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小麦“叶龄指标促控法”的提出,给小麦的生产带来了很大的方便。而更简便主动、有针对性地使用其方法所需要解决的问题之一,就是叶龄的预报。为了解决这个问题和在不进行田间工作的情况下掌握小麦返青后的发育状况,以及预报生育期,本文在过去已有的基础上,试图通过对不同肥力条件下、不同密度间春生叶的生长及大气温度的平行对比观察,分析了叶片生长与温度的关系,浅述了建立叶龄预报模式的依据,提出了叶龄的预报方程式及预报方法的简单应用。
Wheat “leaf age index promoting control law” put forward to the wheat production has brought great convenience. And more simple and proactive, targeted use of its methods need to address one of the problems is that Ye Ling’s forecast. In order to solve this problem and to grasp the developmental status of wheat after returning to green without field work, and to forecast the growth period, this paper tries to study the growth of spring leaf under different fertility and density And the comparison of atmospheric temperature, the relationship between leaf growth and temperature was analyzed. The basis for establishing the leaf age prediction model was briefly discussed, and the leaf age prediction equation and the simple application of the prediction method were proposed.