Abstract
Up until now, potash fertilization has not been part of the recommended practices for groundnut production in Nigeria and only low levels of P are recommended in line with the level of agricultural technology available to the farmer. The change from the traditional non-intensive farming practice to continuous intensive cultivation coupled with the introduction of better yielding/more-nutrient demanding crop varieties have led to a deficiency of a number of nutrients.
Field experiments were carried out for 5 years (repeated on the same sites) at 8 locations in northern Nigeria to evaluate the effect of four levels of phosphorus (0, 8, 16 and 24 kg P ha−1) and three levels of potassium (0, 20, and 40 kg K ha−1) on yield and related parameters in groundnut. Soils at the various sites were essentially loamy sands with low levels of organic carbon and cation exchange capacity.
The yield levels in the Guinea savannah were generally higher than those in the Sudan savannah but the response pattern was the same. There was significant response to applied P up to 24 kg P ha−1. Potash applied at 20 kg K ha−1 produced significantly higher pod yields than the control plots, but higher rates of applied K did not result in any further significant yield increase, although there was a clear consistent trend towards higher yields as the K rates increased. Phosphate X potash interaction had no significant effect on yield.
Except for K, the uptake of all nutrients were significantly increased by P levels. However, only the K content of haulms and the N content of kernels were significantly increased by K application. On the average, about 58% of N, 68% of P, 19% of K, 5% of Ca and 22% of Mg were contained in the kernels while 27% of N, 23% of P, 64% of K, 83% of Ca and 69% of Mg were contained in the haulms. The implication of this is that the complete removal of groundnut residue will deplete the soil cation reverves rapidly unless these losses are compensated through fertilizer use.
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References
Balasubramanian V, Singh L and Nnadi LA (1980) Effect of long term fertilizer treatments on groundnut yield nodulation and nutrient uptake at Samaru, Nigeria. Plant and Soil 55:171–180
Balasubramanian V, Singh L and Nnadi LA (1981) Fertilization of crops in semiarid savanna soils of Nigeria: Groundnut response to straight and compound fertilizers under continuous cultivation. Samaru J Agric Res 1(2):119–128
Bertrand R, Nabos J and Vicaire R (1972) Nutrient removal by groundnut and millet. Effect on the determination of maintenance application of fertilizers in a tropical ferrugenous soil on aeolian material at Terna, Niger. Agron Trop 27: 1287–1303
Bremner JM (1960) Determination of nitrogen in soils by the Kjeldahl method. J Agric Sci Camb 55:11–23
Chapman HD and Pratt PF (1962) Methods of analysis of soils, plants and water. Univ Calif Div Agric Sci Riverside 368 p.
Goldsworthy PR and Heathcote RG (1963) Fertilizer trials with groundnut in northern Nigeria. Empire J Exp Agric 31:251–366
Harpstead MI (1974) The classification of some Nigeria Soils. Soil Sci 116:437–443
Heathcote RG (1973) Potassium fertilization in the savanna zone of Nigeria. Potash Review 16/57:1–7
Heathcote RG and Stockinger KR (1970) Soil fertility under continuous cultivation in northern Nigeria. I. Responses to fertilizer in the absence of manures. Exp Agric 6:345–350
Jones MJ and Wild A (1975) Soils of the West African Savanna. Commonwealth Bur Soils Tech Commun No 55, 256 p.
Lombin G and Mustafa S (1981) Potassium response of cotton on some Inceptisols and Oxisols of northern Nigeria. Agron J 73:724–729
Murphy J and Riley JP (1962) A modified single solution method for the determination of phosphorus in natural waters. Anal Chem Acta 27:31–36
Singh L and Balasubramanian V (1979) Effects of continuous fertilizer use on a ferruginous soil (Haplustalf) in Nigeria. Exp Agric 15:257–265
Wild A (1971) The potassium status of soils in the savannah zone of Nigeria. Exp Agric 7:257–270
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Lombin, G., Singh, L. Fertilizer responses of groundnuts (Arachis hypogae L.) under continuous intensive cultivation in the Nigerian savannah. Fertilizer Research 10, 43–58 (1986). https://doi.org/10.1007/BF01073904
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DOI: https://doi.org/10.1007/BF01073904