干旱区生态环境知识资源中心(Arid): Sesame Sole Crop and Intercrop Response to Fertilizer in Semi-Arid Niger

Arid

DOI	10.2134/agronj2018.12.0756
	Sesame Sole Crop and Intercrop Response to Fertilizer in Semi-Arid Niger
	Maman, Nouri 1; Garba, Maman 2; Abdou, Gonda 2; Wortmann, Charles S.3
通讯作者	Wortmann, Charles S.
来源期刊	AGRONOMY JOURNAL
ISSN	0002-1962
EISSN	1435-0645
出版年	2019
卷号	111 期号:4 页码:2069-2074
英文摘要	Sesame (Sesamum indicum L.) is a market crop of small-scale farmers, particularly women, in the Sahel. Guidelines for soil fertility management may help to boost the productivity and profitability of sesame production. Research was conducted in 2016 and 2017 at Maradi and Magaria in Niger to determine nutrient response functions for sesame as a sole crop and intercropped with pearl millet (Pennisetum glaucum L.). Sesame yield was doubled with high consistency across site-years with 30 kg P ha(-1) applied and the P response function was determined. Sesame yield was not increased with N and K application. Manure application increased sesame grain yield by 25% when no fertilizer was applied and by 6% with 15 kg P ha(-1). The estimated fertilizer P equivalent value of manure P was 1.72 kg kg(-1) for no fertilizer P, indicating that manure application increased crop uptake capacity for indigenous soil P through, for example, increased root growth. Intercropped sesame and pearl millet yields decreased by about 41% of sole crop yields on average but the land equivalent ratio was about 1.2 with intercropping compared with sole crop production. The economically optimal P application rate ranged from 14 to 34 kg P ha(-1) for sesame sole crop and from 0 to 15 kg P ha(-1) for the intercrop with pearl millet, with the ranges resulting from varying fertilizer P use costs relative to crop value. Fertilizer P use has high profit potential for sesame sole crops in the Sahel but less potential for sesame-millet intercrops.
类型	Article
语种	英语
国家	Niger ; USA
收录类别	SCI-E
WOS记录号	WOS:000476472300051
WOS关键词	NUTRIENTS
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/2XILL650/214082
作者单位	1.Inst Natl Rech Agronom Niger, BP 240, Maradi, Niger; 2.Inst Natl Rech Agronom Niger, BP 429, Niamey, Niger; 3.Univ Nebraska, Dept Agron & Hort, Lincoln, NE 68583 USA
推荐引用方式 GB/T 7714	Maman, Nouri,Garba, Maman,Abdou, Gonda,et al. Sesame Sole Crop and Intercrop Response to Fertilizer in Semi-Arid Niger[J],2019,111(4):2069-2074.
APA	Maman, Nouri,Garba, Maman,Abdou, Gonda,&Wortmann, Charles S..(2019).Sesame Sole Crop and Intercrop Response to Fertilizer in Semi-Arid Niger.AGRONOMY JOURNAL,111(4),2069-2074.
MLA	Maman, Nouri,et al."Sesame Sole Crop and Intercrop Response to Fertilizer in Semi-Arid Niger".AGRONOMY JOURNAL 111.4(2019):2069-2074.