摘要
基于滴灌技术下同一灌水周期,不同灌水定额进行大田试验,探究灌水量对食葵生长及产量的影响,进而寻找适宜的灌溉制度,最终达到节水、增产的目的。试验结果表明:不同灌水定额会影响作物生长发育,但不是灌水量越大,植株生长发育越好。同时灌水量会影响作物体内含水量的大小,灌水量越大,其作物体内含水量就越高。对植株、茎围、灌水量、产量之间关系进行分析,最终得出影响作物产量的因素为作物茎围和体内含水量。两者越高,作物产量越大。但含水量到达一定程度时,会影响限制茎围发育,造成相对减产。对试验最终产量进行对比,结果表明应用450m3/hm2的灌溉制度进行灌溉,所得产量最高,且不影响作物生长发育,经济效益最为显著。这将对北疆地区滴灌条件下食葵节水灌溉技术提供合理的参考依据。
Under the condition of same drip irrigation period,a field experiment is conducted to study the effects of different irrigation quota on the growth and yield of sunflower,and then to find the suitable irrigation schedule,and finally achieve the purpose of saving water and increasing yield.The results show that：different irrigation quota will affect crop growth and development of crops;but not the greater the amount of irrigation,the better the growth and development of plants;at the same time,the amount of irrigation water will affect the content of water in the crop;the greater the amount of irrigation,the higher the content of water in the crop.Through analyzing the relationship between plant,stem circumference,irrigation quantity and yield,it is found that the factors affecting the crop yield are the crop stem girth and body water content;the higher the two factors,the bigger the crop yield;But when the water content reaches a certain level,it will restrict the development of stem,resulting in the relative reduction in production.The final yield comparison test results show that irrigation quota of 450m^3/hm^2 gets the highest yield and the most significant economic benefits,without affecting crop growth.The study result will provide reasonable references for sunflower water-saving irrigation technology under the condition of drip irrigation in northern Xinjiang region.
出处
《节水灌溉》
北大核心
2016年第4期11-14,共4页
Water Saving Irrigation
基金
新疆水利科技项(2013G05)
新疆水利电工程重点学科基金资助项目(XJZDXK-2002-10-05)
关键词
滴灌
灌溉定额
食葵
产量
drip irrigation
irrigation quota
sunflower
yield
作者简介
作者简介：艾鹏睿（1992-），男，硕士研究生，主要从事灌溉节水理论研究。E—mail：a5124659@163．com。
通讯作者：马英杰（1969-），男，教授，博士，博士生导师，主要从事节水灌溉研究。E-mail：xj-myj@163．com。
