Rb. Tiwari et al., GROWTH AND WATER-USE BY SUMMER GROUNDNUT (ARACHIS-HYPOGAEA) AS AFFECTED BY IRRIGATION SCHEDULE, FERTILIZER AND WEED-CONTROL METHOD, Indian Journal of Agronomy, 42(2), 1997, pp. 338-341
A field study was made during summer season of 1993 and 1994 to assess
the effect irrigation schedules, fertilizers and weed-control methods
on growth of and water use by summer groundnut (Arachis hypogaea L.)
Increased irrigation frequency through irrigation scheduling from 0.40
to 1.0 irrigation water : cumulative pan evaporation (IW : CEP), appl
ication of 40 and 80 kg N and P2O5 ha and pendimethalin + earthing up
significantly improved growth, nodules plant, chlorophyll content, lea
f-area index and plant dry matter at 60 days, and crop-growth rate. Th
e water - use efficiency (WUE) was maximum at 0.70 IW : CPE. The crop
under weedy check consumed maximum amount of water, while the highest
WUE was recorded with pendimethalin + earthing up.