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Composição bioquímica e decomposição da parte aérea e raízes de culturas comerciais e plantas de cobertura de solo
(Universidade Federal de Santa Maria, 2010-02-26)
Crop residues (CR) composed by shoots and roots of plants are the main source of C for the agricultural soils. During the decomposition of these CR in the soil, part of C is evolved as CO2 and nutrients are mineralized, ...
Adubação nitrogenada à taxa variada com o N-Sensor nas culturas do milho e trigo
(Universidade Federal de Santa Maria, 2010-03-03)
Most tropical and subtropical soils present insufficient availability of nitrogen (N) to meet the demand of maize and wheat in order to obtain high yields. The N in plants can be evaluated through the use of sensors of ...
Produção de grãos, matéria seca e acúmulo de nutrientes em culturas submetidas à adubação orgânica e mineral
(Universidade Federal de Santa Maria, 2010-04-29)
In Brazil, one of the main activities on small farms is the creation of small animals. The waste produced in this activity can be used as an alternative fertilizer because it contains a number of chemicals readily available ...