RT info:eu-repo/semantics/article
T1 Dried pig manure from a cogeneration plant as a fertilizer for nitrate vulnerable zones
A1 Sánchez Báscones, Mercedes
A1 Antolín Rodríguez, Juan Manuel
A1 Bravo Sánchez, Carmen Teresa
A1 Martín Gil, Jesús
A1 Martín Ramos, Pablo
K1 Barley
K1 Cebada
K1 Pig manure
K1 Estiércol porcino
K1 Fertilization
K1 Fertilización
K1 3103 Agronomía
AB Nitrate vulnerable zones (NVZs) are areas considered to be at high risk of water pollution due to an excess of nitrates and, according to European regulations, codes of good agricultural practice are to be implemented by farmers, such as reducing doses of the applied fertilizers, or the use of fertilizers that minimize nitrate leaching. In this work, the influence of organic fertilization with dried pig manure (DPM) as compared to mineral fertilization with ammonium sulfate nitrate with 3,4-dimethylpyrazole phosphate nitrification inhibitor was studied in a barley crop planted in a NVZ in Fompedraza (Valladolid, Spain). Organic and mineral fertilizers were applied at different rates (85, 133 and 170 kg N·ha−1·year−1 vs. 90 and 108 kg N·ha−1·year−1, respectively) over a three-year period, in a randomized complete block design with six treatments and four blocks. DPM-based fertilization resulted in a 65% increase in crop yield as compared to the control soil, reaching 1800 kg·ha−1 for an application rate of 85 kg N·ha−1·year−1. Higher DPM rates were found to increase the electrical conductivity and assimilable phosphorus, potassium, magnesium and organic matter contents, but did not lead to yield enhancements. Final nitrate and ammonium concentrations were lower than 10 mg·kg−1 and 20 mg·kg−1, respectively, and no increase in soil salinity or heavy metal pollution was observed. DPM fertilization should be supplemented with small doses of inorganic fertilizers to obtain crop yields similar to those attained with mineral fertilization.
PB MDPI
SN 2073-4395
YR 2019
FD 2019
LK https://uvadoc.uva.es/handle/10324/56440
UL https://uvadoc.uva.es/handle/10324/56440
LA eng
NO Agronomy, 2019, vol. 9, n. 2, p. 46
NO Producción Científica
DS UVaDOC
RD 17-jul-2024