Zobrazeno 1 - 10
of 127
pro vyhledávání: '"Agricultural chemistry & fertilizers"'
Autor:
Prowse, Gareth Michael
The potential for a quantitatively produced garlic oil for use as an insecticide was investigated. The study assessed the garlic oils efficacy in the laboratory and in the field, as well as its physiological effect on three key enzymes noted for thei
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.273635
Autor:
Donnelly, Eric
To assess the availability of bracken and the factors influencing frond yields, this thesis investigated the growth and phenology of bracken populations across Scotland in relation to site characteristics. The change in elements in fronds and litter
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.274892
Autor:
Pasquini, Margaret
This thesis examines soil fertility management strategies in dry season irrigated vegetable production (DSIVP) in peri-urban areas of Jos, Nigeria. Farmers have developed a complex strategy of mixing inorganic fertilisers with organic manure and town
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.251918
Autor:
Woodhouse, Stephen David
The toxicity of plant lectins to insects after oral ingestion was investigated by incorporating the proteins into insect diets. Bioassays carried out using an artificial diet system demonstrated that kidney bean (Phaseolus vulgaris) lectin (PHA) caus
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.272516
Autor:
Pirgozliev, Vassil R.
The nutritive values of twelve samples of different UK wheat cultivars from two different growing years were assessed. A series of chicken feeding experiments were conducted to examine the relationships between chemical composition, grain quality and
Externí odkaz:
https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311858
Autor:
Ghorbani, Reza
Amaranthus retroflexus is a common annual weed world-wide and causes substantial yield reduction in many crops. In this research program three main objectives were fulfilled: firstly the effect of certain environmental parameters on germination and e
Externí odkaz:
http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.322589