Abstract

LARA-CAPISTRAN, Liliana et al. Agronomic response of Phaseolus vulgaris to biofertilization in the field. Rev. Mex. Cienc. Agríc [online]. 2019, vol.10, n.5, pp.1035-1046.  Epub Mar 03, 2020. ISSN 2007-0934.  https://doi.org/10.29312/remexca.v10i5.936.

The use of beneficial microorganisms is a viable alternative to incorporate into legumes to improve fertility and increase nitrogen fixation in the soil. In this work the application of arbuscular mycorrhizal fungi (AMF), Rhizobium etli (Re) and a reduced dose of inorganic fertilizer in the production and quality of bean (Phaseolus vulgaris L.) cv. ‘Negro Michigan’ under field conditions. The work was carried out in the ‘La Bandera’ Experimental Field located in the municipality of Actopan, Veracruz, during the spring summer 2016 cycle. An experimental randomized block design with eight treatments was used [T1: (control, T) , T2: (fertilized, F), T3: (inoculated with AMF), T4: (inoculated with Re), T5: (inoculated with AMF+Re), T6: (inoculated with AMF+50%F), T7: (inoculated with Re+50%F) and T8: (inoculated with AMF+Re+50%F)], each treatment with three blocks and 500 plants in each. Plant height, stem diameter, number of leaves, flowers, pods and nodules, weight of grains, seed quality variables, total protein content and percentage of root colonization were evaluated. An analysis of variance and Fisher’s LSD test with a significance level of 5% were used. The results showed significant differences between treatments (p≤ 0.05) for the registered variables, with AMF+Re+50%F being the treatment where not only was the quality of the bean grain improved, but the use and fertilization costs would be reduced in favor of the producers’ economy.

Keywords : Rhizobium etli; arbuscular mycorrhizal fungi; protein.

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