Now showing items 1-10 of 37
Tillage and water content effects on surface soil hydraulic properties and shortwave albedo
(Soil Science Society of America, 1993)
The modification of surface soil structure affects soil-water processes important in crop production and soil conservation. Effects of pretillage soil water content (PTSW) with multiple-pass tillage operations were determined ...
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 ...
Dairying and the environment
(South Island Dairy Event (SIDE), 2001-06)
Over the past decade, there has been a rapid increase in dairy farming in the South Island. A number of the newly established dairy farms are on free-draining course-textured or stony soils. Nitrate leaching from intensive ...
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 ...
The effectiveness of nitrification inhibitor technology to improve the sustainability of agriculture
(NZ Institute of Primary Industry Management (NZIPIM), 2009-12)
As reported widely in the general media and also in recent editions of Primary Industry Management, there is increasing recognition of the need to improve the sustainability of New Zealand agricultural systems. Fonterra’s ...
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 ...
The potential role of the nitrification inhibitor DCD for reducing nitrate leaching from grazed grassland
(Agricultural Research Forum 2008., 2008-03)
The objective of this lysimeter experiment was to assess the effect of DCD (dicyandiamide), a commercially used nitrification inhibitor, on nitrate leaching from Irish grassland soils after urine and fertiliser applications.
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. ...
Monitoring effects of Southland demonstration farm on stream water nitrate
The objective of this research work was to monitor the effects of the Southland Demonstration Farm on the concentration and amount of nitrate in the Tomoporakau Creek. The creek runs through the central area of the farm ...
The fate of urine nitrogen: A grassland lysimeter study in Ireland
(Fertilizer and Lime Research Centre, 2014-02)
In grazed pasture systems, the nitrogen (N) contained in a cattle urine patch may be up to 1200 kg N ha⁻¹. The majority of this N is in excess of plant requirements and is vulnerable to environmental loss. In this study, ...