摘要
离子交换树脂具有稳定的结构、固定的组成及很高的阴阳离子交换量。离子交换树脂具有良好的气、固、液三相。因此具有持水佳、载肥高、透气好等优点。当离子交换树脂中的矿质元素被植物大量吸收后，可以对其进行再生处理从而保证它能够反复使用。离子交换树脂是一个内存很大的化学库，它所吸附的营养元素不会被水淋洗而有所减少，植物在持有高水平矿质营养的离子交换树脂中亦不会受到反渗透伤害。此点经吸附有5000mg·kg-1钾的离子交换树脂对大丽花（DahliapinnataCav．）的栽培及吸附有5000mg·kg－1磷的离子交换树脂对蟹爪（ZygocacturstruncatusSchum）的栽培中得到证实。
Ion exchage resin has the stable structure, fixed composition and high anion and cation exchange capacity. It has good gas, soild and liquid phases, and has the advantages of good water retention ability, high fetilizer carrier and strong air exchange power ability, etc. When the mineral elements in the ion exchange resin are greatly absorbed by the plants, it can be regenerated for repeated application. Ion exchange resin is a chemical store with 1arge storage capacity. Its adsorbed nutrient elements are not reduced by water leaching. The plants that are planted in the ion exchange resin with high level of mineral nutrients can not be harmed by the reversion osmosis. This has been demonstrated by the per formace of cultivation of dahlia (Dahlia pinnata Cav.) and crab cactus (Zygocactus truncatus Schum) in the ion exchange resin adsorbing 5 000 mg·kg-1 potassium and 5 000 mg·kg-1 phosphorus, respectivecy.
出处
《中国农业大学学报》
CAS
CSCD
北大核心
1996年第5期89-94,共6页
Journal of China Agricultural University
关键词
花卉
蟹爪
大丽花
磷
钾
离子交换树脂
flowers
crab cactus
dahlia
phosphorus
potassium
ion exchange resin
