Relação entre matéria orgânica e textura de solos sob cultivo de algodão e cana-de-açúcar, no estado de São Paulo
Year: 1982
Type: article
Abstract: In the plow layer (0-20cm) of well drained low activity clay soils (mostly Oxisols and Ultisols) under "Cwa" tropical climate and long term cropped with cotton (42 sites) or sugarcane (45 sites), organic matter (y) was found to be similarly and highly related to soil texture.Best relations were found with clay (<2m) plus silt (2-20m) contents (x); (y = 0.773 + 0.0325x; r = 0.810***).A classification of soil organic matter contents, into low, medium and high levels, with different values for four major textural Classes is suggested.Ranges of medium levels of organic matter suggested were: 0.6 to 1.2% for sand and sandy loam; 1.0 to 1.8% for sandy loam and sandy clay loam; 1.5 to 2.8% for sandy clay and clay; 2.4 to 3.8% for heavy clay.
Source: Bragantia
Language: Portuguese
Subfield: Soil Science
Domain: Life Sciences
SDG: Zero hunger
Open Access status: diamond
OpenAlex ID: W2076720060