Impact of previous legumes on millet mycorrhization and yields in sandy soil of West African Sahel

Gaston, S and Dahiratou, I D and Moussa, B and Fatondji, D (2017) Impact of previous legumes on millet mycorrhization and yields in sandy soil of West African Sahel. Journal of Soil Science and Environmental Management, 8 (10). pp. 164-189. ISSN 2141-2391

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A preliminary study was conducted during the raining seasons 2012 through 2015 to assess the status of arbuscular mycorrhiza fungi associated with 4 legumes and millet on the sandy soil of Sadoré, Niger. A factorial completely randomized block design was used for the layout. Crop roots parameters of mycorrhization and soil fungi spore density and biodiversity were investigated as responses to varied planting densities, rates of rock phosphate, and of urea application on millet monoculture. Spores of Glomus were present in 100% of plots with respectively 96%, 47%, 77%, and 13% as relative frequency during rainy seasons 2012, 2013, 2014, and 2015; but spores of Gigaspora were present in 70% of plots and with 3.63%, 4%, 1.38%, and 1% as relative frequency the same years. Spore density/100g of root zone soil varied with crop species and rate of applied crop residue. The maximum intensity of mycorrhization was 78% while the arbuscular had a rate of 48% as maximum. The parameters of mycorrhization were influenced by the crop species but not by the rates of applied rock phosphate and the rate of returned crop residues as well. Millet yield in monoculture was affected by residual effects of previous basis legume crop.

Item Type: Article
Divisions: Research Program : West & Central Africa
Uncontrolled Keywords: Preceding crops, millet mycorrhiza, residue, sandy soil, Niger
Subjects: Mandate crops > Millets
Others > Soil
Others > Legume Crops
Others > Sahel Region
Others > West Africa
Depositing User: Mr Ramesh K
Date Deposited: 28 Dec 2017 05:35
Last Modified: 14 Mar 2018 07:15
Official URL:
Acknowledgement: The authors would like to thank Dr. Tabo, the ICRISAT Regional programme Director for West and Central Africa and Dr. Ba, ICRISAT Country Representative in Niger, for supporting and facilitating this research. The author also acknowledged the special assistance and support of the following ICRISAT Niamey scientists and staffs: Dr. Bado Vincent, Dr. Savadogo, Dr. Prakash, Mr. Harouna Dodo, and Mr. Dioffo. They also appreciated the help of Mr. Illo Amadou and Mme Haouaa Hama of the Analytical laboratory, ICRISAT Sadore, Niamey. They also appreciate the following students of the University Adbou Moumouni: Mr. Zangui, Abdoulaye, Fidel, Haidara, Chekaraou, Seydou, Ms. Aicha and Aichatou.
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