免耕栽培对桂西北稻区水稻生长及产量的影响

Effects of in No Tillage for Rice Growing and Yield in Rice Production Area of Northwestern Guangxi

为探讨免耕栽培对桂西北稻区水稻各生育性状即水稻生育期、水稻分蘖状况、水稻有效穗数、穗长、穗粒数、千粒重以及产量的影响。2010年在南丹县开展了不同耕作方式对水稻生长与产量影响的试验研究,试验结果表明,免耕栽培促进水稻分蘖,缩短生育期,有利于水稻的早生快发,较常规翻耕栽培相比,株高、有效穗数、每穗粒数、结实率、千粒重、理论产量分别提高0.57%、0.49%、0.96%、0.11%、0.18%、1.72%、1.90%,水稻增产1.90%,产值增加1.90%,净利润提高14.11%。

This paper is aimed to discuss the effects of no tillage for rice growing character in rice production area of northwestern Guangxi, that the growth period of rice, tillering, Effective panicle number, panicle length, panicle numbers, 1000-grain weight and yield. In 2010, to carry out studying for rice growth and yield of different tillage practices in Nandan County. results showed that no-till cultivation promote to tiller, reduce period of the growth, make for growing and heading, compared with conventional tillage, height, Effective panicle number, grain number per paniclel seed setting rate, 1000-grain weight, theoretical yield increased 0.57%, 0.49%, 0.96%, 1.06%, 0.11%, 0.18%, 1.72%, 1.90%, rice yield increased 1.90%, the output value increased to 1.90%, rate of net profit increased 14.11%.