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本试验研究了在贵州中南部的黄棕壤土中建植扁穗雀麦人工草地时 ,不同的播种时期、播种量、播种方法、利用期及不同刈割方式对扁穗雀麦生长发育的影响。其结果表明 :在无灌溉条件下种植扁穗雀麦 ,播期是成败的关键 ,秋旱后播种最好 ;条播稍好于撒播 ,覆土远胜于不覆土 ;播量以 3 0kg/6 6 7m2 为宜 ,其鲜草产量达 6 349 7kg/6 6 7m2 。扁穗雀麦草地生长第一年产量比第二年低 19 4 % ;其越夏率可达到94 7% ,但利用不当则大幅度下降。因此 ,建议在生长第一年留种 ,第二年以始牧高 30cm ,留茬高 6 0cm时开始刈割或放牧利用 ,并在高温伏旱来临之前重施肥料 ,给它一“休养生息”条件 ,既可达高产 ,又有利于越夏
The experiment was conducted to study the effects of sowing date, sowing method, period of use and different cutting methods on the growth and development of flat-headed Bromes in yellow-brown loam soil in central-southern Guizhou. . The results showed that: when planted under a non-irrigated condition, the sowing date was the key to success or failure. The sowing date was the best after autumn drought; the sowing was slightly better than the sowing; the coverage was much higher than that without covering; 7m2 is suitable, the fresh grass yield 6 349 7kg / 6 6 7m2. In the first year, the production of flat-headed broccoli grassland was 19.4% lower than that in the second year. The rate of over-summering reached as high as 94.7%. However, the utilization rate of cereal grass dropped drastically. Therefore, it is recommended to keep the seed in the first year of growth. In the following year, begin cutting or grazing with a height of 30 cm and a height of 60 cm, and re-fertilize before high temperature and drought, giving it a “recuperation” condition , Both high yield, but also conducive to summer