期刊论文

中文

西北农业学报

1004-1389

2011

20

10

64-68

10.3969/j.issn.1004-1389.2011.10.014

30971860:国家自然科学基金 nyctx-00509:国家油菜产业技术体系项目 2009FJ1006-1;2009FJ1006-3: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

在油菜盛花期对其茎叶喷施w=1%的KCl溶液，w=1.17%的K_2SO_4溶液和清水，以探索油菜优质高产栽培新途径。结果表明，与喷施清水相比，喷施w=1% KCl溶液能使油菜角果初期叶片硝酸还原酶活性增强26.9%，植株全氮和全磷量角果初期分别增加6.6%和3.3%，收获期分别增加9.1%和6.7%，氮效率和磷效率分别增加10.0%和1.5%，氮和磷收获指数分别增加21.0%和17.1%，籽粒产量平均增加10.2%。喷施K_2SO_4溶液与喷施清水差异不显著，与喷施KCl溶液差异显著。

The study was conducted to seek a way for obtaining high yield of oilseed rape and to promote the use of nitrogen and phosphorus.In this article,1%（mass fraction） KCl solution was sprayed to the stems and leaves at the fully blooming stage of the crop with spraying 1.17%（mass fraction）K2SO4 solution and clear water for the control.Plant samples were taken at initial siliquing and harvesting stages,soil culture used in this experiment.Results showed that,the average of NRA was increased by 26.9% under the KCl solution treatment compared with...