Compositional Nutrient Diagnosis in Maize Grown in a Calcareous Soil |
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| Authors: | Rafael Magallanes-Quintanar Ricardo David Valdez-Cepeda Emilio Olivares-Sáenz Oscar Pérez-Veyna José Luis García-Hernández José Dimas López-Martínez |
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| Institution: | 1. Universidad Autónoma de Zacatecas, Unidad Académica de Medicina Veterinaria y Zootecnia, Programa de Doctorado en Ciencias Pecuarias , Zacatecas, Zac., México;2. Universidad Autónoma Chapingo, Centro Regional Universitario Centro-Norte, MCDRR , Zacatecas, Zac., México;3. Universidad Autónoma de Zacatecas, Unidad Académica de Matemáticas , Zacatecas, Zac., México;4. Facultad de Agronomía , Universidad Autónoma de Nuevo León , Marín, Nuevo León, México;5. Universidad Autónoma de Zacatecas, Programa de Doctorado en Estudios del Desarrollo , Zacatecas, Zac., México;6. Centro de Investigaciones Biológicas del Noroeste , La Paz, BCS, México;7. Facultad de Agricultura y Zootecnia, División de ‘Estudios de Posgrado , Universidad Juárez del Estado de Durango , Venecia, Durango, México |
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| Abstract: | ABSTRACT Preliminary compositional nutrient diagnosis (CND) norms for maize (Zea mays L.) were developed from a small database as means and standard deviations of row-centered log ratios V X of five nutrients nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), and magnesium (Mg)] and a filling value R, which comprised all nutrients not chemically analyzed and quantified in 72 leaves of hybrid ‘Pioneer 3044.’ Norms were derived from maize grain yields higher than 7.7 t ha?1. Principal-component analysis performed using CND nutrient indexes allowed us to identify an antagonism between N and Mg explained by the calcareous nature of the soil and the relevant N fertilization with ammonium (NH4 +), and a positive interaction between P and K, and P-Ca and K-Ca antagonisms. Maize plants tended to take up lower amounts of N and K and higher amount of Mg in our calcareous soil than the concentrations of these nutrients reported to be optimum. |
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| Keywords: | nutrient norms nutrient interactions grain yields N-Mg antagonism DRIS CND |
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