Physical Sciences and Mathematics Commons^™

Application Of Near Infrared Reflectance Spectroscopy (Nirs) To Forage Evaluation In Uruguay, D. Cozzolino, Y. Acosta, J. Garcia

IGC Proceedings (1997-2023)

Near infrared reflectance spectroscopy (NIRS) were used to assess the chemical composition of a wide range of forages. Nearly five hundred herbage samples covering a wide range of temperate pastures species and mixtures, previously analysed by conventional wet chemistry were scanned in reflectance with a NIRS 6500 (NIRSystems, Silver Spring, USA). The coefficients of determination in calibration (R² ) and the errors in cross validation (SECV) were 0.98 (5.8), 0.94 (22.2), 0.97 (5.6), 0.94 (6.9) and 0.89 (19.7) for crude protein, in vitro organic matter digestibility, dry matter, ash and acid detergent fiber, in g kg ^–1 on a …

An Economic Assessment Of Cattle Raising Enterprises In The Red Soils Region Of China, Neil D. Macleod, Shilin Wen

IGC Proceedings (1997-2023)

No abstract provided.

Social And Cultural Implications Of Scaling Out Livestock Production In The Lao Pdr, Joanne Millar

IGC Proceedings (1997-2023)

No abstract provided.

Studies On Optimum Dosage In Radiation Breeding For Five Forage Varieties Of Chamaecrista Spp., X. L. Zheng, G. Z. Xu, J. Zhan, Boqi Weng

IGC Proceedings (1997-2023)

No abstract provided.

Integration Of Small Holder Crop‐Forage‐Livestock Systems In South East Asia--An Eastern Indonesian Case Study, Neil D. Macleod, Shaun Lisson, Cam Mcdonald, Jeff P. Corfield, Rachmat Rahman, Ketut Puspadi

IGC Proceedings (1997-2023)

No abstract provided.

Evaluation Of Forages And Soils In Different Waterlogged Saline Grasslands In Western And Southern Coastal Region Of Sri Lanka, Sujatha Premaratne, G. G. C. Premalal

IGC Proceedings (1997-2023)

No abstract provided.

Forage‐Based Indicators Of Environmental Sustainability Of Dairy Farms In Eastern Canada, V. Bélanger, A. Vanasse, Gilles Bélanger, D. Angers, Guy Allard

IGC Proceedings (1997-2023)

No abstract provided.

Level Of Water Stress Substantially Affects Productivity And Water Use Efficiency Of 30 Forages Used By The Australia Dairy Industry, James Neal, William Fulkerson, Roy Lawrie

IGC Proceedings (1997-2023)

No abstract provided.

Effect Of Intercropping Forages On Root Growth Of Fruit Tree And Orchard Ecology, Yibin Huang, Weibin Pan, Zhaoyang Ying, En Chen, Boqi Weng

IGC Proceedings (1997-2023)

No abstract provided.

Using On-Farm Demonstrations To Evaluate Newly Developed Cool-Season Forages In The Southeastern Usa, Tim Wilson, Mark Warren, Ann R. Blount, Cheryl L. Mackowiak, Jose C. B. Dubeux, James Devalerio, Barton Wilder, Derek Barber, Sydney Hayter

IGC Proceedings (1997-2023)

Multiple demonstration sites throughout Florida were designed to evaluate and provide hands-on producer and county faculty access to newly developed cool-season winter forage crops that can be grown in the southeastern United States. Research funding for these projects was provided by the Dairy Research and Education Project, supported through the Georgia/Florida Dairy Industry check-off dollars. Early adopter producers interested in evaluating forages were identified for this cooperation. Long-term goals are to have the early adopter producer aid in the trialing and dissemination of information about improved varieties.

Cool-season forages for use on southeastern US livestock operations benefit the producer in …

Survey Of Pasture Species And Management, Manure Management, Milk Production And Reproduction On Pasture-Based Dairy Farms In Florida And Georgia, Usa, F. Du, K. D. Gay, M. E. Sowerby, Y. C. Newman, C. R. Staples, R. C. Lacy, A. De Vries

IGC Proceedings (1997-2023)

Traditionally, most dairy farms in the south-eastern United States confine cows to barns or on pasture lots year-round and feed stored forages and concentrated feeds (Fontaneli et al. 2005). Often, much of the feed is purchased, however, the cost of purchased feed and fuel has risen rapidly in the last 5 years (NASS 2009). In addition, a significant amount of capital is tied up in buildings, machinery and manure management systems on the farms. For these reasons, many dairy farmers have shown an interest in or started transitioning to pasture-based dairy systems (Ricks and Hardee 2012). The management practices …

Nitrogen Management Of Forages In Relation To Gaseous Emissions – New Approaches And Considerations, Shabtai Bittman, Derek Hunt

IGC Proceedings (1997-2023)

Forages have a high N demand, a long growing season, and an effective root system all contributing to effective nutrient capture. However forages are restrictive in methods available for mitigating gaseous losses both as NH₃ and as N₂O, due to both practical and cost considerations. Strategies are needed to address the challenges of both N efficiency and N losses. Agronomic techniques in long term experiments can enhance estimates of N loss pathways and N efficiency, and demonstrate the importance of integrated multinutrient approaches. The dual manure stream concept divides manure into a thin fraction suitable as an …

Potential Of Forages In Crop Diversification And Crop Rotation, Martin H. Entz, Joanne Thiessen Martens

IGC Proceedings (1997-2023)

Redesign of agricultural systems according to ecological principles has been proposed for the development of sustainable systems. We review a wide variety of ecologically-based crop production practices that focus on forage crops in farming systems and discuss their potential role in enhancing the profitability, environmental sustainability and resilience. Crop-livestock systems that most closely mimic natural systems through appropriate integration of diverse components appear to offer the greatest potential benefits. These systems are more energy efficient and combine high productivity with low ecological footprint. Greater understanding of ecological relationships within crop-livestock systems are required to purposefully and proactively redesign agricultural systems …

Grazing Management Options For Maintaining Optimum Pasture Composition And Utilization, Glen E. Aiken

IGC Proceedings (1997-2023)

Global demand for meat and dairy products will continue to increase over the 21st century, however, the global forage-based livestock industry will be challenged in meeting production goals with minimal impact of the environment. Sustainable production of grazing livestock will depend on the use of carefully planned grazing management strategies. Development of a grazing management plan involves making two decisions: determining the livestock density at which pastures are stocked and settling on the method used to graze the pastures. Stocking rate indirectly affects output per animal and per hectare through its direct effect on forage mass and pasture composition. A …

Will Liming Acid Soils Now Be Adequate For Spring Needs?, Kenneth L. Wells, J. L. Sims

Soil Science News and Views

Each spring many farmers are faced with seeding forages, corn, and soybeans, and transplanting tobacco into acid soils. The choices are either to go ahead with planting and do nothing, don't plant, or to try some liming practice and hope that it works. The results from planting without doing anything may be disastrous or result in limited crop performance. While not planting is a viable option for some producers, most cannot afford this choice. The question most often faced is, "Will liming now do any good for this year's crop?"