Search
Now showing items 31-40 of 814
The influence of gamma irradiation on dry seeds of lucerne, cv. Wairau
(Lincoln College, University of Canterbury, 1974)
Lucerne (Medioago sativa L. 2n=32) is one of the chief forage crop plants and has an increasing importance in the New Zealand farming system.
The natural variability in lucerne is considerable. This is mainly because ...
Some aspects of the biology, population dynamics and economic status of Wiseana cervinata (Walker) (Hepialidae: Lepidoptera)
(Lincoln College, University of Canterbury, 1973)
Entomology, like many other biological disciplines has developed into a quantitative science in nearly all aspects of the subject. Insect ecology is no exception, and in fact, has probably received more attention recently ...
Role of organic sulphur in supplying sulphate for plant growth
(Lincoln College, University of Canterbury, 1989)
An open system of incubation was developed to measure sulphur mineralisation in a wide range of New Zealand soils. During 10 weeks of incubation at 30°C, the amount of sulphur mineralised varied from 2.9 to 26.8 µg sulphur ...
The effect of environmental factors and crop interference on the biology of yarrow (Achillea millefolium L.) seed and seedlings
(Lincoln College, University of Canterbury, 1983)
A population of 58 seedling yarrow (Achillea millefolium) plants m⁻² produced approximately 243,000 viable seeds per square metre in the first season of growth and development. Approximately 10% of the freshly harvested ...
National parks in New Zealand : conservation or preservation?
(Lincoln College, University of Canterbury, 1987)
Natural protected areas are a resource for, and in which, a wide range of
values is identified; market value, non-market value, and intrinsic value.
National park history, philosophy and legislation is interpreted to ...
Towards integrated pest management of phythophagous insects in Tasmanian blackwood (Acacia melanoxylon) plantations in New Zealand
(Lincoln University, 1999)
Acacia melanoxylon provenance trials were assessed to investigate: (1) The degree to which insect populations influence growth and the change from juvenile to mature foliage. (2) How tree growth rates and overall performance ...
Information system design for the rationalisation of fungicide use : the control of Puccinia hordei Otth
(Lincoln College, University of Canterbury, 1983)
Considerable scope exists for the reduction of the primary and secondary costs associated with crop protection, by the formulation of judicious fungicide application regimes. The design, building and operation of a farm-level ...
The role of soil organic matter in the sustainable management of the grass grub Costelytra zealandica (White) in Canterbury pastures
(Lincoln University, 1994)
Larvae of Costelytra zealandica (White) have historically been considered as important pests in New
Zealand pastures. Control of this species has mainly been based on the green revolution paradigm. In recent years, this ...
Biological control of onion white rot using Trichoderma harzianum
(Lincoln University, 2001)
The biological control of Sclerotium cepivorum, the causal agent of onion white rot, by Trichoderma harzianum and T. virens was studied in a glasshouse trial. T. Harzianum (isolates C52 and D73) and T. virens (isolate GV4) ...
Quantifying the economic value of ecosystem services on arable farmland: a bottom-up approach
(Lincoln University, 2007)
The study concerns the evaluation and quantification of the economic value of ecosystem services (ES) or nature's services in arable farmland. The importance of ES is now very well established and ES have been demonstrated ...