期刊论文

中文

湖南农业科学

1006-060X

2013

23

45-49+53

10.3969/j.issn.1006-060X.2013.23.012

国家科技部科技支撑计划（2012BAD15B04）； 农业部公益性行业（农业）科研专项（201103003）；

本校为第一机构

采用田间小区试验,研究了不同区域配方肥对湖南省洞庭湖流域晚稻生长、养分累积及产量的影响。结果表明:施用大区域配方肥对晚稻生长发育有良好促进作用,株高、分蘖、SPAD值有明显增加;在灌浆-收获期施用大区域配方肥较农民习惯施肥处理的水稻植株氮、磷、钾养分累积分别提高11.68%~3.49%、35.29%~55.01%、19.6%~15.94%;大区域配方肥模式下晚稻产量最高,较农民习惯施肥增产500 kg/hm2,增产率达4.6%。因此湘阴试验区大区域配方肥可代替农民惯用施肥;3种施配方肥处理间相比,在大区域配方肥的基础上,适当降低氮肥用量,并辅以磷、钾调控是完全可行的。

Field plot experiment was carried out to investigate the effect of different regional formula fertilizers on growth, nutrient accumulation and yield of late rice in Dongting Lake region. The results showed that applying regionally common formula fertilizer could promote growth and development of late rice, such as there were significant increase in plant height, tiller as well as SPAD value; in contrast to treatment of conventional fertilization of farmers, the accumulation of N, P and K in rice plant applied with regional common formula fertilizer from filling stage to harvest stage can incre...