摘要
选择当地有代表性、不同轮作方式的地块 ,采用定点定期系统调查的方法 ,对大豆重迎茬种植与胞囊线虫病发生关系进行了研究 ,结果表明 ,随着重茬年限的增加 ,单株胞囊数显著增加 ,从而导致相应的大豆生长发育受抑制 .大豆根瘤数、侧根数降低 ,地上部鲜重下降 ,营养源供应不足 ,使株荚数、株粒数、百粒重显著减少 ,导致减产 17 5 %～ 40 92 %.采用大豆种衣剂 2 6号 ,1号和拌种剂HF -Ⅰ号和HF -Ⅱ号拌种 ,防效均在75 %以上 。
This paper deals with some results from the field on behalf of the distinct rotation method.It is occurred of soybean cyst nematode because the continuous cultivation and in one year crop rotation.The notable increased number cysts per plant along with the year increased continuous cultivation,check the grouth of soybean.The number of root,number of root nodule and greenness weight based on the control lower.The number pods per plant,number of seed per plant and 100-seed weight based on the control notable lower.The yields of soybean on the control lower 17.5%～40.92%.The seed dressing by wrop clothes of seed soybean No.26,No.1 and combined seed dressing of soybean HF-No Ⅰ,HF-No Ⅱ.The efficiency for controlling the cyst nematode of soybean were over 75% all.
出处
《内蒙古民族大学学报（自然科学版）》
2001年第1期39-42,共4页
Journal of Inner Mongolia Minzu University：Natural Sciences
