不同氮肥在盐土玉米营养生长期的应用效果比较  

Comparison of Effects of Different Nitrogen Fertilizers at Corn Vegetative Growth Phase in Saline Soil

作　　者：邓兰生[1] 涂攀峰[1] 官利兰 龚林[1] 贺改花 张承林[1] 

机构地区：[1]华南农业大学资源环境学院,广州510642 [2]广州一翔农业技术有限公司,广州510650

出　　处：《吉林农业科学》2015年第4期39-42,共4页Journal of　Jilin Agricultural Sciences

基　　金：国家科技支撑计划课题(2013BAD05B00);农业部公益性行业(农业)科研专项经费项目(201103003)

摘　　要：为探讨不同氮肥在盐土上的应用效果,在盆栽条件下,研究了尿素、硝酸铵、尿素硝铵溶液、氯化铵及硝酸钠对玉米生长、养分积累及盐土土壤理化性状变化的影响。结果表明,施用氯化铵处理玉米茎叶和整株生物量显著高于尿素、硝酸铵和硝酸钠处理,而施用尿素硝铵溶液处理玉米茎叶和整株生物量最小。盐土中施用氯化铵玉米氮、磷、钾养分积累量均显著高于其他4种氮肥处理,其中,施用氯化铵处理氮、磷、钾的积累量较施用尿素硝铵溶液处理分别高56.78%、76.88%、77.75%。在本试验中,不同氮肥在盐土上的应用效果差异显著,其中以氯化铵效果最佳。A pot experiment was conducted to investigate effects of different nitrogen sources application on vegetative growth phase in saline soil on maize growth, nutrient accumulation and soil physical and chemical proper-ties. The results showed that the biomass of maize in treatment of ammonium chloride was significantly higher than that in urea, ammonium nitrate and sodium nitrate. The biomass of maize in the urea ammonium nitrate solution was the lowest. The nitrogen, phosphorus and potassium accumulation of ammonium chloride treatment were significant-ly higher than other four nitrogen sources, which increased by 56.78%, 76.88% and 77.75% compared with urea am-monium nitrate solution. Different nitrogen sources had significant different performances in the saline soil, and the ammonium chloride had the best performance.

关 键 词：氮源 盐土 玉米 生长发育 养分积累 

分 类 号：S143.1[农业科学—肥料学]