Influence of irrigation scheduling and sand application in enhancing rabi groundnut (Arachis hypogaea L.) productivity in UKP command area of Karnataka

Hosamani, M.H. and Janawade, A.D. (2007) Influence of irrigation scheduling and sand application in enhancing rabi groundnut (Arachis hypogaea L.) productivity in UKP command area of Karnataka. Karnataka Journal of Agricultural Sciences, 20 (3). pp. 457-461.

[img] PDF
Restricted to ICRISAT researchers only

Abstract

A field investigation conducted in vertisol over two years revealed that scheduling of irrigations at pre flowering, flowering, pegging, pod formation and pod filling stages along with sand mulching /incorporation has significantly influenced the productivity of groundnut. The groundnut pod yield was higher in I1S6 (2230 kg ha-1) and I1S3 (2140 kg ha-1) over no sand application I1S7 (1665 kg ha-1). The harvest index was also significantly higher in I1S6 (0.40) and I1S3 (0.42) over no sand application I1S7 (0.38). Highest consumptive use of water was recorded in I3 S7 (control) 522 mm and it was reduced to 494 mm in I3S6. The highest water use efficiency was observed in I2 S3 (5.35 kg ha-1 mm-1) while minimum 2.80 kg h-1 mm in I3 S1. The available nutrients in soil after harvest of groundnut was also higher in I1 S6, P (25) and K (690 kg ha-1) compared to no sand application P (16.5) and K (510 kg ha-1). The soil moisture extraction was higher from surface layer (0-15 cm) 37.53 in I1 to 42.23 per cent in I3 and it relatively decrease with depth (45-60 cm) 5.95 in I3 to 14.83 per cent in I2. Sand application marginally increased the soil moisture extraction from surface soil layer 0-15 cm, 38.27 per cent in S3 and 37.09 per cent in S6 compared to S7 ( no sand application) 36.40 per cent.

Item Type: Article
Author Affiliation: Department of Agronomy, University of Agricultural Sciences, Dharwad - 580 005, Karnataka, India
Subjects: Plant Production
Plant Production > Farming Systems
Divisions: Groundnut
Depositing User: David T
Date Deposited: 18 Jul 2011 09:26
Last Modified: 18 Jul 2011 09:26
URI: http://eprints.icrisat.ac.in/id/eprint/2310

Actions (login required)

View Item View Item
EPrints Logo
eprints is powered by EPrints 3 which is developed by the School of Electronics and Computer Science at the University of Southampton. More information and software credits.