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The effects of foliar diseases and irrigation on root development, yield and yield components of wheat (Triticum aestivum L.)
(Lincoln College, University of Canterbury, 1985)
Studies were conducted on three field trials of wheat cv. Kopara to investigate the lack of compensation by later determined components of yield because of early disease constraints. The investigation was based on the ...
Simulation-based design of water harvesting schemes for irrigation
(Lincoln College, University of Canterbury, 1981)
For large areas of New Zealand that suffer from agricultural drought, the only practicable way of providing irrigation is through the use of water harvesting schemes that divert winter flood water in nearby streams into ...
An information system for planning agricultural development in the Kingdom of Tonga
(Lincoln College, University of Canterbury, 1980)
Past development efforts in the Kingdom of Tonga are reviewed in relation to the goals of reducing poverty, unemployment and inequality. It is shown that progress has been strictly limited and evidence is provided to support ...
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 ...
The monitoring of complex natural systems - aspects of ecosystem management using wetlands as examples
(Lincoln University, 1998)
The Resource Management Act (1991) created a major shift in the legislative framework for environmental management in New Zealand. The Act devolved power to local and regional government, and focused on the environmental ...
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, ...
Humic acid protonation, metal ion binding and metal complex dissociation kinetics
(Lincoln University, 1990)
Two humic acids have been studied in terms of: (i) their ability to bind H⁺, Cd²⁺ and Cu²⁺, and; (ii) the rates of dissociation of their Cu²⁺ complexes.
For both Summit Hill and Waimari Peat humic acids, the protonation ...
Effect of physiological and behavioural characteristics of parasitoids on host specificity testing outcomes and the biological control of Paropsis charybdis
(Lincoln University, 2010)
An established host-parasitoid-hyperparasitoid system was used to investigate how the physiological and behavioural characteristics of parasitoids influence the outcomes of laboratory-based host specificity tests. The ...
Intraspecific variation in Microctonus hyperdoae and M. aethipopides (Hymenoptera: Braconidae); significance for their use of biological control agents
(Lincoln University, 1995)
Microctonus aethiopoides Loan and M. hyperodae Loan (Hymenoptera: Braconidae; Euphorinae) are parasitoids introduced to New Zealand to assist suppression of the lucerne pest Sitona discoideus Gyllenhal and the pasture pest ...
Sorption behaviour and plant availability of copper in soils
(Lincoln College, University of Canterbury, 1988)
Some New Zealand soils were shown to have a high affinity for low concentrations of added copper. Between 95 - 100% of added copper was adsorbed by these soils. Adsorption isotherm gradients calculated using total solution ...