摘要
采用Dn— 311近似饱和最优设计试验 ,对A、B、C不同比例混配防治春小麦麦茎蜂和条锈病的防效再次验证。结果表明 ,A、B、C剂量取 488— 5 19ml、5 2 5— 5 6 3ml、17— 2 3ml时虫病防效均≥ 80 %,最高达 93.8%和 98%;保产率≥ 10 %,千粒重提高率≥ 5 %。
Test was applied by staturated optimum designe.Spring wheat's Yellow rust and European wheat stem sawfly were controlled by mixed insecticide variety proportions of A,B,C.The results showed,Effect of controlling≥80%,the most are 93.8%and 98%,when doses of A,B,C were applied with 488—519ml·ha -1,528—563ml·ha -117—23ml·ha -1.The yield assured ratio≥10%.Thousand kernel weight was increased≥5%.
出处
《青海农林科技》
2003年第3期52-55,共4页
Science and Technology of Qinghai Agriculture and Forestry
