Vol. 11 No. 1
Integrated effect of irrigation methods and nutrient management practices on yield and water use efficiency of papaya (Carica papaya L.)
Author(s): B. R. NAYAK, N. PANIGRAHY AND A. K. DASH
Abstract: An experiment was conducted at the Regional Research Technology and Transfer Station, Chiplima, Sambalpur during 2009, 2010 and 2011 to study the response of papaya to different irrigation methods and nutrient management practices. The experiment was comprised with three irrigation methods (I1 - Drip irrigation, I2 - Basin irrigation with straw mulch and I3 - Basin irrigation without straw mulch) in the main plots and three levels of nutrients management practices such as N1 - 100% inorganic source ( RDF-100:80:120g of N:P O :K O plant-1 year-1), N - 100% organic source (FYM 15.0 t ha-1 + vermicompost 5.0 t ha-1 + neemcake 0.5 t ha-1) and N - integrated nutrient management (75% inorganic source + 25% organic source) in the sub-plots with four replications in a split plot design. Pooled analysis of three years’data indicated that basin irrigation with straw mulch (I2) recorded highest fruit yield of 23.17 t ha 1 with water requirement of 205.43cm and water use efficiency of 112.78 kg ha-cm-1. Integrated nutrient management practice comprised of 75% inorganic source + 25% organic source (N3) recorded the highest fruit yield of 22.31t ha-1. The basin irrigation with straw mulch and exploitation of integrated nutrient tactics comprised of 75% inorganic+25% organic source produced maximum papaya fruit yield of 24.32 t ha-1 due to better soil health.
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