Groundnut Response to Irrigation Frequency Under Different Tillage Systems

Abstract

Three irrigation frequencies and four tillage systems were
studied for two consecutive summer seasons (2002/03 and 2003/04) to
test their effect on growth and yield of groundnut (Arachis hypogaea L.).
The study was carried out in the Demonstration Farm of the Faculty of
Agriculture and Natural Resources, University of Kassala at New Halfa,
Sudan. The irrigation frequencies were 10, 15 and 20 days, and the tillage
systems used were discing, ridging, harrowing and no-tillage. There were
significant differences in the studied parameters due to irrigation
frequency. Except for days to 50% flowering and shelling percentage, the
10 days frequency recorded higher values than 15 and 20 days
frequencies. On the other hand, tillage system had significant effects on
all tested parameters except 100-seed weight and shelling percentage.
Disc ploughing gave higher values than the other tillage systems. The
interaction between irrigation frequencies and tillage systems had
significant effects on the studied parameters except days to 50%
flowering, seed weight and shelling percentage. Ten days irrigation
frequency with disc ploughing gave the highest yield and field water use
efficiency