Abstract:The high demand for forest products in Brazil estimates a 2 million hectares increase in reforestation areas over the next 10 years, highlighting Eucalyptus species. However, these crops usually occur in acid soils that need correction to achieve high productivity. Besides limestone, lime mud, a residue from the cellulose industry, and gypsum can also be used as correctives, but there are doubts about doses and ways of application with the best results. Thus, were evaluated the soil chemical attributes, foliar… Show more
“…In the experiment in question, however with assessments of DBH, height and estimated volume per hectare at 12, 15 and 24 months of cultivation age, Pfleger et al (2020) observed that for DAP and volume, at 12 months, the limestone applied at a lower dose on the surface in the planting strip (T3) had an increase, in relation to the control treatment (T1). At 15 months, the application of limestone on the surface in the planting strip (T3), and limestone and gypsum on the surface in the planting strip (T6), the DBH and volume increased in relation to the gypsum incorporated in the planting furrow (T9).…”
Section: Plant Developmentmentioning
confidence: 89%
“…The sources of Ca used in the experiment were dolomitic limestone (PRNT: 56% and moisture: 1%), agricultural gypsum (33% of Ca) and lime mud (PRNT: 87% and moisture: 30.5%) (PFLEGER et al, 2020). The materials gypsum, dolomitic limestone and lime mud used for the experiment were analyzed in an energy dispersion X-ray fluorescence spectrometer.…”
Eucalyptus response to limestone, gypsum, and lime mud application in Humic Cambisol. This study aimed to evaluate the development of Eucalyptus dunnii Maiden in Humic Cambisol in the Santa Catarina. Individuals were treated with doses and application forms of dolomitic limestone, gypsum, and lime mud. The experiment was conducted in the field, testing the following treatments: T1 – control; T2 – 3.5 t ha-1 of limestone in total area; T3 – 1.75 t ha-1 of limestone in the planting strip; T4 – 3.5 t ha-1 of limestone in the planting strip; T5 – 3.5 t ha-1 of lime mud in the planting strip; T6 – 3.5 t ha-1 of limestone + 2.75 t ha-1 of gypsum in the planting strip; T7 – 1.75 t ha-1 of limestone in the furrow; T8 – 1.75 t ha-1 of limestone + 1.38 t ha-1 of gypsum in the furrow; T9 – 1.38 t ha-1 of gypsum in the furrow. The treatments were applied in April 2016, six months after the seedlings were planted. In total, four forest inventories were carried out, measuring plant height and diameter, from 2019 to 2022. Soil samples up to a depth of 0.40 meters were collected at 31 and 56 months after application of treatments, determining the relationships Ca/Mg and Mg/K. None of the variables, measured or calculated, of the plants were significantly altered as a function of the treatments. Ca/Mg ratios were higher under lime mud and gypsum, whereas Mg/K ones, under treatments with dolomitic limestone.
“…In the experiment in question, however with assessments of DBH, height and estimated volume per hectare at 12, 15 and 24 months of cultivation age, Pfleger et al (2020) observed that for DAP and volume, at 12 months, the limestone applied at a lower dose on the surface in the planting strip (T3) had an increase, in relation to the control treatment (T1). At 15 months, the application of limestone on the surface in the planting strip (T3), and limestone and gypsum on the surface in the planting strip (T6), the DBH and volume increased in relation to the gypsum incorporated in the planting furrow (T9).…”
Section: Plant Developmentmentioning
confidence: 89%
“…The sources of Ca used in the experiment were dolomitic limestone (PRNT: 56% and moisture: 1%), agricultural gypsum (33% of Ca) and lime mud (PRNT: 87% and moisture: 30.5%) (PFLEGER et al, 2020). The materials gypsum, dolomitic limestone and lime mud used for the experiment were analyzed in an energy dispersion X-ray fluorescence spectrometer.…”
Eucalyptus response to limestone, gypsum, and lime mud application in Humic Cambisol. This study aimed to evaluate the development of Eucalyptus dunnii Maiden in Humic Cambisol in the Santa Catarina. Individuals were treated with doses and application forms of dolomitic limestone, gypsum, and lime mud. The experiment was conducted in the field, testing the following treatments: T1 – control; T2 – 3.5 t ha-1 of limestone in total area; T3 – 1.75 t ha-1 of limestone in the planting strip; T4 – 3.5 t ha-1 of limestone in the planting strip; T5 – 3.5 t ha-1 of lime mud in the planting strip; T6 – 3.5 t ha-1 of limestone + 2.75 t ha-1 of gypsum in the planting strip; T7 – 1.75 t ha-1 of limestone in the furrow; T8 – 1.75 t ha-1 of limestone + 1.38 t ha-1 of gypsum in the furrow; T9 – 1.38 t ha-1 of gypsum in the furrow. The treatments were applied in April 2016, six months after the seedlings were planted. In total, four forest inventories were carried out, measuring plant height and diameter, from 2019 to 2022. Soil samples up to a depth of 0.40 meters were collected at 31 and 56 months after application of treatments, determining the relationships Ca/Mg and Mg/K. None of the variables, measured or calculated, of the plants were significantly altered as a function of the treatments. Ca/Mg ratios were higher under lime mud and gypsum, whereas Mg/K ones, under treatments with dolomitic limestone.
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