Diagnose of soil fertility properties of a representative agricultural mesoregion in the Cerrado biome as affected by land use.

In Brazil, most of cereal production is concentrated in the Cerrado which is characterized by poor soils. Thus, the soil fertility management is important for suitable use of Cerrado's soils. After 40 years of increasing use of Cerrado for agricultural purposes, this work aimed to evaluate the soil fertility of a representative area known as Triângulo Mineiro and Alto Paranaíba (TMAP) mesoregion.

Chemical and technological attributes of sugarcane as functions of organomineral fertilizer based on filter cake or sewage sludge as organic matter sources.

Sugarcane is one of the main alternative sources of biomass for the biofuel sector, and its large-scale production has considerable environmental impact. Organomineral fertilizers formulated with potential environmental contaminants, such as filter cake and sewage sludge, positively influence plant growth and development. The objective of the present study was to evaluate the chemical and physical characteristics of sugarcane fertilized with pelletized organomineral fertilizers based on filter cake or sewage sludge.

Decomposition of leaf litter in the Brazilian savanna on limestone and sandstone Neosols.

Litter decomposition in the soil is an important stage of the nutrient cycling process that interferes with functioning of terrestrial ecosystems. Soil fertility and litter nutritional quality are fundamental factors that affect decomposition efficiency of plant residues. We evaluated decomposition in two areas of 'cerrado sensu stricto', each with a type of Neosol - limestone (eutrophic) and sandstone (dystrophic).

Si-Accumulation In Glandular Trichomes Increases Artemisinin Concentration, but Does Not Interfere In the Impairment of Growth.

is used as a source of artemisinin, a potent therapeutic agent used for the treatment of infectious diseases, chiefly malaria. However, the low concentration (from 0.01 to 1.