INFLUENCE OF PLANT POPULATION AND WEED MANAGEMENT PRACTICES ON YIELD AND ECONOMICS OF RABI PIGEON PEA (CAJANUS CAJAN (L.) MILLSP)
Journal Title: International Journal of Agriculture Sciences - Year 2016, Vol 8, Issue 16
Abstract
A field experiment was conducted during the rabi seasons of 2012-13 and 2013-14 to study the bio-efficacy of various herbicides on weeds, yield and economics of pigeon pea. The predominant weed flora were Sorghum halepense, Echinochloa crus-galli and Cynodon dactylon L. among monocot; Cyperus rotundus L. among sedges; and Amaranthus viridis L., Digera arvensis and Portulaca oleracea, Physalis minima, Euphorbia hirta, Corchorus olitorus and Alternenthara sessili among dicot. Significantly the lowest weed population and dry weight of weeds were recorded with a plant population of 83,333 plants/ha. Significantly higher grain (1043 kg/ha) and stalk (2734 kg/ha) yields with net returns of 29,452 Rs/ha and benefit: cost ratio of 3.13 were recorded with a plant population of 41,666 plants/ha and remained at par with plant population of 55,555 plants/ha. The lowest dry weight of weeds (407.05 kg/ha) and weed control efficiency (79.64 %) at harvest were recorded in weed free check which produced, the highest yield of grain (1200 kg/ha) and stalk (3319 kg/ha). An application of pendimethalin @ 1 kg/ha + hand weeding at 40 days after sowing was remunerative in pigeon pea as it had given the higher net return (33211 Rs/ha) and benefit: cost ratio (3.03).
Authors and Affiliations
VAISHALI H. SURVE
Keywords
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