Download or read book Effect of Organic Materials on Phosphorus Sorption and Availability to Phaseolus Vulgaris in an Andic Eutropept in Costa Rica written by Karen Langholz Lowell and published by . This book was released on 2000 with total page 494 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 830 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Agroforestry Forum written by and published by Bib. Orton IICA / CATIE. This book was released on with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effect of Organic Amendments on Phosphorus Sorption and Availability in an Acid Soil written by Cassandra Schefe and published by . This book was released on 2006 with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Organic and Inorganic Soil Amendments of Phosphorus Sorption written by Faustin Iyamuremye and published by . This book was released on 1994 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Sorption in Relation to Time Temperature and Plant Availability written by Hassan Suliman Ibrahim and published by . This book was released on 1981 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Organics Amended Rock Phosphate Phosphate Solubilizers on French Bean Phaseolus Vulgaris L written by MANJUNATH M. N and published by . This book was released on 2002 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Sorption and Extractability in Andic Soil Incubated with Plant Residues of Variable P Content written by Andre H. Bumaya and published by . This book was released on 1987 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Processes and Factors Affecting Phosphorus Sorption in Soils written by Samuel Asomaning and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The subject of this chapter is soil chemistry. The chapter is entitled Processes and Factors Affecting Phosphorus (P) Adsorption in Soils. The chapter aims to give an overview of the major mechanisms responsible for phosphate sorption (i.e., adsorption and absorption of phosphate) in soils, particularly of acid soils. According to studies conducted by some soil scientists, the major soil factors affecting P sorption are time, soil pH, soil organic matter, and iron and aluminium oxides of soils. Studies conducted indicated that adsorption of the P increases as the P ages in the soil. Soil pH affects phosphate adsorption but the effect is limited for adsorption by soils in the pH range of 4,Äì8. Organic matter may affect P adsorption in two ways: indirectly by inhibiting iron oxide crystallisation and directly by competing for adsorption sites. On per mole basis, oxalate extractable aluminium oxides adsorb nearly twice as much P as oxalate extractable iron oxides due to poorer crystallinity (higher specific area) of the aluminium oxides compared to the iron oxides and also to a higher charge of the former. The chapter also highlights the pedotransfer functions (PTFs) of Borggaard, which can be used to calculate for the P adsorption in highly weathered acid soils.

Download or read book Microbiology of Tropical Soils and Plant Productivity written by Y.R. Dommergues and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 329 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is an established fact that we must continually increase and improve agricultural production if we are to meet even the minimum requirements of a growing popu lation for food, shelter, and fuel. In recent years, the introduction of new plant varieties and the extensive use of fertilizers have effectively increased crop yields, but intensifying agricultural methods has often led to depleting soil fertility. Two examples of the harmful consequences of intensive farming practices are the loss of up to 2.5 cm of topsoil every 15 years in the United States through erosion and the alarming rise in environmental pollution through widespread use of pesticides. Countless other processes affecting the activity of soil micro flora and the inter actions between microorganisms and plants may pose an equal danger to soil equilibrium, but their potential hazards are often overlooked because of an insufficient understanding of soil microbiology on the part of scientists. In the first published study of its kind, the authors of this book have attempted to address major aspects of the microbial activity of soil in the tropics. Tropical conditions serve as an ideal context for a discussion of soil microbiology, since biological processes in the soil are particularly active in tropical environments in comparison to other settings and in relation to physical and chemical processes.