Vol. 7 (5) : September-October 2016 issue
Green Farming Vol. 7 (5) : 1196-1199 ; September-October, 2016
Influence of irrigation and nitrogen stress and method of application of nutrients on yield and WUE of yard longbean
R.S. ANJANA1*, K.R. SHEELA2 and V.A. CELINE3
Department of Agronomy, College of Agriculture, Vellayani - 680 656, Dist. Thiruvananthapuram (Kerala)
Designation : 1Res. Scholar *(ababu1491@gmail.com), 2,3Professor
Subject : Agronomy and Crop Production
Paper No. : P-4571
Total Pages : 4
Received : 15 December 2015
Revised accepted : 08 August 2016
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Citation :
R.S. ANJANA, K.R. SHEELA and V.A. CELINE. 2016. Influence of irrigation and nitrogen stress and method of application of nutrients on yield and WUE of yard longbean. Green Farming Vol. 7 (5) : 1196-1199 ; September-October, 2016
ABSTRACT
An investigation was carried out at the College of Agriculture, Vellayani, Kerala, to assess the impact of varying irrigation interval, nitrogen stress and method of application of nutrients (soil, soil + foliar) on the productivity and water use efficiency (WUE) of yard longbean. Daily irrigation was not found to be necessary for yard longbean and irrigation at wider intervals (up to three days) produced yields comparable to daily irrigation. Daily irrigation enhanced the leafiness. Nitrogen application can be reduced to 22.5 kg ha-1 from the recommended dose of 30 kg ha-1. Soil application of nutrients in four split doses (basal, 20, 30 and 40 DAS) registered significant yield improvement and WUE over soil + foliar application. Irrigation once in three days registered lowest water requirement (662 mm) and highest WUE (14.38 kg ha.mm-1). Application of 75 % RD N resulted in higher WUE.
Key words :
Irrigation intervals, Nitrogen stress, Nutrient application method, Water use efficiency, Yard longbean.
