干旱区生态环境知识资源中心(Arid): Bi-cropping of castor bean and nutri-millets optimizes system productivity, energy efficiency, and carbon footprint in rainfed alfisols of semi-arid tropics

Arid

DOI	10.1080/15324982.2024.2312888
	Bi-cropping of castor bean and nutri-millets optimizes system productivity, energy efficiency, and carbon footprint in rainfed alfisols of semi-arid tropics
	Kumar, Revappa Mohan; Yamanura, Madival; Venkatesh, Paramesh; Narayanappa, Nagesha
通讯作者	Venkatesh, P
来源期刊	ARID LAND RESEARCH AND MANAGEMENT
ISSN	1532-4982
EISSN	1532-4990
出版年	2024
卷号	38 期号:3 页码:464-488
英文摘要	Intercropping enhances diversity, productivity, resilience, and soil health. To achieve these benefits of the intercropping system, drilling patterns and species mixture play a key role. Therefore, to optimize the productivity, profitability, energetics, and carbon footprint of the castor-based millet intercropping system, a field experiment was conducted for two consecutive kharif seasons (2020 - 2021 and 2021 - 2022) at the University of Agricultural Sciences, Bangalore, Karnataka (India). The results revealed that all the crops under monoculture outperformed their intercropping system for seed and stalk/stover yield. Among the different cropping systems, castor + finger millet (2:4) showed highest castor equivalent yield (CEY; 1911 kg ha-1) due to excellent land utilization efficiency (LUE; 106%), land equivalent ratio (LER; 1.13), land equivalent co-efficient (LEC; 0.32) compared to other cropping systems. Castor + finger millet (2:4) was even found superior in terms of monetary returns. Finger millet monoculture showed the highest energy consumption (10,770 MJ ha-1), energy output (96,507 MJ ha-1), and also net energy gain (85,737 MJ ha-1) compared to other cropping systems. However, it was comparable with castor + finger millet (2:4) despite its modest energy consumption (10,530 MJ ha-1). Castor monoculture showed the highest carbon (C) emission (2045 kg CO2-eq. ha-1) and also C output (1760 kg CE ha-1). While, net C gain (1210 kg CE ha-1), C efficiency (3.39 kg kg-1 CE), and C stability index (2.39) were highest in the castor + finger millet intercropping system. Consequently, the adoption of a castor + finger millet (2:4) intercropping system will be a viable alternative for achieving enhanced system productivity, and energy efficiency with lower C-footprints under semi-arid regions.
英文关键词	Carbon footprint economics energy equivalent yield production efficiency
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001162975600001
WOS关键词	CONSERVATION ; AGRICULTURE ; EMISSIONS ; YIELD
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402948
推荐引用方式 GB/T 7714	Kumar, Revappa Mohan,Yamanura, Madival,Venkatesh, Paramesh,et al. Bi-cropping of castor bean and nutri-millets optimizes system productivity, energy efficiency, and carbon footprint in rainfed alfisols of semi-arid tropics[J],2024,38(3):464-488.
APA	Kumar, Revappa Mohan,Yamanura, Madival,Venkatesh, Paramesh,&Narayanappa, Nagesha.(2024).Bi-cropping of castor bean and nutri-millets optimizes system productivity, energy efficiency, and carbon footprint in rainfed alfisols of semi-arid tropics.ARID LAND RESEARCH AND MANAGEMENT,38(3),464-488.
MLA	Kumar, Revappa Mohan,et al."Bi-cropping of castor bean and nutri-millets optimizes system productivity, energy efficiency, and carbon footprint in rainfed alfisols of semi-arid tropics".ARID LAND RESEARCH AND MANAGEMENT 38.3(2024):464-488.