Potential of interplanted soybean and grain sorghum as a forage for dairy cattle

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dc.contributor.author Shirley, John E.
dc.contributor.author Evans, J.
dc.date.accessioned 2012-10-04T19:30:50Z
dc.date.available 2012-10-04T19:30:50Z
dc.date.issued 2012-10-04
dc.identifier.uri http://hdl.handle.net/2097/14809
dc.description.abstract Interplanted soybean (l00 to 120 lbs/acre) and grain sorghum (15 to 20 lbs/acre) were harvested at 64,88,102, 123, and 130 days postplanting to determine the ratio and chemical composition of vegetative and seed parts for each plant at advancing stages of maturity. Initial vegetative dry matter yield was 6,300 lbs/acre and increased to 15,000 lbs/acre with 63% vegetative at 123 days postplanting. Vegetative portions (stems, leaves, stalks) of the soybean and grain sorghum plants constituted 100% of the dry matter at day 64, then decreased to 52% at day 130, whereas the contribution of the soy pod (plus bean) and milo head to total dry matter increased from 0% at day 64 to 13% and 35%, respectively, at day 130. Generally, TDN and crude protein decreased over time in the vegetative plant parts and increased in the seed parts, whereas neutral detergent fiber (NDF) increased in the vegetative plant parts and decreased in the seed parts. Chemical composition at day 123 for the vegetative parts was 56% estimated TDN, 46% ADF, and 9% crude protein. NDF was 74% for grain sorghum and 57% for soy, with the difference contributed by hemicellulose. For the grain parts, TDN was 75%; NDF was 40% for grain sorghum and 28% for soy with the difference contributed by hemicellulose; ADF was 18%; and protein was 9% for grain sorghum and 29% for soy. en_US
dc.publisher Kansas Agricultural Experiment Station en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 86-94-S en_US
dc.relation.isPartOf Report of progress (Kansas Agricultural Experiment Station); 484 en_US
dc.subject Dairy en_US
dc.subject Soybean en_US
dc.subject Grain sorghum en_US
dc.subject Forage en_US
dc.subject Protein en_US
dc.subject Total digestible nutrients (TDN) en_US
dc.title Potential of interplanted soybean and grain sorghum as a forage for dairy cattle en_US
dc.type Conference paper en_US
dc.date.published 1985 en_US
dc.citation.epage 15 en_US
dc.citation.spage 11 en_US
dc.description.conference Dairy Day, 1985, Kansas State University, Manhattan, KS, 1985


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