期刊论文

中文

作物研究

1001-5280

2015

6

590-594

10.3969/j.issn.1001-5280.2015.06.04

2011BAD16B01:国家科技支撑计划 2012BAD04B10－01:国家科技支撑计划 2013BAD07B11－02:国家科技支撑计划 2013NK3036:湖南省科技计划 12231:长沙市烟草公司科技项目

本校为第一机构

为明确宁乡烟区烟后晚稻适宜的氮磷钾比例,于2012年开展大田试验,比较研究不同氮磷钾配比对烟后晚稻的产量与养分积累分配的影响。结果表明:本试验条件下（移栽前土壤有效磷、速效钾含量分别为37.56、227.25 mg/kg）,各氮磷钾配比处理间产量差异不显著,以1∶1∶0处理产量略高（8 457.3 kg/hm2）,说明烟草季重施肥条件下,宁乡烟区烟后晚稻可不施磷钾肥。各处理氮磷钾积累量与养分收获指数差异显著,烟后晚稻氮磷钾养分的积累与分配明显受到养分施用量的影响,同时也受到氮磷钾养分配比的显著影响。

To definite the suitable proportion of N,P and K for late rice after tobacco in Ningxiang tobacco planting area, a field experiment was conducted to study the effect of different proportions of N,P and K on yield and nutrients accumula-tion and distribution of late rice after tobacco.The results showed that:Under soil conditions in this experiment (the con-tent of available phosphate and available potassium in soil before transplanting were 37.56 mg/kg and 227.25 mg/kg,re-spectively),the difference in yield among treatments with different propo...