Influence of Different Nitrogen Sources on the Growth and Yield of Three Varieties of Okra (Abelmoschus esculentus) in Kabba, Kogi State, Nigeria

Sinmidele K. Ogundare^1*, Frank D. Owa², Omolola O. Etukudo¹, Naomi K. Ibitoye-Ayeni¹

¹College of Agriculture, Division of Agricultural Colleges, Ahmadu Bello University, Zaria, Nigeria.
²Department of Integrated Science, Federal College of Education, Okene, Nigeria.

DOI: 10.4236/as.2015.610109                

Abstract

Experiments were carried out at the Research Site of Horticultural Section, Kabba College of Agriculture to investigate the influence of different nitrogen sources on the growth and yield of three varieties of okra. The experiment was laid out in split block design with varieties as main plots (Lady Finger “LF”, LD88 and Okele (local cultivar)) and different nitrogen sources as sub plots (Urea (108.7 kgN/ha), poultry manure (PM) (3.01 t/ha = 108.7 kgN/ha) and cow dung (CWD) (3.83 t/ha = 108.7 kgN/ha). The treatment combinations were as follows LD88 + Urea, LD88 + PM, LD88 + CWD, LF + Urea, LF + PM and LF + CWD, Okele + Urea (108.7 kg/ha), Okele + PM and Okele + CWD. Growth parameters determined were plant height (cm), leafarea (cm2), number of leaves produced, stem girth (cm), internode length (cm) and days to 50% flowering and podding. Flower characters taken were number of flowers produced per plant, number of flowers aborted per plant, and number of pods produced per plant. Yield characters determined were individual pod weight (g), pod length (cm), pod diameter (cm) and pod yield (t/ha). The data collected were subjected to analysis of variance (ANOVA) and means compared using the least significant difference (LSD) at a probability level of 5%. Urea application and poultry manure had significantly different effects compared with cow dung treated plots for the parameters of growth and yield. Highest mean value was observed with urea application. This was followed by poultry manure application. The cultivar Lady’s finger performed better according to the data for number of pods and fresh pod weight. This was followed by the LD88 cultivars. Okra grew taller and had bigger stem girth, greater number of leaves, larger leaf area and higher number of pods and fresh pod weight with urea application. Cultivar Lady’s finger performed better than the other cultivars in most measured parameters. It is therefore recommended that lady finger should be grown by farmers in the study area with their soil amended with urea fertilizer in the study area.

