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84年大新、支口、蔡集乡农技站应用EF于小麦生产,效果较显著,现将试验情况小结如下: 一、不同浓度应用效果试验共分50、75、100PPM三个浓度和喷清水,以不喷作对照,小区2.5厘和0.5厘。大新、支口设三次重复,蔡集设两次重复。大新、支口供试品种郑州741,蔡集为济南13号。大新在拔节、孕穗期各喷一次,支口在拔节期喷第一次,七天后喷第二次,蔡集在抽穗时喷
84 years Daxin, branch mouth, Cai Jixiang agricultural station EF application of wheat production, the effect is more significant, the test is summarized as follows: First, the application of different concentrations of the effect test is divided into 50,75,100 PPM three concentrations and spray Water, not sprayed as a control, 2.5% and 0.5% district. Daxin, branch mouth set three times to repeat, set twice set Cai. Dah Sing, branch test varieties Zhengzhou 741, Cai Ji Jinan on the 13th. Dah Sing at jointing, booting each spray once, branch mouth in the jointing period spray the first time, after seven days spray the second time, Cai set at heading