种植方式与气象因子对冬闲田种植黑麦草产草量的影响

目的]研究气象因子对冬闲田种植黑麦草产草量的影响。方法]为探索贵州省冬闲田种植黑麦适宜区域，以产草量为因变量，探讨在不同种植方式下，气象因子对黑麦草产量的影响，结果]钻石 T总草产量高于特高，条播效果优于撒播，翻耕效果优于免耕；极端高温、低温与产草量呈负相关，而相对较高的日均温、降雨量，较多的日照时数有利于提高产草量。相对湿度、无霜期对产草量作用不明显。结论]生产中应选择极端气温较少的区域和地点种植黑麦草。

Effects of Planting Pattern and Meteorological Factors on Yield of Ryegrass Planted in Fallow Fields

The aim was to research effects of meteorological factors on yield of ryegrass in fal ow field in winter. Method] With grass yield as a dependent variable, effects of meteorological factors on ryegrass yield were explored by differ-ent planting methods. Result] The yield of Zuanshi T was higher than that of Tegao; strip sowing performed better compared with dispersedly sowing and plough-ing better than no-til age; extremely high and low temperatures showed negative correlation with grass yield; higher daily average temperature, rainfal and sunshine hour improved grass yield; relative humidity and frost-free period had insignificant effects on yield. Conclusion] The region with less extreme temperatures should be chosen as the site for growing ryegrass.