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经济植物病害基本调查属于“一般性调查”,主要应当做好以下4方面工作。 1.田间调查 首先选能代表不同的环境条件及不同的栽培习惯的点,尽可能选择交通方便的社队;要点面结合进行,调查点设在大队,进行系统的调查。同时经常注意面上的情况。
The basic investigation of economic plant diseases belongs to the “general investigation” and mainly covers the following four aspects. 1. Field survey First select the points that represent different environmental conditions and different cultivation habits and choose the communes and communes that are easily accessible as far as possible. Combine the major points and the survey points are set up in the brigade for a systematic investigation. At the same time often pay attention to the situation on the surface.