Effect of Organic and Synthetic Fertilizers on the Crop Yield and Macronutrients Contents in Soil and Pepper |
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| Authors: | Raúl Ortega Isabel Miralles David Erik Meca Juan Carlos Gázquez Miguel Ángel Domene |
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| Affiliation: | 1. Departament of Biology and Geology, Andalusian Center for Evaluation and Monitoring of Global Change (CAESCG), University of Almería, Almería, Spainrortega@ual.es;3. Earth and Life Institute, Georges Lema?tre Center for Earth and Climate Research, Catholic University of Louvain-la-Neuve, Louvain-la-Neuve, Belgium;4. Desertification and Geo-ecology, Arid Zones Experimental Station, CSIC, Almería, Spain;5. Health and Nutrition, Experimental Station of Cajamar Foundation, Almería, Spain |
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| Abstract: | Nowadays farmers are interested in moving to organic cultivation. The purpose of this experiment was to compare two organic, with or without effective microorganisms (EM), and one conventional greenhouse pepper cropping systems. We focused on the study of the macronutrients nitrogen, phosphorus, and potassium (N, P, K) concentrations in leaves plants, soil, and soil solution during the full production cycle to detect any plant nutrient deficiencies and differences in crop yield for the three different treatments. Foliar analyses showed good concentrations of nutrients with conventional treatment, but P was low with organic ones. However, P content in soil was high, because this element is easily precipitated in carbonated soil. Pepper yield was higher in conventional treatment and no differences in productivity were found between the two organic treatments. The role of EM was not clear on the development of plants and fruits; however it seems to influence the N mineralization in organic treatments. |
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| Keywords: | Greenhouse cropping systems macronutrients microorganism facilitation |
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