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我县广大贫下中农和革命干部,遵照毛主席“必须把粮食抓紧”的教导,使水稻产量不断增长。但由于育秧期间气温变动大,因而出现部分病苗或死苗,推迟插秧时间,使水稻产量受到一定的影响。为了解决达一问题,我们与贫下中农一起进行调查,初步了解秧苗病害发生的一些情况并提出防治的办法以供参考。一、发病情况和症状。京郊每年4月中到5月初一段时期,气温常有较大波动,同时风
The majority of poor and middle-level peasants and revolutionary cadres in our county abide by the teachings of Chairman Mao “must grasp the grain ” so that the output of rice will continue to grow. However, due to large temperature changes during seedling growth, resulting in some sick or dead seedlings, delayed planting time, the rice yield is subject to certain effects. In order to solve the problem of reaching one, we conducted a survey with poor peasants and middle peasants to get some preliminary information about the occurrence of seedling diseases and put forward the methods of prevention and control for reference. First, the incidence and symptoms. The suburbs of Beijing from mid-April to early May period of time, the temperature is often greater volatility, while the wind