Swine manure is a good nutrient source, but may have a negative impact on the environment when inadequately used. The aim of this work was to evaluate changes in properties of soils under no-till grain production and long-term swine manure fertilization. Soil samples from three representative soils types (Oxisol, Inceptisol and Leptosol) from Western Santa Catarina, Southern Brazil, were collected under no-tillage cultivation and surface application of swine manure for about 15 years and over 20 years. Samples from areas treated with […]

The objective of this study was to evaluate soil correction in the implantation of the no-till system in an Oxisol of the Cerrado, Selvíria – MS, Brazil (20º 22´ S, 51º 22´ W). The treatments consisted of five lime application forms, in only one or split rates and two cover crops. Liming without incorporation, independent of the application form, corrected soil acidity and increased Ca and Mg levels in the 0-0.05 m layer; in the other layers these attributes were […]

In western Santa Catarina state, Brazil, swine manure is commonly used as nutrient source for crops. The aim of this study was to evaluate the effects of swine manure on chemical attributes of a Red Latosol (Hapludox), cultivated with corn under no-tillage conditions. Two experiments were carried out using different rates of liquid swine manure (0, 40 and 115 m-3 ha-1 year-1), applied annually at corn sowing, from 2000 to 2004, in Chapecó and from 2001 to 2004, in Guatambu. After the last […]

Lime recommendations developed for conventional systems are being used in no-tillage systems with different dynamics of the acidity attributes, due to organic matter and nutrient accumulation on the superficial layer and lower aluminum toxicity. This study associated different acidity indicators of a Rhodic Hapludox after eight years under no-tillage system with soybean plant characteristics in order to establish liming criteria. Two field experiments were compared, both under no-tillage for eight years; one had previously been under conventional tillage and the […]