1．必须明确旱育稀植的基本概念水稻是湿生性作物，在湿润或有水层的还原性土壤环境中，有较强的适应性。因此，传统的育秧技术，都是在水田中进行，各项措施都是围绕“水有”要求进行的。而旱育秧则是在旱地中进行，并根据“旱育”的要求制定各项技术措施。如果以“水育”的传 1. Must be clear that the basic concept of drought-sparse plantings Rice is a wet crop, in the humid or aquatic reducing soil environment, strong adaptability. Therefore, the traditional seedling raising techniques are all carried out in paddy fields. All the measures are based on the requirements of “water availability”. The dry nursery seedlings are carried out in the dry land, and in accordance with the “dry nursery” requirements of the development of technical measures. If the “water education” pass