Critical Limit of Extractable Phosphorous in a Gleysol for Rice Production in the Senegal River Valley of West Africa

Bado, Boubié Vincent; Vries, Michiel E. de; Haefele, Stephan M.; Marco, Machado; Ndiaye, Mamadou

doi:10.1080/00103620701759178

Cited by 24 publications

(24 citation statements)

References 5 publications

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“…The LTFEs revealed that soil extractable P increased from 3.8 to 6.8 mg P kg -1 at Fanaye) and from 4.9 to 9.7 mg P ha -1 at Ndiaye with seasonal applications of the recommended dose of NPK fertilizer. Soil-P data from this research were on averagely very close to the critical limit (9 mg P kg -1 ) for rice production (Bado et al, 2007) and were similar to those obtained in the LTFE with the seasonal application of 26 kg P ha -1 after 18 years of cultivation.…”

Section: Agricultural Sciencesupporting

confidence: 57%

“…P becomes a limiting factor for increasing rice yield when the soil supplies less than 9 mg P kg -1 and P fertilizer should be applied under such conditions in order to increase rice yields. Above this value, responses to P fertilizer applications are not expected (Bado et al, 2007). Data of soil extractable P should be used to confirm the necessity to apply P fertilizers to overcome this limiting factor.…”

Section: Agricultural Sciencementioning

confidence: 99%

“…Investigating the importance of soil extractable P on rice yield, Bado et al (2007) determined a critical limit of 9 mg P kg -1 (Bray 1 P). P becomes a limiting factor for increasing rice yield when the soil supplies less than 9 mg P kg -1 and P fertilizer should be applied under such conditions in order to increase rice yields.…”

Section: Agricultural Sciencementioning

confidence: 99%

“…Using soil data from a long-term fertility experiment (LTFE), Bado, Aw and Ndiaye (2010) pointed out that although the original soil extractable P is very low in many cases, soil extractable P can significantly increase over time with continuous applications (two application per year) of the recommended dose of fertilizers. A critical level of 9 mg P kg -1 (Bray1 P) or 17 mg P kg-1 (Olsen P) was determined for rice production in the SRV (Bado et al, 2007) and P fertilizer applications are recommended when soil extractable P decreases below this critical level. Otherwise, P remained a limiting factor for increasing rice yield when the soil extractable decreases below this critical level.…”

Section: Introductionmentioning

confidence: 99%

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Improving Rice Productivity and Profitability with a Single Fertilizer-Management Option over Two Cropping Seasons in the Senegal River Valley

Bado¹,

Seck²,

Mel³

et al. 2015

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One of the main factors limiting the yield and productivity of irrigated rice in the Sahel of West Africa is the high cost of fertilizers and inefficient use of nutrients in the cropping systems. A two-year experiment was conducted over four consecutive seasons at Ndiaye (16°11'N, 16°15'W) and Fanaye (16°32'N, 15°11'W) along the Senegal River Valley to investigate alternative fertilizer management options in the double cropping system of rice. Eight fertilizer management options (FMO) were compared to the recommended seasonal application of NPK fertilizer based on yield data, the value-cost ratio (V/C) and the sustainabily of the recommendation. Rice yields increased from 2.5 t/ha without fertilizer application to 8 t/ha under the nine FMOs, which produced similar yields each season at both sites. The V/Cs of the recommended NPK fertilizer (applied each season) varied from 2.3 to 3.7. The V/Cs of FMO that supplied NPK during the hot dry season (HDS) and N during the wet season (WS), or conversely (NPK-N) varied from 3.2 to 5.7. The V/Cs of NPK-NP varied from 2.4 to 4.3. The V/Cs of NPK-NK varied from 2.4 to 4.4. The highest V/Cs ratios (5.2 to 6.3) were obtained by FMOs that supplied NP during the HDS and N during the WS, or conversely. It is concluded that when soil P-Bray1 is above 7 mg P ha -1 , FMOs that supply NPK fertilizer in one season and only N fertilizer in the following season could reduce the cost of fertilization by 26% and improve rice productivity for sustainable management of the double cropping system of rice in the Senegal River Valley.

