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Influence of soil pH, phosphorus and sulphur on the frequency of rhizobia genotypes found in four pasture legume species grown in an acid high country soil
(Lincoln University, 2014)
South Island hill and high country soils typically have deficiencies of nitrogen, phosphorus, sulphur and molybdenum. The soils often have low pH and as such, high levels of exchangeable aluminium and manganese, causing ...
Lime, phosphorus and sulphur response of French serradella (Ornithopus sativus) grown in an acid upland soil
(International Scientific Publications, 2014-06-01)
Soil acidity severely restricts legume persistence and growth in grazed upland agriculture in New Zealand. An alternative and potentially acid tolerant forage legume, French serradella (Ornithopus sativus), was examined ...
Role of mixed herb leys in New Zealand organic cropping systems
(Lincoln College, University of Canterbury, 1989)
Above ground dry matter production, sward composition, and herbage mineral levels were measured from three ley mixtures sown on a Wakanui silt loam, Lincoln College, Canterbury. Additionally soil fertility (exchangeable ...
Fertilizer and stocking rates on two King Country soils
(New Zealand Grassland Association., 1973)
Parent materials such as volcanic ash and sedimentary siltstone
and sandstone form soils which differ markedly in their physical
and chemical properties. In stocking x fertilizer rate trials on
two families of soils, ...
Microbiological risk assessment of fresh produce grown in Canterbury, New Zealand
(Lincoln University, 2015)
A recent trend to consume healthy foods has led to greater preference for natural food and raw vegetables. At the same time, concerns have increased about the microbiological risks of fresh produce. This thesis focusses ...
A synergistic mitigation technology for nitrate leaching and nitrous oxide emissions for pastoral agriculture
(International Nitrogen Workshop 2012., 2012)
In grazed grassland, most of the nitrate (NO3-) leaching and nitrous oxide (N2O) emissions come from the animal urine-N returned to the pasture by the animal during outdoor grazing (Di and Cameron, 2002a). The N loading ...
The growth of grasses and legumes on a sequence of acid soils as affected by liming and phosphate fertiliser
(Lincoln College, University of Canterbury, 1974)
The causes of differential growth of lucerne, lotus, ryegrass and brown top on a range of three acid soils were investigated by means of pot trials carried out in the glasshouse.
Of the four species, lucerne was affected ...
Development of mechanistic energy balance models for grassland
(Lincoln University, 1996)
Grasslands are responsible for a significant percentage of the world's food supplies and, due to their large geographical extent, have an important influence on global climate. Major determinants of grassland productivity ...
Phosphorus legacy: role of long-term soil phosphorus accumulation in the sustainable management of intensive agroecosystems
(Lincoln University, 2017-08-02)
Phosphorus (P) is an essential nutrient for all organisms. Phosphate rock is primarily utilised for the manufacture of P fertilisers, and is a finite resource. Most agricultural lands worldwide present low levels of available ...
Ammonia emissions from cattle urine and dung excreted on pasture
(Copernicus Publications on behalf of the European Geosciences Union, 2012-09-26)
Twelve cattle were kept for three days in a circular area of 16 m radius on short pasture and fed with freshly-cut pasture. Ammonia (NH₃) emissions from the urine and dung excreted by the cattle were measured with a ...