根据气候条件,结合作物各物候区特点,将渭北旱塬划分为省东半干旱区;省西半湿润区和千、陇半湿润偏湿润三个区。限制渭北旱塬产量提高的主要因素是地力低下与干旱。当前应从狠抓培肥地力和合理施肥技术入手,研究充分利用降水和保蓄土壤水分的高产措施。 According to the climatic conditions and combining with the characteristics of each phenological area of ​​the crops, the Weibei dry highlands are divided into the eastern semi-arid province; the western semi-humid zone and the three regions of the Qianlong and Longnan humid and partial humidities. The main factors that limit the increase of output in Weibei arid highland are low soil fertility and drought. At present, we should pay close attention to soil fertility and reasonable fertilization technology to start research to make full use of precipitation and high-yielding soil moisture conservation measures.