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Ingeniería agrícola y biosistemas
versión On-line ISSN 2007-4026versión impresa ISSN 2007-3925
Resumen
FLORES-SANCHEZ, Diego; NAVARRO-GARZA, Hermilio y PEREZ-OLVERA, María Antonia. Nutrient balance in maize cropping systems and challenges for their sustainability. Ing. agric. biosist. [online]. 2019, vol.11, n.2, pp.97-109. Epub 24-Ago-2020. ISSN 2007-4026. https://doi.org/10.5154/r.inagbi.2017.11.017.
Introduction:
Nutrition management in the maize crop in Guanajuato, Mexico, is based on mineral fertilization, with high doses of nitrogen and reduced application of phosphorus and potassium.
Objective:
To diagnose the management of mineral nutrition and residues from the maize cropping system, and identify opportunities for their efficient use.
Methodology:
68 maize farmers from the municipalities of Salvatierra and Valle de Santiago, Guanajuato, were surveyed. Plot soils were sampled, and yield, nutrient concentration and C mineralization were estimated. With the data obtained, graphs of the balance of N, P, K and C were made.
Results:
Nutrition management and biomass production varied among farmers. Currently, P and K are not limiting factors, unlike N, since the soil only contributes 11 % of the total available nitrogen. Residue management showed that there is an imbalance between soil C mineralization and the incorporation of residues.
Study limitations:
The analysis focused on only one agricultural cycle.
Originality:
The focus of the study, including the graphical analysis, is scarcely applied in the region’s maize farming systems.
Conclusions:
An integral vision is required for the management of organo-mineral nutrition and residues to contribute to their efficient and sustainable use.
Palabras llave : nitrogen; phosphorus; potassium; carbon; residues; nutrient use efficiency; Guanajuato.