旱种的水稻植株从幼苗开始就生长在大田环境条件下,由于土壤通气性好,所以根系生长发育良好,根数多,根重大。据调查,旱种的水稻每穴根系干重为0.70克,比插秧稻多0.23克。由于它具有强大的根系,能从土壤中吸收更多的养分,因此,植株健壮,后期大多活秆成熟,极少出现“早衰”现象。但是,旱种稻前、中 Dry-grown rice plants grow from the seedlings in the field environment conditions, due to good soil aeration, so the root growth and development well, the number of roots, a significant root. According to the survey, dry cultivation of rice per hole dry weight of 0.70 grams, 0.23 grams more than transplanting rice. Because it has a strong root system, can absorb more nutrients from the soil, therefore, the plant is robust, most of the live straw mature later, rarely appear “premature aging” phenomenon. However, dry cultivation of rice before, in