杨塔公社地处永靖县西部山区,平均海拔2320米。境内气候干燥,雨量稀少,农业生产条件差。自1976年以来,在地、县农技部门的蹲点帮助下,我们从本社干旱、少雨、多灾的实际情况出发,扬长避短,趋利避害,狠抓干旱山区洋芋高产的关键措施,收到了较好的增产效果。1981年在持续干旱的情况 Yangta commune is located in the western mountains of Yongjing County, with an average elevation of 2320 meters. The territory of the climate is dry, scarce rainfall, agricultural production conditions are poor. Since 1976, with the help of the agricultural science and technology departments in the prefecture and county areas, we have taken countermeasures from the actual conditions of drought, light rain and disasters in our society to avoid weaknesses, seek benefits and avoid disadvantages and pay close attention to the key measures for high yield of potato in arid mountainous areas. Better stimulation effect. Continued drought in 1981