草业学报2011，Vol.20Issue(2)：234-243,10.
不同氮磷水平下盐角草生长及盐分累积特征分析
Analysis of growth and salt accumulation features of Salicornia europaea under different nitrogen and phosphorus levels
摘要
Abstract
Research is driven by the hope of rapidly restoring saline land effectively through improving halophyte biomass and performance in saline areas. The effects of varying levels of N fertilization (0, 75, 150, and 225 kg/ha), and P fertilization (0 and 135 kg/ha) on growth and salt accumulation of Salicornia europaea was studied under field saline conditions in Xinjiang. The aerial biomass, root biomass, seed yield, and salt accumulation increased dramatically with increased N levels. The largest amount of salt absorbed and accumulated by S. europaea was in treatment N225, with 11 534.39 kg/ha recorded, 4.07 times more than in the CK. N225 also had the highest Na+ , Cl- and SO42- accumulation. P increased biomass, seed yield, and salt accumulation to some extent, but the differences were not significant. Seed N concentration was significantly increased compared with the CK by raising the N level to 225 kg/ha, but not by increasing P. In addition, there was no significant difference in N concentration in stems and shoots or of P concentration in all three plant organs listed above between the different N and P levels. Salt concentrations in shoots and stems were significantly increased by N, but differences in salt concentrations in stems, assimilation shoots and seeds between P1 and PO were not significant. The results suggest a good possibility of rapidly restoring saline inland soils by increasing N and P fertilization.关键词
盐角草/氮/磷/养分含量/盐分含量/盐碱地改良Key words
Salicornia europaea / nitrogen/ phosphorus/ nutrition concentration/ salt concentration/ improvement of saline soil分类
农业科技引用本文复制引用
王界平,田长彦..不同氮磷水平下盐角草生长及盐分累积特征分析[J].草业学报,2011,20(2):234-243,10.基金项目
农业部"公益性行业"(农业)科研专项(200903001)资助. （农业）
