Legume Research

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Legume Research, volume 31 issue 1 (march 2008) : 40 - 43

EFFECT OF IRRIGATION AND NITROGEN ON YIELD, WATER AND NITROGEN USE EFFICIENCY IN RAJMASH (PHASEOLUS VULGARIS L.)

A.K. Behura1, P.K. Mahapatra2, D. Swain3
1Regional Research and Technology Transfer Station (OUAT) Keonjhar – 758 001 (Orissa), India

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Cite article:- Behura1 A.K., Mahapatra2 P.K., Swain3 D. (2024). EFFECT OF IRRIGATION AND NITROGEN ON YIELD, WATER AND NITROGEN USE EFFICIENCY IN RAJMASH (PHASEOLUS VULGARIS L.). Legume Research. 31(1): 40 - 43. doi: .

ABSTRACT

A field experiment was conducted during winter season of 1996-97 and 1997-98 to study the
effect of irrigation (IW/CPE ratio of 1.0, 1.2 and 1.4) and nitrogen (0, 40, 80 and 120 kg/ha) on yield,
water and nitrogen use efficiency in rajmash. Scheduling irrigation at IW/CPE of 1.4 had significant
effect on yield (1854 kg/ha). It responded to application of nitrogen @ 80 kg/ha (1912 kg/ha).
Rajmash extracted 35.3 cm of water having consumptive use (CU) of 40.5 cm and WUE of 45.8 kg/
ha-cm at IW/CPE ratio of 1.4. Application of nitrogen @ 80 kg/ha resulted in the extraction of 34.0
cm of water having CU 39.3 cm and WUE of 48.7 kg/ha-cm. Irrigation made at IW/CPE ratio of 1.4
had the highest apparent nitrogen recovery (44.92%) and agronomic nitrogen use efficiency (9.37
kg seed/kg N applied). The physiological efficiency (PE) ranged from 20.56 to 21.85 kg seed/kg N
uptake at varying irrigation levels. Nitrogen applied at 40 kg/ha had the highest ANR%, PE and
ANUE, which decreased progressively with successive increase in nitrogen levels

KEYWORDS

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