干旱区生态环境知识资源中心(Arid): Alternate wetting and drying: a water-saving technology for sustainable rice production in Burkina Faso?

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DOI	10.1007/s10705-024-10360-x
	Alternate wetting and drying: a water-saving technology for sustainable rice production in Burkina Faso?
	Johnson, Jean-Martial; Becker, Mathias; Kabore, Jean Eric P.; Dossou-Yovo, Elliott Ronald; Saito, Kazuki
通讯作者	Johnson, JM
来源期刊	NUTRIENT CYCLING IN AGROECOSYSTEMS
ISSN	1385-1314
EISSN	1573-0867
出版年	2024
卷号	129 期号:1 页码:93-111
英文摘要	With emerging water scarcity and rising fertilizer prices, optimising future water use while maintaining yield and nutrient efficiency in irrigated rice is crucial. Alternate wetting and moderate soil drying irrigation (i.e., re-irrigation when the water level reaches 15 cm below the soil surface) has proven to be an efficient water-saving technology in semi-arid zones of West Africa, reducing water inputs without yield penalty. Alternate wetting and severe soil drying (AWD30), by re-irrigating fields only when the water table reaches 30 cm below the soil surface, may further reduce water inputs compared to farmers' irrigation practices (FP). However, acute soil drying may impair fertilizer use efficiency and reduce the bio-availability of some key nutrients. This study assessed the potentials and risks associated with AWD30 for smallholder rice farmers in the semi-arid zones of West Africa. We conducted 30 on-farm field trials over three seasons (wet and dry seasons of 2019, and dry season of 2020), in Kou Valley, Burkina Faso. We assessed yield, water productivity, nutrient uptake, and use efficiency under AWD30 and FP. In FP, farmers maintained their fields submerged as frequently as possible according to the scheme-dependent water provision schedule. With AWD30, irrigation frequency was reduced by 30%, however, soils were seldom completely dried due to a shallow groundwater table. Compared to FP, AWD30 reduced irrigation water input by 37% with no significant effects on grain yields (average of 4.5 Mg ha(-1)), thus increasing average water productivity by 39%. Both irrigation management practices provided comparable crop uptake of N, P, and K, and use efficiencies of applied N and P. However, the N content in straw and the P concentration in grain generally increased with total water input (rain + irrigation). We conclude that at locations with a shallow groundwater table, AWD30 can effectively save irrigation water without significantly reducing the grain yield and the use efficiency of applied mineral nutrients.
英文关键词	Nutrient use efficiency Nutrient uptake Oryza spp. Water scarcity West Africa
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:001260382000001
WOS关键词	PHOSPHORUS USE EFFICIENCY ; LOWLAND RICE ; GRAIN-YIELD ; IRRIGATION MANAGEMENT ; PRODUCTION SYSTEMS ; FLOODED SOILS ; NITROGEN ; FERTILIZER ; AVAILABILITY ; GROWTH
WOS类目	Soil Science
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/2XILL650/404992
推荐引用方式 GB/T 7714	Johnson, Jean-Martial,Becker, Mathias,Kabore, Jean Eric P.,et al. Alternate wetting and drying: a water-saving technology for sustainable rice production in Burkina Faso?[J],2024,129(1):93-111.
APA	Johnson, Jean-Martial,Becker, Mathias,Kabore, Jean Eric P.,Dossou-Yovo, Elliott Ronald,&Saito, Kazuki.(2024).Alternate wetting and drying: a water-saving technology for sustainable rice production in Burkina Faso?.NUTRIENT CYCLING IN AGROECOSYSTEMS,129(1),93-111.
MLA	Johnson, Jean-Martial,et al."Alternate wetting and drying: a water-saving technology for sustainable rice production in Burkina Faso?".NUTRIENT CYCLING IN AGROECOSYSTEMS 129.1(2024):93-111.