A5071526992- Soil and Water Nutrient Dynamics
- Soil Carbon and Nitrogen Dynamics
- Agriculture Sustainability and Environmental Impact
- Ruminant Nutrition and Digestive Physiology
- Environmental Impact and Sustainability
- Agronomic Practices and Intercropping Systems
- Phosphorus and nutrient management
- Plant nutrient uptake and metabolism
- Peatlands and Wetlands Ecology
- Economic and Environmental Valuation
- Agriculture and Rural Development Research
- Legume Nitrogen Fixing Symbiosis
- Food Waste Reduction and Sustainability
- Odor and Emission Control Technologies
- Groundwater and Isotope Geochemistry
- Pasture and Agricultural Systems
- Crop Yield and Soil Fertility
- Sustainable Agricultural Systems Analysis
- Climate Change Policy and Economics
- Potato Plant Research
- Wastewater Treatment and Reuse
- Wastewater Treatment and Nitrogen Removal
- Bioenergy crop production and management
- Agricultural Economics and Policy
- Agricultural Systems and Practices
AgResearch
2016-2025
Massey University
2016
Universidad Nacional Agraria La Molina
2008
Columbia University
2008
Fauji Fertilizer (Pakistan)
1991
Australian National University
1985
Ministry for Primary Industries
1982-1983
Lincoln University
1981
Nitrogen (N) inputs and outputs were measured over 3 years in a trial with four farmlets (each 16 randomly-allocated 0·4 ha paddocks) on permanent white clover/ryegrass pastures which grazed throughout the year by dairy cows near Hamilton, New Zealand. Three stocked at 3·3 cows/ha received nominal rates of N fertilizer (urea 8–10 split applications) 0, 200 or 400 kg N/ha per year. A fourth farmlet 4·4 was supplemented maize grain during first two years. balances calculated, [sum ]N...
Abstract In this publication we review recent research and understandings of nutrient flows losses, management practices on grazed pastoral farms in New Zealand. Developments principles years have seen a much greater focus technologies that minimise the leakage nutrients, especially nitrogen (N) phosphorus (P), from to wider environment. This has farm planning shift relatively small set procedures designed optimise fertiliser application rates for pasture animal production comprehensive...
Methodology of co-product handling is a critical determinant calculated resource use and environmental emissions per kilogram (kg) product but has not been examined in detail for different sheep production systems. This paper investigates alternative approaches co-production wool live weight (LW, meat) from dual purpose systems to the farm-gate. Seven methods were applied; three biophysical allocation (BA) based on protein requirements partitioning digested protein, mass (PMA), economic (EA)...
Australia is one of the two largest exporting nations for beef and lamb in world USA a major export market both products. To inform Australian red meat industry regarding environmental performance exported food products, this study conducted first multi-impact analysis supply chains including all stages through to warehousing USA. A large, integrated dataset based on case farms regional survey was used model from representative production regions eastern Australia. Per kilogram retail-ready...
Abstract China has an ever‐increasing thirst for milk, with a predicted 3.2‐fold increase in demand by 2050 compared to the production level 2010. What are environmental implications of meeting this demand, and what is preferred pathway? We addressed these questions using nexus approach, examine interdependencies increasing milk consumption its global impacts, under different scenarios domestic importation. Meeting China's business as usual scenario will dairy‐related (China leading...
ADVERTISEMENT RETURN TO ISSUEPREVViewpointNEXTLivestock Housing and Manure Storage Need to Be Improved in ChinaZhaohai Bai†, Xiaoxin Li†, Jie Lu†, Xuan Wang†, Gerard L. Velthof‡, David Chadwick§, Jiafa Luo⊥, Stewart Ledgard⊥, Zhiguo Wu∥, Shuqin Jin#, Oene Oenema‡, Lin Ma*†, Chunsheng Hu*†View Author Information† Key Laboratory of Agricultural Water Resources, Center for Resources Research, Institute Genetic Developmental Biology, The Chinese Academy Sciences, 286 Huaizhong Road, Shijiazhuang...
Livestock production is important for food security, nutrition, and landscape maintenance, but it associated with several environmental impacts. To assess the risk benefits arising from livestock production, transparent robust indicators are required, such as those offered by life cycle assessment. A central question in approaches how burden allocated to products manure that re-used agricultural production. incentivize sustainable use of manure, should be considered a co-product long not...
Abstract Purpose This paper studies the carbon footprint and water scarcity (WSF) of a milk protein, beta-lactoglobulin, produced by cellular agriculture compares this to extracted dairy protein from milk. The calculations microbially proteins were based on model hypothetical industrial-scale facility. purpose study is examine role relative in meeting future demand for more sustainably high nutritional quality. Methods evaluated process considers beta-lactoglobulin production bioreactor...
New Zealand (NZ) is the world's largest exporter of sheep meat and an important beef. Given current concern about impact food production on climate change, it to understand extent greenhouse gas (GHG) emissions for NZ exported products. This Life Cycle Assessment study calculated cradle-to-grave carbon footprint beef produced in different markets. Sensitivity analyses were performed evaluate effect Global Warming Potential (GWP) metrics, sequestration by trees farms allocation methods at...