Seeds are important agricultural means of production. The quality of seeds not only affects the yield of crops, but also affects the quality of crops. Only good seeds combined with appropriate cultivation techniques can give full play to the advantages of improved varieties and produce high-yield, stable-yielding and high-quality agricultural products. Farmers must be aware of the observations during the process of purchasing high-quality seeds. When buying seeds, it is necessary to see whether the seeds are pure and consistent. The seeds of the good seeds are full, the surface is bright and shiny, there are no wormholes and lesions, and the dust in the bags is minimal. Teeth particles, uniform particle size. These seeds generally have higher quality and better reputation. What is a net seed in the process of testing the seed's clarity with an air blower? What is impurity? Good seed: Must be a normal seed; Seeds that have not been sifted through the sieve; Seedlings or young shoots start to break through the testa, but the young roots or germs are not yet exposed outside the seed coat. Seeds; endosperm or cotyledon damaged, but still more than 2/3 of the seeds are preserved; Waste seeds: Seeds without embryos; seeds and granules that have been sieved through the prescribed sieve; seeds that do not require sifting are less than one-third of the lean seeds of normal seeds. Living impurities: weeds and other crop seeds; live pests (including larvae, eggs, and maggots) are not enough for 1/3 of the normal seeds. The nucleus of the nucleus, bacillus, smut, spruce, nematode, and Ying finished with a stalk of rouge. Inanimate impurities: earth, sand, stones, murine gargocks; seedless embryos of different crops; dead pests and larvae, insect excrements, shredded stems, and shells. The above is the difference between good and bad seeds and impurities. When the accuracy test is performed, the clarity test can be carried out directly according to the above distinction. The use of a blast cleanness meter for the clarity test can quickly distinguish the seeds and impurities.
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The difference between seeds and impurities