Application of Rice Husk Waste and Npk Fertilizer on a degraded Acid Sand in Anambra area, Southeastern Nigeria Effect on the Chemical and Nutritional Composition of Maize (Zea Mays) Grown on it Application of Rice Husk Waste and Npk Fertilizer on a degraded Acid Sand in Anambra area, Southeastern Nigeria Effect on the Chemical and Nutritional Composition of Maize (Zea Mays) Grown on it

Abstract

A field trial experiment in a completely randomized design was conducted on a sandy soil in Ukpor, Nnewi area of Anambra State, Southeast Agro-ecological zone of Nigeria to evaluate the impact of combination of Rice husk waste (RHW) and NPK fertilizer on food qualities of maize. The factors were; 10 tonsha-1 RHW + 300kgha-1 NPK, 5tonsha-1 NPK, Otonha-1 + 300kgha-1 NPK, 10 tonsha-1 + Okgha-1 NPK and the control in four replicates. The test crop was maize cultivar Oba super 2. The grains were harvested at 10 weeks after planting and the mineral Composition, Carbohydrate, Protein and Amino acids determined. Data obtained were analyzed using ANOVA and significant means subjected to fisher LSD at P = 0.05. The effects of the treatments were significant on the amino acid having a range of 1260 - 1693.5mg/l00g, while the Carbohydrate had a range of 72.17 - 75.12 percent but was not significantly different at < 0.05. Though there was improvement among the treatments. The minerals, K, P and K were also improved by the treatments.