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1973年6月初,嵊县良种场发现原来生长最好的108号绿肥田早稻发生叶尖退色发黄、稍尖枯焦、生长滞缓现象。以后,这种田块面积逐步扩大,并在场所(农科所)附近一些社、队(如白岳上朱、石璜新沃)也相继出现。但当时找不到什么可和常见病害挂钩的典型病症,故对其原因各有见解,有说是缺氮引起,有说是低温阴雨所致……众说纷纭。这倒底是什么“病”?引起了大家的注意。从6月下旬开始,我们着手对此进行了一些调查。现将初步结果报告如下: 缺钾的诊断缺钾诊断的组织化学鉴定,移植自F.E.贝尔等用于鉴定玉米的一种方法:用两种
Early June 1973, Sheng County, found that the best growing field of the original growth of green rice 108 early leaf tip discoloration occurred yellow, slightly coking, growth stagnation. Later, the area of the plots expanded gradually, and a number of clubs and teams (such as Bai Yue Zhu and Shi Huang Xin Wo) also appeared one after another. However, at that time, we could not find any typical disease that could be linked to common diseases. Therefore, we all have different opinions on the causes of this disease. It is said that nitrogen deficiency is the cause of the disease. What is this “sickness” that has aroused everyone’s attention? Beginning in late June, we set out to investigate some of this. The preliminary results are reported as follows: Diagnosis of potassium deficiency The diagnosis of potassium deficiency by histochemical identification, transplantation from F.E. Bell and other methods used to identify maize: with two