Enhancement of the Productivity of Soybean in Malawi through Foliar Application of Nutrients

Main Article Content

Austin T. Phiri
Pacsu Simwaka
Daniel Kausiwa

Abstract

In Malawi, inoculating soybean with rhizobia, has been advocated for decades as a way of boosting productivity through enhancement of biological nitrogen fixation. The effectiveness of this strategy however, has been constrained by the low soil fertility status of soils in Malawi, necessitating the use of mineral fertilizer to supply nutrients to the soybean for increased productivity. Alternative strategies like foliar feeding of nutrients to improve grain yields are yet to be widely promoted due to lack of research evidence. Therefore experiments involving the soybean were conducted during the 2016/17 cropping season, laid in a randomized complete block design (RCBD) replicated four times, at Bvumbwe, Bembeke and Chitala  in Malawi to evaluate yields response to foliar feeding using a foliar fertilizer (Allwin-legumes). Agronomic data were analyzed in Genstat Discovery Edition 4 and were subjected to analysis of variance at 95% level of confidence. Means were separated using the least significant difference (LSD0.05). Generally, the result indicate that foliar feeding produced significantly higher (p<0.05) grain yields ranging from 33.7-364.7%, above the control across the different agro-ecological zones. The result underscores the importance of judicious and methodical application of nutrients to soybean under the changing climate and conditions of low soil fertility. In general, foliar feeding using Allwin fertilizer particularly when conducted twice can increase significantly soybean productivity in Malawi. The grain yields increase is attributable to the enhanced crop growth and development through foliar supply of nutrients.

Keywords:
Soybean, inoculation, foliar fertilizer, productivity, soil, climate

Article Details

How to Cite
Phiri, A. T., Simwaka, P., & Kausiwa, D. (2020). Enhancement of the Productivity of Soybean in Malawi through Foliar Application of Nutrients. Asian Soil Research Journal, 3(2), 18-34. https://doi.org/10.9734/asrj/2020/v3i230069
Section
Original Research Article

References

Gwazanga L. Malawi: Contract farming can boost legume production; 2015.
Available:http://allafrica.com/stories/201501301215.html

Opperman C, Varia N. Technical Report: Soybean Value Chain. USAID Contract No. 674-C-00-10-00075-00; 2011.

Goyder H, Mang’anya M. Legumes Platform Baseline Study. Research into Use Program – Malawi March; 2009.

Phiri AT, Njoloma JP, Kanyama-Phiri GY, Sieglinde S, Lowole MW. Maize yield response to the combined application of Tundulu rock phosphate and pigeon pea in Kasungu, Central Malawi. African Journal of Agricultural Research. 2010;5(11):1235-1242.

Chilimba ADC. Sulphur response studies. In soils commodity team annual report. Chitedze Research Station, Lilongwe; 1997.

Kachulu M. Climate change effects on crop productivity and welfare sensitivity analysis for small holder farmers in Malawi. African Journal of Agricultural and Resource Economics. 2018;13(1):58-77.

Peoples MB, Herridge DF, Ladha JK. Biological nitrogen fixation: An efficient source of nitrogen for sustainable agricultural production? Plant and Soil. 1995;174(1):3-28.

Miyamoto C, Ketterings Q, Cherney J, Kilcer T. Nitrogen fixation. Agronomy fact sheet series. Fact sheet 39. Nutrient Management Spear Program, Cornell University; 2008.
Available:http://nmsp.css.cornell.edu

Wickert S, Marcondes J, Lemos MV, Lemos EGM. Nitrogen assimilation in citrus based on CitEST data mining. Genetics and Molecular Biology. 2007;30: 810-818.9.

Harper JE. Soil and symbiotic nitrogen requirements for optimal soybean production, Crop Science. 1974:14:255-260.

Weisany W, Raei Y, Allahverdipoor HK. Role of some of mineral nutrients in biological nitrogen fixation. Bulletin of Environment, Pharmacology and Life Sciences. 2013;2(4):77-84.

Graham W, O’hara I, Nantakorn B, Michael J, Dilworth I. Mineral constraintsto nitrogen fixation. Plant and Soil. 1988; 108:93-110.

Brear EM, Day DA, Smith PMC. Iron: An essential micronutrient for the legume- rhizobium symbiosis. Frontiers in Plant Science. 2013;4:359.

Saka AR, Phiri IGM, Munthali MW, Makumba WIH. Process and adaptive research conducted on integrated soil fertility management in Malawi. Department of Agricultural Research Services, Ministry of Agriculture, Lilongwe, Malawi; 2004.

Okalebo JR, Gathua KW, Woomer PL. Laboratory methods of soil and plant analysis: A Working Manual. TSBF-KARI-UNESCO, Nairobi, Kenya. 2000;5- 20.

Mehlich, A. Mehlich 3 soil test extractant: A modification of Mehlich 2 extractant. Community of Soil Science and Plant Analysis. 1984;15(12):1409-1416.

Schumacher BA. Method for the determination of Total Organic Carbon (TOC) in soils and sediments. US Environmental Protection Agency. Environmental Sciences Division National Exposure Research Laboratory, Las. Vegas. 2002;3-23.

Amin M, Flowers TH. Evaluation of the Kjeldahl digestion method. Journal of Research (Science). 2004;5(2):59-179.

Baranowski R, Rybak A, Baranowska I. Speciation analysis of elements in soil samples by XRF. Polish Journal of Environmental Studies. 2002;11(5):473-482.

Phiri AT, Njoloma JP, Kanyama-Phiri GY, Sieglinde S, Lowole MW. Effects of intercropping systems and the application of Tundulu Rock phosphate on groundnut grain yield in Central Malawi. International Journal of Plant and Animal Sciences. 2013;(1):011-020.

Hussain T. Breeding potential for high temperature tolerance in corn (Zea mays L.). PhD thesis, University of Agriculture, Faisalabad, Pakistan. 2005;81.

Mrkovački N, Marinković J, Aćimović R. Effect of N fertilizer application on growth and yield of inoculated soybean. Not. Bot. Horti Agrobot. Cluj‐Napoca. 2008;36:48–51.
DOI:10.15835/nbha36190

Lin M, Gress hoff PM, Ferguson BJ. Systemic regulation of soybean nodulation by acidic growth conditions. Plant Physiology. 2012;160(4): 2028-2039.
DOI: 10.1104/pp.112.204149

Vargas AAT, Graham PH. Cultivar and pH effects on competition for nodule sites between isolates of Rhizobium in beans. Plant Soil. 1989;117:195–200.

Alva A, Asher C, Edwards D. Effect of solution pH, external calcium concentration and aluminum activity on nodulation and early growth of cowpea. Australian Journal Agricultural Research. 1990;41:359–365.

Evans J, Dear B, O’Connor G. Influence of an acid soil on the herbage yield and nodulation of five annual pasture legumes. Australian Journal of Experimental Agriculture. 1990;30:55–60.

Seneviratne G, Van Holm LHJ, Ekanayake GS. Agronomic benefits of Rhizobial inoculant use over nitrogen fertilizer application in tropical soybean. Field Crops research. 2000;68:199–203.

Wani SP, Rupela OP, Lee KK. Sustainable agriculture in the semi – arid tropics though biological nitrogen – fixation in grain legumes. Plant and Soil. 1995;174: 29–49.

Israel DW. Investigations of the role of phosphorus in symbiotic di-nitrogen fixation. Plant Physiology. 1987;84:835–840.