期刊论文

中文

湖南农业科学

1006-060X

2016

4

19-23,26

10.16498/j.cnki.hnnykx.2016.04.007

国家科技支撑计划项目（2013BAD07B11）；

本校为第一机构

为破解南方稻田灌溉用水和肥料施用不合理以及资源紧缺等一系列问题,通过水稻半固态播种与泡田整地播种的对比试验,研究水稻前期灌溉用水量及肥料不同施用方式对水稻生长性状的影响。结果表明：与泡田整地播种相比,水稻半固态播种拓宽了破胸稻种的吸水途径,提高了肥料利用效率,避免了有害环境因子的直接作用,有利于水稻出苗及壮苗的形成;同时,节约灌溉水资源2 250 m3/hm2,提高水分利用率;尿素施用减少20.75 kg/hm2,利用率增加11.06%;复合肥施用减少78.27~88.79 kg/hm2,利用率增加16.31%~18.50%;显著减少无效穗,增加有效穗,提高成穗率;显著增加每穗实粒数,提高每穗穗重和结实率;实现水稻增产,增幅...

In order to solve a serious of problems of unreasonable use of irrigation water, fertilizer and resource shortages in southern paddy, research the effect of different irrigation water consumptions and fertilizer application methods on rice growth traits by the contrast test of semi-solid rice sowing and steeping ifeld tillage sowing. The results showed that: compare with the steeping ifeld tillage sowing, semi-solid rice sowing broaden the water absorption pathway of the breaking chest rice, improve the fertilizer use efifciency, avoid the direct effect of harmful environmental factors, beneif...