农作物的品种纯度,是良种分级定等的一个经济性状指标。国营农场的各级种子田地块多,面积大,按照常规,种子田的纯度检验,例如小麦,往往都是赶在收获之前匆匆进行,很难作到按正规要求的以对角线采点,选取代表性样本束,带回室内进行分析检验。加上入力、物力、交通方面的条件所限,往往达不到预期的 The purity of varieties of crops, is an indicator of economic traits such as seed rating. State farms at all levels of seed fields plots, large area, in accordance with the conventional, seed purity testing, such as wheat, are often in a hurry to harvest before the harvest, it is difficult to make according to the formal requirements of the diagonal , Select the representative sample bundle, back to the room for analysis and testing. Coupled with force, material and transportation constraints, are often not up to expectations