Fertilidade do solo e estado nutricional do cafeeiro cultivado em atmosfera enriquecida com CO2

摘要: The objective of this work was to evaluate the effects atmospheric CO 2 levels on soil chemical attributes, in rows (coffee crop) and between ( Urochloa decumbens ), macronutrient contents coffee leaves. A randomized complete block design used, a split‑plot, with six replicates. treatments consisted two atmosphere, 390 550  μ mol ‑1 . Soil samples were collected 2013 2014, at layers 0–5.0, 5.0–10, 10–20 20–40 cm, 0–10, respectively. pH, Ca 2+ , Mg available K, P, S contents, base saturation, organic matter evaluated. In reduction P observed as air increased. K reduced leaf increased under grown atmosphere enriched content is more reduced, which indicates need an adequate replacement nutrient.