Abstract— In recent years, the avocado has become an important fruit species in Mexico, where it is distributed in six states, among which there is the state of Morelos. For the study, two agrohabitats with eight-year-old avocado orchards located in Tepoztlán, Morelos were selected. Soil fertility of the orchards was evaluated, as well as the quality of irrigation water, and the nutritional state of the leaves; sufficiency ranges were calculated, and the Deviation from Optimum Percentage method was used to interpret the results. Soils and the quality of irrigation water showed different chemical characteristics that had an influence on nutrient concentration in avocado leaves. The Deviation from Optimum Percentage (DOP) method allowed us to identify requirements of N, Zn, Mn, Fe and B in agrohabitat one, and deficiencies of P, K, Ca, S, Zn and Mn in agrohabitat two, which must be taken into account to implement a fertilization program in the studied orchards.
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