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Full-Text Articles in Life Sciences
A Modelling Approach: Effects Of Exuded Organic Acids And Exogenous Chelating Ligands On Bioavailability And Uptake Of Metals By Radishes (Raphanus Sativus) Grown In Hydroponics., Sergio A. Dominguez Romero
A Modelling Approach: Effects Of Exuded Organic Acids And Exogenous Chelating Ligands On Bioavailability And Uptake Of Metals By Radishes (Raphanus Sativus) Grown In Hydroponics., Sergio A. Dominguez Romero
Electronic Thesis and Dissertation Repository
Metal contamination of soil can be reduced by adding chelators to improve the efficiency of metal uptake in phytoremediation, but optimal concentrations and types of chelators have not been determined. A geochemical model (Visual MINTEQ3.1) was used to estimate the effects of four chelators on the solubility of four metals in hydroponic solution. The model showed that no iron was soluble in the absence of a chelator, while the solubilities of cadmium, copper and zinc were high with or without chelators. Despite low iron uptake in all treatments, symptoms of iron-deficiency were not visible. High concentrations of exuded organic acids …
Estimating Annual Forage Yields With Plant Available Water And Growing Season Precipitation, J. D. Holman, A. Obour, I. Kisekka, A. Schlegel, T. Roberts, S. Maxwell
Estimating Annual Forage Yields With Plant Available Water And Growing Season Precipitation, J. D. Holman, A. Obour, I. Kisekka, A. Schlegel, T. Roberts, S. Maxwell
Kansas Agricultural Experiment Station Research Reports
Forage production is important for western Kansas region’s livestock and dairy industries and has become increasingly important as irrigation-well capacity declines. Forages require less water than grain crops and may allow for increased cropping intensity and opportunistic cropping. Being able to estimate forage production is important for determining forage availability versus forage needs. Data from several studies were used to quantify annual forage yield response to plant available water (PAW) at planting and growing season precipitation (GSP). In addition, water use efficiency was quantified. Forages evaluated included winter triticale, spring triticale, and forage sorghum.