Search
Now showing items 1-10 of 18
The spatial coverage of dairy cattle urine patches in an intensively grazed pasture system
(Cambridge University Press, 2010-12-23)
Accurate field data on the paddock area affected by cow urine depositions are critical to the estimation and modelling of nitrogen (N) losses and N management in grazed pasture systems. A new technique
using survey-grade ...
Advances in Plant Sciences
(2020-07-02)
Within this special issue of NZJA entitled ‘Advances in Plant Sciences’ we present a collection of papers which bring new science to the discipline of grassland plants. Of the 14 papers contained in this issue, 6 relate ...
Dry matter yield, root traits, and nodule occupancy of lucerne and Caucasian clover when grown in acidic soil with high aluminium concentrations
(Springer Verlag on behalf of the Royal Netherlands Society of Agricultural Science, 2017-07)
Aims and methods: Lucerne and Caucasian clover dry matter were measured in response to recommended lime and capital P inputs for six years in an acidic soil in the New Zealand high country. The initial three years of the ...
The effect of urinary nitrogen loading rate and a nitrification inhibitor on nitrous oxide emissions from a temperate grassland soil
(Cambridge University Press, 2014-12)
Nitrous oxide (N₂O) emissions associated with urine nitrogen (N) deposition during grazing are a major component of greenhouse gas emissions from domestic livestock. The present study investigated the relationship between ...
Influence of plant growth and root architecture of Italian ryegrass (Lolium multiflorum) and tall fescue (Festuca arundinacea) on N recovery during winter
(John Wiley & Sons Ltd, 2015-12)
© 2015 John Wiley & Sons Ltd. Nitrate (NO₃⁻) leaching is an environmental and health concern. In grazed pasture systems, NO₃⁻ leaching primarily occurs beneath animal urine patch areas due to high nitrogen (N) loading and ...
Computer-based evaluation of methods to sample nitrate leached from grazed pasture
(Wiley on behalf of the British Society of Soil Science, 2012-03)
Scientists, land managers and environmental regulators all want to quantify the amount of nitrate leached into groundwater to better understand and manage the risk of environmental contamination from agricultural land, ...
Surface runoff and losses of phosphorus from hydrophobic pastoral soils
(Elsevier, 2022-02-01)
The impact of soil water repellency (SWR) on soil phosphorus (P) mobility in surface water runoff remains contentious. Although SWR may cause a significant increase in surface runoff, especially in post-summer rainfall ...
Phosphorus response and efficiency of four adventive annual clovers grown in a New Zealand high country soil under glasshouse conditions
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2013)
Maintaining and increasing legume abundance is a critical component of pastoral intensification, increasing nitrogen inputs to nitrogen deficient New Zealand high and hill country pastures and improving feed quality. ...
Soil carbon stock beneath an established irrigated pasture grazed by dairy cattle
(Taylor & Francis on behalf of the Royal Society of New Zealand, 2015)
Soils were sampled at intervals to 0.8 m depth on an irrigated dairy farm in the Canterbury region of New Zealand and a nearby (control) area with unimproved grasses which was not known to have been irrigated, fertilised ...
A meta-analysis of exchangeable aluminium in New Zealand soils using the National Soils Database
(CSIRO Publishing, 2019-02-01)
Soil acidification and associated aluminium toxicity are critical issues in New Zealand, particularly in high and hill country areas. However, there have been few studies that have examined the key drivers of exchangeable ...