山区由于温光自然条件的影响，制种只能是中稻一季。１９９３年三明市开始大面积示范推广水稻旱育秧技术，并应用于制种的父本育秧，实现早播、早插，使山区中、高海拔的中稻制种改为早稻制种后再抢种一季作物，取得显著效益。其关键技术如下：１确定最佳授粉时段：水稻传... Mountain due to the impact of natural conditions of light and light, seed production can only be a season of rice. In 1993, Sanming began demonstrating and popularizing rice dry cultivation techniques in a large area and applied it to seedling parental seedlings. Early sowing and early planting were carried out so that medium and high altitude medium-sized rice varieties in mountainous areas could be replaced with early rice varieties for planting Crops have achieved significant benefits. The key technologies are as follows: 1 determine the best pollination period: rice pass ...