Recovery pattern of cyclone-affected coconut palms in littoral sandy soils of Orissa-Part II
The experiment to study the recovery pattern of cyclone affected palms cv. Sakhigopal Local was carried out in an ongoing fertilizer trial with three levels each of N (500, 1000 and 1500 g N/palm/ year), P (250, 500 and 750 g P2O5/palm/year) and K (750, 1250 and 1750 g of K2O/palm/year) at Coconut Research Station under Orissa University of Agriculture and Technology. The study indicated that the manuring practices comprising higher doses of N, P and K were most effective, nitrogen in particular in bringing out a gradual improvement in the reproductive characters of the coconut palms affected by the super cyclone, 1999. Enhanced nitrogen application (1000g/palm/year) induced production of more number of inflorescences, more of female flowers and increased yield per palm during initial years of damage irrespective of the degree of damage suffered by the adult palms in the littoral sandy soils of Orissa. The nut yield per palm per year exhibited significant increase at N levels of 500 to 1000 g per palm per year during 2001-02 to 2003-04 under damage category I. The importance of this level of nitrogen was marked during 2000-01 to 2002-03 in damage category II and during 2000-01 to 2001-02 in damage category III. The 1500 g nitrogen per palm per year did not show any significant change over 1000 g as regards to the nut yield per palm.
Dash, D.K., Ray, D.P. and Khan, H.H. (2002). Extent of damage to coconut palms caused by super cyclone in Orissa and pattern of their recovery. CORD (Coconut Research and Development), XVIII (1) : 29-40.
Gopi, C.S., Jose, A.I. and Koshy, E.P. (1982). Standardization of leaf position for foliar diagnosis of nitrogen in coconut. Proceedings of PLACROSYM V. (Bavappa, K.V.A., ed.), pp. 468-473.
Jackson, M.L. (1973). Soil Chemical Analysis. Prentice-Hall of India Pvt. Ltd., New Delhi.
Nair, M.A. and Sreedharan, C. (1982). Nutritional requirement of oil palm. Journal of Plantation Crops, 10 (1) : 45-52.
Nelliat, E.V. (1974). NPK nutrition of coconut palm- A review. Journal of Plantation crops, 1 (supplement) : 70-80.
Nelliat, E.V., Nair, R.V. and Thomas Varghese, P. (1978). Response of high yielding coconut genotypes to fertilizer levels under rainfed conditions. Proceedings of the first Annual Symposium on Plantation Crops (Nelliat, E.V., ed.), pp. 87-100.
Patel, J.S. (1938). The Coconut-A Monograph. Govt. Press, Madras
Piper, C.S. (1950). Soil and Plant Analysis. Hassel Press, Adelaide (Australia).
Prudente, R.L. and Mendoza, A.M.R. (1979). The effect of NPK fertilizers on coconut from transplanting to full bearing. Potash Review, 27: 88.
Rosenquist, A.E. (1962). Fertilizer experiments on oil palms in Malay, Part I-Yield data. J.W.Afr. Inst. Oil Palm Research, 3 : 921.
Salgado, M.L.M. (1946 a). New developments in coconut manuring. Coconut Research Scheme, Leaflet No. 8.
Salgado, M.L.M. (1946 b). Notes on manuring of coconut palms. Coconut Research Scheme, Leaflet No. 12.
Smith, R.W. (1969). Fertilizer responses by coconut in two contrasting Jamaican soils. Experimental Agriculture, 5 : 133-145.
Subbiah, B.V. and Asija, G.L. (1956). A rapid method for the estimation of available nitrogen in soils. Current Science, 25 : 259-260.
Thampan, P.K. (1982). Handbook on Coconut Palm. Oxford and IBH Publishing Co. Kolkatta, pp. 81-157.