解放后,由于水稻栽培技术不断改进与提高,产量日增,在密植、深耕、增肥的基础上,出現了大面积的千斤田。但在夺取高产的过程中,倒伏与(?)谷常成为主要的障碍,是当前生产上必須加以研究解决的关键問題。因此我們特于1960年进行防止水稻倒伏与減少(?)谷的研究。本課題中各項試驗大都在本院池塘庙試驗場进行。本項研究中的各个施肥試驗,小区面积均为0.03亩,重复4次;灌溉試驗小区面积为0.2亩,重复3次;其余各試驗,小区面积均为0.02亩,重复3次。各項試驗除处理項目以外,在栽培技术上一律采用:深耕6寸以上;早稻品种为“宁丰”,秧龄30天,4月底前移栽,連作晚稻品种为“老来青”,6月上旬播种,7月底前插完。施肥量早、晚稻每亩各为氮素30斤;密植程度为5×3寸,每穴6～7本;采用五水 After the liberation, due to the continuous improvement and improvement of rice cultivation techniques, the output increased day by day. On the basis of close planting, deep plowing and fertilization, a large area of ​​rice fields appeared. However, in the process of seizing high output, lodging and (?) Valleys often become the main obstacle, which is the key issue that must be studied and solved in current production. Therefore, we conducted a special study in 1960 on preventing rice from falling and reducing (?) Valley. Most of the tests in this project are conducted in our pond temple test site. Each fertilization experiment in this study, the plot area is 0.03 acres, repeated 4 times; irrigation test plot area of ​​0.2 acres, repeated 3 times; the remaining tests, the plot area of ​​0.02 acres, repeated 3 times. In addition to the project to deal with the test, all the cultivation techniques are used: deep plowing 6 inches or more; early rice varieties “Ning Feng”, seedling age 30 days before the end of April transplanted, even for the late rice varieties as “old to youth”, June Early sowing, insert end before the end of July. The amount of fertilizer was as early as late rice 30 acres per acre of nitrogen; close planting degree of 5 × 3 inch, 6 to 7 per hole; using five water