Response of groundnut arachis hypogaea to application of farmyard manure nitrogen and phosphorus on light sandy loam savanna soil of northern nigeria
International Journal of Tropical Agriculture 4(1): 46-54
Field experiments were conducted on light sandy loam savanna soil of northern Nigeria to study the effects of FYM, and N and P alone and in combination, on growth and yield components of groundnut. Application of FYM, and N and P together resulted in a significant increase in the height of plants. However, this effect was not consistent during the subsequent cropping season. The number of root nodules/plant significantly increased and decreased by the addition of FYM, and N and P, respectively. Application of FYM, and N and P significantly increased the dry weight of root, number of branches/plant and kernel weight. The shelling percentage significantly increased by the application of 15 to 20 t/ha of FYM alone. However, this effect was not pronounced during the first year of cropping. Application of FYM at the rate of 10 to 20 t, and N 20 and P 40 kg/ha significantly increased the yield of groundnut pods during the successive cropping seasons by about 29-42 per cent. Results indicate the beneficial effects of FYM, and N and P as inorganic fertilizers applied in combination.