Preprint Article Version 1 This version not peer reviewed

Critical Nutrient Concentrations and DRIS Norms for Pinus patula

Version 1 : Received: 29 December 2017 / Approved: 2 January 2018 / Online: 2 January 2018 (10:25:46 CET)

How to cite: Sánchez-Parada, A.; López-López, M.Á.; Gómez-Guerrero, A.; Pérez-Suárez, M. Critical Nutrient Concentrations and DRIS Norms for Pinus patula. Preprints 2018, 2018010011 (doi: 10.20944/preprints201801.0011.v1). Sánchez-Parada, A.; López-López, M.Á.; Gómez-Guerrero, A.; Pérez-Suárez, M. Critical Nutrient Concentrations and DRIS Norms for Pinus patula. Preprints 2018, 2018010011 (doi: 10.20944/preprints201801.0011.v1).

Abstract

Pinus patula is one of the most planted wood conifer species worldwide; however, no foliar nutrient standards exist for this species up to date. The objective of the present study was to generate and verify two sets of foliar nutrient standards for nearly ten-year-old P. patula trees: critical nutrient concentrations and DRIS norms. Nutrients studied were N, P, K, Ca, Mg, Fe, Cu, Zn, Mn, and B. The reference standards were verified experimentally by installing two fertilization trials; one of them located in Huayacocotla, state of Veracruz and the other one in Aquixtla, state of Puebla, Mexico. Nutrient status of each fertilization trial was correctly predicted by critical nutrient values and DRIS as well. Both standards were able to detect the secondary growth-limiting nutrient deficiency in the Huayacocotla trial, where the primary limitation for growth was scarcity of solar radiation within tree crowns. The limiting nutrient in both experimental trials was K.

Subject Areas

plant nutrition; chemical fertilization; nutrient diagnosis; forest plantation; foliar nutrients

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