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Phosphorus Characterization In Sri Lankan Alfisols
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Book Synopsis Phosphorus Characterization in Sri Lankan Alfisols by : Robert R. Sattell
Download or read book Phosphorus Characterization in Sri Lankan Alfisols written by Robert R. Sattell and published by . This book was released on 1989 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Twelve Sri Lankan Alfisols were characterized for P. Soils were incubated for three weeks with sufficient P applied (P2) to elevate soil solution P to 0.2 ug P/g solution as determined by sorption curves, with 75 percent of P2 (P1), and without P (P0). For PO treatments, (a) organic P, (b) 0.5 M NaHCO3 extractable "labile" inorganic P, (c) 0.1 M NaOH extractable "moderately labile" inorganic P, and (d) concentrated HC1 extractable residual P fractions contained 44, 10, 13, and 22 % of total P respectively. Fifty five percent of applied P (P1 and P2) was recovered in the inorganic 0.5 M NaHCO3 fraction and 25 percent in the inorganic 0.1 M NaOH fraction. Significant amounts of applied P were recovered in the organic fractions of some soils. Factor analysis of PO treatment fractionation data suggested that inorganic and organic fractions were separate equilibrium systems. Both inorganic and organic systems, however, contributed significantly to P uptake in a Neubauer experiment. Moreover, applied fertilizer P appeared to increase contributions of organic P to P uptake. Correlation of Neubauer plant uptake data to Olsen, Bray 1, Bray 2, CAL, and Double acid extractable soil P showed that P uptake was most highly correlated to Double acid extractable P. Regression analysis suggested that the higher correlation was due to the Double acid extractant's ability to measure the organic P contribution to P uptake. Phosphorus sorption by the soils ranged from low to medium and was described satisfactorily by either the Langmuir two surface or the Freundlich equation but not by the Langmuir one surface equation. Correlation analysis indicated that oxalate extractable Fe was the soil component most active in P sorption. Although organic matter and pH were correlated to sorption capacity and may have been directly involved in the P sorption mechanisms they could also have covaried with other components responsible for sorption. Although citrate-dithionite extractable Fe did not appear to be involved in P sorption its high correlation with residual P fractions suggests an involvement with "slow" sorption. Phosphorous sorption had no apparent influence on P uptake by foxtail millet from the 12 soils in a Neubauer experiment.
Book Synopsis Phosphorus Release Characteristics, Forms and Plant Uptake in Alfisols of Deferential P Status by : Emal
Download or read book Phosphorus Release Characteristics, Forms and Plant Uptake in Alfisols of Deferential P Status written by Emal and published by . This book was released on 2011 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Masters Theses in the Pure and Applied Sciences by : W. H. Shafer
Download or read book Masters Theses in the Pure and Applied Sciences written by W. H. Shafer and published by Plenum Publishing Corporation. This book was released on 1992 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses Listed by Discipline: Aerospace Engineering. Agricultural Economics, Sciences and Engineering. Architechtural Engineering and Urban Planning. Astronomy. Astrophysics. Ceramic Engineering. Communications Engineering and Computer Science. Cryogenic Engineering. Electrical Engineering. Engineering Mechanics. Engineering Physics. Engineering Science. Fuels, Combustion, and Air Pollution. General and Environmental Engineering. Geochemistry and Soil Science. Geological Sciences and Geophysical Engineering. Geology and Earth Science. Geophysics. Industrial Engineering. Marine and Ocean Engineering. Materials Science and Engineering. Mechanical Engineering and Bioengineering. Metallurgy. Meteorology and Atmospheric Science. 17 additional disciplines. Index.
Book Synopsis Synthesis and Characterization of Nano Phosphorus Fertilizers and Evaluating Its Efficacy on Maize Productivity and Phosphorus Use Efficiency in Alfisol by : C.M. Rashmi
Download or read book Synthesis and Characterization of Nano Phosphorus Fertilizers and Evaluating Its Efficacy on Maize Productivity and Phosphorus Use Efficiency in Alfisol written by C.M. Rashmi and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Role of Phosphorus Cycling and Soil Physical Properties in Governing the Bioavailability of Phosphorus in a Tropical Ultisol by : Bruce Alan Linquist
Download or read book The Role of Phosphorus Cycling and Soil Physical Properties in Governing the Bioavailability of Phosphorus in a Tropical Ultisol written by Bruce Alan Linquist and published by . This book was released on 1995 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Detailed Phosphorus Characterization of Seventy-eight Soils by :
Download or read book A Detailed Phosphorus Characterization of Seventy-eight Soils written by and published by . This book was released on 1985 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Analysis and Evaluation of Tillage on an Alfisol in a Semi-arid Tropical Region of India by : M. C. Klaij
Download or read book Analysis and Evaluation of Tillage on an Alfisol in a Semi-arid Tropical Region of India written by M. C. Klaij and published by . This book was released on 1983 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a Summary in Dutch.
