旱地农业高效用水技术的应用研究

Research on Technology of Effective Water Use in Dry Farming

旱地农业面积约占全国耕地面积的59%,对国民经济具有举足轻重的作用。旱地农业没有灌溉条件,必须在提高降水利用率上做文章。旱地农业高效用水技术主要包括:适水种植、选育抗旱节水高产品种、搞好农田基本建设、耕作保墒、化学调控节水和抗旱灌溉。

The dry farming area accounts for 59%in the whole cultivated area in our country. The dry farming plays an important role in GDP. Because of no irrigation condition in dry farming, consequently, improving the use efficiency of precipitation must be taken into account. Technologies of effective water use in dry farming include: planting according to the precipitation and soil moisture condition; choosing and breeding the new crop varieties of drought defying; water saving and high yielding; making a good job of farmland construction; protecting soil moisture by storing rain water; using chemical water-saving measures; irrigating used temporary measures of drought relief.