Search
Now showing items 1-10 of 209
A Study of the fate and transport of estrogenic hormones in dairy effluent applied to pasture soils
(Lincoln University, 2009)
The disposal of waste from agricultural activities has been recognised as a source of environmental contamination by endocrine disrupting chemicals (EDCs). The New Zealand dairy industry produces a large volume of dairy ...
Sustainable restoration of mine sites
(Lincoln University, 2009)
A sustainable approach to restoration of the post-mining landscape involves creating conditions where a viable growth medium can be established with the minimal amount of fertiliser inputs over a period of time. Ideally, ...
Effects of cow urine and its constituents on soil microbial populations and nitrous oxide emissions
(Lincoln University, 2009)
New Zealand’s 5.3 million strong dairy herd returns approximately 106 million litres of urine to pasture soils daily. The urea in that urine is rapidly hydrolysed to ammonium (NH₄⁺), which is then nitrified, with denitrification ...
Floral resources for the enhancement of the efficacy of Diadegma semiclausum (Helen) (Hymenoptera: Ichneumonidae), a parasitoid of Plutella xylostella (L.) (Lepidoptera: Hyponomeutidae) in broccoli (Brassica oleracea L. var. italica)
(Lincoln University, 2004)
In this thesis, conservation biological control experiments have been conducted in the broccoli agro-ecosystem in New Zealand, to target the diamondback moth (Plutella xylostella (L.) (Lepidoptera: Hyponomeutidae)) and its ...
Role of mycorrhizae in rhizosphere processes and phosphorus dynamics
(Lincoln University, 2010-01)
The increased soil organic phosphorus (P) mineralization observed under trees compared to pasture has been attributed to the contrasting mycorrhizal associations of the two systems but to date, little work has been conducted ...
Variability of harvest index in four grain legume species
(Lincoln University, 2001)
Grain legumes have the potential to be high yielding crops in Canterbury. However, like most grain legumes the problem of harvest index (HI) variability in Cicer arietinum, Lens culinaris, Lupinus angustifolius and Pisum ...
Predator interactions within a trophic level : Phalangium opilio L. (Arachnida: Opiliones) and mites (Arachnida: Acari)
(Lincoln University, 2000)
This study investigated commensal feeding interactions between the European harvestman (P. opilio L.) and the predatory mites Balaustium spp. and Anystis baccarum L. It also investigated the feeding behaviour of P. opilio. ...
The effect of environmental stressors on the immune response to avian infectious bronchitis virus
(Lincoln University, 2006)
The first aim of this research was to determine the prevalence of IBV in broilers within the
Canterbury province, New Zealand, in late winter and to search for associations with
management or environmental factors. The ...
Bioavailability of cadmium, copper, nickel and zinc in soils treated with biosolids and metal salts
(Lincoln University, 2010)
It is widely accepted that bioavailability, rather than total soil concentration, is preferred when assessing the risk associated with metal contamination. Despite this, debate continues on what constitutes a bioavailable ...
Effects of alternative grass species on grazing preference of sheep for white clover
(Lincoln University, 2008-09-23)
Despite the importance of a high white clover (Trifolium repens) content in temperate pastoral systems in terms of livestock performance and nitrogen fixation, the proportion of white clover in grass-clover pastures is ...