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