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目前,水稻高产的概念已由亩产500公斤上升到600公斤,而亩产750公斤被视为特高产。近几年来,我们比较注意研究探讨有关特高产水稻的生育特征特性,并在栽培实践中取得了可喜的成果。材料与方法1.试验材料:常规稻红旗选,杂交稻汕优2号和青优早。2.试验田类型:壤土田、沙壤土、洋田,有机质含量2.5—3%。3.栽培方式:插秧、直播。4.栽培方法:低群体栽培法。结果与分析(一)生育特征特性综合分析了13次试验成功的资料,发现下列一些与特高产有关的主要特征特性。1.叶指特征。主要表现在分化期、孕穗
At present, the concept of high yield of rice has risen from 500 kilograms per mu to 600 kilograms, while 750 kilograms per mu has been considered as a particularly high yield. In recent years, we have paid more attention to studying and discussing the characteristics of reproductive development in super-high-yielding rice and have made gratifying achievements in cultivation practices. Materials and methods 1. Test materials: conventional red flag election, hybrid rice Shanyou 2 and green early. 2. Experimental field types: loam soil, sandy loam, oceanic field, organic matter content 2.5-3%. 3. Cultivation: Transplanting, live. 4. Cultivation methods: low-population cultivation method. Results and Analysis (I) Characteristics of Fertility Characteristics A comprehensive analysis of the data of 13 successful experiments revealed the following main characteristics of the characteristics related to the extra-high yield. 1. Leaf refers to the characteristics. Mainly in the differentiation period, booting