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锦县双羊公社仁字大队位于小凌河左岸,耕地3,987亩(大部分是冲积平原砂壤土)。当地年平均降水量为604.9毫米.作物生育期(5月1日～9月20日),最大降水量684.8毫米。最小降水量228.7毫米,平均蒸发量为981.0毫米。从历年气象条件看,干旱对本地区农业生产影响很大。为了研究本地区玉米、高粱灌溉的增产效果,1972年对玉米(白鹤)、高粱(晋杂五号)进行了5个灌溉处理(灌1、2、3、4次水和对照不灌水)的试验。试验地前茬是土豆、玉米二季作。播种前每亩施底肥(农家肥)
Jin County Shuangyang commune Ren word brigade is located in the left bank of the Xia Ling River, 3,987 acres of arable land (mostly alluvial plain sandy loam). The average annual rainfall of 604.9 millimeters. Crop growth period (May 1 to September 20), the maximum rainfall of 684.8 mm. The minimum precipitation is 228.7 millimeters with an average evaporation of 981.0 millimeters. From the meteorological conditions over the years, the drought has a great impact on the agricultural production in this area. In order to study the yield increasing effects of maize and sorghum irrigation in this area, five irrigation treatments were conducted on corn (Baihe) and sorghum (Jinzawu) in 1972 (Irrigation 1, 2, 3 and 4 water and control not irrigation) test. Test before the crop is potatoes, corn two seasons. Before sowing per mu base fertilizer (farmyard manure)