期刊论文

中文

浙江农业学报

1004-1524

2012

24

1

99-104

10.3969/j.issn.1004-1524.2012.01.020

nyctx00509:国家油菜产业技术体系项目 2006BAD21B03:国家高技术研究发展计划（863计划） 2009FJ10061,2009 FJ10063: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

在田间条件下,研究了不同氮磷钾配比对‘湘杂油763’养分吸收、碳氮代谢产物和籽粒产量的影响。结果表明,游离氨基酸总量、可溶性糖含量和总量随施氮量的增加而增加,而磷钾肥对可溶性糖和游离氨基酸的影响没有表现出一致规律。随着氮肥和磷肥施用量的增加,氮磷积累量和籽粒产量都呈增加的趋势,而磷钾肥对其影响不及氮肥有规律。随着施肥量的增加,氮肥和钾肥利用率都呈减少的趋势,而磷肥利用率呈先增加后减少的趋势。在供试7种氮磷钾配比中,以处理E(N∶P_2O_5∶K_2O=1.00∶0.5∶0.5)的籽粒产量最高(2 231 kg.hm~(-2)),其次是处理K(N∶P_2O_5∶K_2O=1.00∶0.43∶0.57),籽粒产量为2 065 kg.hm~(-2)...

A field experiment was conducted to investigate the effects of different NPK ratios on nutrients absorption,carbon and nitrogen metabolism,and grain yield of Xiangzayou 763 rapeseed.The results showed that the total amounts of free amino acids as well as the contents and total soluble sugar increased with increasing N levels,but there was no consistent effect for P and K levels on them.NPK accumulation and grain yields of rapeseed were increased with increasing N and P levels,but the influence of K was not obvious.Fertilizer use efficiencies of...