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Article
Effects of Biochar and Biosolid on Adsorption of Nitrogen, Phosphorus, and Potassium in Two Soils
Increasing the retention of nutrients by agricultural soils is of great interest to minimize losses of nutrients by leaching and/or surface runoff. Soil amendments play a role in nutrient retention by increasi...
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Article
Evaluation of Poultry Litter Amendment to Agricultural Soils: Leaching Losses and Partitioning of Trace Elements in Collard Greens
Leaching of trace metals and greenhouse plant growth (Collard greens; Brassica oleracea var. acephala) response studies were conducted in two types of soils with contrasting characteristics amended with varying r...
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Article
Moisture Quotients for Ammonia Volatilization from Four Soils in Potato Production Regions
Ammonia (NH3) emission from nitrogen (N) fertilizers used in agriculture decreases N uptake by the crop and negatively impacts air quality. In order to better understand the factors influencing NH3 emission from ...
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Article
Freezing behavior of potato (Solanum tuberosum) tubers in soil
Volunteer potatoes are a major weed problem in potato rotations in regions with mild winter soil temperatures. Freezing dynamics of potato tubers in air have been previously reported, but freezing dynamics of ...
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Article
Incinerated Sewage Sludge Products as Amendments for Agricultural Soils: Leaching and Plant Uptake of Trace Elements
Preliminary leaching column and greenhouse plant uptake studies were conducted in two soils with contrasting characteristics amended with varying rates (0 to 148.3 Mg ha−1) of incinerated sewage sludge (ISS) and ...
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Chapter and Conference Paper
Removal of Trace Elements from Aqueous System: Comparison of Two Fly Ash Materials
A comparative study was initiated to assess the feasibility of using fly ash FA for the removal of selected trace elements from wastewater and industrial effluents. The specific objectives of this study were t...
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Article
Best Nitrogen and Irrigation Management Practices for Citrus Production in Sandy Soils
Drinking water monitoring data have indicated anincrease in nitrate-nitrogen (NO3-N) concentration ingroundwater in some parts of the citrus production region ofFlorida. A proactive, incentive-based program of de...
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Chapter
Comparative Study of Elemental Transport and Distribution in Soils Amended with Fly Ash and Sewage Sludge Ash
Disposal of various coal combustion and municipal by-products is a serious and challenging problem due to strict environmental regulations. This is due to the threat of accumulation of certain heavy metals in ...
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Article
Clinoptilolite zeolite and cellulose amendments to reduce ammonia volatilization in a calcareous sandy soil
Leaching of nitrate (NO3 −) below the root zone and gaseous losses of nitrogen (N) such as ammonia (NH3) volatilization, are major mechanisms of N loss from agricultural soils. New techniques to minimize such los...
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Article
Relating potato yield and quality to field scale variability in soil characteristics
Causes of within-field spatial variability in potato (Solarium tuberosum L.) yield are not well understood. To address this, a study was conducted from 1998 to 2000 on a commercial farm in southeastern Washington...
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Chapter
Fertiliser and irrigation best management practices (BMPs) for optimal citrus production and water quality in sandy entisols of Florida
In order to increase efficient use of applied fertiliser by citrus, economically feasible best irrigation and fertiliser management practices (BMPs) are necessary. A six year field study was conducted on a wel...
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Article
An evaluation of plant-available soil nitrogen in selected sandy soils by electro-ultrafiltration, KCl, and CaCl2 extraction methods
Improving the precision in estimating the nitrogen (N) requirement for citrus trees on sandy soils is important for increasing N efficiency by the trees and minimizing potential losses of N in commercial citr...
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Article
Use of the Urease Inhibitor N-(n-BUTYL)-Thiophosphoric Triamide Decreased Nitrogen Leaching from Urea in a Fine Sandy Soil
Application of soluble forms of nitrogen (N) fertilizers to citrus trees in sandy soils of central Florida may cause leaching of NO 3 − below the rooting depth...
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Article
Effects of nitrogen fertilization of grapefruit trees on soil acidification and nutrient availability in a Riviera fine sand
Nitrogen (N) fertilizer applied in the NH4+ form results in some degree of soil acidification, which could influence nutrient availability to plants and nutrient losses through leaching. Effects of various N r...
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Chapter
Effects of Fly Ash and Sewage Sludge Amendments on Transport of Metals in Different Soils
Utilization of coal combustion by-products as agricultural soil amendments is of considerable importance not only as an avenue to dispose these by-products but also to explore the potential advantages as sourc...
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Article
Transport of Phosphorus and Fractionation of Residual Phosphorus in Various Horizons of a Spodosol
The retention and transport of P by three horizon samples (A, E, and Bh) of a Spososol (Oldsmar sand: sandy, silicious, hyperthermic Alfic Arenic Haplaquods) were evaluated using a batch-equilibration and leac...
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Chapter
Leaching of Metals from Soils Amended with Fly Ash and Organic Byproducts
Fly Ash (FA) is a major component of coal combustion by-products in the process of producing electricity. Increased demand for power generation caused an increase in production of FA. Most of the FA is current...
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Article
Distribution of rainfall and soil moisture content in the soil profile under citrus tree canopy and at the dripline
The plant canopy intercepts rain and thus can alter the distribution of water under the canopy as compared to that along the dripline. The effects of a citrus (Citrus sinensis L. Osbeck) tree (25-year-old, Valen...
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Reference Work Entry In depth
Soil pollution
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Reference Work Entry In depth
Fertilizer
