干旱区生态环境知识资源中心(Arid): Yield-limiting macronutrients for rice in sub-Saharan Africa

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DOI	10.1016/j.geoderma.2018.11.036
	Yield-limiting macronutrients for rice in sub-Saharan Africa
	Saito, Kazuki 1; Vandamme, Elke 2; Johnson, Jean-Martial 1,3; Tanaka, Atsuko 4; Senthilkumar, Kalimuthu 5; Dieng, Ibnou 1; Akakpo, Cyriaque 6; Gbaguidi, Felix 7; Segda, Zacharie 8,9; Bassoro, Ibrahim 10; Lamare, Delphine 10; Gbakatchetche, Henri 11; Abera, Bayuh Belay 12; Jaiteh, Famara 13; Bam, Ralph Kwame 14; Dogbe, Wilson 15; Sekou, Keita 16; Rabeson, Raymond 17; Kamissoko, Nianankoro 18; Mossi, Illiassou Maiga 19; Tarfa, Bitrus Dawi 20; Bakare, Samuel Oladele 21; Kalisa, Alain 22; Baggie, Idriss 23; Kajiru, Geophrey Jasper 24; Ablede, Komlan 25; Ayeva, Tchatchibara 25; Nanfumba, David 26; Wopereis, Marco C. S.27
通讯作者	Saito, Kazuki
来源期刊	GEODERMA
ISSN	0016-7061
EISSN	1872-6259
出版年	2019
卷号	338 页码:546-554
英文摘要	Nutrient deficiencies are considered major constraints to rice production in sub-Saharan Africa (SSA), but a systematic, continent-wide analysis of these constraints is lacking. The objective of this study was to assess responses of rice yields to macronutrients (N, P, and K) across major rice production systems [irrigated lowland rice (IL), rainfed lowland rice (RL), and rainfed upland rice (RU)] and diverse agro-ecological zones (semi-arid, sub-humid, humid, and highlands) in SSA. Diagnostic trials were conducted in 17 countries in 18-60 farmers' fields in each of 30 sites (totaling 1037 farmers' fields), of which 12 sites were in IL, 15 in RL and 3 in RU. All trials had an NPK treatment, and three treatments in which either nitrogen (N), phosphorus (P), or potassium (K) was omitted from the NPK treatment (minus N, P, and K plots). The trials were conducted during one or two seasons. Regression between yields in the NPK and minus N plots was used for calculating N fertilizer requirement, following the approach used for the development of a nutrient management decision support tool for rice (RiceAdvice) in SSA. Site mean yields in the NPK treatment ranged from 1.4 to 7.3 t ha(-1). On average, these yields were 1.1 t ha(-1) higher than farmers' yields previously observed in the same sites. N was generally the most limiting nutrient, followed by P. Rice yields without N, P, and K were 68, 84, and 89% of yields in the NPK treatment, and were positively correlated with those in the NPK treatment irrespective of production systems and agro-ecological zone (AEZ). Results from a regression model across sites indicated that achieving 3, 5, and 7 t ha(-1) requires N fertilizer application at an average rate of 56, 91, and 122 kg N ha(-1), respectively. However, there was significant treatment by site interaction on rice yield. Site mean yields were significantly lower without N, P, and K in 93, 60, and 50% of sites as compared to the NPK treatment. Yield response to macronutrients varied across sites and was not related to production system, nor AEZ. Results from this study will help further improvement of RiceAdvice for providing decision support tailored to the particular site, zone, or production system, thereby closing yield gaps, improving fertilizer nutrient efficiency and preventing negative environmental consequences of fertilizer use.
英文关键词	Oryza spp. Nitrogen Phosphorus Potassium Site-specific nutrient management Nutrient omission trial
类型	Article
语种	英语
国家	Cote Ivoire ; Rwanda ; Germany ; Benin ; Madagascar ; Burkina Faso ; Cameroon ; Ethiopia ; Gambia ; Ghana ; Guinea ; Mali ; Niger ; Nigeria ; Sierra Leone ; Tanzania ; Togo ; Uganda ; Taiwan
收录类别	SCI-E
WOS记录号	WOS:000457657000053
WOS关键词	IMPROVE FERTILIZER RECOMMENDATIONS ; IRRIGATED LOWLAND RICE ; NUTRIENT MANAGEMENT ; SOIL FERTILITY ; UPLAND RICE ; SYSTEMS ; PHOSPHORUS ; NITROGEN ; FIELD ; REQUIREMENTS
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/2XILL650/215926
作者单位	1.Africa Rice Ctr AfricaRice, 01 BP 2551, Bouake 01, Cote Ivoire; 2.Int Potato Ctr CIP, POB 1269, Kigali, Rwanda; 3.Univ Bonn, Inst Crop Sci & Resource Conservat INRES, D-53115 Bonn, Germany; 4.Africa Rice Ctr AfricaRice, 01 BP 2031, Cotonou, Benin; 5.Africa Rice Ctr AfricaRice, POB 1690, Antananarivo, Madagascar; 6.INRAB, BP 226, Bohicon, Benin; 7.DGR, CBF, BP 268, Porto Novo, Benin; 8.Inst Environm & Rech Agr CNRST INERA, Ctr Natl Rech Sci & Technol, Bobo Dioulasso, Burkina Faso; 9.Bur Natl Sols BUNASOLS, 03 BP 7142, Ouagadougou 03, Burkina Faso; 10.IRAD, BP 2123, Yaounde, Cameroon; 11.CNRA, BP 440, Man, Cote Ivoire; 12.EIAR, POB 1745, Bahir Dar, Ethiopia; 13.NARI, PMB 144, Brikama, Gambia; 14.CSIR Crops Res Inst, POB 3785, Kumasi, Ghana; 15.CSIR Savanna Agr Res Inst SARI, POB 52, Tamale, Ghana; 16.IRAG, BP 1523, Conakry, Guinea; 17.Ctr Natl Rech Appl Dev Rural FOFIFA, Antananarivo, Madagascar; 18.CRRA Niono, IER, BP 258, Niono, Mali; 19.INRAN, BP 429, Niamey, Niger; 20.Ahmadu Bello Univ, Dept Soil Sci, Fac Agr, Zaria, Nigeria; 21.NCRI, PMB 8, Badeggi, Niger, Nigeria; 22.RAB, POB 5016, Kigali, Rwanda; 23.SLARI, RARC, PMB 736, Freetown, Sierra Leone; 24.Tanzania Agr Res Inst, POB 2066, Dar Es Salaam, Tanzania; 25.ITRA, BP 1163, Lome, Togo; 26.NARO, Mbale, Uganda; 27.World Vegetable Ctr, POB 42, Tainan 74199, Taiwan
推荐引用方式 GB/T 7714	Saito, Kazuki,Vandamme, Elke,Johnson, Jean-Martial,et al. Yield-limiting macronutrients for rice in sub-Saharan Africa[J],2019,338:546-554.
APA	Saito, Kazuki.,Vandamme, Elke.,Johnson, Jean-Martial.,Tanaka, Atsuko.,Senthilkumar, Kalimuthu.,...&Wopereis, Marco C. S..(2019).Yield-limiting macronutrients for rice in sub-Saharan Africa.GEODERMA,338,546-554.
MLA	Saito, Kazuki,et al."Yield-limiting macronutrients for rice in sub-Saharan Africa".GEODERMA 338(2019):546-554.