平度市免耕直播夏玉米钾素施用效应  

Effects of Potassium Application on Summer Maize in No Tillage Direct Seeding

作　　者：王春夏 朱瑞华 郭希芹 

机构地区：[1]江北农业技术市场,山东平度266700 [2]平度市农业局,山东平度266700 [3]平度市蓼兰镇农业服务中心,山东平度266731

出　　处：《湖北农业科学》2017年第15期2840-2841,2845,共3页Hubei Agricultural Sciences

摘　　要：为了考察钾素对夏玉米（Zea mays L.）植株生长、产量和钾素利用的影响,于2015年在山东省平度市蓼兰镇、同和街道、明村镇进行了钾素肥料效应试验。结果表明,施钾肥处理对穗位叶面积的影响比其他施肥处理明显;与只施用氮、磷肥处理相比,3个试验点氮、磷、钾配施的作物产量平均增加6.92%,增产效果明显;植株钾素积累量平均增加26.09%,利于夏玉米生长及子粒产量的形成。To investigate the impacts of potassium on plant growth,yield and potash efficiency of summer maize（Zea mays L.）, the potassic fertilizer experiment was carried out in Liaolan town,Tonghe streets and Mingcun town of Pingdu, Shandong province in 2015. The results showed that the ear leaf area when used potassium was significantly affected than other treatments.Compared with the treatment of only application of nitrogen and phosphorus fertilizer,the maize yield of 3 test point increased by 6.92% under the treatment of nitrogen,phosphorus and potassium balanced fertilization（NPK）. The potassium accumulation of plants increased by 26.09%,which was beneficial to the growth of summer maize and the formation of grain yield.

关 键 词：夏玉米(Zea mays L.) 钾素 效应 

分 类 号：S513[农业科学—作物学] S147.5