Rhizobial Populations in Soils from Natural Acacia senegal and Acacia nilotica Forests in Mauritania and the Senegal River Valley

2005 ◽  
Vol 50 (2) ◽  
pp. 152-162 ◽  
Author(s):  
Amadou Sarr ◽  
Marc Neyra ◽  
Mouhamed Abdeljalil Ould Houeibib ◽  
Ibrahima Ndoye ◽  
Abdallah Oihabi ◽  
...  
Keyword(s):  
River Valley ◽  
Acacia Nilotica ◽  
Acacia Senegal ◽  
Senegal River

scholarly journals Experience in solving problems of Mauritanian refugees in Senegal River Valley

2016 ◽  
pp. 79-86
Author(s):  
Aleksandr V. Makutchev ◽  
Keyword(s):  
River Valley ◽  
Senegal River

scholarly journals Controlling plant-parasitic nematodes in sandy soil in the Senegal River Valley using composts based on potentially nematicidal plants

2020 ◽  
Vol 145 ◽  
pp. 14892-14901
Author(s):  
Saïdou Nourou Sall ◽  
◽  
Ngom Florence Khady ◽  
Sidy Diakhate ◽  
Keyword(s):  
Sandy Soil ◽  
River Valley ◽  
Parasitic Nematodes ◽  
Plant Parasitic Nematodes ◽  
Senegal River ◽  
Plant Parasitic

Estimating Bird Damage to Rice in Africa: Evidence from the Senegal River Valley

2011 ◽  
Vol 63 (1) ◽  
pp. 175-200 ◽  
Author(s):  
Yann de Mey ◽  
Matty Demont ◽  
Mandiaye Diagne
Keyword(s):  
River Valley ◽  
Senegal River ◽  
Bird Damage

Mauritania's Foreign Policy: the Search for Protection

1992 ◽  
Vol 30 (2) ◽  
pp. 281-304 ◽  
Author(s):  
Anthony G. Pazzanita
Keyword(s):  
Foreign Policy ◽  
Economic Condition ◽  
River Valley ◽  
Islamic Republic ◽  
Fault Line ◽  
North African ◽  
Black African ◽  
Senegal River ◽  
Arab League ◽  
Per Capita

Of the 21 members of the Arab League, the Islamic Republic of Mauritania has received perhaps the least attention, ranking far behind other North African states, much less those closer to the Arab—Israeli fault-line or the recent Gulf conflict. Mauritania's desperate economic condition (a G.N.P. per capita of only $446 in 1984) has been occasionally publicised, as well as advancing desertification (reaching even into the centre of the capital, Nouakchott), and the tensions between the ruling Beydane (‘white’) Arabs, supported by their cultural/political allies, and the black African tribes concentrated in the Senegal River valley that erupted into violence in April 1989, and which led to a near-war between Senegal and Mauritania.

An environmental history of literary resilience: “Environmental refugees” in the Senegal River Valley

2018 ◽  
Vol 54 (6) ◽  
pp. 821-834
Author(s):  
Mélanie Bourlet ◽  
Marie Lorin
Keyword(s):  
Environmental History ◽  
River Valley ◽  
Senegal River ◽  
Environmental Refugees ◽  
History Of

scholarly journals Actual evapotranspiration and crop coefficients of irrigated lowland rice (Oryza sativa L.) under semiarid climate

2019 ◽  
Vol 14 (1) ◽  
pp. 19-25
Author(s):  
Koffi Djaman ◽  
Daran R. Rudnick ◽  
Yonnelle D. Moukoumbi ◽  
Abdoulaye Sow ◽  
Suat Irmak
Keyword(s):  
Irrigation Water ◽  
Field Experiments ◽  
Dry Season ◽  
River Valley ◽  
Rice Production ◽  
Annual Rainfall ◽  
Growth Stages ◽  
Research Station ◽  
Senegal River ◽  
Crop Coefficients

Lowland irrigated rice is the predominant crop produced in the Senegal River Valley characterised by very low annual rainfall, high temperatures, and low relative humidity. The Senegal River is shared by Senegal, Mali, Mauritania, and Guinea, and serves as the main source of irrigation water for the adopted double rice cropping system. Developing appropriate resource management strategies might be the key factor for the sustainability of rice production in the region. This study aims to estimate rice seasonal evapotranspiration (ETa), irrigation water requirement, and to develop rice growth stage specific crop coefficients (Kc) to improve rice water productivity. Field experiments were conducted during the hot and dry seasons in 2014 and 2015 at the AfricaRice research station at Fanaye in Senegal. Irrigation water inputs were monitored and actual crop evapotranspiration was derived using the water balance method. Daily reference evapotranspiration (ETo) was estimated using the Penman-Monteith equation and the weather variables were collected at the site by an automated weather station. The results showed that the ETo during the hot and dry season from February 15th to June 30th varied from 4.5 to 9.9 mm and from 3.7 to 10.8 mm in 2014 and 2015, respectively, and averaged 6.8 mm d–1 in 2014 and 6.6 mm d–1 in 2015. The seasonal irrigation water amount for the transplanted rice was 1110 mm in 2014 and 1095 mm in 2015. Rice daily ETa varied from 4.7 to 10.5 mm in 2014 and from 4.4 to 10.5 mm in 2015 and averaged 8.17 mm in 2014 and 8.14 mm in 2015. Rice seasonal ETa was 841.5 mm in 2014 and 855.4 mm in 2015. The derived rice Kc values varied from 0.77 to 1.51 in 2014 and 0.85 to 1.50 in 2015. Rice Kc values averaged 1.01, 1.31, and 1.12 for the crop development, mid-season and late season growth stages, respectively. The Kc values developed in this study could be used for water management under rice production during the hot and dry season in the Senegal River Valley.

West African Slavery and Atlantic Commerce: The Senegal River Valley, 1700-1860.

1995 ◽  
Vol 100 (1) ◽  
pp. 203
Author(s):  
Joseph C. Miller ◽  
James F. Searing
Keyword(s):  
West African ◽  
River Valley ◽  
Senegal River
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