榆林沙区不同有机肥施用量对滴灌玉米拔节期生长及生理性状的影响  

Effects of Different Organic Fertilizer Application Rates on Growth and Physiological Characteristics of Drip Irrigated Maize at Jointing Stage in Yulin Sandy Area

作　　者：李小炜[1] 田丽[1] 白春梅 李晓韬[1] LI Xiao-wei;TIAN Li;BAI Chun-mei;LI Xiao-tao(Yulin University,Yulin 719000,Shaanxi,China;Yulin Eighth Middle School,Yulin 719000,Shaanxi,China)

机构地区：[1]榆林学院,陕西榆林719000 [2]榆林市八中,陕西榆林719000

出　　处：《湖北农业科学》2018年第7期44-47,共4页Hubei Agricultural Sciences

基　　金：陕西省教育厅专项科学研究计划项目(17JK0894)

摘　　要：采用不同量有机肥作为基肥,研究有机肥对沙区玉米(Zea mays L.)拔节期生长及生理性状的影响。结果表明,随着有机肥施用量的加大,拔节期玉米株高、茎粗、干物质积累量、叶绿素SPAD、N含量、P含量、K含量和光合特征等指标总体呈增加趋势。其中,有机肥施用量在6 750 kg/hm2左右,玉米株高、干重、叶绿素SPAD、光合特征、N含量、P含量、K含量等各项指标达到最佳状态,故施用6 750 kg/hm2左右有机肥作为基肥,是榆林沙区拔节期玉米生长的最佳施肥量。试验也表明,干旱地区施用有机肥,能提高水分生产效率,节约水源。Treatment with different amount of organic fertilizer as base fertilizer,the effects of organic fertilizer on the growth and physiological characters of maize(Zea mays L.)jointing stage at arid area were studied.The results showed that the plant height,stem diameter,dry matter accumulation,chlorophyll SPAD,N,P,K content and photosynthetic characteristics of maize at jointing stage showed an increasing trend with the increase of organic fertilizer application amount.When the fertilization amount of 6 750 kg/hm2,plant height,dry weight,chlorophyll SPAD,photosynthetic characteristics,N,P,the K content of growth,physiological indicators achieved the best condition,so the application of 6 750 kg/hm2 organic fertilizer as base fertilizer was the optimum fertilization in Yulin Sandy Area at jointing stage of maize growth.The experiment also showed that applying organic fertilizer in arid area could improve water production efficiency and save water source.

关 键 词：玉米(ZeamaysL.) 有机肥 拔节期 生长 榆林沙区 

分 类 号：S513[农业科学—作物学]