Download or read book Fertilizer Abstracts written by and published by . This book was released on 1981 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Soils of Sri Lanka by : Ranjith B. Mapa
Download or read book The Soils of Sri Lanka written by Ranjith B. Mapa and published by Springer Nature. This book was released on 2020-05-16 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a comprehensive and up-to-date overview of the soils of Sri Lanka. Including sections on the soil research history, climate, geology, geomorphology, major soil types, soil maps, soil properties, soil classification, soil fertility, land use and vegetation, soil management, soils and humans, soils and industry, and future soil issues, the book summarizes the current state of knowledge in a concise and highly reader-friendly way.
Book Synopsis Characterization and Availability of Phosphorus in Sodic Soils by : Vijay Kumar Yadav
Download or read book Characterization and Availability of Phosphorus in Sodic Soils written by Vijay Kumar Yadav and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of the Aluminum-bound Fraction of Soil Phosphorus by : Hari Lal Singh Tandon
Download or read book Characterization of the Aluminum-bound Fraction of Soil Phosphorus written by Hari Lal Singh Tandon and published by . This book was released on 1968 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Phosphorus in Solutions from Temperate Soils by : María Dolores Ron Vaz
Download or read book Characterization of Phosphorus in Solutions from Temperate Soils written by María Dolores Ron Vaz and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies in the Characterization of Phosphorus Movement on Sandy Soils by : Lawrence Edward Johannes
Download or read book Studies in the Characterization of Phosphorus Movement on Sandy Soils written by Lawrence Edward Johannes and published by . This book was released on 1976 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Available and Inorganic Forms of Phosphorus in Selected Alfisols and Mollisols by : Bhojraj Tembhare
Download or read book Available and Inorganic Forms of Phosphorus in Selected Alfisols and Mollisols written by Bhojraj Tembhare and published by . This book was released on 1973 with total page 530 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization of Phosphorus in Selected Soil Series of Karnataka and Response of Rice to Applied Phosphorus by : MALLIKARJUNA G
Download or read book Characterization of Phosphorus in Selected Soil Series of Karnataka and Response of Rice to Applied Phosphorus written by MALLIKARJUNA G and published by . This book was released on 2001 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :International Rice Research Institute Publisher :Int. Rice Res. Inst. ISBN 13 :9711041391 Total Pages :569 pages Book Rating :4.7/5 (11 download)
Book Synopsis Wetland Soils by : International Rice Research Institute
Download or read book Wetland Soils written by International Rice Research Institute and published by Int. Rice Res. Inst.. This book was released on 1985 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Workshop produced recommendations for future research and actions to make the goal of greater crop production from wetland soils a reality.
Book Synopsis Food Security in Nutrient-Stressed Environments: Exploiting Plants’ Genetic Capabilities by : J.J. Adu-Gyamfi
Download or read book Food Security in Nutrient-Stressed Environments: Exploiting Plants’ Genetic Capabilities written by J.J. Adu-Gyamfi and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultimate success in exploiting the genetic capabilities of plants to grow in nutrient-stressed environments of the semi-arid tropics (SAT) requires a holistic view of food systems to ensure that genetic selections for improved yields on nutrient-poor soils will actually be adopted by farmers. This book sets out to address the important issue of how physiological mechanisms of nutrient uptake can best be combined with genetic options to improve the adaptation of crops to low-nutrient availability, thereby enhancing productivity of nutrient poor soils in the semi-arid tropics. The book examines (i) the sustainability of breeding for low-nutrient environments from the viewpoint of three interrelated disciplines; physiology, breeding, and socio-economics, (ii) candidate mechanisms and physiological traits to enhance uptake and utilization efficiencies, (iii) genetic approaches for manipulation of crop plants to enhance root exudation and access nutrients in the rhizosphere, and (iv) field practices and farmers' preferences for crop varieties grown in low-nutrient environments. Finally, the role of modelling in improving nutrient efficiency in cropping systems, recommendations for future research needs and strategies were highlighted. Attended by 50 international participants, this book is the outcome of the workshop held at ICRISAT-India during 27-30 September 1999 to mark the culmination of the Government of Japan/ICRISAT Project.
