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

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.
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https://hal.inrae.fr/hal-03276157
Contributor : Dominique Fournier <>
Submitted on : Thursday, July 1, 2021 - 5:46:49 PM
Last modification on : Monday, August 30, 2021 - 11:16:03 AM

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Y. Wang, J. Huang, H. Huan, D. Huang, G. Liu, et al.. Phosphate fertilizer addition increases the movement distance and content of the acid soil inorganic phosphorus fractions at green manure microsites. Agrochimica, 2020, pp.397-412. ⟨10.12871/00021857202046⟩. ⟨hal-03276157⟩

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