Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - A novel phosphorus biofertilization strategy using cattle manure treated with phytase-nanoclay complexes
AU - Menezes-Blackburn, Daniel
AU - Jorquera, Milko A.
AU - Gianfreda, Liliana
AU - Greiner, Ralf
AU - de la Luz Mora, Maria
PY - 2014/5
Y1 - 2014/5
N2 - The aim of this work was to evaluate the treatment of cattle manure with phytases stabilized in allophanic nanoclays as a potential novel phosphorus (P) biofertilization technology for crops grown in volcanic soils (Andisol). Furthermore, because the optimal pH for commercial phytase catalysis does not match the natural pH of manure, a complementary experiment was set up to evaluate the effect of manure inoculation with an alkaline phytase-producing bacterium. Finally, phytase-treated soil, manure, and soil-manure mixtures were evaluated for their P-supplying capacity to wheat plants grown under greenhouse conditions. Treating cattle manure with phytases stabilized in nanoclays resulted in a significant (P a parts per thousand currency signaEuro parts per thousand 0.05) increase of inorganic P in soil extracts (NaOH-EDTA and Olsen). The use of phytase-treated cattle manure increased dry weights by 10 % and the P concentration by 39 % in wheat plants grown under greenhouse conditions, which is equivalent to a P fertilizer rate of about 150 kg of P per hectare. The inoculation of cattle manure with beta-propeller phytase-producing bacteria led to an similar to 10 % increase in inorganic P in the manure extracts. However, applying inoculated manure to soil did not significantly increase wheat yield or P acquisition responses. Our results suggest that the novel approach of incubating cattle manure with phytases stabilized in nanoclay enhances the organic P cycling and P nutrition of plants grown in P-deficient soils.
AB - The aim of this work was to evaluate the treatment of cattle manure with phytases stabilized in allophanic nanoclays as a potential novel phosphorus (P) biofertilization technology for crops grown in volcanic soils (Andisol). Furthermore, because the optimal pH for commercial phytase catalysis does not match the natural pH of manure, a complementary experiment was set up to evaluate the effect of manure inoculation with an alkaline phytase-producing bacterium. Finally, phytase-treated soil, manure, and soil-manure mixtures were evaluated for their P-supplying capacity to wheat plants grown under greenhouse conditions. Treating cattle manure with phytases stabilized in nanoclays resulted in a significant (P a parts per thousand currency signaEuro parts per thousand 0.05) increase of inorganic P in soil extracts (NaOH-EDTA and Olsen). The use of phytase-treated cattle manure increased dry weights by 10 % and the P concentration by 39 % in wheat plants grown under greenhouse conditions, which is equivalent to a P fertilizer rate of about 150 kg of P per hectare. The inoculation of cattle manure with beta-propeller phytase-producing bacteria led to an similar to 10 % increase in inorganic P in the manure extracts. However, applying inoculated manure to soil did not significantly increase wheat yield or P acquisition responses. Our results suggest that the novel approach of incubating cattle manure with phytases stabilized in nanoclay enhances the organic P cycling and P nutrition of plants grown in P-deficient soils.
KW - Phytase
KW - Phytate
KW - Phosphorus
KW - Organic phosphorus
KW - Biofertilization
KW - Volcanic soils
KW - Cattle manure
KW - Wheat
KW - ORGANIC PHOSPHORUS
KW - PLANT-GROWTH
KW - ENZYMATIC-HYDROLYSIS
KW - ASPERGILLUS-NIGER
KW - ESCHERICHIA-COLI
KW - ACID-PHOSPHATASE
KW - VOLCANIC SOILS
KW - RHIZOSPHERE
KW - BACTERIA
KW - BIOAVAILABILITY
U2 - 10.1007/s00374-013-0872-9
DO - 10.1007/s00374-013-0872-9
M3 - Journal article
VL - 50
SP - 583
EP - 592
JO - Biology and Fertility of Soils
JF - Biology and Fertility of Soils
SN - 0178-2762
IS - 4
ER -