STUDIES ON RELAY .AND SEQUENCE CROPPING IN RAINFED GROUNDNUT
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Date
1992
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ANDHRA PRADESH AGRICULTURAL UNIVERSITY RAJENDRANAGAR HYDERABAD
Abstract
A field experiment was conducted on Alfisols of
Tirupati canpus of Andhra PJ;adesh Agricultural university to study
the prospects of fingennillet and sunflower as relay and sequence
systans with groundnut as main crop under rainfed Calditions using
. .
split plot design, replicated thrice. The treatments consisted of
four dates of groundnut planting (June first fortnight, June secaid
fortnight, July first fortnight and July second fortnight) as
main-plot treabnents and four cropping systans ( relay and sequence
cro:i:;ping system., of f ingennillet and sunflower) as sub-plot
treatments.
F.ach delay in groundnut planting decreased the plant height
and LAI of groundnut at all the stages of crop grc:Mth. These grc:Mth
parameters contributed for higher dry matter production with the
earliest date of planting. Number of flowers ( 46. 8) , number of pegs
(20.8), total pods (10.9) and filled pods (7.8) per plant were high
due to June first fortnight planting. Hundred pod (67.1 g) and
hundred kernel weight (29.6 g) and shelling percentage (73. 7) were
also ยท higher with earliest date of planting. All these yield
attributes contributed significantly to higher pod (1487 kg ha-1 )
and haulm yield (2648 kg ha-1 ) and harvest index (36.3) of groundnut
due to June first fortnight planting.
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