Legacy phosphorus in Brazilian agriculture and cover crops contribution to enhance this nutrient bioavailability in tropical Oxisols

Rodrigues, Marcos

doi:10.11606/t.11.2018.tde-29062018-091614

Cited by 1 publication

(1 citation statement)

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“…P exists in soils in both inorganic and organic forms. Inorganic P (Pi) is usually composed of primary mineral-P (e.g., apatite), secondary crystalline and amorphous precipitates of Al/Fe, and P absorbed onto clay minerals (e.g., silicate) (Rodrigues et al, 2016). Organic P (Po) comprises orthophosphate monoesters (including inositol phosphates and orthophosphate diesters), organic polyphosphates, and phosphonates (Cui et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Alkaline Phosphomonoesterase-Harboring Microorganisms Mediate Soil Phosphorus Transformation With Stand Age in Chinese Pinus massoniana Plantations

Liang

Li²,

Pan

et al. 2020

Front. Microbiol.

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phoD-harboring microorganisms facilitate mineralization of organic phosphorus (P), while their role in the regulation of soil P turnover under P-limited conditions in Pinus massoniana plantations is poorly understood. The aim of the present study was to investigate the effects of stand age and season on soil P fractions and phoD-harboring microorganism communities in a chronosequence of Chinese P. massoniana plantations including 3, 19, and 58 years. The soil P fractions (i.e., CaCl2-P, citrate-P, enzyme-P, and HCl-P) varied seasonally, with the higher values observed in the rainy season. The concentrations of the fractions were higher in old plantation (OP) soils and lower in young planation (YP) soils in both seasons. The OTU abundances were negatively correlated with total available P concentration, while were positively correlated with alkaline phosphomonoesterase (ALP) activity at 0–10 cm soil depth. The results indicate that phoD-harboring microorganisms have great potential to mineralize organic P under P-poor conditions and highlights those microorganisms are indicators of P bioavailability in P. massoniana plantations.

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Section: Introductionmentioning

confidence: 99%