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水稻纹枯病田间菌核残留量是预测预报的重要依据,现行水稻纹枯病菌核残留量调查是按全国农作物病虫测报站统一拟定的方法进行的,即在春耕前,每块田5点取样,每点取1个样方(33.3×33.3×1cm/方),将样方内的田土连同冬作物残渣一并挖起,分别放入水缸内加水搅动,待菌核浮至水面捞取计数。该方法劳动强度大,费工费时,由于人力所限,很难较准确地掌握大面积菌核残留量多少,影响了测报的准确性。笔者在多年的测
Rice sheath blight field sclerotia residual quantity is an important basis for forecasting and forecasting, the current investigation of the sheath blight of rice sheath blight is carried out according to the unified method of national crop pest forecasting station, that is, before spring plowing, each field 5 Point sampling, each sampling point 1 (33.3 × 33.3 × 1cm / square), the plots of the soil together with the winter crop residues were dug, respectively, into the tank with water to stir until the sclerotia floating to the water Fetch the count. The labor-intensive method, labor-intensive and time-consuming, due to human limitations, it is difficult to more accurately grasp the large area of the number of sclerotia residue, affecting the accuracy of the report. I measured in many years