期刊论文

中文

西北农业学报

1004-1389

2011

20

4

70-75

10.3969/j.issn.1004-1389.2011.04.015

nyctx-00509:国家油菜产业技术体系项目 863;2006BAD21B03:国家高技术研究发展计划（863计划） 2009FJ1006-1;2009H1006-3:国家科技重大专项 09K049:湖南省高等学校创新平台开放基金

本校为第一机构

采用田间小区试验,研究不同氮磷钾配比对湘杂油763生长和籽粒产量的影响。结果表明,较高的施氮比例(磷钾施用量一致)和较高的施磷比例(氮钾施用量一致)处理油菜长势较好,表现为干物质积累量、株高、分枝数、根冠比和叶绿素含量都较高,并且每角果粒数和千粒质量也较高,最终产量增加;而施钾比例对产量的影响没有一致的规律;供试12种氮磷钾配比处理中,以m(N)∶m(P2O5)∶m(K2O)=1∶0.5∶0.58处理的籽粒产量最高,为1 830 kg/hm2,其次是m(N)∶m(P2O5)∶m(K2O)=1∶0.5∶0.88处理,籽粒产量为1 800 kg/hm2,m(N)∶m(P2O5)∶m(K2O)=1∶0.4∶1.4处理的籽粒产量最低,为1 350 kg/hm2。产量构成因素中单株有效角...

Field experiments were conducted to investigate the effects of different ratios of nitrogen,phosphorus and potassium（NPK） on the growth and yield of Xiangzayou 763.The results showed that,the growth of oilseed rape with the higher nitrogen ratio（the same amount of phosphorus and potassium fertilizer application） and higher phosphorus ratio（the same amount of nitrogen and potassium application） treatments are better,the experiences showed that the dry matter accumulation amount,plant height,branch number,root-shoot ratio and chlorophyll co...