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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, ...
Interactions between pasture species and management and their implications for evaluating perennial ryegrass (Lolium perenne L.) cultivars in dairy systems
(Lincoln University, 2016-07-19)
An index to rank perennial ryegrass cultivars based on their relative economic benefit to pasture-based dairy systems, has been developed in New Zealand (Chapman et al., 2016; DairyNZ) in recent years. Performance values ...
Intraspecific differences in the response of perennial ryegrass (Lolium perenne L.) to drought
(Lincoln University, 2016-11-14)
Perennial ryegrass (Lolium perenne L.) has traditionally been the grass species of choice for most New Zealand regions and is currently an important component of our highest-producing pastures. However perennial ryegrass ...
Seed yield and carbohydrate distribution in perennial ryegrass (Lolium perenne L.) and Italian ryegrass (Lolium multiflorum L.) seed crops
(Lincoln University, 2016-06-29)
A field experiment was conducted to quantify the carbohydrate distribution in perennial (Lolium perenne L.) and Italian ryegrass (Lolium multiflorum L.) seed crops from anthesis to harvest. To do this, first year crops of ...
Understanding pasture performance: the interaction between perennial ryegrass and viruses
(Lincoln University, 2016-12-14)
In New Zealand livestock-based agriculture is an essential component of the economy, and at the very core of the majority of livestock-based farming systems in New Zealand is a pasture comprised of perennial ryegrass (Lolium ...
Effect of grass species and sowing methods on Pyronota species (P. setosa and P. festiva: Scarabaeidae) in a traditional farm system
(Lincoln University, 2016-07-11)
Manuka beetles (Pyronota festiva and P. setosa) have become a serious and persistent pest on developed land on the West Coast of New Zealand. The broad spectrum insecticide diazinon has failed to adequately control this ...