Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 4 of 4 for “"fertiliser management"”.
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Soil properties, lime and phosphorus fertiliser management affecting grass production in Ireland
… its remaining lifespan. In Ireland current P fertiliser recommendations do not account for soil type differences, but large differences in fertiliser P responses can exist across differing soil types. The use of this one size fits all P fertiliser recommendation system can result in the …
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Cadmium accumulation in agricultural soils
… New Zealand (NZ) soils as a result of phosphate fertiliser application. Cadmium is a biotoxic heavy metal and can be adsorbed by soil and enter the human food chain. Three objectives were investigated in this thesis: 1. Determine if the distribution of Cd varies between soils with contrasting …
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The release of nitrogen and carbohydrate from herbage during comminution
… explored the effect of increasing rates of N fertiliser application (0, 100, 200 and 350 kg N/ha/y) on herbage characteristics and release of N. Herbage was collected from swards of perennial ryegrass, lucerne, chicory and plantain in May (autumn) and November (spring) 2015. Increasing N …
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Effect of replacing nitrogen fertiliser with gibberellic acid on response of perennial ryegrass and white clover pasture : A thesis submitted in partial fulfilment of the requirements for the Degree of Doctor of Philosophy at Lincoln University
… allowed to use high rates of nitrogen (N)-based fertiliser to achieve maximum pasture production due to the associated losses of N through nitrate leaching and nitrous oxide emissions. Gibberellic acid (GA), a naturally occuring phytohormone, has shown in short term studies, to increase, then …