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2 results on '"Ca-associated Pi"'

1. Phosphate fertilizer addition increases the movement distance and content of the acid soil inorganic phosphorus fractions at green manure microsites.

Author

WANG, Y., HUANG, J., HUAN, H., HUANG, D., LIU, G., LESUEUR, D., HONG, J., and DONG, R.

Subjects
GREEN manure crops, PHOSPHATE fertilizers, ACID soils, PHOSPHORUS, MONOCALCIUM phosphate
Abstract

To investigate the movement and content of the acid soil Pi fractions at different distances from the green manure (GM) application site at a GM microsite, an incubation experiment was conducted. Stylosanthes GM (10 or 40 ton/ha) was applied with or without phosphate fertilizer (monocalcium phosphate, MCP) at a concentration of 44 kg/ha P, which was laid on the surface in soil cylinders. The GM/fertilizer and soil were incubated for 14 and 28 d. The results indicated the movement distance and content of the Pi fractions (Al-, Fe-, and Ca-associated Pi as well as occluded P) in the acid soil microsite were significantly increased after the addition of MCP; however, the movement distances of the Pi fractions were all less than 3 mm after incubation for 28 d. This information will improve the efficiency of combined P and GM use and decrease the environmental load due to P pollution caused by GM and phosphate fertilizer. [ABSTRACT FROM AUTHOR]

Published
2020
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2. Phosphate fertilizer addition increases the movement distance and content of the acid soil inorganic phosphorus fractions at green manure microsites

Author

R. Dong, H. Huan, J. Hong, D. Huang, Didier Lesueur, J. Huang, Y. Wang, G. Liu, Hainan University, Chinese Academy of Tropical Agricultural Sciences (CATAS), Deakin University [Burwood], Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), International Center for Tropical Agriculture [Hanoï] (CIAT Asia), International Center for Tropical Agriculture [Colombie] (CIAT), Consultative Group on International Agricultural Research [CGIAR] (CGIAR)-Consultative Group on International Agricultural Research [CGIAR] (CGIAR), Département Performances des systèmes de production et de transformation tropicaux (Cirad-PERSYST), and Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)

Subjects
P33 - Chimie et physique du sol, [SDV.SA]Life Sciences [q-bio]/Agricultural sciences, Pollution, Ca-associated Pi, Fe-associated Pi, media_common.quotation_subject, Al-associated Pi, Soil Science, engineering.material, Fertilisation, Green manure, chemistry.chemical_compound, Animal science, Propriété physicochimique du sol, Incubation, Monocalcium phosphate, media_common, Engrais organique, Efficacité, 2. Zero hunger, biology, Chemistry, P35 - Fertilité du sol, Sol acide, 04 agricultural and veterinary sciences, Microsite, Stylosanthes, Phosphate fertilizer, biology.organism_classification, green manure microsite, occluded P, 040103 agronomy & agriculture, engineering, 0401 agriculture, forestry, and fisheries, Fertilizer, Agronomy and Crop Science, F04 - Fertilisation, Food Science
Abstract

International audience; To investigate the movement and content of the acid soil Pi fractions at different distances from the green manure (GM) application site at a GM microsite, an incubation experiment was conducted. Stylosanthes GM (10 or 40 ton/ha) was applied with or without phosphate fertilizer (monocalcium phosphate, MCP) at a concentration of 44 kg/ha P, which was laid on the surface in soil cylinders. The GM/fertilizer and soil were incubated for 14 and 28 d. The results indicated the movement distance and content of the Pi fractions (Al-, Fe-, and Ca-associated Pi as well as occluded P) in the acid soil microsite were significantly increased after the addition of MCP; however, the movement distances of the Pi fractions were all less than 3 mm after incubation for 28 d. This information will improve the efficiency of combined P and GM use and decrease the environmental load due to P pollution caused by GM and phosphate fertilizer.

Published
2020
Full Text
View/download PDF

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