干旱区生态环境知识资源中心(Arid): Optimal Sowing Windows under Rainfall Variability in Rainfed Agriculture in West Africa

Arid

DOI	10.3390/agronomy13010167
	Optimal Sowing Windows under Rainfall Variability in Rainfed Agriculture in West Africa
	Agoungbome, Sehouevi Mawuton David; ten Veldhuis, Marie-Claire; van de Giesen, Nick
通讯作者	Agoungbome, SMD
来源期刊	AGRONOMY-BASEL
EISSN	2073-4395
出版年	2023
卷号	13 期号:1
英文摘要	Climate change is exacerbating adverse impacts of water stress in rainfed agriculture. This paper seeks to identify safe sowing windows for smallholder farmers in the Sudanian region of West Africa (WA). We hypothesize that the traditional focus on the onset of the season to start sowing leads to crop losses in years of high rainfall intermittency. AquaCrop, an FAO crop model, is used to simulate the yield response of maize (Zea mays L.) to sowing dates ranging from the 1st of May to the 30th of November at 20 locations in WA. We find that sowing directly after the first rains carries a higher risk of water stress, hampering crop development due to insufficient buildup of soil water storage to overcome dry spells. Based on three years of data per station on average, we identify safe sowing windows across the Sudanian region that secure optimal yield in 97% of all cases. We find that delaying sowing to mid-June (savanna and western part of the region) and to July (semi-arid region) ensures optimal yields. Of the three commonly applied local onset approaches covered in our evaluation, only LO10mm (10 mm/day on four consecutive days) achieves a similar yield result. The advantage of the safe window approach is that it is accessible for smallholders, who in many cases do not have access to local rainfall information.
英文关键词	onset variability false start rainfall intermittency AquaCrop
类型	Article
语种	英语
开放获取类型	gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000914263700001
WOS关键词	SIMULATE YIELD RESPONSE ; FAO CROP MODEL ; AQUACROP MODEL ; GROWING-SEASON ; MONSOON ONSET ; DRY SPELLS ; MAIZE ; PARAMETERIZATION ; PREDICTABILITY ; NIGERIA
WOS类目	Agronomy ; Plant Sciences
WOS研究方向	Agriculture ; Plant Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/395184
推荐引用方式 GB/T 7714	Agoungbome, Sehouevi Mawuton David,ten Veldhuis, Marie-Claire,van de Giesen, Nick. Optimal Sowing Windows under Rainfall Variability in Rainfed Agriculture in West Africa[J],2023,13(1).
APA	Agoungbome, Sehouevi Mawuton David,ten Veldhuis, Marie-Claire,&van de Giesen, Nick.(2023).Optimal Sowing Windows under Rainfall Variability in Rainfed Agriculture in West Africa.AGRONOMY-BASEL,13(1).
MLA	Agoungbome, Sehouevi Mawuton David,et al."Optimal Sowing Windows under Rainfall Variability in Rainfed Agriculture in West Africa".AGRONOMY-BASEL 13.1(2023).