Nitrogen leaching on many dairy farms is reducing as the farmers breed from LowN Sires bulls, says the marketer CRV Ambreed.

Nitrate poisoning usually occurs in late autumn or winter when nitrate levels in the feed are high, particularly during a flush of growth after a dry period.

Nitrate levels in Christchurch drinking water are not expected to exceed safe drinking levels in the future, says Waimakariri Irrigation Ltd.

OPINION: A misreported study from Denmark could spoil New Zealand’s reputation, or create health worries which are unfounded.

A sheep and beef farmer taking part in the big Forages for Reduced Nitrates Leaching (FRNL) research programme has found its stated goal of a 20% reduction in nitrate leaching out of reach.

The key to using a catch crop to reduce onfarm nitrate leaching is to get it in the ground as soon as possible after winter feeding, says Plant and Food scientist Dr Brendon Malcolm.

Game-changing new research into how plantain crops can reduce nitrogen (N) loss from dairy farms will see upper Manawatu farmers at the forefront of dairy science.

Plantain could ‘save’ some Manawatu dairy farmers faced with cutting nitrogen losses from pasture by 60%, comments DairyNZ.

A world-first denitrification wall at Silverstream, North Canterbury designed to reduce high groundwater nitrate levels is working as anticipated.

Farmers will have to look at their fundamental farming systems if they are to meet future nitrogen leaching limits.