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Section: Agricultural Sciencesupporting

confidence: 57%

Section: Agricultural Sciencementioning

confidence: 99%

Section: Agricultural Sciencementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Improving Rice Productivity and Profitability with a Single Fertilizer-Management Option over Two Cropping Seasons in the Senegal River Valley

Bado¹,

Seck²,

Mel³

et al. 2015

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“…The reliable nutrient status of farmers' fields' true will only be revealed through chemical soil testing during a particular growing season. The most widely used available soil P test is Bray II (Bray and Kurtz, 1945) on acidic soils (Bado et al, 2008). Instead of simple individual soil tests, soil calibrations of the relationship between soil test and yields of a specific plant are needed for fertilizer recommendation.…”

Section: Introductionmentioning

confidence: 99%

Response of phosphorous fertilizer and its recommendation for food barley (Hordium vulgare L.) production on Nitisols of central Ethiopian highlands

Admassu¹

2017

Afr. J. Agric. Res.

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) with three replications. Results revealed that yield and yield components of food barley were significantly affected by P fertilizer application. Phosphorous fertilizer application at different rates increased grain yield of food barley by 23 to 46% compared to the control. Available soil test P concentrations analyzed three weeks after planting were affected significantly by P fertilizer application rate. Relative yield and Bray-2 soil test phosphorous value correlation indicated that soil test phosphorous values greater than 13 mg kg -1 was found to be sufficient for food barley production. The average phosphorous requirement factor (P f ) calculated from soil test phosphorous values of all treatments for study area was 10.2. Most sites tested had Bray 2 P values <10 mg kg −1 . In the absence of a soil test, a recommendation of 40 kg P ha -1 , resulting in the best response overall, could be made for the first year of application. It was also recommend that to prevent a potential loss of barley yield, a maintenance application of at least 5 to 10 kg P ha −1 be applied every year, irrespective of the calculated recommended rate, in order to replace P exported from the field in the form of grain and straw yield. Further field trials are required to determine interactions between P response and the effects of climate, soil properties, and other management practices.

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Fertilization as the most critical factor affecting yield response and agronomic efficiency of phosphorus in Chinese rice production: evidence from multi‐location field trials

et al. 2023

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BACKGROUNDEfficient utilization of phosphorus (P) has been a major challenge for sustainable agriculture. However, the responses of fertilizer rate, region, soil properties, cropping systems and genotypes to P have not been investigated comprehensively and systematically.RESULTSA comprehensive analysis of 9863 fertilizer‐P experiments on rice cultivation in China showed that rice yield increased first and then fell down with the addition of P fertilizer, and the highest yield of 7963 kg ha−1 was observed under 100% P treatment. Under 100% P treatment, the yield response of applied P (YRP) and agronomic efficiency of applied P (AEP) were 12.8% and 30.1 kg ha−1, respectively. Lower soil pH (< 5.5) and organic matter (< 30.0 g kg−1) were associated with lower YRP and AEP. By contrast, soil available P < 25.0 mg kg−1 resulted in decreased YRP (15.3 to 11.4%) and AEP (32.3 kg kg−1 to 26.2 kg kg−1), whereas soil available P > 25.0 mg kg−1 maintained the relatively stable YRP and AEP. Also, the YRP and AEP were significantly higher for single‐cropping rice compared to other cropping systems. Moreover, the rice genotypes such as ‘Longdun’, ‘Kendao’ and ‘Jigeng’ had higher YRP and AEP than the average value. Overall, the fertilizer‐P rate was the primary factor affecting YRP and AEP, and the recommended P fertilizer rate can be reduced by 9–21 kg P ha−1 compared to existing expert recommendations.CONCLUSIONThe present study highlights the role of fertilizer‐P rate in maximizing the YRP and AEP, thereby providing a strong basis for future fertilizer management in rice cultivation systems. © 2023 Society of Chemical Industry.

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Critical Limit of Extractable Phosphorous in a Gleysol for Rice Production in the Senegal River Valley of West Africa

Cited by 24 publications

References 5 publications

Improving Rice Productivity and Profitability with a Single Fertilizer-Management Option over Two Cropping Seasons in the Senegal River Valley

Improving Rice Productivity and Profitability with a Single Fertilizer-Management Option over Two Cropping Seasons in the Senegal River Valley

Response of phosphorous fertilizer and its recommendation for food barley (Hordium vulgare L.) production on Nitisols of central Ethiopian highlands

Fertilization as the most critical factor affecting yield response and agronomic efficiency of phosphorus in Chinese rice production: evidence from multi‐location field trials

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