黄土丘陵区往往干旱缺雨,坡耕地水土流失严重,耕作粗放,这已成为黄土丘陵区旱作农业增产的最大限制因子。为了提高旱作农业单位面积产量,应当根据黄土丘陵区的实际情况和自然资源优势,采取适当的增产培肥措施,这是发展旱作农业的有效途径。 The loess hilly areas often suffer from aridity and lack of rainfall. Soil and water loss in sloping arable land is serious and extensive farming has become the maximum limiting factor for dry farming in the loess hilly region. In order to improve the yield per unit area of ​​dry farming, it is necessary to adopt proper measures of increasing fertility and fertilizing according to the actual conditions of the loess hilly region and natural resources, which is an effective way to develop dry farming.