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Published:
Mar 27, 2024DOI:
10.4314/br.v22i1.8Keywords:
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Main Article Content
Studies on the production of tigernut (Cyperus esculentus L.) in Southeastern Nigeria, I: Effect of seven complementary fertilizer treatments on growth and yield of tigernut in pot
Abstract
Tigernuts have so many food and medicinal potentials as it contains some amount of vitamins, minerals and phytochemicals. Despite the food and health benefits associated with this tuber, its production in southern Nigeria is at an abysmal level probably due to lack of knowledge for its production or utility. This experiment was conducted at the University of Nigeria Teaching and Research Farm to evaluate the effect of seven complementary fertilizer treatments on the growth and yield of tigernut. The experiment is an attempt to develop appropriate agronomic practice that will assure regular cultivation culture. The experimental design was a completely randomized design with seven fertilizer treatments and replicated 10 times. Treatments were NPK 15:15:15 (300 kg/ha), NPK 20:10:10 (300 kg/ha), poultry manure, PM, (5 t/ha), NPK 15:15:15 (150 kg/ha) + 3 t/ha PM, NPK 20:10:10 (150 kg/ha) + 3 t/ha PM, K-nitrate (100 kg/ha) + Ca-nitrate (100 kg/ha) + 2.5 t/ha PM and control (No fertilizer application). Fertilizer treatments significantly (p < 0.05) influenced growth and yield parameters except fresh weight of leaves, length of longest root and weight of seed planted. Significantly (p < 0.05) superior values of growth and yield parameters were obtained in plants grown with NPK 15:15:15 (300 kg/ha), followed closely by the application of NPK 20:10:10 at 150 kg/ha plus 3 t/ha PM. This study recommends application of NPK 15:15:15 (300 kg/ha) or the combined application of organic and inorganic fertilizer (NPK 20:10:10 at 150 kg/ha plus 3 t/ha PM) to boost the yield and growth of tigernut.
