氮磷钾配施对青麻叶产量及肥料利用率的影响  

Effect of Combined Application of Nitrogen,Phosphorus and Potassium on Fertilizer Use Efficiency and Yield of Qingmaye Chinese cabbage

作　　者：严卫华 李超[2] 胡赛晶 文丽 李永 刘曲 钟伶桃 程凯凯[2] YAN Wei-hua;LI Chao;HU Sai-jing;WEN Li;LI Yong;LIU Qu;ZHONG Ling-tao;CHENG Kai-kai(Ningxiang Agricultural Technology Extension Center,Ningxiang 410600,PRC;Hunan Soil and Fertilizer Institute,Changsha 410125,PRC)

机构地区：[1]宁乡市农业技术推广中心,湖南宁乡410600 [2]湖南省土壤肥料研究所,湖南长沙410125

出　　处：《湖南农业科学》2021年第12期44-46,共3页Hunan Agricultural Sciences

基　　金：湖南省农业农村厅田间肥效试验项目(2020)。

摘　　要：采取田间小区试验,研究氮磷钾配施对青麻叶肥料利用率及产量的影响,探索NPK肥料在青麻叶上的利用效率,以期为青麻叶科学施肥提供科技支撑。结果表明:N肥对青麻叶生物产量、经济产量影响最大,P肥、K肥次之,N、P、K肥料配合施用是提高青麻叶产量的关键措施;N、P、K肥料配合施用能显著提高肥料利用率,在试验条件下,N、P、K肥料配合施用青麻叶的N、P、K肥利用率分别为49.5%、27.4%、58.1%。A field plot experiment was conducted to study the effect of the combined application of N,P and K fertilizers on the fertilizer use efficiency and yield of Qingmaye Chinese cabbage,and explore the utilization efficiency of N,P and K fertilizers in Qingmaye,meanwhile provide scientific and technological support for the scientific fertilization in Qingmaye.The results showed that N fertilizer had the greatest impact on the biological yield and economic yield of Qingmaye,followed by P fertilizer and K fertilizer.The combined application of N,P and K fertilizers significantly increased the fertilizer use efficiency,which was a key measure to increase the yield of Qingmaye.In this experiment,the utilization efficiency of N,P and K fertilizers co-applied in Qingmaye was 49.5%,27.4%and 58.1%,respectively.

关 键 词：氮磷钾配施 青麻叶 肥料利用率 

分 类 号：S147.22[农业科学—肥料学]