干旱区生态环境知识资源中心(Arid): In-Field Rainwater Harvesting Tillage in Semi-Arid Ecosystems: II Maize-Bean Intercrop Water and Radiation Use Efficiency

Arid

DOI	10.3390/plants12162919
	In-Field Rainwater Harvesting Tillage in Semi-Arid Ecosystems: II Maize-Bean Intercrop Water and Radiation Use Efficiency
	Tesfuhuney, Weldemichael; Ravuluma, Muthianzhele; Dzvene, Admire Rukudzo; Bello, Zaid; Andries, Fourie; Walker, Sue; Cammarano, Davide
通讯作者	Tesfuhuney, W
来源期刊	PLANTS-BASEL
ISSN	2223-7747
出版年	2023
卷号	12 期号:16
英文摘要	The purpose of this study was to evaluate alternative management practices such as in-field rainwater harvesting (IRWH) and intercropping techniques through conducting on-farm demonstrations. Seven homestead gardens in Thaba Nchu rural communities in the central part of South Africa were selected as demonstration trials. Two tillage systems, conventional (CON) and IRWH, as the main plot, and three cropping systems as sub-plot (sole maize and beans and intercropping) were used to measure water use and radiation use parameters. The water productivity (WP) of various treatments was positively related to the radiation use efficiency (RUE), and the degree of associations varied for different tillage systems. The water use in IRWH was higher by 15.1%, 8.3%, and 10.1% over the CON for sole maize and beans and intercropping, respectively. Similarly, the intercropping system showed water use advantages over the solely growing crops by 5% and 8% for maize and by 16% and 12% for beans under IRWH and CON tillage, respectively. Maximum RUE was found for sole maize and beans under IRWH, higher by 13% and 55% compared to the CON tillage, respectively. The RUE under IRWH tillage was estimated to be 0.65 and 0.39 g DM MJ(-1) in sole maize and intercropping, respectively. However, in sole and intercropped beans, the RUE showed higher values of 1.02 g DM MJ-1 and 0.73 g DM MJ(-1), respectively. WP and RUE were associated with water deficits and proportional to lower radiation use. This relationship indicates that the intercepted radiation by plants for photosynthesis is directly related to the transpiration rate until radiation saturation occurs. Therefore, the higher water deficit and lesser efficiency in using the radiation available during the season can be improved by practicing IRWH techniques. Furthermore, in semi -arid areas, to enhance the efficiency of water and radiation usage in intercropping management, it is crucial to adjust plant population and sowing dates based on water availability and the onset of rainfall.
英文关键词	evapotranspiration radiation interception radiation use efficiency soil water balance water productivity
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:001055548000001
WOS关键词	PHASEOLUS-VULGARIS ; RESOURCE CAPTURE ; ZEA-MAYS ; PRODUCTIVITY ; RUNOFF ; INTENSIFICATION ; LEGUME ; YIELD ; INOCULATION ; REGION
WOS类目	Plant Sciences
WOS研究方向	Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398088
推荐引用方式 GB/T 7714	Tesfuhuney, Weldemichael,Ravuluma, Muthianzhele,Dzvene, Admire Rukudzo,et al. In-Field Rainwater Harvesting Tillage in Semi-Arid Ecosystems: II Maize-Bean Intercrop Water and Radiation Use Efficiency[J],2023,12(16).
APA	Tesfuhuney, Weldemichael.,Ravuluma, Muthianzhele.,Dzvene, Admire Rukudzo.,Bello, Zaid.,Andries, Fourie.,...&Cammarano, Davide.(2023).In-Field Rainwater Harvesting Tillage in Semi-Arid Ecosystems: II Maize-Bean Intercrop Water and Radiation Use Efficiency.PLANTS-BASEL,12(16).
MLA	Tesfuhuney, Weldemichael,et al."In-Field Rainwater Harvesting Tillage in Semi-Arid Ecosystems: II Maize-Bean Intercrop Water and Radiation Use Efficiency".PLANTS-BASEL 12.16(2023).