不同磷肥对冬小麦生育期动态·产量及肥效的影响  

Effects of Different Phosphorus Fertilizers on Growth Period Dynamics,Yield and Fertilizer Efficiency of Winter Wheat

作　　者：王玉霞 李洪杰 周晓琳 董艳芳 刘佰霖 赵同凯 李子双 WANG Yu-xia;LI Hong-jie;ZHOU Xiao-lin(Dezhou Academy of Agricultural Sciences,Dezhou,Shandong 253015)

机构地区：[1]德州市农业科学研究院,山东德州253015

出　　处：《安徽农业科学》2022年第22期138-141,共4页Journal of Anhui Agricultural Sciences

基　　金：国家自然科学基金项目“麦玉两熟体系作物秸秆钾转化特征与钾素补偿机制”(41877100);山东省重大科技创新工程项目“小麦-玉米周年水肥精准调控关键技术研发与集成示范”(2019JZZY010716);德州市市级研发计划项目“德州农田土壤改良机理与新技术研究”;德州市市级研发计划项目“德州小麦玉米农药化肥减施增效技术研究与应用”。

摘　　要：为研究不同磷肥对德州地区冬小麦生育期动态及产量的影响,以“济麦22”为供试小麦品种,开展此试验。选用3种氮磷配比磷肥进行施肥处理试验,磷肥含N和P_(2)O_(5)分别为14%、39%(T_(1)),18%、46%(T_(2)),12%、40%(T_(3)),所有处理磷肥、尿素(含N 45%)、硫酸钾(含K_(2)O50%)分别等量施用。结果表明,3个处理对生育期地上干重、根干重、返青拔节期分蘖数、灌浆期叶面积和收获期株高影响差异不显著;对生育期全氮、全磷、全钾含量影响差异不显著;产量T_(1)小于T_(2),但差异不显著;氮、磷肥偏生产力T_(1)均最高。在德州地区含N和P_(2)O_(5)分别为14%、39%是较适宜的磷肥。In order to study the effects of different phosphorus fertilizers on the growth period dynamics and yield of winter wheat in Dezhou Area,the experiment was carried out with"Jimai 22"as the tested wheat variety.In this experiment,three kinds of phosphorus fertilizers with different nitrogen and phosphorus ratios were selected for fertilization treatment.The phosphorus fertilizer contained 14%N and P_(2)O_(5) respectively 39%(T_(1)),18%,46%(T_(2)),12%,40%(T_(3)).Phosphate fertilizer,urea(containing N 45%)and potassium sulfate(containing K_(2)O 50%)were applied in the same amount in all treatments.The results showed that there was no significant difference between three treatments on aboveground dry weight and root dry weight at growth stage,tiller number at rejuvenated jointing stage,leaf area at filling stage and plant height at harvest stage.There was no significant difference in the contents of total nitrogen,total phosphorus and total potassium during the growth period.T_(1) was less than T_(2) in yield,but the difference was not significant.The partial productivity T_(1) of nitrogen and phosphorus fertilizer was the highest.In Dezhou area,the proportion of N and P_(2)O_(5) is 14% and 39% respectively,which is a more suitable phosphorus fertilizer.

关 键 词：磷肥 生育期动态 产量 济麦22 肥效 

分 类 号：S512.11[农业科学—作物学]