Abstract

BERNAL-FUNDORA, Andy; CABRERA-RODRIGUEZ, Juan A.; GONZALEZ-CANIZARES, Pedro J.  and  HERNANDEZ-JIMENEZ, Alberto. Increased nutrient supply to plants in vermicompost amended gley soil. cultrop [online]. 2021, vol.42, n.3  Epub Sep 30, 2021. ISSN 1819-4087.

The need to seek alternatives to improve crop nutrition given the low fertility of agricultural soils and the shortage of fertilizers is becoming increasingly important. One of these alternatives is the application of organic fertilizers and inoculation with arbuscular mycorrhizal fungi (AMF). The objective of the present work was to investigate the effect of vermicompost applications and the inoculation of a mycorrhizal biofertilizer on the nutrient supply of a Gley Nodular Ferruginous soil for pearl millet plants (Panicum italicum L.). Two experiments were carried out under mesocosmic conditions at the National Institute of Agricultural Sciences (INCA), four proportions of soil-vermicompost were studied, with and without mycorrhizal inoculation, in a completely randomized design with factorial structure and three repetitions. The height, the dry mass of the aerial biomass and the concentration and quantity of nutrients in plants, the frequency and intensity of colonization and the number of spores in the soil were evaluated. The application of vermicompost increased the availability of soil nutrients and it was reflected in the increase of the concentration and quantity of nutrients in the plants, which led to greater growth and development of these; in the presence of the pearl millet, the vermicompost application decreased the frequency and intensity of mycorrhization, which inhibited.

Keywords : vermicompost; arbuscular mycorrhizae; Glomus; gleysols.

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