Nutritive Value and Silage Fermentation Characteristics of Forage Sorghum (<i>Sorghum bicolor</i> L.) Genotypes and Lablab (<i>Lablab purpureus</i> L.) Mixture
- 1 Agriculture Science Center Clovis, New Mexico State University, Las Cruces, NM, USA
- 2 Agriculture Science Center Clovis, New Mexico State University, Las Cruces, NM, USA
- 3 Agriculture Science Center Clovis, New Mexico State University, Las Cruces, NM, USA
- 4 Agriculture Science Center Clovis, New Mexico State University, Las Cruces, NM, USA
- 5 Agriculture Science Center Clovis, New Mexico State University, Las Cruces, NM, USA
Abstract
This study was conducted to assess the fermentation and nutritive value of sorghum silage mixed with lablab at different proportions. The treatments consisted of a combination of two sorghum genotypes viz . “Brown midrib” and “Brachytic dwarf” genotype of lablab and six population proportions viz. 150:0, 112.5:37.5, 75:75, 37.5:112.5, 0:150 and 150:150 × 10 3 plants · ha -1 sorghum genotypes and lablab, respectively totalling to 12 numbers. Sorghum genotypes and lablab were grown as monocrop and in intercropping systems in the same field. Forage sorghum was harvested at the late-dough stage and lablab at 20% bloom. They were cut and chopped together and ensiled. Lablab in the silage mixture was its actual contribution to the total forage mixture. For each mixture, a 1-L glass jar (mini-silo) was filled with 500 g of fresh material and replicated four times. Forage in mini silos was fermented for 60 days at room temperature (25°C). Pre and post-silage dry samples were analysed for nutritive value and ensiled samples were analysed for fermentation characteristics. There was no significant difference in nutritive value between sorghum genotypes. The greatest impact of mixing lablab with sorghum genotypes was on crude protein (CP) and acid detergent fiber (AD F), but not on neutral detergent fiber (NDF). Across treatments, CP, ADF pH, lactic, and acetic acid concentrations increased as the proportion of LB was in creased. The results indicated that lablab as an intercrop with sorghum for greater DM yield and forage and silage quality than respective monocrops.
- Dawo, M.I., Wilkinson, J.M., Sanders, F.E.T. and Pilbeam, D.J. (2007) The Yield and Quality of Fresh and Ensiled Plant Material from Intercropped Maize (Zea mays) and Beans (Phaseolus vulgaris). Journal of the Science of Food and Agriculture, 87, 1391-1399. https://doi.org/10.1002/jsfa.2879
- Angadi, S.V., Umesh, M.R., Begna, S. and Gowda, P. (2022) Light Interception, Agronomic Performance, and Nutritive Quality of Annual Forage Legumes as Affected by Shade. Field Crops Research, 275, Article ID: 108358. https://doi.org/10.1016/j.fcr.2021.108358
- Lauriault, L.M., Angadi, S.V., Marsalis, M.A. and Van Leeuwen, D.M. (2012) A Comparison of Pigeonpea and Cowpea Forage Yield and Nutritive Value in the Southern High Plains of the USA. Bulletin, 802, 1-8.
- Umesh, M.R., Angadi, S., Begna, S. and Gowda, P. (2022) Planting Density and Geometry Effect on Canopy Development, Forage Yield and Nutritive Value of Sorghum and Annual Legumes Intercropping. Sustainability, 14, Article No. 4517. https://doi.org/10.3390/su14084517
- Rao, S.C., Northup, B.K. and Mayeux, H.S. (2005) Candidate Cool-Season Legumes for Filling Forage Deficit Periods in the Southern Great Plains. Crop Science, 45, 2068-2074. https://doi.org/10.2135/cropsci2005.0019
- Rao, S.C., Coleman, S.W. and Mayeux, H.S. (2002) Forage Production and Nutritive Value of Selected Pigeonpea Ecotypes in the Southern Great Plains. Crop Science, 42, 1259-1263. https://doi.org/10.2135/cropsci2002.1259
- Contreras-Govea, F.E., Van Leeuwen, D.M., Angadi, S.V. and Marsalis, M.A. (2013) Enhances in Crude Protein and Effects on Fermentation Profile of Corn and Forage Sorghum Silage with Addition of Cowpea. Forage and Grazinglands, 11, 1-7. https://doi.org/10.1094/FG-2013-0622-01-RS
- Angadi, S.V., Umesh, M.R., Contreras-Govea, F.E., Annadurai, K., Begna, S.H., Marsalis, M.A., Cole, N., Gowda, P.H., Robert Hagevoort, G. and Lauriault, L.M. (2016) In Search of Annual Legumes to Improve Forage Sorghum Yield and Nutritive Value in the Southern High Plains. Crop, Forage & Turfgrass Management, 2, 1-5. https://doi.org/10.2134/cftm2015.0182
- Begna, S., Angadi, S., Mesbah, A. Umesh, M.R. and Stamm, M. (2021) Forage Yield and Quality of Winter Canola-Pea Mixed Cropping System. Sustainability, 13, Article No. 2122. https://doi.org/10.3390/su13042122
- Contreras-Govea, F.E., Marsalis, M., Angadi, S.V., Smith, G., Lauriault, L.M. and Van Leeuwen, D. (2011) Fermentability and Nutritive Value of Corn and Forage Sorghum Silage When in Mixture with Lablab Bean. Crop Science, 51, 1307-1313. https://doi.org/10.2135/cropsci2010.05.0282