MEENA, N*., SOMU, G., SHASHIKUMAR. C., SHEKAR. B. G . AND SHIVARAY NAVI
AICRP on Sorghum, Haradanahalli farm, Chamarajanagara, University of Agricultural Sciences, Bangalore
AICRP on Cotton, Haradanahalli farm, Chamarajanagara, University of Agricultural Sciences, Bangalore
Professor (Agronomy), AICRP on Forage crops, ZARS, V. C. Farm, Mandya,
University of Agricultural Sciences, Bangalore
*(e-mail : meena3n@gmail.com)
(Received : 2 June 2022; Accepted : 17 June 2022)
SUMMARY
A field experiment was conducted at the All India Co-ordinated Research Project on Sorghum, Haradanahalli Farm, Chamarajanagara during kharif season of 2021 to study the response of fodder sorghum variety CNFS-1 to different sowing intervals and varied levels of seed rate. The experiment was laid out in split plot design with three replications. The main plot consists of four different intervals of sowing and subplot with three levels of seed rate. The data revealed that, among the sowing intervals, sowing at first fortnight of May recorded significantly higher plant height ( 255.58cm), leaf : stem ratio (0.244), leaf area (6966.08cm2), stem diameter (8.83mm), green fodder yield
(62.32t/ha), dry fodder yield (16.19t/ha), gross returns (Rs. 1,24,636 /ha), net returns (Rs. 69,627/ha) and benefit: cost ratio (2.26) compare to other dates of sowing. While, the seed rate of 55kg/ha has recorded significantly higher growth and yield components with higher gross returns (Rs.1,02,970/ha) compared to other levels. However, maximum leaf : stem ratio (0.211), leaf area (6426.67 cm2), stem diameter (8.25mm), net returns (Rs.52,381/ha) and benefit cost ratio (2.04) was observed with a seed rate of 50 kg/ha.
Key words: Sowing, Seed rate, Green fodder, Dry fodder, Net returns, Benefit : cost ratio