Home⇛Annals of Tropical Research⇛vol. 42 no. 2 (2020)

Application of Mitscherlich-Bray equation to formulate fertilizer recommendations for sweetpotato in Leyte, Philippines

Luz G. Asio | Nenita E. Tapay

 

Abstract:

Until now, no studies have been conducted in the Philippines on the use of the Mitscherlich-Bray equation to formulate NPK fertilizer recommendation for sweetpotato. This study used the Mitscherlich-Bray equation to formulate NPK requirements for sweetpotato. Independent experimental set-ups of N (7 application levels), P (6 levels), and K (9 levels) arranged in RCBD with three replications were simultaneously conducted. Theoretical maximum yield, NPK constants c and c, 1 NPK fertilizer recommendations for sweetpotato at different soil fertility levels, and optimum fertilizer rates were calculated. Fertilizer recommendations for a common range of soil test values were developed but needed further field verification trials. Theoretical maximum yields determined by the Mitscherlich-Bray equation were 19.05, 12.66, and 14.88t ha for NPK, respectively. The study showed that inherent -1 soil fertility is vital in the development of fertilizer recommendation for sweetpotato not only to increase root yield but likewise to increase overall productivity. It showed that 30, 50, and 60 percent of the maximum possible yield was attributed to the inherent soil N, P, and K, respectively. N, P O , and K O recommendations for 2 5 2 sweetpotato were computed based on a common range of soil test values ranging from 50 to 300, 5 to 40, and 200 to 700kg ha NPK, respectively.



References:

  1. Afzal S, Islam M & Obaid-Ur-Rehman. 2014. Application of Mitscherlich-Bray Equation for Fertilizer Use in Groundnut. Communication in Soil Science and Plant Analysis 45(12):1636-1645
  2. Asio VB, Jahn R, Perez FO, Navarrete IA & Abit SM Jr. 2009. A review of Soil Degradation in the Philippines. Annals of Tropical Research 31(2):69-94
  3. Balba MA and Bray RH. 1956. The application of the Mitscherlich Equation for the calculation of plant composition due to fertilizers increments. Soil Science Society of America Journal 20(4):515-518
  4. Cabanilla LS. 1996. Sweetpotato in the Philippines: Production, processing, and future prospects. International Potato Center, Lima, Peru
  5. de la Cruz NE, Aganon CP, Patricio MG, Romero ES, Lindain SA & Galindez JL. 2006. Production of organic fertilizer from solid waste and its utilization in intensive organic- based vegetable production and for sustaining soil health and productivity. Proceedings of the International Workshop on Sustained Management of the Soil-Rhizosphere System for Efficient Crop Production and Fertilizer Use, 16-20 October 2006, Land Development Department, Bangkok Thailand
  6. Dudal R and Roy RN. 1995. Integrated Plant Nutrition Systems. Report of expert consultation, 13-15 December 1993. FAO, Rome, Italy
  7. Fox RL. 1971. Growth Response Curves: The law of diminishing return. Illustrated Concepts in Tropical Agriculture. A series prepared by the Department of Agronomy and Soil Science, College of Tropical Agriculture, University of Hawaii. https://www.ctahr.hawaii.edu/oc/freepubs/pdf/IC-002.pdf Gisi U, Schenker R, Schulin R, Stadelman F & Stiker H. 1990. Bodenoekologie (Soil Ecology). Thieme Georg Verlag, Stuttgart
  8. Harmsen K. 2000. A modified Mitscherlich equation for rainfed crop production in semi- arid areas: 1. Theory. NJAS-Wageningen Journal of Life Sciences 48(3):237-250
  9. Justus Liebig Gesellschaft Zu Giessen. 1990. Symposium 150 Jahre Agrikulturchemie". Giessen, Germany
  10. Landon JR. 1991. Booker Tropical Soil Manual. A Handbook for Soil Survey and Agricultural Land Evaluation in the Tropics and sub Tropics. Longman. Scientific and Technical Publ, Harlon
  11. Lebot V. 2009. Tropical Root and Tuber Crops: Cassava, Sweet Potato, Yams and Aroids. Crop production science in horticulture (17), CAB books, CABI, Wallingford, UK. Springer
  12. Marschner H. 1995. Mineral Nutrition of Higher Plants (2nd edn). Academic Press, London: Limited
  13. Munson RD and Doll JP. 1959. The economics of fertilizer use in crop production.. Advances in Agronomy 11:133-167
  14. Nedunchezhiyan M and Ray RC. 2010. Sweet potato growth, development, production, and utilization: Overview. In Ray RC and Tomlins KI (eds) Sweet potato: Postharvest aspects in Food (pp1-26). Nova Science Publishers Inc., New York
  15. O'Sullivan JN, Asher CJ & Blamey FPC. 1997. Nutrient Disorders of Sweet Potato. Australian Center for International Agricultural Research (ACIAR). Canberra. ACT 2601, Australia. ACIAR Monograph No. 48
  16. Relente FC and Asio LG. 2020. Nitrogen application improved the growth and yield performance of sweetpotato (Ipomoea batatas L. Lam). Annals of Tropical Research 42(1):45-55
  17. Roa J, Kadohira M, Bergantin R, Bolatete DM Jr & Yamauchi A. 2008. Farmers decision- making strategies on selecting rootcrop varieties in the Visayas. Region, Philippines. Reseach bulletin of Obihiro University 29:1-12
  18. Sonar KR and Babhulkar VP. 2002. Application of Mitscherlich-Bray Equation for Fertilizer use in Wheat. Communications in Soil Science and Plant Analysis 33(15-18):3241-3249
  19. Sorensen RC. 1983. Teaching the characteristics of yield response with the Mitscherlich equation using computers. Journal of Agronomic Education 12(1):21-25
  20. Tisdale SL and Nelson WL. 1975. Soil Fertility and Fertilizers. McMillan, New York
  21. Vasquez EA, Schmidt D, Zebitz CP, Beifuss U, Klaiber I, Kroschel J & Patindol R. 2009. Sweetpotato weevil pheromones and their precursors: Dose-response and structure- activity relationship in Cylas formicarius Fabr., Cylas brunneus Olivier and Cylas puncticollis Boheman. Annals of Tropical Research 31(2):16-40

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