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夏玉米需肥(吸收量)规律的研究,国内外已屡见报道,其结论已基本趋于一致。但高产供肥的研究,因其受综合因素制约,系统报道甚少,笔者自1979～1984年对167块棕壤土亩产千斤以上的夏玉米高产田进行了系统的观察研究,对不同土壤养分含量提出了相应的供肥指标经验公式,从而实现了供需平衡,为高产、稳产、低成本奠定了土壤肥力基础。材料与方法自1979年开始,陆续选定掖县路旺乡河崖,夏邱镇宋家,过西乡武家,西由镇后邓、光明、王贾,苗家乡吕村,莱州镇西岭
Summer corn fertilizer (absorption) of the law, both at home and abroad have been reported, the conclusion has basically the same. However, the research on high-yield and high-yield fertilizers has been systematically observed and studied on 167 high-yielding summer maize fields with brown soil per acre from 1979 to 1984 due to its comprehensive factors and little systematic reports. The effects of different soil nutrients Content of the corresponding empirical formula for the index of fertilizer, so as to achieve the balance between supply and demand, laid the foundation for soil fertility for high yield, stable production, low cost. Materials and methods Since 1979, one after another selected Ye County Road Wangxiang Cliff, Xia Qiuzhen Song, Xixiang Wu Jia, West by the town after Deng, Guangming, Wang Jia, Miao village Lvcun, Laizhou town Xiling