期刊论文

Effects of Nitrogen Fertilizer Reduction and Appl ication of Nitrogen Fertilizer as Base Fertilizer on Rapeseed Yield and Nitrogen Absorption

中文

农业科学与技术(英文版)

1009-4229

2013

14

1

116-121+126

10.3969/j.issn.1009-4229(e).2013.01.026

Supported by China Modern Agriculture Research System （CARS-13）； Jiangxi Technological Innovation Team （20115BCB29020）； Innovation Funds of Jiangxi Academy of Agricultural Sciences （2011CJJ012）~~；

本校为第一机构

[目的]研究氮肥减量与底施运筹对油菜产量及氮素吸收利用的影响.[方法]以“赣油杂5号”为试验材料,固定氮(N):磷(P205)∶钾(K20)比例为1∶0.5∶0.5,设置氮肥减量(150 kg/hm2)和推荐施氮(180 kg/hm2)2个施氮水平,底施比例100％、80％和60％的不同处理,采用田间试验研究氮肥减量与底施运筹对油菜产量及氮素吸收和利用的影响.[结果]在相同氮肥底施运筹条件下,推荐施氮处理油菜株高、茎粗、主花序长、有效分枝数、单株角果数、每角粒数和生物产量均显著高于氮肥减量施肥处理；推荐施氮处理油菜籽粒产量和经济效益在中等基础肥力下均显著高于氮肥减量施肥处理,在高基础肥力下虽略高于氮肥减量施肥处理...

[Objective] The aim was to research effects of N fertilizer reduction and application of N fertilizer （as base fertilizer） on rapeseed yield and N absorption. [Method] Based on Ganyouza No.5, the ratio of N, P2O5 andK2O was set at 1：0.5：0.5; N fertilizers were set involving reduced quantity at 150 kg/hm2 and preferred quantity at 180 kg/hm2; 100%, 80% and 60% of N fertilizers were applied as base fertilizers in the test respectively. In general, field tests were conducted to explore effects of reduced N fertilizer and application of N ferti...