摘要
本研究采用植物生长调节剂在缓秧后对水稻进行茎叶处理,结果表明:喷施适当浓度的2,4—D,可增产497.1kg/hm^2,增产率为6.22％,同时加入NAA,成穗数则下降,会降低增产效果甚至减产。增产因素主要是增加了每穗实粒数。本研究证实,水稻移栽后采用化控技术可控下位蘖,促中位蘖,出壮蘖,成大穗,为水稻中位蘖优势利用栽培技术拓宽了适用范围。
In this paper, we treated the stems and leaves of rice with plant growth regulator after rice reviving stage. The result showed that spraying 2,4 - D at an appropriate concentration could increase the yield by 497. lkg/hm2, which is 6. 22% higher than that of control. Adding NAA in same times could reduce ear number and decrease the yield increasing effect even reduce the yield. The main reason of the yield increase is that it increased the grain number per ear. This research concluded that chemical regulation after rice transplant could control the lower -tillers, promotes the medium - tiller, forms strong tillers and big panicles, which enlarged the scope of utilization of medium - tiller superiority of rice.
出处
《河北农业科学》
1998年第1期30-32,共3页
Journal of Hebei Agricultural Sciences
基金
河北省自然科学基金
关键词
水稻
植物生长调节剂
控下位蘖
增产
Rice
Plant growth regulator
Control the lower-tiller
Increase yield
