干旱区生态环境知识资源中心(Arid): Assessment of Nitrogen Management on Sunflower Yield and Its Economic Response in Smallholder Farms in a Semi-Arid Region

Arid

DOI	10.1007/s42106-022-00224-1
	Assessment of Nitrogen Management on Sunflower Yield and Its Economic Response in Smallholder Farms in a Semi-Arid Region
	Vilvert, Elisa; Zander, Peter; Mgeni, Charles Peter; Sieber, Stefan; Lana, Marcos A.
通讯作者	Lana, MA
来源期刊	INTERNATIONAL JOURNAL OF PLANT PRODUCTION
ISSN	1735-6814
EISSN	1735-8043
出版年	2023
卷号	17 期号:1 页码:109-119
英文摘要	Although sunflower production in Tanzania is increasing, smallholder farmers still face a number of constraints that result in poor yields. Lack or inadequate nutrient supply is one of the main factors limiting crop productivity in Tanzania. However, mineral fertilizer is not always easily available and not economically affordable by smallholder farmers. Therefore, the use of animal manure could be a feasible and financially viable alternative, especially in the Dodoma region, where there is abundant livestock production. The aim is to analyze the effects of different animal manure rates on sunflower yield and the economic response of smallholder farms from Dodoma region. The dataset used in this study was obtained from a 2-year in loco survey. Sunflower yields under different animal manure rates were obtained using a process-based biophysical model, and results linked to an economic assessment. Results considering the 2015 and 2045 period showed a positive effect of animal manure application in sunflower yield (866.8 kg ha(-1)) under manure rate limiting 5000 kg ha(-1). The high rates of animal manure showed a decrease on yield providing evidence that water stress becomes the main limit factor for sunflower growth. Taking the economic assessment into account, an animal manure rate of 3000-5000 kg ha(-1) is the most appropriate fertilization management under the environmental and social conditions of Dodoma region, providing a profitable financial return to the farmers (283-416 USD ha(-1)). Therefore, sunflower is an attractive cash crop for Tanzanian farmers when the soil fertilization is properly managed.
英文关键词	Sunflower Fertilization Tanzania Crop model Economic assessment
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:000885764200001
WOS关键词	MODEL
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/2XILL650/397033
推荐引用方式 GB/T 7714	Vilvert, Elisa,Zander, Peter,Mgeni, Charles Peter,et al. Assessment of Nitrogen Management on Sunflower Yield and Its Economic Response in Smallholder Farms in a Semi-Arid Region[J],2023,17(1):109-119.
APA	Vilvert, Elisa,Zander, Peter,Mgeni, Charles Peter,Sieber, Stefan,&Lana, Marcos A..(2023).Assessment of Nitrogen Management on Sunflower Yield and Its Economic Response in Smallholder Farms in a Semi-Arid Region.INTERNATIONAL JOURNAL OF PLANT PRODUCTION,17(1),109-119.
MLA	Vilvert, Elisa,et al."Assessment of Nitrogen Management on Sunflower Yield and Its Economic Response in Smallholder Farms in a Semi-Arid Region".INTERNATIONAL JOURNAL OF PLANT PRODUCTION 17.1(2023):109-119.