Author: Roscoe EllisPublisher:
ISBN:
Category : Montmorillonite
Languages : en
Pages : 168
Book Description
Rock Phosphate Availability as Influenced by Soil PH
Author: Roscoe EllisPublisher:
ISBN:
Category : Montmorillonite
Languages : en
Pages : 168
Book Description
Availability of Phosphorus in Rock Phosphate as Influenced by Soil PH and Mixing with Superphosphate
Author: David Lawrence AshbyPublisher:
ISBN:
Category : Phosphates
Languages : en
Pages : 182
Book Description
Influence of Rock Phosphate on Available Phosphorus as Measured by Plant Uptake and Soil Extractants
Author: José EspinosaPublisher: INIAP Archivo Historico
ISBN:
Category : Corn
Languages : en
Pages : 152
Book Description
ABSTRACT INFLUENCE OF ROCK PHOSPHATE ON AVAILABLE PHOSPHORUS AS MEASURED BY PLANT UPTAKE AND SOIL EXTRACTANTS
Author: JOSE ESPINOSAPublisher: INIAP Archivo Historico
ISBN:
Category :
Languages : en
Pages : 72
Book Description
Availability of Phosphorus in Rock Phosphate as Influenced by Soil Reaction
Author: Warner Hale AnthonyInfluence of PH, Moisture Content, and Storage on Phosphate Availability in Almena Silt Loam
Author: Teh Ming YuEffect of Sulfur and Manure on Availability of Rock Phosphate in Soil
Author: Percy Edgar BrownPublisher:
ISBN:
Category : Fertilizers
Languages : en
Pages : 40
Book Description
Adsorption of Inorganics at Solid-liquid Interfaces
Author: Marc A. AndersonPublisher: Ann Arbor Science Publishers
ISBN:
Category : Science
Languages : en
Pages : 376
Book Description
Sulfur Oxidation Influence on Rock Phosphate Solubilization in Soil
Author: Osni Correa de SouzaPublisher:
ISBN:
Category : Soils
Languages : en
Pages : 86
Book Description
The low solubility of many rock phosphate (RP) around the world is the main cause of their ineffectiveness when applied to soil as a source of P for crops. The low solubility decreases their value as P fertilizers and prevents their widespread use, especially for high P demanding crops. One method proposed to enhance RP solubility is to add sulfur (S) as an amendment. The oxidation of S to H2SO4 in the soil results in dissolution of the applied RP. This study tested three Brazilian RP sources (Araxa, Catalao, and Patos de Minas) mixed with S at a ratio of 5:1 (RP:S). The application of the RP-S mixtures proved to be a promising alternative method for increasing RP solubility and thus their effectiveness as P sources. The soil pH decreased proportionally to increasing rates of RP-S application. The NaHCO3 extractable soil P increased as a consequence of increased soil acidefication. The ryegrass growth, P uptake, plant P concentration and P recovered from RP sources were enhanced only when S was mixed with the RPs. On the other hand, when RP sources were applied directly without S, the available soil P as measured by NaHCO3 extraction was depleted with time regardless of source or rate of RP. The inefficiency of the directly applied RP sources to supply adequate P was evidenced by less plant growth than applied with S. Also, in addition to this inadequate supply of for plant assimilation, the directly applied RP sources failed to develop a residual reserve of available P in the soil, even at very high application ...
Legacy Phosphorus in Agriculture: Role of Past Management and Perspectives for the Future
Author: Luke GatiboniPublisher: Frontiers Media SA
ISBN: 2889663574
Category : Science
Languages : en
Pages : 140
Book Description