Combined Effects of Legumes with Rock Phosphorus on Rice in West Africa

Somado, Eklou A.; Becker, M.; Kuehne, Ronald F.; Sahrawat, K. L.; Vlek, Paul L. G.

doi:10.2134/agronj2003.1172

Cited by 31 publications

(27 citation statements)

References 29 publications

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“…In SW Niger many studies have been conducted on how to alleviate the notoriously low P status of the dominant acid sandy soils (Bationo and Mokwunye 1991;Kretzschmar et al 1991;Buerkert et al 1998;Buerkert et al 2001;Somado et al 2003). While Squalli and Nadir (1983) suggested the use of soluble superphosphate for arid Moroccan market gardens, in Niamey the locally available inexpensive Tahoua RP (costs were 0.5 € per 10 kg in 2007) of which high agronomic efficiencies for on-farm millet fields were previously reported by Bationo et al (1990), might present an effective way of increasing garden soil P stocks while decreasing N losses during dung storage.…”

Section: Discussionmentioning

confidence: 99%

Nitrogen and carbon losses from dung storage in urban gardens of Niamey, Niger

Předotová

Schlecht

Buerkert

2009

Nutr Cycl Agroecosyst

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Intensive vegetable production in urban and peri-urban agriculture (UPA) of West African cities is characterized by high nutrient inputs. However, little is known about nitrogen (N) and carbon (C) losses in these systems, in particular during the storage of manure, the main organic fertilizer in these systems. We therefore aimed at quantifying gaseous emissions of ammonia (NH 3 ), nitrous oxide (N 2 O), carbon dioxide (CO 2 ) and methane (CH 4 ) as well as leaching losses of C, N, phosphorus (P) and potassium (K) from animal manure stored in vegetable gardens of Niamey, Niger. During a first 3.5-month experiment in the hot dry season, cumulative gaseous N losses, measured with a closed-chamber system, were with 0.11 g kg -1 manure DM highest (P \ 0.05) in the uncovered control treatment accounting for 1.8% of total manure N. Nitrogen losses decreased by 72% under plastic sheet roofing and by 50% under roofing ? ground rock phosphate (RP) application at 333 g kg -1 manure DM. Carbon losses from manure amounted to 73 g kg -1 DM in the control and to 92 g kg -1 DM and 68 g kg -1 DM under roofing and under roofing ? RP, respectively. In a second 3.5-month experiment conducted in the rainy season, C losses from the control were 164 g kg -1 manure DM and reduced to 77 and 65% of the control by roofing and roofing ? RP, respectively. Leaching losses during the rainy season were only observed for the unroofed control and averaged 2.1 g C, 0.05 g N, 0.07 g P and 1.8 g K kg -1 manure DM.

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Section: Discussionmentioning

confidence: 99%

Nitrogen and carbon losses from dung storage in urban gardens of Niamey, Niger

Předotová

Schlecht

Buerkert

2009

Nutr Cycl Agroecosyst

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“…La riziculture pluviale en Afrique de l'Ouest souffre de l'acidite´des sols en de´pit des travaux re´alise´s sur la fertilisation en P (Sahrawat et al 1995 ;Somado et al 2003). Ainsi, les rendements de´passent rarement 1,5 t ha…”

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Réponses des variétés interspécifiques du riz de plateau aux applications de phosphate en zone de forêt au Nigeria

Koné¹,

Diatta²,

Saïdou³

et al. 2009

Can. J. Soil. Sci.

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Pour améliorer la production du riz sur les sols acides en zone de forêt humide de l’Afrique de l’Ouest et approfondir la connaissance de la nutrition en phosphore (P) des variétés interspécifiques du riz de plateau, le potentiel de production de certaines variétés a été évalué à l’application du phosphate sur un hyperdystric ferralsol à Ikwo au Nigeria. Cinq variétés de riz dont un sativa (V1 = WAB 56 - 104) et quatre interspécifiques (V2 = WAB450-1-B-P-38-HB, V3 = WAB450-11-1-P-40-HB, V4 = WAB450-11-1-P-P-40-1-H et V5 = WAB450-24-3-2-P-18-HB) ont été semées dans un dispositif de blocs complets randomisés à trois répétitions. Le phosphore a été appliqué annuellement à 50, 100 et 150 kg P ha-1 sous forme de triple super phosphate-TSP durant trois ans, ou en application unique du phosphate naturel du Mali (Ma) aux doses proportionnelles (150, 300 et 450 kg P ha-1) à la première année de l’étude. Les rendements en grain (1,6-3,7 t ha-1), les efficacités agronomiques (2-40 kg kg-1) et les efficiences agronomiques relatives (5-53 %) ont révélé des différences significatives (P <0,05) entre les interspécifiques selon leurs besoins en P et la meilleure productivité de certains (V3 et V4) d’entre eux sur sol acide par rapport à V1. L’usage combiné de ces variétés et de 30 kg P ha-1 an-1 (Ma) ou 45 kg P ha-1 an-1 (TSP) ont été recommandés pour l’obtention de hauts rendements du riz. Le maintient d’un bon équilibre des rapports des cations (Ca : Mg et K : Mg) dans le sol a été jugé nécessaire pour améliorer la réponse du riz à la fertilisation phosphatée pour une production rizicole durable sur les hyperdystric ferralsols.Mots clés : Afrique de l’Ouest, interspécifiques, riziculture pluviale, hyperdystric ferralsol, phosphate

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“…Many researchers mentioned that PR application as P source with inoculation of Rhizobium was able to increase the performance of legume. Somado et al (2003) observed that in both the pot and field experiments, there was a significant response of legume performance to PR application. Alfalfa responsed to P fertilizer application in latosol soil.…”

Section: Alfalfa Production Used Different P Fertilizersmentioning

confidence: 84%

PHOSPHATE ROCK APPLICATION ON ALFALFA (Medicago sativa L.) PRODUCTION AND MACRONUTRIENTS IN LATOSOL SOIL

Liani

Sumarsono

et al. 2011

J. Indonesian Trop. Anim. Agric.

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ABSTRAKPenelitian dilakukan untuk mengetahui pengaruh aplikasi batuan fosfat pada produksi dan kandungan makronutrien alfalfa dibandingkan dengan pupuk fosfat kimia. Penelitian menggunakan rancangan acak lengkap yang berpola faktorial 3x3. Faktor pertama adalah sumber pupuk P yang berbeda: Guizhou Phosphate Rock (GPR), Jingxiang Phosphate Rock (JPR), dan Single Super Phosphate (SSP). Faktor kedua adalah dosis pupuk P: 75, 100, dan 125 mg P2O5/kg tanah. Perlakuan kontrol (tanpa penambahan pupuk P, CK) telah ditambahkan sebagai perbandingan dengan perlakuan. Hasil menunjukkan bahwa produksi alfalfa tertinggi dihasilkan dari penambahan JPR, dimana GPR dan SSP menghasilkan kandungan nutrien lebih tinggi pada alfalfa disbanding dengan JPR. Kesimpulan dari penelitian ini adalah aplikasi batuan fosfat memiliki efek yang sama pada pertumbuhan alfalfa dibandingkan dengan SSP pada kondisi perlakuan tersebut.Kata kunci: alfalfa, batuan fosfat, makronutrien, produksi ABSTRACTThe objective of this study was to evaluate the effectiveness of phosphate rocks (PRs) fertilizer compared to chemical P fertilizer for the best crop production and macronutrients of alfalfa. A completely randomized design under 3x3 factorial patterns was used in this research. The first factor was different sources of P fertilizer: Guizhou Phosphate Rock (GPR), Jingxiang Phosphate Rock (JPR), and Single Super Phosphate (SSP). The second factor was level of P fertilizer: 75, 100, and 125 mg P 2 O 5 /kg soil. A control treatment (without addition of P fertilizer, CK) was added as a comparison with the treatments. The results showed that JPR was the best for alfalfa production, whereas GPR and SSP were better for nutrient content in the alfalfa tissue than JPR. On the whole, phosphate rocks had similar effect on alfalfa growth compared to SSP at the experimental conditions.

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Combined Effects of Legumes with Rock Phosphorus on Rice in West Africa

Cited by 31 publications

References 29 publications

Nitrogen and carbon losses from dung storage in urban gardens of Niamey, Niger

Nitrogen and carbon losses from dung storage in urban gardens of Niamey, Niger

Réponses des variétés interspécifiques du riz de plateau aux applications de phosphate en zone de forêt au Nigeria

PHOSPHATE ROCK APPLICATION ON ALFALFA (Medicago sativa L.) PRODUCTION AND MACRONUTRIENTS IN LATOSOL SOIL

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