一、试验基本情况奥普尔由安徽省农科院植保所提供，试验安排在我场四队3号地进行，面积2公顷，土壤肥力中等，小麦品种为91808，于1997年11月20人工条播。整个试验分三个处理：（1）每公顷用1800毫升奥普尔进行1次性上壤处理；（2）每公顷用奥普尔1500毫升土壤处理加750毫升拔 First, the basic situation of the experiment Opal by the Anhui Provincial Academy of Agricultural Sciences Plant Protection, experimental arrangements in the fourth field in my field on the 3rd, an area of ​​2 hectares, fertile soil, wheat varieties 91808, in November 1997 20 artificial broadcast . The whole experiment was divided into three treatments: (1) one-time soil treatment with 1800 ml Opal per hectare; (2) 1500 ml soil treatment with OPEL per hectare plus 750 ml draft