Effects of Human Urine and Ecosan Manure on Plant Growth and Soil Properties in Central Nepal

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  • K. C. Sharda
    Graduate School of Global Environmental Studies, Kyoto University
  • SHINJO Hitoshi
    Graduate School of Global Environmental Studies, Kyoto University

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Description

The effects of human urine and ecosan manure on crop productivity and soil chemical properties were studied using a randomized block experimental design in the households’ farm at three sites (Angare, Bhot Khoriya, and Deurali) of the Palung Village Development Committee, Nepal. Cauliflower was planted in 2017 and 2018 with five treatments: Control (C), Chemical fertilizer (CF), Urine (U), Ecosan manure + Urine (E+U), and Ecosan manure (E) during rainy season. The biomass of the plant after three weeks of transplant and after harvest was calculated to analyze the role of the treatments in cauliflower productivity. Chemical analysis was conducted to understand nutrient uptake and efficiency in the different treatments. It was observed that cauliflower yield was significantly higher in E+U and E treatments in Bhot Khoriya and Deurali and increased by 51% and 58% in Angare. Higher Potassium (K) uptake by plants from the E treatments was might be due to higher concentration of K in ecosan manure. Apparent recovery efficiency (ARE) of Nitrogen (N) increased from 9% to 115% due to the incorporation of urine and ecosan manure indicating that urine was a better source of N whereas human faeces were the better source of Phosphorus (P). Higher amount of urine applied might lead to overflow of urine contributing to volatilization and leaching. To minimize such effect, the application of a moderate amount of urine in combination with ecosan is recommended to have a significant effect on crop growth.

Journal

  • Sanitation Value Chain

    Sanitation Value Chain 4 (2), 19-37, 2020

    Sanitation Project, Research Institute for Humanity and Nature

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