Productivity and sustainability of soybean (Glycine max) based intercropping systems under rainfed situations of South-Eastern Rajasthan
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Authors
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J.P. Tetarwal
Agricultural Research Sub-Station (Maharana Pratap University of Agriculture & Technology, Udaipur), Aklera, Jhalawar- 326 033 (Rajasthan)
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Baldev Ram
Agricultural Research Sub-Station (Maharana Pratap University of Agriculture & Technology, Udaipur), Aklera, Jhalawar- 326 033 (Rajasthan)
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D.S. Meena
Agricultural Research Sub-Station (Maharana Pratap University of Agriculture & Technology, Udaipur), Aklera, Jhalawar- 326 033 (Rajasthan)
Keywords:
Intercropping, soybean, urdbean, maize, economics, competition functions, yield.Abstract
A field experiment was carried out at Agricultural Research Sub-Station, Aklera, Rajasthan during rainy (kharif) seasons of 2008 and 2009 to find out the best component crop with suitable row proportion for obtaining maximum productivity of soybean based intercropping system under rainfed situations of south-eastern Rajasthan. Both component crops (urdbean and maize) intercropped with soybean enhanced the soybean equivalent yield compared to sole soybean. Soybean intercropped with maize in 4:1 row ratio gave significantly higher soybean equivalent yield (1.93 t/ha), net return (Rs. 31,846/ha), B: C ratio (2.99), LER (1.20) and ATER (1.14) followed by soybean + maize (3:1 row ratio) over soybean + maize in 1:1 or 2:1 row ratio and soybean + urdbean (1:1, 2:1, 3:1, 4:1). Among the component crops, maximum yield loss in urdbean was recorded (57.5-79.3%) and minimum in maize (38.9-59.0%) over their sole crops.