不同刈割茬次间苎麻饲用产量与品质的研究

The Study of Forage Yield and Quality of Ramie among Different Cutting Times

为探讨刈割茬次对苎麻饲用产量和品质的影响,研究以饲用苎麻"中饲苎1号"和纤饲兼用苎麻"中苎2号"为试验材料,进行了一年内不同刈割茬次的测产和营养分析等工作。结果表明,在不同茬次间的产量性状中,干鲜比的变异幅度最大;而在不同茬次间的饲用品质上呈现"前两次优于后4次"的变化规律,且不同茬次间,茎的饲用品质变异幅度大于叶。在实际苎麻生产过程中,可利用干鲜比估测苎麻植株饲用价值。

In order to investigate the influences of different cutting times on the forage yield and quality of ramie, the fodder ramie “ Zhongsizhu No. 1 ” and forage fiber ramie “ Zhongzhu No. 2” were chosen as the test materials in this paper, and the yield traits and nutritional qualities of the ramie cut in different times were also analyzed. The results showed as follows ：The variation range of dry - fresh ratio was the largest one among the yield traits in different cutting times. Nonetheless, among the six harvests in one year, the nutritional quality of ramie cut in the first two times was better than the latter four times. And take the forage quality as example, the variation range of stems was greater than leaves for the ramie among different cutting times. In summary, it is a good method to adopt the dry - fresh ratio to evaluate the feeding quality of plants in the practical production.