Keywords

Cultivar, Nitrogen, Poultry Manure, Cow Dung, Pod, Growth, Yield

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Emuh, I.F.N., Ofuoku, A.E. and Oyefia, E. (2006) Effect of Intercropping Okra (Hibiscus esclentus) with Pumpkin (Curcubita maxima Dutch ex Lam) on Some Growth Parameters and Economic Yield of Maize (Zea mays) and Maximization of Land Use in a Fadama Soil Research. Journal of Biological Sciences, 1, 50-54.
[2]	Siemonsma, J.S. and Hamon, C.S. (2002) Abelmoschus caillei (A. Chev.) Stevels Record from Protabase. In: Oyen, L.P.A. and Lemmens, R.H.M.J, Eds., PROTA (Plant Resources of Tropical Africa/Resources Vegetables de l’Afrique tropicale), Wageningen,
[3]	Farinde, A.O. and Owalarefe, L.B. (2007) Nigeria Fertilizer Sector, Present Situation and Future Prospects IFDC. Technical Bulletin, 12, 18.
[4]	Farinde, G.C. (2007) Dry Season Vegetable Gardening. Agric Extention News Letter Information Kano, 17, 7.
[5]	Schippers, R.R. (2000) African Indigenous Vegetable: An Overview of the Cultivated Species. Chaltham, UK. National Resource Institute A.C.D.E.U. Technical Centre for Agricultural and Rural Cooperation, 105-117.
[6]	Denton, L. and Swarup, V. (1990) Tomato Cultivation and Its Potential in Nigeria. African Symposium on Horticultural Crops, Ibadan, 257.
[7]	Sikander, A., Dawar, S., Tariq, M. and Zaki, M.J. (2009) Management of Root Diseases by Combination of Different Soils with Fertilizers. Pakistan Journal of Botany, 41, 3219-3225.
[8]	Adepetu, J.A. (1986) Soil Fertility and Fertilizer Requirements in Oyo, Ogun and Ondo States of Nigeria. Produced by Federal Development of Agricultural Land Resources, 48.
[9]	Akhtar, M.E., Khan, M.Z., Rashid, M.T., Ahsan, Z. and Ahmad, S. (2010) Effect of Potash Application on Yield and Quality of Tomato. Pakistan Journal of Botany, 42, 1695-1702.
[10]	Khan, M.A., Sajid, M., Hussain, Z., Rab, A., Marwat, K.B., Fazal-i-Wahid and Bib, S. (2013) How nitrogen and phosphorus influence the phenology of okra. Pakistan Journal of Botany, 45, 479-482.
[11]	Mubashir, M., Malik, S.A., Khan, A.A., Ansari, T.M., Wright, S., Brown, M.V. and Islam, K.R. (2010) Growth, Yield and Nitrate Accumulation of Irrigated Carrot and Okra in Response to Nitrogen Fertilization. Pakistan Journal of Botany, 42, 2513-2521.
[12]	Ewulo, B.S., Ojeniyi, S.O. and Akanni, D.A. (2008) Effect of Poultry Manure on Selected Soil Physical and Chemical Properties, Growth, Yield and Nutrient Status of Tomato. African Journal of Agricultural Research, 3, 612-616.
[13]	Sharma, A.R. and Mittra, B.N. (1991) Effect of Different Rates of Application of Organic and Nitrogen Fertilizers in a Rice-Based Cropping System. Journal of Agricultural Science, 117, 313-318. http://dx.doi.org/10.1017/S0021859600067046
[14]	Abou El-Magd, M.M., Hoda, M.A. and Fawzy, Z.F. (2005) Relationships, Growth, Yield of Broccoli with Increasing N, P or K Ratio in a Mixture of NPK Fertilizers. Annals of Agricultural Science, 43, 791-805.
[15]	Higgins, G.M. (1957) Preliminary Report on the Detailed Land, Soil and Contours Survey of River Rine Area of School of Agriculture, Kabba. Soil Survey Bulletin No. 31, 28 p.
[16]	Babalola, T.S. (2010) Land Evaluation Studies of Two Wetland Soil in Nigeria. An MSc Thesis Submitted to the Department of Crop, Soil and Environmental Sciences, Ekiti State University, Ado Ekiti, 141.
[17]	Bremner, J.M. (1982) Total Nitrogen. In: Page, A.L., Miller, R.H. and Keeny, D.R., Eds., Methods of Soil Analysis, Part 2, 2nd Edition, Agronomy Monograph No. 9, ASA and SSSA, Madison, 915-928.
[18]	Nelson, D.W. and Sommers, L.E. (1982) Total Carbon, Organic Carbon and Organic Matter. In: Page, A.L., Miller, R.H. and Keenay, D.R., Eds., Methods of Soil Analysis, Part 2, ASA, Madison, 539-580.
[19]	Gudugi, I.A.S. (2013) Effect of Cow Dung and Variety on the Growth and Yield of Okra (Abelmoschus esculentus (L.). European Journal of Experimental Biology, 3, 495-498.
[20]	Gomez, A.K. and Gomez, A.A. (1984) Statistical Procedures for Agricultural Research. 2nd Edition, John Wiley and Sons, Inc., New York, 96-107, 199-205.
[21]	Iyagba, A.G., Onuegbu, B.A. and IBE, A.E. (2012) Growth and Yield Response of Okra (Abelmoschus esculentus (L.) Moench) Varieties to Weed Interference in South-Eastern Nigeria. Global Journal of Science Frontier Research Agriculture and Veterinary Sciences, 12, 23-31.
[22]	Sharma, D.H. (2004) Fundamentals of Soil Science. 7th Edition, Longman, Harlow.
[23]	Grey, C. and William, V. (2006) The Right Away to Grow Fresh Vegetable All Year Round. Macmillan Publishers, London.
[24]	Ahmad, F., Ishtiaq, M. and Muhammad, S. (1999) Effect of Different Levels of Nitrogen Alone and in Combination with Constant Doses of Phosphorus and Potassium on Growth and Yield of Okra cv. T-13. Sarhad Journal of Agriculture, 15, 405-407.
[25]	Wevil, V.C. (2002) Quality of Horticultural Products. Butterworth and Co. (Publishers) Ltd., London.