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内蒙古喀喇沁旗西桥乡属于北方半干旱地区,年降水量350—500毫米,全生育期日照为1650小时,大于或等于10℃积温2900—3100℃,无霜期130—135天。全乡总面积20万亩,耕地9.3万亩,85％以上是旱坡地,土壤为褐土类,土质瘠薄。历史上种植业以旱作物为主,受低温冷害、尤其是干旱的影响较大,粮食产量和经济作物的收益一直是低而不稳。为在旱地种
West Qiaoxiang of Inner Mongolia Autonomous Region of Kalaqin Banner belongs to the northern semi-arid area. The annual precipitation is 350-500 mm. The whole growth period is 1650 hours. The accumulated temperature is 2900-3100 ℃ higher than or equal to 10 ℃ and frost-free period is 130-135 days. The township, a total area of 200000 acres, 93000 acres of arable land, more than 85% is arid slope, the soil is cinnamon soil, infertile soil. Historically, crop production was dominated by dry crops, and the impact of chilling injury especially on drought was greater. The yield of grain and the benefit of cash crops have been low and unstable. For dry land species