干旱区生态环境知识资源中心(Arid): Energy and carbon budgeting in a soybean-wheat system in different tillage, irrigation and fertilizer management practices in South-Asian semi-arid agroecology

Arid

DOI	10.1016/j.eja.2023.126877
	Energy and carbon budgeting in a soybean-wheat system in different tillage, irrigation and fertilizer management practices in South-Asian semi-arid agroecology
	Rajanna, G. A.; Dass, Anchal; Singh, Vinod K.; Choudhary, Anil. K.; Paramesh, Venkatesh; Babu, Subhash; Upadhyay, Pravin K.; Sannagoudar, Manjanagouda S.; Ajay, B. C.; Reddy, K. Viswanatha
通讯作者	Rajanna, GA ; Singh, VK
来源期刊	EUROPEAN JOURNAL OF AGRONOMY
ISSN	1161-0301
EISSN	1873-7331
出版年	2023
卷号	148
英文摘要	The sustainability of agricultural production systems is significantly threatened due to climate change and land degradation. Agricultural practices like conventional tillage with imbalanced fertilizers, and indiscriminate irrigation have serious environmental implications like higher greenhouse gas (GHG) emissions. Therefore, we assessed the three-year productivity, effectiveness of energy, and carbon (C) footprint of soybean-wheat system under different tillage techniques [zero-till fiat beds (ZTFB), conventional till-raised beds (CTRB), and conven-tional till-fiat beds (CTFB)], irrigation regimes [irrigation at 25%, 50%, and 75% depletion of available soil moisture (DASM)] and fertilizer rates [50% and 100% recommended rates of fertilizers (RRF). The study was conducted for three years in a fixed-field plots using split-split plot design with three replications. The results show that conventional till-raised bed (CTRB) recorded higher system crop productivity (9.5-15.2%), energy-efficiency (17.3), C-output (6424), C-efficiency (11.7), C-sustainability index (9.73), net-returns (1035 US$ ha-1) and the least C-footprints (0.19) over conventional till-fiat beds (CTFB) and zero till-fiat beds (ZTFB). Whereas, residue mulched ZTFB plots exhibited-24.2% higher system water productivity and consumed less energy (-77.0%) over others. Irrigation applied at 25% depletion of available soil moisture (DASM25%) led to higher system productivity (5.96 Mg ha-1), energy output (232.6 GJ ha-1), energy-efficiency (13.4) and C-output (6657.4 kg CE ha-1) compared to DASM75% and DASM50%. Interestingly, C-footprints increased with ZTFB while least C-footprints were found under CTRB and CTFB. Consequently, the adaptation of CTRB with optimal irrigation and fertilizers will be a viable alternative for achieving improved system production, energy efficiency with a lower C-footprint under semi-arid regions.
英文关键词	Energy dynamics C-sustainability index Irrigation Raised bed planting Water productivity
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001010408900001
WOS关键词	CROPPING SYSTEM ; USE EFFICIENCY ; CONSERVATION AGRICULTURE ; WATER-USE ; MAIZE ; PRODUCTIVITY ; FOOTPRINT ; ROTATION ; YIELD
WOS类目	Agronomy
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/2XILL650/396323
推荐引用方式 GB/T 7714	Rajanna, G. A.,Dass, Anchal,Singh, Vinod K.,et al. Energy and carbon budgeting in a soybean-wheat system in different tillage, irrigation and fertilizer management practices in South-Asian semi-arid agroecology[J],2023,148.
APA	Rajanna, G. A..,Dass, Anchal.,Singh, Vinod K..,Choudhary, Anil. K..,Paramesh, Venkatesh.,...&Reddy, K. Viswanatha.(2023).Energy and carbon budgeting in a soybean-wheat system in different tillage, irrigation and fertilizer management practices in South-Asian semi-arid agroecology.EUROPEAN JOURNAL OF AGRONOMY,148.
MLA	Rajanna, G. A.,et al."Energy and carbon budgeting in a soybean-wheat system in different tillage, irrigation and fertilizer management practices in South-Asian semi-arid agroecology".EUROPEAN JOURNAL OF AGRONOMY 148(2023).