农作物种子播前进行科学处理,可以提高种子发芽率、发芽势,达到早出苗、出齐苗、出壮苗、抗灾、早熟、增产的目的,是农作物丰产,优质的重要措施之一。 晒种 农作物种子在播前半月,选择晴朗无风的天气晒种3～4天。方法是先在地面上铺一块帆布,把种子倒在上面,按5～10厘米的厚度散开,晒种时应经常翻动种子,使其均匀受光。杜绝将种子直接放在水泥地板和导热性能强的金属板上进行暴晒,以防种子局部温度过高,造成烫伤种子而降低发芽率。 Crop seed sowing before the scientific treatment, can improve the seed germination rate, germination potential, to early emergence, a Qi Miao, a strong seedlings, disaster prevention, early maturity, increase production purposes, is one of the important measures of crop yield, high quality. Sowing seeds of crops in the first half before sowing, choose sunny and windy weather bask in 3 ~ 4 days. Method is to first shop a canvas on the ground, the seeds poured on top, according to the thickness of 5 to 10 cm spread, when the seed should be regularly flipped seed, so that it is uniform light. Put an end to the seeds directly on the cement floor and the thermal conductivity of the metal plate exposure, to prevent the local temperature is too high, resulting in scalding seeds and reduce the germination rate.