论文部分内容阅读
为了摸准草木樨适宜割收时期,省风砂地改良利用研究所于1978～1980年进行了分期割草试验。越冬前割收,留茬高2寸,割后不培土。试验结果表明,在9月1 日～10月13日期间,草木樨割得越早,产草量越高,返青率越低;割草越晚,产草量越低,返青率越高。霜前割草(9月1日～22日)的鲜草产量,比霜后割草(10月3日～13日)的每亩多收草358,7斤,返青率却降低51.6％。
In order to find out the suitable cutting time of vegetation, the provincial wind sand improvement and utilization research institute carried out the staged mowing experiment from 1978 to 1980. Harvest before winter harvest, stubble height 2 inches, cut after the soil is not cultivated. The results showed that during the period from September 1 to October 13, the earlier the vegetation was cut, the higher the grass yield was, the lower the greening rate. The later the mowing, the lower the grass yield was and the higher the greening rate was. Fresh grass production before frost (September 1 to 22) was more than 358,7 kg per acre after mowing the grass (October 3 to 13), but the greening rate was reduced by 51.6%.