Research Note: Effect of Integrated Application of Goat Manure and Urea on Soil Nutrient Content and Yield of Okra

Abstract

The work investigated effect of combined application of ground goat manure (GM) and Urea fertilizer (U) on soil nutrients, and yield of Okara (Abelmoschus esculentus Moench) at Akure in the rainforest zone of Nigeria. A control treatment, 160kg/ha U, 8t/haGM, 6t/ha GM + 40kg/ha U,/4t/hagra+kg/ha U,/ and 2t/ha GM+ 120kg/ha U were compared in two consecutive trials. Compared with control, other treatments increased number of Okra pods by 137,, 176,305,145 and 245% respectively. The increases in pod weight were 79,156, 243,147, and 204. The 8t/ha GM increased soil organic matter; N, pH and pod P compared with Urea, and gave higher pod count and weight. Pod yield parameters and soil N, P, K, Ca and Mg contents were increased by GM and Urea, Used sole or combined. Soil pH was also increased by GM. Combined application of suboptimal rates of GM and urea gave higher pod weight compared with Urea or GM alone. The highest pod count and weight were given by 6t/ha GM + 40 Kg/ ha U. Combined use of goat manure and Urea is recommended.

Nigerian Journal of Soil Science Vol. 17 2007: pp.126-129