Agronomic Performance of Sweet Potato (Ipomoea batatas (L.) Lam) Fertilized with Poultry Manure Enriched with Oil Palm Refuse Bunch Ash in a Low Fertile Soil
A field experiment was conducted to investigate the efficiency of poultry manure enriched with oil palm refuse bunch ash (OPRBA) on the growth and yield of sweet potato in a low fertile soil. The experiment was laid out in a randomized complete block design with three replications. The treatments involved five rates (0, 2, 4, 6 and 8 t ha-1) of oil palm refuse bunch ash (OPRBA) in the first year of the experiment. In the second year, the treatments were 0, 4, 6, 8 and 10 t ha-1 of OPRBA. All plots were treated with a basal application of 15 t ha-1 of poultry manure. Data were collected on vine length (cm), number of branches, number of nodes, number of leaves, leaf area index (LAI) and total dry weight (g m-2) at 8 weeks after planting. Data on yield components were collected on tuber length (cm), tuber girth (cm), number of tubers, tuber size (kg), tuber weight (kg) and tuber yield (t ha-1). The results showed that vine length, number of branches, number of nodes, number of leaves and leaf area index and total dry weight increased significantly (p < 0.05) while increasing the rate of OPRBA. The highest tuber yield (50.22 t ha-1) was recorded for plants treated with 6 t ha-1 of OPRBA in 2016. In 2017, plants treated with 6, 8 and 10 t ha-1 OPRBA had the highest tuber yield (29.10, 30.00 and 32.00 t ha-1, respectively). Tuber yield correlated significantly (p < 0.05) and positively with total dry weight (r = 0.748), LAI (r = 0.938), number of branches (r = 0.679), number of leaves (r = 0.879), number of nodes (r = 0.440), number of tubers (r = 0.561), tuber girth (r = 0.751), tuber length (r = 0.864), tuber size (r = 0.952) and vine length (r = 0.940). It is therefore suggested that poultry manure at the rate of 15 t ha-1 should be enriched with OPRBA at the rate of 6 t ha-1 for optimum production of sweet potato.
Amede T, German L, Rao C, Opondo C, Stroud A (2006). Integrated natural resource management in practice: enabling communities to improve mountain livelihoods and landscapes. In: Proceedings of the African Highland Initiative Conference, October, 2004, pp 1215.
Awodun MA, Ojeniyi SO, Adeboye A, Odedina SA (2012). Effect of oil palm bunch refuse ash on soil and plant nutrient composition on yield of maize. American-Eurasian Journal of Sustainable Agriculture 1(1):50-54.
Bationo A, Fairhurst T, Giller K, Kelly V, Lunduka R, Mando A, Shamie Z (2012). Handbook for integrated soil fertility management. Technical Centre for Agricultural and Rural Cooperation.
Ezekiel PO, Ojeniyi SO, Asawalaam DO, Awo AO (2003). Root growth, dry root yield and N, P, K content of cassava as influenced by oil palm bunch ash on ultisols of southeast Nigeria. Nigerian Journal of Soil Science 19(1):6-10.
Fageria NK, Baligar VC, Jones CA (2011). Growth and mineral nutrition of field crops. 2nd edition. Marcel Dekker Inc. New York.
FAO (2008). Corporate Document Repository. The impact of HIV/AIDS on the agricultural sector. Retrieved 2015 February 28 from http://www.fao.org/docrep/005/Y4636E/y4636e05.htm
Isherwood KF (2008). Fertilizer use and the environment. Revised Edition. International Fertilizer Inductry Association, Paris, France.
Jonna W (2006). Effects of wood ash on soil fertility and plant performance in southwestern Kenya. Master’s Thesis in Soil Science. Faculty of Natural Resources and Agricultural Sciences, Swedish University of Agricultural Sciences, pp 54.
Karam F, Rouphacl Y, Lahoud R, Breidi J, Coll G (2009). Influence of genotypes and potassium application rates on yield and potassium use efficiency of potato. Journal of Agronomy 8(1):27-32.
Law-Ogbomo KE, Remison SU (2007). The response of Dioscorea rotundata to NPK fertilizer application in Edo State, Nigeria. Research Journal of Agriculture and Biological Science 3(6):917-923.
Mylavarapu RS, Kennelley DE (2002). UF/IFAS extension soil testing laboratory (ESTL): Analytical procedures and training manual. Institute of Food and Agricultural Sciences, University of Florida, Gainesville, USA pp 28.
Nyakafewa EZ, Reddy KC, Sistani KR (2001). Tillage, cover cropping and poultry litter effects on soil chemical properties. Soil Tillage Resources 58(1-2):69-79.
Ogoke IJ, Egesi CN, Obiefuna JC (2003). A review of some non-destructive linear measurement procedures for leaf area determination in crops. International Journal of Agriculture and Rural Development 4(1):74-80.
Ojeniyi SO, Ezekiel PO, Asawalam DO, Awo AO, Odedina SA, Odedina JN (2009). Root growth and NPK status of cassava as influenced by oil palm bunch ash. African Journal of Biotechnology 8(18):4407-4412.
Remison SU (1997). Basic principles of crop physiology. Sadoh Press, Benin City, Nigeria.
Copyright (c) 2019 Notulae Scientia Biologicae
This work is licensed under a Creative Commons Attribution 4.0 International License.
Distribution - Permissions - Copyright
Papers published in Notulae Scientia Biologicae are Open-Access, distributed under the terms and conditions of the Creative Commons Attribution License.
© Articles by the authors; licensee SHST, Cluj-Napoca, Romania. The journal allows the author(s) to hold the copyright/to retain publishing rights without restriction.
Open Access Journal - the journal offers free, immediate, and unrestricted access to peer-reviewed research and scholarly work, due SHST supports to increase the visibility, accessibility and reputation of the researchers, regardless of geography and their budgets. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author.