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Citric acid influence on soil phosphorus availability
Journal of Plant Nutrition, 2017ABSTRACTCitric acid is a low-molecular-weight organic acid exuded by the plant roots. Organic anions derived from this acid compete for phosphorus (P) adsorption sites in clay minerals. The objective was to evaluate the P availability by application of P and citric acid tothe soil.
Sheila Renata Santos +3 more
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Studies of Phosphorus Availability in Organic Soils
Soil Science Society of America Journal, 1958Abstract Experiments were conducted on the phosphorus status of organic soils by correlating the phosphorus solubility in various extractants with percentage yields of tomato, peppermint, and onion. Seven different extractants, including water, were compared using four ratios of soil volume to extractant volume.
J. E. Larsen +2 more
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Phosphorus availability indices in calcareous lebanese soils
Plant and Soil, 1981Three indices of available P were evaluated with 20 mainly calcareous Lebanese soils using wheat (Triticum aestivum L.) and tomato (Lycopersicum esculentum L.) in the greenhouse. Both the NaHCO3-and anion exchange resin-extractable P were significantly correlated with P uptake. The relationship for NaOH−Na2C2O4 was not significant.
J. Ryan, A. G. Ayubi
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Phosphorus availability in two calcareous soils
2011A study was made of the influence of soil moisture tension and soil temperature on the availability of phosphorus from five different compounds in two calcareous soils. In the study of moisture tension, the top six inches of Machete stony sandy loam and of Nisconlith clay loam were treated with five phosphate carriers of varying water solubility ...
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Environmental Pollution
Cadmium (Cd) has become a major environmental concern, adversely affecting soil quality and crop productivity. Cd pollution disrupts soil nutrient cycling, particularly phosphorus (P), which is crucial for plant growth. In this study, we conducted a meta-analysis to assess the impact of Cd on soil phosphorus availability, followed by pot experiments ...
Wenzhe, Gao +6 more
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Cadmium (Cd) has become a major environmental concern, adversely affecting soil quality and crop productivity. Cd pollution disrupts soil nutrient cycling, particularly phosphorus (P), which is crucial for plant growth. In this study, we conducted a meta-analysis to assess the impact of Cd on soil phosphorus availability, followed by pot experiments ...
Wenzhe, Gao +6 more
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Evaluation of Soil Tests for Phosphorus Availability
Madras Agricultural Journal, 1969A number of methods are in use to determine the available phosphorus in soils. Some of these methods have given satisfactory results in certain soils, but none has been found to be applicable under all soil conditions. Hence in this study an attempt is made to compare a number of soil tests for available phosphorus with the phosphorus uptake by ragi ...
BALASUBRAMANIAN V, DURAIRAJ D
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Biological and Chemical Determination of Available Phosphorus in Soil
Zentralblatt für Bakteriologie, Parasitenkunde, Infektionskrankheiten und Hygiene. Zweite Naturwissenschaftliche Abteilung: Allgemeine, Landwirtschaftliche und Technische Mikrobiologie, 1973Summary A study for correlating some biological and chemical methods to determine available phosphorus as affected by some soil properties was carried out, using 30 Egyptian soil samples. The Aspergillus method appeared to be superior in the quantities of phosphorus extracted from soil, followed by the Olsen and then the Egner method.
M S, Saber, M A, Guirguis, M R, Zanati
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Relationships between Biosolids Treatment Process and Soil Phosphorus Availability
Journal of Environmental Quality, 2001ABSTRACTLaws mandating phosphorus (P)‐based nutrient management plans have been passed in several U.S. Mid‐Atlantic states. Biosolids (sewage sludge) are frequently applied to agricultural land and in this study we evaluated how biosolids treatment processes and biosolids P tests were related to P behavior in biosolids‐amended soils.
R O, Maguire +4 more
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Soil Science Society of America Journal, 1964
Abstract The forms of P in 24 soils were determined by chemical fractionation. The available P was determined by plant growth experiments. Regression analysis of the P fractions with available P showed that iron P explained most of the variation.
A. H. Al‐Abbas, S. A. Barber
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Abstract The forms of P in 24 soils were determined by chemical fractionation. The available P was determined by plant growth experiments. Regression analysis of the P fractions with available P showed that iron P explained most of the variation.
A. H. Al‐Abbas, S. A. Barber
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Journal of Environmental Management, 2020
Legacy phosphorus (P) in soil, accumulated over several years of fertilizer application in excess of crop demand, represents a huge and largely untapped resource. P activators can increase the availability of this P to plants by accelerating its transformation into soluble P fractions.
Zedong, Teng +5 more
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Legacy phosphorus (P) in soil, accumulated over several years of fertilizer application in excess of crop demand, represents a huge and largely untapped resource. P activators can increase the availability of this P to plants by accelerating its transformation into soluble P fractions.
Zedong, Teng +5 more
openaire +2 more sources