Now showing items 1-5 of 5
Influence of farm dairy effluent ammonium concentrations on soil N2O emissions
(Lincoln University, 2016)
Nitrous oxide (N₂O) is a potent greenhouse gas (GHG) and the single-most ozone (O₃) depleting substance. Agriculture is the dominant source of anthropogenic N₂O emissions globally, and especially in New Zealand. Urine, ...
The effect of alternative forage species and gibberellic acid on nitrate leaching
(Lincoln University, 2017-02-24)
Nitrogen (N) leaching from soil is a significant concern for intensively grazed forage-based systems because it can cause a decline in water quality. Urine patches are the main source of N leaching in these systems. In New ...
Dry matter production and botanical composition of three pastures species and their seed mixtures after an autumn sowing using two overall sowing rates
(Lincoln University, 2018-02-14)
Pastoral agriculture in New Zealand is based around the use of white clover and perennial ryegrass. Diploid perennial ryegrass, white clover and plantain were grown in monocultures, two-species mixes and three-species mixes ...
Effect of plantain (Plantago lanceolata L.) proportion in the diet on nitrogen use, milk production and behaviour of lactating dairy cows
(Lincoln University, 2017-02-07)
Expansion and intensification of dairy in pasture based systems whilst economic, creates environmental challenges through nitrate leaching and degradation of water quality. With pressure to reduce nitrate leaching and ...
Evaluation of perennial ryegrass cultivars for dairy production under different pasture management
(Lincoln University, 2017)
The main objective of this thesis was to evaluate perennial ryegrass (Lolium perenne L.) cultivars for dairy production under different pasture management. Five experiments were conducted in Canterbury, New Zealand to ...