Forage Production and Nutrient Composition of Different Sorghum Varieties Cultivated with Indigofera in Intercropping System

  • M. Telleng Sam Ratulangi University
  • K. G. Wiryawan Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University
  • P. D. M. H. Karti Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University
  • I. G. Permana Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University
  • L. Abdullah Department of Nutrition and Feed Technology, Faculty of Animal Science, Bogor Agricultural University
Keywords: forage, indigofera, intercropping, nutrient production, sorghum


The experiment  aimed to evaluate the production of nutrients  by different varieties of sorghum grown with high valuable indigofera legume  in intercropping system and to determine the suitable variety of sorghum that produced the highest nutrient in the system. The experiment was done at Jonggol Animal Science Teaching and Research Unit (UP3J) Jonggol, from November 2014 to March 2015. This experiment was conducted using completely randomized design with 2 factors (3 x 4) and 4 replications. The first factor was sorghum varieties (PATIR 3.2 (S1), PATIR 3.7 (S2), and CTY-33 (S3)). The second factor was indigofera composition (0% indigofera (I0), 30% indigofera (I1), 40% indigofera (I2), and 50% indigofera (I3)). Data were analyzed using analysis of variance and HSD test. There was no interaction among varieties of sorghum and indigofera composition. Indigofera population of up to 50%  in multiple cropping system had the highest (P<0.01) dry matter content, crude protein content, ash content, total fresh weight production, total dry weight production, total crude protein production, total ash production, and carrying capacity. Sorghum variety CTY-33 planted in multiple cropping system had  the highest (P<0.01) dry matter content, total dry weight production, and (P<0.05) total crude protein production. PATIR 37 sorghum variety planted in multiple cropping system had  the highest (P<0.05) ash content and (P<0.01) total ash production.  It is concluded that Indigofera population of up to 50% planted with different varieties of sorghum in multiple cropping system had  the highest nutrient production.


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