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American Journal of Plant Nutrition and Fertilization Technology
  Year: 2014 | Volume: 4 | Issue: 2 | Page No.: 41-56
DOI: 10.3923/ajpnft.2014.41.56
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Uptake and Agronomic Efficiencies of Nitrogen, Phosphorus and Potassium in Sesame (Sesamum indicum L.)

H.E. Shehu

Field experiments were conducted during the 2005 and 2006 rainy season at the Food and Agriculture Organisation/Tree Crop Programme (FAO/TCP) Teaching and Research farm of the Adamawa State University, Mubi to assess the uptake and agronomic efficiencies of N, P and K in sesame (Sesamum indicum L.) in Mubi, Northern Guinea savanna of Nigeria. The experiment consisted of 4 nitrogen rates (0, 37.5, 75 and 112.5 kg ha-1), 3 phosphorus rates (0, 22.5 and 45 kg ha-1) and 3 rates of potassium (0, 22.5 and 45 (kg ha-1), laid out in a Randomized Complete Block Design (RCBD) replicated three times. The results showed that seed yield (678.89 kg ha-1) and dry matter yield (2005 kg ha-1) were optimum at 75 kg N ha-1 fertilization. Dry matter yield (1913 kg ha-1) and seed yield (654 kg ha-1) were optimum at 45 kg P2O5 ha-1. Application of K did not significantly influence growth and yield components of sesame. All interactions were significant for seed yield and that of NxPxK (815 kg ha-1) was the highest. N uptake (27.45 kg ha-1) was highest at 45 kg P2O5 ha-1, P uptake (2.0 kg ha-1) at 75 kg N ha-1 and K uptake (28.70 kg ha-1) was at 112.5 kg ha-1. Interaction of NxP and NxK were significant for P and K uptake, respectively. The different grain yield responses were linked to their differences in N and P uptake and their utilization efficiencies. Application of N increased shoot N:P ratio while P and K decreased it. Agronomic efficiencies of N (2.26) and P (3.32) were highest at 75 kg N and 22.5 kg P2O5 ha-1, respectively. Apparent N recovery was 17.8% at 75 kg N ha-1 while that of P was 2% at 22.5 kg P2O5 ha-1. N and P utilization efficiencies were 14.33 and 168%, respectively making 75 kg N and 45 kg P2O5 ha-1 better choice at low K for nutritional balance.
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  •    Integration of Nitrogen and Biofertilizer on the Agronomic Efficiency and Quality of Shallot (Allium ascalonicum L.) Plant in the Rainy Season
  •    Response, Correlation of Growth Analysis and Shallot Yield under Different Nitrogen Fertilizer Dosage and Rhizobacteria Source
How to cite this article:

H.E. Shehu , 2014. Uptake and Agronomic Efficiencies of Nitrogen, Phosphorus and Potassium in Sesame (Sesamum indicum L.). American Journal of Plant Nutrition and Fertilization Technology, 4: 41-56.

DOI: 10.3923/ajpnft.2014.41.56






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