5 documents found, page 1 of 1
Nutrient Accumulation in Eucalyptus grandis Biomass and Litter Using Urban Wast...
Andrade, Guilherme de Castro; Bellote, Antonio Francisco Jurado; Silva, Helton Damin da; Rizzi, Nivaldo Eduardo; Gava, José LuizLarge quantities of organic wastes are produced mainly in big cities, annually. There is urgent demand for safe and possible economic practices for its use on forest plantations. This study evaluated the effects of the application of urban waste and mineral fertilizers on Eucalyptus grandis W. Hill ex Maiden plantation growing on Neossolo Quartzarênico, analyzing nutrient contents in the litter and in the above...
Proposal of a Methodology for the Identification of Productive Management Units...
Bognola, Itamar Antonio; Gava, José Luiz; Fasolo, Pedro Jorge; Stolle, LorenaThe integrated information of soil characteristics as well as of other elements of the environmentis of fundamental importance for the sustainability and competitiveness of the Brazilian forest sector. Thisstudy was developed in order to identify a set of productive management units for plantations established withEucalyptus species, using the method called “Fuzzy Logic”. Data were obtained from 128 sampling un...
Average Soil Particles Diameter to Predict some Soil Physical Properties
Milde, Gilson Antonio; Dedecek, Renato Antonio; Gava, José LuizThe main purpose of this work was to estimate soil physical characteristics that are time consuming, developing mathematical models based on others characteristics obtained routinely on soil laboratories. Thirteen soils were selected varying from 40 to 590 g kg-1 of clay content. From these soils, undisturbed and bulk samples were obtained at 5 cm to 15 cm soil layer, and determined in laboratory, chemical (so...
Avaliation of the soil preparation quality in minimum cultivation area planted ...
Gava, José LuizEvaluations, of the quality of soil preparation in the plantation lines, were made in areas with potential risk of compaction using the penetrometer to collect data about the depth and width of the furrow. The samplings were made in three sites of production of Eucalyptus in areas of Cia Suzano de Papel e Celulose in the state of São Paulo, managed under minimum cultivation of the soil and where crop was mechan...
Evaluating soil tillage system effects on growing of Eucalyptus saligna coppice...
Cavichiolo, Sandra Regina; Dedecek, Renato Antonio; Gava, José LuizOn commercial plantation of Eucalyptus saligna, belonging to Suzano Paper and Cellulose Co., two Oxisol (coarse and clayey textured) were selected. Both soils were submitted to mechanized harvesting, and coppice was 1 year old (clayey soil) and 2 years old (coarse soil), when soil tillage systems were performed: harrowing and subsoiling. Undisturbed soil samples were collected at 50 cm from tree lines and at th...