Ak. Patra et al., Effect of sowing date, irrigation and spacing on nodulation, dry matter and yield of summer groundnut (Arachis hypogaea), I J AGRON, 44(4), 1999, pp. 800-804
An experiment was conducted during summer season of 1993 and 1994 to study
the effects of sowing date, irrigation and spacing on nodulation, dry-matte
r production and yield of summer groundnut (Arachis hypogaea L.), at Kalyan
i. Sowing on 15 February recorded significantly highest number of nodules/p
lant, dry weight of nodules and dry weight of pods/plant and pod yield than
that on 15 January. Irrigation had no significant effect on nodulation. Tw
o irrigations given at first phase of flowering and pod initiation recorded
higher shoot and pod dry weight/plant than 1 irrigation. Three irrigations
resulted in highest pod yield (2, 420 kg/ha) and moisture stress at pod-de
velopment stage and both at pod initiation and development stages reduced p
od yield by 13.4 and 44.2 % respectively. The crop sown at 25 cm x 12 cm sp
acing recorded the highest nodules/plant, shoot dry weight and pod yield.