复合植物营养元素抗旱保水剂的研制及其在甘草栽培上的应用
郭肖颖1,2, 李布青1, 吴李君2
（ 1 安徽省农业科学院原子能农业应用研究所，合肥230088；2 中国科学院等离子体物理研究所，合肥230031）
摘要: 针对沙漠高温、强光照以及养分贫瘠等特点, 研制了复合植物营养元素抗旱保水剂。通过甘草栽培试验, 选出与甘草根系具有良好的相容性, 并具有较优性能的复合植物营养元素抗旱保水剂作为沙漠条件下种植甘草的最佳材料。试验结果表明, 复合植物营养元素抗旱保水剂的制备, 营养元素含量约1.0%时, 其平衡吸纯水倍率可达450~800g/g, 平衡吸盐水倍率可达50~70g/g, 吸水后具有良好的凝胶强度, 与沙混合可增强透气性。将其应用于模拟沙漠干旱条件下甘草的栽培, 用量在1.0%~1.5%之间时, 既能保持外部环境干旱缺水条件下甘草根际水分含量, 又能为甘草生长提供全面充足的养分。
关键词: 复合植物营养元素抗旱保水剂; 干旱环境; 甘草
中图分类号: S145.9 文献标识码: A
Development of Compound Super Absorbent and Study on its Application with Liquor ice Cultivation
Guo Xiaoying1,2, Li Buqing1, Wu Lijun2
(1Insititute for Agricultural Application of Atomic Engery, Anhui Academy of Agricultural Sciences, Hefei 230088;2Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031)
Abstract: For the characteristics of the high temperature, strong light, and infertile soil in desert, we developed a compound super absorbent for plant. It was found that the compound super absorbent with 1.0% nutritional elements could swell 450 ~800g/g in water and 50 ~70g/g in salt - solution to its own weight, and with better gel strength. Through the cultivation of liquorice with different compound super absorbent under drought condition, it was shown that 1.0%~ 1.5% compounds super absorbent in sand could maintain the water condition around the roots and supply the nutrient to the liquorice.
Key words: Compound super absorbent, Drought conditions, Liquorice