Download or read book Availability of Inorganic Soil Phosphate as Measured by Plant Uptake and Adsorption by Anion Exchange Resin written by Paul Gerhardt Orth and published by . This book was released on 1959 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ABSTRACT INFLUENCE OF ROCK PHOSPHATE ON AVAILABLE PHOSPHORUS AS MEASURED BY PLANT UPTAKE AND SOIL EXTRACTANTS written by JOSE ESPINOSA and published by INIAP Archivo Historico. This book was released on with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphorus Requirements in Soils Amended with Organic Materials written by Ronaldo Severiano Berton and published by . This book was released on 1987 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: The addition of organic residues to the soil may modify the amounts of plant available phosphorus (P) found in this ssytem. These studies were undertaken to evaluate the suitability of the sorption isotherm technique for estimating the amounts of inorganic P required for optimum plant growth, the correlation of P availability with the amount of P extracted by three chemical methods, and with the activity of two phosphatase enzymes, when soils were amended with organic materials. Acid phosphatase and phosphodiesterase activities were also compared with the P availability to plants. Soil phosphodiesterase activity correlated better with corn yield and plant uptake than acid phosphatase activity. The correlation of phosphodiesterase activity with microbial activity might be used to indicate the contribution of the soil organic P pool in the P supply to the plant.

Download or read book A Resin Incubation Technique to Assess Soil Phosphorus Release written by Yanping Liu and published by . This book was released on 1995 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Characterization of the Phosphorus Supplying Capacity of Soils by Desorption Q I Relationships and Kinetics written by Klaus Peter Raven and published by . This book was released on 1992 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Rate of Depletion of Available Residual Phosphorus in Relation to Soil Properties written by Robert Mitchell Lippert and published by . This book was released on 1984 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Dissertation Abstracts written by and published by . This book was released on 1960-04 with total page 1112 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 Fertilizer Abstracts written by and published by . This book was released on 1970 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Study of the Inorganic Soil Phosphate by the Use of Mixed Cation anion Exchange Resin Systems and Its Relation to the Isotopically Exchangeable Phosphate in the Soil written by L. V. Vaidyanathan and published by . This book was released on 1962 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphate Sorption and Desorption Characteristics in Soil Systems Determined with a Polynuclear Al saturated Cation Exchange Resin written by Yingming Liang and published by . This book was released on 1988 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Relationships of Inorganic Soil Phosphates to Soil Genesis Soil Tests and Plant Uptake of Phosphorus written by Gary W. Petersen and published by . This book was released on 1963 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Reaction of Rock Phosphorus in Some Brazilian Soils and Their Utilization by Plants written by P. Rosand Cabala and published by . This book was released on 1979 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: In three soil from southern Bahia(Brazil) a local (Patos) rock phosphorus wa compared with monocalcium phosphate and Gafsa and Morocco rock phosphates as a source of P by sorghum and by phosphate soil parameters. The utilization of Patos rock phosphate by two legumes and two grasses with VA mycorrhizal infection and NH4 or NO3 nitrogen nutrition was evaluated and, using soil blocks, pH gradients at different distances from the root plane were determined. Low fertilizer value was recorded for Patos rock phosphate, the effectiness of whic increased with storage time only in a clay soil having high organic matter content, CEC, and high adsorption capacity. In all soils Gafsa and Morocco showed equal or higher effectiveness than monocalcium phosphate. The low availability of Patos in related to its mineralogical composition, to low solubility in 2% citric acid and low amounts of phosphate extracted by anion exchange resin. The highest rate of P immobilization was recorded in a soil having a high content of Al and Fe extracted by dithionite and pyrophosphate, and also goethite and gibbsite as revealed by X-ray examination. The behaviour was note realed by x-ray examination. This behaviour was note related to the amounts of Al and Fe extracted by oxalate, exchangeable e Al or to the adsorption-dsorption properties using o,01M CaCl2 solutions. Phosphate extracted by anion exchange resin showed the best correlation with P uptake by sorghum, E value P soluble in water being second and third best. Poor correlations ...

Download or read book Phosphorus Adsorption Studies with an Acid Aluminous Soil and Aluminum Hydroxide Suspensions written by James Thomas Sims and published by . This book was released on 1981 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Phosphate Availability in the Soil root System written by Jannetje Susanna Geelhoed and published by . This book was released on 1998 with total page 177 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Alley farming an annotated bibliography written by and published by IITA. This book was released on with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Legacy Phosphorus in Agriculture Role of Past Management and Perspectives for the Future written by Luke Gatiboni and published by Frontiers Media SA. This book was released on 2021-01-07 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt: