Author(s):

Jitendra Singh, Supriya, Shakuli Saxena, P Mishra and RB Singh

Abstract: Field experiments were carried out during kharif seasons (July-November) of 2015 at PFDC, Water Technology Centre to study the effect of fertigation doses and amount of water applied on the growth and yield of pigeonpea (<em>Cajanus Cajan</em>) cv. PUSA 992. The treatments consists of three main plots (100% RDF, 80% RDF, 60 % RDF) with water soluble fertilizer (WSF) through drip and three sub-plots (100 %, 80 %, 60 % computed water requirement of crop) and control (flood irrigation). The treatments were laid out in Split plot Design with three replications. The results revealed that drip irrigation at 100 % WRc with fertigation at 100 % RDF through WSF registered significantly highest grain yield. Surface irrigation with conventional method of fertilizer application recorded lower water use efficiency and lower yield. The increase in grain yield with drip irrigation at 100 % WRc + fertigation with 100 % RDF through WSF was mainly attributed by greater and consistent availability of soil moisture and nutrients which resulted in better crop growth, yield components and ultimately reflected on water use efficiency and yield of pigeonpea Cajanus cajan.

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