early rice.Field experiments on conventional early rice variety Xiangzaoxian 24 were con...MORE This study investigated the effects of nitrogen fertilizer application rate and distribution on the yield,growth characteristics and nitrogen utilization of ordered machine throwing early rice.Field experiments on conventional early rice variety Xiangzaoxian 24 were condu...