Now showing items 1-4 of 4
Availability of phosphate fertilizers in unlimed and limed acid soils as affected by wetting and air-drying
(Lincoln University, 1991)
The interactions between air-drying and rewetting, and liming or timing of phosphate (P) fertilizer application on plant availability of monocalcium phosphate (MCP) or reactive phosphate rock (PR) fertilizers were studied ...
Estimating bioaccessibility, phytoavailability and phytotoxicity of contaminant arsenic in soils at former sheep dip sites
(Lincoln University, 2009)
Recognition that the bioavailability of soil As (As) is influenced by its soil dynamics has initiated research into development of more accurate, site-specific soil guideline values, departing from the assumption that the ...
An evaluation of irrigation-yield repsonse models for use with wheat & barley in Canterbury, New Zealand
(Lincoln College, University of Canterbury, 1986)
This study evaluated the ability of nine models to describe and predict the response of grain yield to flood irrigation of wheat and barley crops. The models may be divided into four groups: 1). Input-Output models 2). ...
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 ...