干旱区生态环境知识资源中心(Arid): Increasing Millet Planting Density with Appropriate Fertilizer to Enhance Productivity and System Resilience in Senegal

Arid

DOI	10.3390/su15054093
	Increasing Millet Planting Density with Appropriate Fertilizer to Enhance Productivity and System Resilience in Senegal
	Faye, Aliou; Akplo, Tobi Moriaque; Stewart, Zachary. P. P.; Min, Doohong; Obour, Augustine. K. K.; Assefa, Yared; Prasad, P. V. Vara
通讯作者	Faye, A
来源期刊	SUSTAINABILITY
EISSN	2071-1050
出版年	2023
卷号	15 期号:5
英文摘要	Climate forecasts show increased frequency and intensity of drought in the semi-arid regions of west Africa, which negatively impacts food and nutrition security. Developing and improving resilient cropping systems will require adequate varieties with improved agronomic practices. The purpose of the study was to evaluate grain and biomass production of newly released dual-purpose millet varieties under different fertilizer rates and planting densities across the millet-cropping regions of Senegal with different rainfall regimes (Bambey: 600 mm, Boulel: 700 mm, Nioro: 650 mm, and Sinthiou Maleme: 800 mm). The experimental design was a split-split-plot with three replicates using one traditional variety (Souna 3) and four dual-purpose varieties (Thialack 2, SL28, SL 169, and SL423) as the main factor; two planting densities (E1: 12,500 seed hills ha(-1) and E2: 25,000 seed hills ha(-1)) as second factor; and eight fertilizer combination as sub-sub-plots. Results showed that variety yield response differed with environments. Regardless of variety, increasing sowing density increased grain yields (1600 kg ha(-1) for E2 vs. 1000 kg ha(-1) for E1) and fodder yields (4200 kg ha(-1) for E2 vs. 3100 kg ha(-1) for E1). Fertilizer response differed between environments, but the application of 70N-10P-19K + 2.5 t ha(-1) cow manure produced appreciable yields in all the environments. The dual-purpose varieties (SL 28, SL 169, and Thialack 2) sown at E2 produced the best grain and fodder yields. Soil water content was greater for all varieties (Thialack 2: 12.32%; Souna 3: 5.32%; SL28: 6.32%; and SL423: 9.23%) at higher planting density compared with normal density (Thialack 2: 9.25%; Souna 3: 3.21%; SL28: 5.43%; and SL423: 7.47%). The highest agronomic-use efficiency (AEg) of inorganic fertilizer applied was observed at 25,000 seed hill ha(-1) and averaged 6.63 kg kg(-1) at Boulel, 9.20 kg kg(-1) at Sinthiou Maleme, 4.67 kg kg(-1) at Bambey, and 8.32 at Nioro kg kg(-1). The AEg significantly varied among fertilizer combinations, with greatest AEg obtained with 70N-22.5P-22.5K (5.53 kg kg(-1)) at Boulel and with 95N-17P-27K (4.66 kg kg(-1)) at Bambey. This study provides crop-management options for millet-cropping systems in the semi-arid regions of west Africa for improving millet productivity while enhancing system resilience through better conservation and utilizing of soil water.
英文关键词	yield agronomic-use efficiency semi-arid tropics varieties planting density
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000948303800001
WOS关键词	WATER-USE EFFICIENCY ; PEARL-MILLET ; SOIL FERTILITY ; MAIZE ; YIELD ; LAND ; IMPACT ; CATTLE ; CROPS ; FOOD
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398768
推荐引用方式 GB/T 7714	Faye, Aliou,Akplo, Tobi Moriaque,Stewart, Zachary. P. P.,et al. Increasing Millet Planting Density with Appropriate Fertilizer to Enhance Productivity and System Resilience in Senegal[J],2023,15(5).
APA	Faye, Aliou.,Akplo, Tobi Moriaque.,Stewart, Zachary. P. P..,Min, Doohong.,Obour, Augustine. K. K..,...&Prasad, P. V. Vara.(2023).Increasing Millet Planting Density with Appropriate Fertilizer to Enhance Productivity and System Resilience in Senegal.SUSTAINABILITY,15(5).
MLA	Faye, Aliou,et al."Increasing Millet Planting Density with Appropriate Fertilizer to Enhance Productivity and System Resilience in Senegal".SUSTAINABILITY 15.5(2023).