旱地苹果园高效土壤保水剂的应用彭阳县处于宁夏南部半干旱山区，年降雨量４５０～５００ｍｍ且分布不均，主要在生长后期。“七五”期间，彭阳县新发展乔冠密植旱地苹果园１４００ｈｍ２，为实现旱地苹果树早成形早投产，开展抗旱保水措施研究是解决旱地水分不足问题的有... Application of high efficient soil water-retaining agent in dryland apple orchardPengyang County is located in the semi-arid mountainous area of ​​southern Ningxia with annual rainfall of 450 ~ 500mm and uneven distribution, mainly in late growth stage. During the “Seventh Five-year Plan” period, a new development of the Qiaoguan fresh-growing apple orchard at Pengguan County, Qiaoguan 1400hm2, will be put into operation as soon as possible to realize the early formation of the apple tree in the dry land and to carry out drought-resistant and water-saving measures research to solve the shortage of water in the drylands.