期刊论文

中文

湖南农业大学学报(自然科学版)

1007-1032

2011

37

6

586-591

10.3724/SP.J.1238.2011.00586

国家油菜产业技术体系建设项目（nyctx-00509）； 国家“863”计划项目（2006BAD21B03）； 湖南省重大专项（2009FJ1006-1,2009FJ1006-3）； 湖南省高校创新平台开放基金项目（09K049）；

本校为第一机构

采用田间小区试验，研究了种植密度和施肥水平对湘杂油763氮磷钾养分吸收和籽粒产量的影响。结果表明：在相同种植密度条件下，高施肥处理的产量明显高于低施肥处理，且4个施肥水平间产量的差异达到显著或极显著水平；高施肥而种植密度小和低施肥而种植密度大的处理产量相对较高。所设的24个处理中，产量最高为2696.15 kg/hm~2(施N肥180 kg/hm~2、施P肥90 kg/hm~2、施K肥158 kg/hm~2、种植密度为7.5×10~4株、hm~2)。施肥量高的处理氮磷钾积累量相对较高，其变化趋势和产量的变化趋势基本一致，而且氮磷钾积累量与产量的相关性达到极显著水平；在盛花期和收获期氮素和磷素含量呈先增后减的趋势，...

Field experiments were conducted to investigate effects of different planting densities and fertilizer application levels on N, P, K （nitrogen, phosphorus, potassium） uptake and seed yield of rapeseed variety Xiangzayou 763.The results showed that, yield of high fertilizer application treatment were significantly higher than that in the low fertilizer application treatment under the same planting density, and there were significant or highly significant differences in seed yield among the 4 fertilizer application treatments. Seed yield in 2 t...