Displaying items by tag: nitrogen
Preventing nitrogen getting into waterways is high on the priority list for many farmers and growers.
OPINION: In recent years, New Zealand’s farmers have found themselves subject to increasingly strict rules and regulations.
While it is well known that nitrate leeching is a major problem with cattle – both dairy and beef – what about with sheep grazing?
Widespread use of genetics for low-N dairy cows could result in a 20% reduction in nitrogen leaching in 20 years, says CRV Ambreed.
The Government’s decision to cap nitrogen fertiliser inputs at 190 kg N/ha per year is doomed to fail because it ignores basic science, claims soil scientist Doug Edmeades.
New research is seeking to understand the role hardy catch crops can play in reducing nitrate leaching.