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Proposition of Critical Levels of Nutrients in Citrus Leaves, Grown in a Subtropical Climate, for Fresh Market Fruit Production by Krug, Amanda Veridiana (author);Papalia, Daniéle Gonçalves (author);Marques, Ana Luiza de Lima (author);Hindersmann, Jacson (author);Soares, Vanessa Marques (author);Grando, Douglas Luiz (author);Moura-Bueno, Jean Michel (author);Trapp, Talita (author);Rozane, Danilo Eduardo (author);Natale, William (author);Brunetto, Gustavo (author) is a Agricultural and Biological Sciences article available to read on EtoBox.

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Critical levels (CL) and sufficiency ranges (SR) of nutrients in citrus leaves for fruit production for fresh market consumption may help in defining the real need for fertilizer application in orchards, such as those located in tropical and subtropical soils, which have low natural fertility. The study aimed to establish and compare the nutritional patterns obtained by the Composition Nutritional Diagnosis method (CND) in citrus grown for consumption for fresh, in a subtropical climate and then generate CL and SR in leaves. A database was used with fruit production and leaf nutrient contents obtained in the 2016/17, 2017/18, 2019/20 and 2020/21 harvests in non-irrigated commercial orange and tangerine orchards. The multivariate CND calculation method was used. The CND method was effective in diagnosing the nutritional status of citrus, regarding the concentration of the nutrients N, P, K, Ca, Mg, S, Cu, Fe, Mn, Zn and B in deficient, adequate and excessive concentrations. The CL calculated were 18, 1.2, 9.0, 25, 2.8 and 3.0 g kg−1 of N, P, K, Ca, Mg and S, respectively, and 117, 45, 97, 66 and 19 mg kg−1 of B, Cu, Fe, Mn and Zn, respectively. The existing recommendation in the reg

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Author

Krug, Amanda Veridiana (author);Papalia, Daniéle Gonçalves (author);Marques, Ana Luiza de Lima (author);Hindersmann, Jacson (author);Soares, Vanessa Marques (author);Grando, Douglas Luiz (author);Moura-Bueno, Jean Michel (author);Trapp, Talita (author);Rozane, Danilo Eduardo (author);Natale, William (author);Brunetto, Gustavo (author)

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Agricultural and Biological Sciences (Life Sciences)