天水市三县区果园土壤氮、钙营养调查  

The Nitrogen and Calcium Nutrient Survey of Apple Orchard Soil in Tianshui Three Counties

作　　者：邹亚丽[1] 呼丽萍[1,2] 谢天柱[1,2] 陈荃[1] 祁成龙[1] 

机构地区：[1]天水师范学院生命科学与化学学院,甘肃天水741001 [2]甘肃省大樱桃工程技术研究中心,甘肃天水741001

出　　处：《天水师范学院学报》2012年第2期28-30,共3页Journal of Tianshui Normal University

基　　金：天水师范学院院列资助项目(TSA0819)阶段性成果

摘　　要：针对当地果实缺钙造成的果实苦痘病、水心病、贮藏溃败等生理病害,调查了天水市三县区苹果园土壤营养状况,结果表明:天水果园土壤有机质含量约在1%左右,属于贫瘠土壤,但土壤中速效氮的含量在20~40cm和40~60cm土层中有累积现象,与山东棕壤相比,天水地区的交换性钙略低,而总钙量比其高46.9%,可能果农在土壤管理方面长期过量施用化学氮肥使石灰性土壤表层交换性钙含量逐渐降低,因此合理施肥,加强土壤管理对促进天水地区果业的发展有重要的现实意义.Nutrient situation was investigated of apple orchard soil in Tianshui three counties based on some physiological diseases such as the bitter pit disease,water core and spoilage in storage which were caused by calcium deficiency.The results showed that the organic matter content was about 1% in Tianshui Apple orchard soil,so the soil was poor,but available nitrogen was accumulated in 20~40cm and 40~60cm in the soil.Compared with brown soil in Shandong Province,the exchangeable calcium was lower,however,the total calcium was 46.9%higher than it,which was caused maybe by fruit growers applying chemical nitrogen fertilizer for long time.It has vital practical meaning to promote Tianshui fruit industry in fertilizing properly and enhancing soil management.

关 键 词：苹果园 土壤 钙 有机质 

分 类 号：S66[农业科学—果树学]