Abstract

Nutrient Reduction in the Initial Growth of Caatinga Tree Species

Highlights

  • AND OBJECTIVESIn the Brazilian semi-arid region, where the Caatinga biome is predominant, firewood and charcoal represent important energy sources for both home and industrial use, especially for bakeries, soap shops, and potteries, which has contributed to the indiscriminate removal of native species and the increasing pressure on the remaining floristic lining of this biome (Sousa Neto et al, 2017)

  • This study aimed to evaluate the influence of nutrient omission on the growth and phytomass production of three tree species native to the Caatinga biome cultivated in degraded Chromic Luvisol samples, under greenhouse conditions

  • The results revealed that Fe and Zn supply was essential for the initial establishment of M. urundeuva and A. cearensis in Chromic Luvisols

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Summary

Introduction

AND OBJECTIVESIn the Brazilian semi-arid region, where the Caatinga biome is predominant, firewood and charcoal represent important energy sources for both home and industrial use, especially for bakeries, soap shops, and potteries, which has contributed to the indiscriminate removal of native species and the increasing pressure on the remaining floristic lining of this biome (Sousa Neto et al, 2017). Martins et al (2019) state that the intense degradation of the Caatinga drastically reduces plant biomass production and increases direct soil exposure, resulting in reduced abundance and diversity of species and changes in soil fertility, increasing soil erosion. One way to conduct this study is to use soil samples from the degraded environment and verify the isolated effects of nutrient omission in this sample and the same soil with fertilization on the initial growth of native species In this regard, Chromic Luvisols are one of the most representative soil classes in the Caatinga biome, usually showing a high concentration of exchangeable bases but with severe limitations regarding the levels of organic matter, nitrogen, sulfur, and phosphorus (Naylor et al, 2020; Ramirez & Corona, 2020)

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