Effects of different irrigation frequencies and incorporation of rice straw on yield and water productivity of wheat crop
作者机构：School of Agricultural Equipment EngineeringJiangsu UniversityZhenjiang 212013China Sindh Agriculture University70060 Tando JamPakistan
出 版 物：《International Journal of Agricultural and Biological Engineering》 (国际农业与生物工程学报（英文）)
年 卷 期：2020年第13卷第1期
页 面：138-145页
核心收录：
学科分类：0710[理学-生物学] 0810[工学-信息与通信工程] 09[农学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0901[农学-作物学] 0812[工学-计算机科学与技术（可授工学、理学学位）]
基 金：This work was financially supported by National Natural Science Foundation of China Program(No.51975255) Jiangsu Agriculture Science and Technology Innovation Fund(CX(18)3048) and Priority Academic Program Development of Jiangsu Higher Education Institutions(No.37(2014))
主 题：physico-chemical irrigation frequency rice straw wheat crop water productivity
摘 要：The current rapid increase in irrigation water consumption is considered unsustainable and threatens the world food ***,it is mandatory to promote modern techniques and to manage existing conventional irrigation *** present study was attempted to determine the effects of different irrigation frequencies and rice straw incorporation rates on yield and water productivity of the wheat *** experiment was arranged with randomize complete block design involving nine treatments(RS 0 I 7,RS 0 I 15,RS 0 I 22,RS 1 I 7,RS 1 I 15,RS 1 I 22,RS 2 I 7,RS 2 I 15 and RS 2 I 22)under three *** exposed that the incorporation of rice straw with different irrigation frequencies significantly improved physico-chemical properties of ***,soil bulk density,infiltration rate,pH,electrical conductivity significantly decreased and soil porosity significantly increased under all ***,maximum crop yield and crop water productivity of 7706.4 kg/hm 2 and 1.92 kg/m 3 respectively were found under RS 1 I 15 *** on experimental results it can be concluded that irrigation frequency and incorporation of rice straw had significant effects on the physico-chemical properties of soil,total grain yield and water productivity of the wheat ***,this study suggested that the wheat crop yield and water productivity could be increased by incorporating 1 t/hm 2 rice straw with 15 d of irrigation frequency.
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