• N.D. Jasuja

A multi-region study was directed to survey the nitrogen (N), phosphorous (P) and potassium (K) necessities of lowland rice (Oryza sativa L.) for a nearby assortment Digang developed in the northern Savannahs of Ghana and offer site explicit supplement suggestions. Ten on-ranch supplement oversight preliminaries including five paces of N, P and K blends were led during 2010 trimming season in Sudan and Guinea Savannah agro-biological zones. The medicines (kg/ha as N, P2O5 and K2O) involved 0-0-0 (control), 0-90-90 (zero N), 90-0-90 (zero P), 90-90-0 (zero K), 90-90-90 (NPK). Grain yields were expanded by applying manure N, P and K in adequate sums (90 N, 90 P2O5 and 90 K2O kg/ha) to conquer inadequacies and keep up soil richness. Nitrogen was a significant restricting supplement in the watered and downpour took care of swamps in the northern Savannahs of Ghana. The N-restricted yields differed somewhere in the range of 832 and 1875 kg/ha, proposing changeability of N providing limit of the exploratory plots. The effect of discarding N was distinctive among the regions with the inundated swamps biological systems in the Sudan Savannah that recorded the best return misfortune because of an exclusion and Guinea Savannah the least. More elevated level of compost N (118 kg/ha) was required in the watered swamp in the Sudan Savannah to accomplish most extreme yield contrasted with 52 with 79 kg N/ha in the downpour took care of swamps of Guinea Savannah. Potash composts have little impact on yield, particularly in flooded swamps in the Sudan Savannah. Grain yield decreases because of supplement inadequacies were more serious in the Upper West region (UWR) than in Upper East region (UER) and Northern region (NR). More elevated levels of N in watered lowland environments in the Sudan Savannah and higher P and K might be required in Upper West region in the Guinea Savannah than suggested for accomplishing more significant returns on a reasonable premise.

Rice, Guinea Savannah, Supplement Exclusion Preliminaries, Site Explicit Treatment, Yield Hole.

"Site-Explicit Supplement for Lowland Rice in the Northern Savannah Zones of Ghana", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 3, page no.669-675, March-2019, Available :http://www.jetir.org/papers/JETIREO06152.pdf

"Site-Explicit Supplement for Lowland Rice in the Northern Savannah Zones of Ghana", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 3, page no. pp669-675, March-2019, Available at : http://www.jetir.org/papers/JETIREO06152.pdf