一、旱种水稻生产概况 水稻起源于热带沼泽地区,经长期自然选择和驯化,形成了适应不同土壤水分条件的两大生态类型:水稻和陆(旱)稻。它们之间没有遗传本质差异,都具有对水、旱条件的双重适应能力。因此,水稻实行旱种,具有充足的理论依据。所谓水稻旱种,就是利用现有抗旱能力较 First, the cultivation of dry cultivation of rice Overview of rice originated in the tropical marsh area, after long-term natural selection and acclimation, formed to adapt to different soil moisture conditions of the two major ecological types: rice and land (drought) rice. There is no genetic difference between them, both with water, drought conditions, the dual ability to adapt. Therefore, the implementation of dry cultivation of rice, with sufficient theoretical basis. The so-called dry cultivation of rice, is the use of existing drought capacity