Search
Now showing items 11-20 of 111
The effect of DCD on nitrogen losses from sheep urine patches applied to lysimeters in autumn
(New Zealand Grassland Association, 2010)
The intensification of modern pastoral agriculture
has increased the risk of environmental degradation.
The use of nitrification inhibitor technology has been
shown to reduce nitrate (NO₃
⁻) leaching losses and
nitrous ...
Nutrient management on the Lincoln University dairy farm: "nutrient budgeting for efficient production"
(South Island Dairy Event (SIDE)., 2007-06)
Nutrient management plays an important role in any dairy farming system. Soil fertility
status and fertiliser inputs are key drivers of pasture and animal production, whilst fertiliser
represents a significant annual cost ...
Can a winter-sown catch crop reduce nitrate leaching losses after winter forage grazing?
(Fertilizer and Lime Research Centre, 2016)
Direct grazing of winter forage crops to feed non-lactating, pregnant dairy cows prior to calving is a common management practice in the New Zealand South Island. However, the high crop yields per hectare grazed, combined ...
Potential pasture nitrogen concentrations and uptake from autumn or spring applied cow urine and DCD under field conditions
(MDPI, 2016-06)
Nitrogen (N) cycling and losses in grazed grassland are strongly driven by urine N deposition by grazing ruminants. The objective of this study was to quantify pasture N concentrations, yield and N uptake following autumn ...
Inhibition of ammonia oxidisers to control nitrification rate under simulated winter dairy forage grazing conditions: An incubation study
(Fertilizer and Lime Research Centre, 2013)
The microbial process of nitrification plays a key role within the soil nitrogen cycle. Nitrification is the process where ammonia is oxidised to nitrite and then to nitrate and this process can have major negative ...
Nitrogen fertilizer and urine patch interaction-use of APSIM to aid experimental design
(Fertilizer and Lime Research Centre, Massey University, 2011-02)
Previous studies have shown that leaching losses from pasture-based systems occurs predominantly from urine deposited by grazing animals, but also following fertiliser application. However, there is limited understanding ...
Nitrate leaching and nitrous oxide emissions related to bacteria and not to archaea in nitrogen rich grassland soils
(International Union of Soil Sciences, 2010-08)
The oxidation of ammonia (NH₃) to nitrate (NO₃⁻) is a key process in the global nitrogen (N) cycle which has
major ecological and environmental implications both in influencing nitrous oxide (N₂O) emissions and NO₃⁻ leaching. ...
Dicyandiamide (DCD) reduces nitrate losses from Irish soils
(International Union of Soil Science, 2010-08)
Nitrate leaching is a concern for both environmental and public health reasons. Because of this European
farmers are being increasingly regulated to reduce nitrate losses. Dicyandiamide (DCD) has been shown to
reduce nitrate ...
Urine patch area coverage of an intensively stocked dairy pasture
(International Union of Soil Science, 2010-08)
The urine patch of the grazing cow has been identified as the key source of N loss from pasture-based dairy
systems. Although critical to N modelling, quantitative data on the annual area coverage of urine patches in
pastures ...
Confirmation of co-denitrification in grazed grassland
(Nature Publishing Group, 2015-11-30)
Pasture-based livestock systems are often associated with losses of reactive forms of nitrogen (N) to the environment. Research has focused on losses to air and water due to the health, economic and environmental impacts ...