摘要
本试验采用灰色关联度分析对16个扁穗牛鞭草和白三叶混播处理的生产性能、饲草质量和群落稳定性等方面进行综合评价。结果表明,通过4年研究发现,在16个混播处理中,处理11(年刈割6次,施氮量为0.9 t/hm2.a,白三叶和扁穗牛鞭草的混播比例为1∶1)的综合性状表现最好,为最佳建植管理模式。在该处理中,两种混播牧草能够在较长时间内共存,维持较高的产量和质量并有效抵御杂草的入侵,可以为其在长江中下游地区的推广提供依据。
In the trial,16 mixed groups of whip grass and white clover were studied in the changes of yield,quality and factors of community with the analysis of grey correlation degree. After 4 years research （from 2003 to 2006） ,The results showed that treatment 11 was the best mixed group after synthesizing evaluation From productivity, quality and suitability. Cutting 6 times per year,application N 0.9 t/hm2 and ratio of white clover to wipe grass is 1：1 ,was optimal model for comprehensive management in mixturo pasture of wipe grass and white clover, it was suggestion the management technique could using at the area along Changiiang River.
出处
《西南农业学报》
CSCD
2008年第4期1094-1099,共6页
Southwest China Journal of Agricultural Sciences
基金
四川省农作物“十五”攻关项目(002248)
四川省科技厅应用基础项目05JY029-035-2
关键词
扁穗牛鞭草
白三叶
混播
灰色关联度
whip grass
white clover
mixture
grey correlation degre
