大米草玉米的耐盐效果及对盐渍化土壤的改良试验  

Salt-tolerant Effect of Rice Grass-Maize and Improvement on Saline Soil

作　　者：冯琛[1,2] 党高兵 解建仓[1] 孙博[1] 汪妮[1] 

机构地区：[1]西安理工大学水利水电学院,陕西西安710048 [2]陕西省农业厅土壤肥料工作站,陕西西安710032 [3]蒲城县农业技术推广中心,陕西蒲城715500

出　　处：《水土保持通报》2011年第6期47-50,共4页Bulletin of Soil and Water Conservation

基　　金：国家自然科学基金项目"基于生态安全的城市化区域水土资源配置研究"(51079120);国家自然科学基金项目"面向防汛抗旱会商的综合集成平台及知识服务模式研究"(50979088);陕西省教育厅2010年省级重点实验室项目(2010JS077)

摘　　要：土壤盐渍化已成为限制农作物生长、发育和产量的最主要非生物胁迫因素之一。培育耐盐碱作物是解决这一问题的有效途径。通过田间试验,研究了大米草玉米耐盐碱能力和改良盐渍化土壤的效果。结果表明,筛选出的适应盐渍土种植的优良大米草玉米自交系具有很强的生长势和耐盐碱性,耐盐能力为11.76g/kg。根据作物生长势好,生长势强和生长势特强3种长势试验地块的测试结果,3种地块土壤脱盐率依次为15.7%,22.9%和34.5%,表明通过培育优选出的大米草玉米不仅具有较强的耐盐碱性能力,而且还对改良盐渍化土壤具有一定的效果。Soil salinization has limited crop growth,development and production which is one of the most serious abiotic stress.Cultivation of salt-resistance crops is to solve a good way of the salinity problem.Through field experiments,salt-resistance capacity of rice grass-maize and its improvement effects on saline soil were studied.The results showed that fine rice grass-maize inbred line of adaptive saline soil have strong growth potential and salt-resistance,salt-resistance capacity is 11.76 g/kg.Based on good,strong,extra strong of growth potential,soil salt content were 15.7%,22.9%,34.5%,respectively.Therefore,after cultivating rice grass-maize,not only fine varieties have salt-resistance capacity,but also improved saline soil has a certain effect.

关 键 词：盐渍化土壤 耐盐碱性 大米草玉米 土壤改良 

分 类 号：S156.4[农业科学—土壤学]