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DOI	10.13031/aea.13416
	PRODUCTIVITY AND PROFITABILITY OF FOUR CROP ROTATIONS UNDER LIMITED IRRIGATION
	Schlegel, A. J.1; Assefa, Y.2; O'; Brien, D.3
通讯作者	Schlegel, A. J.
来源期刊	APPLIED ENGINEERING IN AGRICULTURE
ISSN	0883-8542
EISSN	1943-7838
出版年	2020
卷号	36 期号:1 页码:1-9
英文摘要	Selection of optimal crops and cropping systems for most efficient water use specific for local environments can improve global water security. Limited irrigation with ground water is one alternative to alleviate crops from low amount or unevenly distributed water in the growing seasons in semi-arid regions. The main objectives of this research were to quantify yield-water use relationships of three limited irrigated crops, determine effect of crop selection on profitability with limited irrigation, and identify profitable and alternative crop production systems. Afield study was conducted at the Kansas State University Southwest Research-Extension Center near Tribune, Kansas, from 2012 through 2017. There were four treatments in the study, two 1-yr systems of continuous corn (Zea mays L.) (C-C) and continuous grain sorghum (Sorghum bicolor L.) (GS-GS) and two 2-yr rotations of corn-grain sorghum (C-GS) and corn-winter wheat (Triticum aestivum L.) (C-W). Overall corn yield after wheat (C-W) was about 1.4 Mg (ha)(-1) greater than C-C. Corn and sorghum yields were similar grown as monoculture or in rotation with each other. Available soil water at corn planting and during the growing season were 20 to 40 mm (240 cm profile(-1)) less in the C-GS rotation compared with C-C and C-W rotations. Corn yield increased as water use (yield-water use) increased in C-W rotation but yield-water use relationships tended to be negative in C-C and C-GS rotations. Grain sorghum yield increased with water use in both rotations but at a greater rate in GS-GS compared with C-GS. Despite greater corn grain yield in C-W, our economic analysis showed that wheat was the least profitable of the three crops causing the C-W rotation to be least profitable. In this study, the most profitable limited irrigation crop rotation was corn-grain sorghum (C-GS).
英文关键词	Corn-sorghum-wheat Crop rotation Limited irrigation Profitability Supplementary irrigation Sustainability
类型	Article
语种	英语
国家	USA
开放获取类型	Bronze
收录类别	SCI-E
WOS记录号	WOS:000538385800001
WOS关键词	GRAIN-SORGHUM ; CORN YIELD ; WATER-USE ; DRYLAND WHEAT ; SOIL-WATER ; SYSTEMS ; TILLAGE ; SUSTAINABILITY ; STABILITY ; DEPLETION
WOS类目	Agricultural Engineering
WOS研究方向	Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/318800
作者单位	1.Kansas State Univ, Tribune, KS USA; 2.Kansas State Univ, Dept Agron, Manhattan, KS USA; 3.Kansas State Univ, NW Res Extens Ctr, Colby, KS USA
推荐引用方式 GB/T 7714	Schlegel, A. J.,Assefa, Y.,O',et al. PRODUCTIVITY AND PROFITABILITY OF FOUR CROP ROTATIONS UNDER LIMITED IRRIGATION[J],2020,36(1):1-9.
APA	Schlegel, A. J.,Assefa, Y.,O',&Brien, D..(2020).PRODUCTIVITY AND PROFITABILITY OF FOUR CROP ROTATIONS UNDER LIMITED IRRIGATION.APPLIED ENGINEERING IN AGRICULTURE,36(1),1-9.
MLA	Schlegel, A. J.,et al."PRODUCTIVITY AND PROFITABILITY OF FOUR CROP ROTATIONS UNDER LIMITED IRRIGATION".APPLIED ENGINEERING IN AGRICULTURE 36.1(2020):1-9.