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Atributos químicos após dezenove aplicações de dejeto líquido de suínos em argissolo sob plantio direto
(Universidade Federal de Santa Maria, 2010-09-27)
The use of pig slurry as a source of nutrients can affect the conditions of acidity and nutrient availability, altering the environment for crop development. The objective of this study was to evaluate changes in chemical ...
Liberação de nitrogênio em diferentes solos e épocas de cultivo sob adubação orgânica
(Universidade Federal de Santa Maria, 2010-04-30)
Organic fertilizers promote improvements in soil properties and are important in providing balanced nutrients to plants. The officials parameters adopted by the Commission of Chemistry and Soil Physics in the States of Rio ...
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 ...