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关中东部渭北旱原是我省产麦区之一,但常产仅200斤左右。为了尽快提高单产,合理施用化肥,1974—76年,我们在本所(蒲城孙镇)试验场进行氮磷化肥试验。渭北旱原的自然条件渭北旱原气候温暧干燥,年蒸发量912.5毫米(蒲城),干燥度1.5~1.7,尤以南部更甚。年降水600毫米左右,南少北多,夏秋多于冬春。
The middle part of Guanzhong is one of the producing areas of wheat in Weibei, but the normal output is only about 200 kg. In order to improve yield as soon as possible, and the rational use of chemical fertilizers, we conducted a nitrogen and phosphorus fertilizer test in our laboratory (Pucheng Sunzhen) from 1974 to 2006. The natural conditions of the Weibei drylands Weinbei dry climate warm and dry, the annual evaporation of 912.5 mm (Pucheng), dryness of 1.5 to 1.7, especially in the southern even more. About 600 millimeters of precipitation, less north and more north, summer and spring than winter.