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一、前言种子是农业生产上重要的生产资料之一。因此,种子质量好坏在生产上具有重要的意义。如果种子质量不良,不仅在播种时要浪费很多种子,同时还会影响播种质量,造成出苗不齐或缺苗断空,从而降低产量。造成这种情况的主要原因是各籽粒的生物学特性不同,对环境条件的耍求和适应能力亦不一致,播种在同一条件下就会产生不同的反应,所以在播种前进行种子精选,对改善种子品质、提高种性以及提高产量和改善产品品质,是一项有效的农业技术措施。
I. Introduction Seed is one of the important means of production in agricultural production. Therefore, the quality of seeds in the production of great significance. If poor seed quality, not only in the sowing to waste a lot of seeds, but also affect the quality of sowing, causing the emergence of missing or lack of seedlings cut off, thereby reducing production. The main reason for this is that the seeds have different biological characteristics, different demands and adaptability to environmental conditions. Sowing will produce different responses under the same conditions, so seed selection before sowing, Improving seed quality, improving seed quality, increasing yield and improving product quality are effective agricultural techniques.