Effect of water and nitrogen levels on yield attributes, water productivity and economics of cluster bean (Cyamopsis tetragonoloba) in hot arid region

Kumar Rakesh, Pareek N. K. Vijay Singh Rathore, Vinay Nangia, Narendra Dev Yadava, R. Yadav. (1/10/2020). Effect of water and nitrogen levels on yield attributes, water productivity and economics of cluster bean (Cyamopsis tetragonoloba) in hot arid region. Legume Research, 43 (5), pp. 702-705.

Abstract

A field experiment was conducted at research farm, Agricultural Research Sub-Station, Hanumangarh, Swami Keshwanand Rajasthan Agricultural University, Bikaner, Rajasthan during Kharif, 2016 to study the effect of water and nitrogen levels on yield attributes, water productivity and economics of cluster bean [Cyamopsis tetragonoloba (L.) Taub.].Cluster bean variety RGC-1055 with seed rate of 16 kg/ha was planted using 3 levels of irrigation (100, 200 and 300 mm) and 4 level of nitrogen (0, 20, 40 and 60 kg/ha) and analyzed in split plot design with three replication. Results showed that irrigation at 200 mm significantly increased number of pods/plant (44.7), number of seeds/pod (7.8), test weight (28.7g), net returns (Rs 31179/ha) and B:C ratio (2.1) over 100 mm irrigation level.However, water productivity (0.25 kg m-3) was highest at 100 mm irrigation level. Nitrogen level at 40 kg/ha significantly increased number of pods/plant (48.3), number of seeds/ pod (8.4), test weight (32.2 g), net returns (Rs.32273/ha), B:C ratio (2.12) and water productivity (0.27 kg m-3) over no application of N.