STUDIES ON INTERCROPPING OF PIGEONPEA IN RAINFED COTTON
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Date
2001-08-02
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UNIVERSITY OF AGRICULTURAL SCIENCES GKVK BANGALORE
Abstract
A field experiment was conducted on medium deep black soil under
rainfed condition at the Agricultural Research Station, Dharwad Farm,
during the kharif season of 1998-99 to study the effect of row proportions
of cotton and pigeonpea (2:1, 3:1, 4:2 and 6:2) and pigeonpea population
(50 and 75 per cent of sole crop) on intercropping systems. Sole crops of
cotton and pigeonpea were also raised.
Sole crop of cotton and pigeonpea realised significantly higher 5deld
than intercropping system. The seed cotton 3deld produced under 6:2 row
proportion (1059 kg/ha) was significantly more than 2:1 (664 kg/ha), 3:1
(728 kg/ha) and 4:2 (823 kg/ha) row proportions. On the contrary, the
seed yield of pigeonpea under 2:1 (1464 kg/ha), 4:2 (1463 kg/ha) and 3:1
(1421 kg/ha) row proportions were significantly higher than 6:2 row
proportion (992 kg/ha). However, pigeonpea population levels and
interaction effects had no significant effect on the cotton and pigeonpea
ykld. Based on Area Time Equivalent (ATER) Ratio, cotton and pigeonpea
intercropping found to be 18 per cent more efficient in utilising land area
and time than of the sole crops.
Mean of intercropping systems, intercropping of cotton with
pigeonpea has recorded the lower net returns (Rs.l7,236/ha) and B:C ratio
(L04) as compared to sole cotton (Rs.20,380/ha and 1.40, respectively).
The net return and B:C ratio derived from 4:2 and 6:2 were higher over 2:1
and 3:1 row proportions. Among the cropping systems, highest gross and
net returns were obtained with intercropping of cotton and pigeonpea with
6:2 row proportions at 100:50 per cent plant population followed by
intercropping system with 4:2 row proportions at 100:75 per cent plant
population and sole cotton. These systems gave more gross, net returns
and B:C ratio than sole pigeonpea.
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From the results of this investigation it is concluded that sole cotton
as well as intercropping of cotton and pigeonpea with 6:2 proportions at
100:50 per cent plant population were better cropping systems than sole
pigeonpea under rainfed condition.
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