【摘要】 坡缕石具有较强的保水性、吸附性和缓释性,是一种新型的生态功能材料,在农业上具有广阔的应用前景。为探明其保水及增产效应,以马铃薯为指示作物进行了其不同配施方式的研究,结果表明,坡缕石和保水剂、营养肥料配施能明显促进马铃薯的株高增长、增加茎叶和穴薯鲜重量、提高马铃薯单位面积产量和改善马铃薯品质。坡缕石单施时,马铃薯产量较对照增产21.55%;坡缕石与营养肥料配施时,马铃薯产量增幅为36.62%～51.28%;同时还表现出坡缕石具有保水和提高水分利用率的效应,可作生态功能新材料应用于生态农业建设之中。更多还原

【Abstract】 Palygorskite is a new ecological function material with good water retention property, absorbability and slow-releasing effect, so it has wide application prospect in agriculture. To understand its water-retention and yield-increasing effect, the experiment has been made on potato. The combined application of palygorskite, water retaining agent and nutrition fertilizer could effectively increase the indexes of potato in plant height, weight of stem and leaf, and tuber yield based on both plant and unit area. They also could improve its quality. Application of only palygorskite could increase the yield by 21.55% compared with control, and application with nutrition fertilizer could increase yield by 36.62%～51.28%. Palygorskite also showed good effect of water-retention and increasing water use efficiency. Therefore, it can be used as new ecological function material in eco-agricultural construction.更多还原