MAIZE EASED INTERCROPPING STUDIES WITH GRAIN LEGUMES IN VERLTSOLS
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Date
2005-06-30
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University of Agricultural Sciences GKVK, Bangalore
Abstract
ABSTRACT
Dr. B. M. CHITTAPUR
MAJOR ADVISOR
A field experiment was carried out at Main Agricultural Research
Station, University of Agricultural Sciences, Dharwad during kharif 2002
to study maize (cv. DMH-2) based intercropping system with grain
legumes viz., Frenchbean (cv. HPR-35), ricebean (cv. RBL-1) and soybean
(cv.JS-335) in 1:1 and 1:2 row proportions along with respective sole
crops using Randomized Complete Block Design with three replications.
Irrespective of row proportions, legumes did not influence performance of
maize significantly. Kernel yield of maize ranged from 4404 to 4556 kg
ha-k Among legumes, soybean (912 kg ha-^) and Frenchbean (863 kg ha-i)
recorded significantly higher seed yields than rice bean (710 kg ha-^) and
yields of these legumes under intercropping were lower than those of sole
crops. Further, seed yield of legumes in 1:2 row proportion was
significantly higher than the seed yield in 1:1 row proportion. Maize
intercropped with legumes in 1:2 row proportion was superior in utilizing
natural resources like light and soil moisture. Land equivalent ratio (1.84)
in maize + Frenchbean (1:2) and area time equivalent ratio (1.65) in maize
+ ricebean (1:2) were higher and comparable with other treatments
involving 1:2 row proportion and were significantly superior over 1:1 row
proportion and sole crops. Higher maize equivalent yield (8068 kg ha-i),
gross returns (Rs.40,519 ha-^), net returns (Rs. 29,054 ha-i) and B:C ratio
(2.53) were recorded in maize + Frenchbean (1:2) intercropping system.
Thus, maize + Frenchbean/Rajmash in 1:2 row proportion was found
promising intercropping system in the Northern Transitional Zone of
Karnataka.
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