旱地马铃薯氮磷钾肥效应及缓释尿素的效果  

The research of fertilizer efficiency of N, P, K and Controlled Release Urea(CRU) effect for potato in semi-arid area

作　　者：段海燕 张晓霞 段玉[3] 张君[3] 姚俊卿[3] 王博[3] 

机构地区：[1]呼和浩特市赛罕区农牧业局,内蒙古呼和浩特010020 [2]武川县可镇农业技术站,内蒙古可镇011700 [3]内蒙古农牧业科学院资源环境与检测技术研究所,内蒙古呼和浩特010030

出　　处：《内蒙古农业科技》2015年第6期34-36,共3页Inner Mongolia Agricultural Science and Technology

基　　金：中国与加拿大合作项目

摘　　要：在内蒙古阴山北麓进行的旱作马铃薯施肥试验,结果表明：旱作马铃薯施用氮磷钾肥均有显著的增产效果,氮肥〉磷肥〉钾肥。缓释尿素与普通尿素配合施用增产效果更佳,单株结薯数、单薯重和商品率都有所提高。研究明确了旱作马铃薯施用氮磷钾肥的养分利用率分别为33.0%、16.5%和41.2%。缓释尿素与普通尿素配合施用氮素利用率提高4.4~4.8个百分点,缓释尿素与普通尿素配合施用促进了磷钾肥的养分利用率。Results of potato（Solanum tuberosum L.） in semi-arid area at north of Yin mountain in Inner Mongolia indicated that N, P, K fertilizer application increased the yield of potato in semi-arid area, N P K. Furthermore, the Controlled Release Urea（CRU） which cooperates with the regular urea had the best performance which could increase the numbers of potato, weight of potato and commodity rate of potato. The study also has been determined that the nutrition use efficiency of N, P, K fertilizer were 33.0%, 16.5%, and 41.2%. The CRU which cooperates with the regular urea increased N use efficiency 4.4~4.8 percentage and P and K use efficiency.

关 键 词：旱作马铃薯 氮磷钾肥 缓释尿素 施肥效应 肥料利用率 

分 类 号：S532[农业科学—作物学]