[PDF] Top 20 Leaching of nitrogen, potassium, calcium and magnesium in a sandy soil cultivated with sugarcane (1)

... detected in the leached ...resulting in 13 mm, a mean value, for the drained solution in the ...moisture of the soil on the day of ...displacement of the percolated ... See full document

... causes soil degradation, which is closely related to nutrient losses either in, the soluble form or adsorbed to soil particles, depending mainly on the adopted soil management ...out in ... See full document

... state of São Paulo, Brazil (21º55’ S, 47º10’ W, 650 m ...is of the Aw type: tropical of savanna. Based on 30 years of meteorological data from the location, the annual av- erage temperature is ... See full document

... yield, nitrogen uptake and water use efficiency as affected by planting geometry and level of nitrogen in an arid ...Influence of the irrigation technique and ... See full document

... The soil chemical properties were quantified using Mehlich-1 to determine P and K; extractor 1 mol L -1 KCl for Ca 2+ , Mg 2+ and Al 3+ ; calcium acetate extractor ...H+Al; and ... See full document

... one of the essential factors for the proper management of the fertilizers applied during the growing season is the movement of soil nutrients, because the optimization of fertigation ... See full document

... determination of these ions in soil, such as Spectrophotometry (Coelho & Gargantini, 1969; Nogueira et ...1971) and ICP-OES (Bernardi et ...compounds in soil, such as boron ... See full document

... alternative of sewage sludge recycling, under both, the environment aspect as well as the economic aspect, because it could transform the residues in an important agriculture ...use of sewage sludge ... See full document

... improvement in fertility, however, often fertilizer application occurs in areas considered homogeneous, without taking into account the variability of the ...objective of this study was to ... See full document

... pH, calcium, magnesium content of the soils increased while potassium, sodium, organic carbon, nitrogen and phosphorus were limiting at the end of ...addition of ... See full document

... collected in the water drained from the 120% ETc water depth to monitor the concentration of leached salts, by measuring the electrical conductivity (ECdw) with a benchtop conductivity meter (Model ... See full document

... T150 and T200, ...ratio of about five (da Fonseca et ...amounts of Na to the soil system, representing a major risk of sodification (Leal et ...2009). Soil sampling for TC ... See full document

... Fate of N applied as green manure or ammonium fertilizer to soil subsequently cropped with spring wheat at three sites in western ...Journal of Soil Science, ...fertilizer ... See full document

... Blume and Reichert (2015) reported that decreased k for long-term cultivation independently of pesticide input clearly shows an age effect on mineralization rate for readily decomposable organic ... See full document

... design, with four treat- ments and 50 replicates (samplers). Analysis of variance was used to compare treatment means, since the assump- tions for use of the ANOVA technique were ... See full document

... grid, with dimensions of 107 × 95.7 m and 65 sampling points, was set ...up. Soil samples were collected from the ...statistical and geostatistical ...number of samples for ... See full document

... by leaching were similar in the 1 st year of a corn crop, for three N rates ap- plied (22, 100, and 134 kg N ha -1 ), in two soil types (sandy and clayey), but ... See full document

... (39) and CNFP 15361 (12), as can be observed in the UPGMA cluster (Figure ...use of these two genotypes as parents for the formation of segregating populations in breeding programs is ... See full document

... observed in pa- tients with Sheehan’s syndrome: hyponatremia, 46 patients ...(47.4%); and hypophosphatemia, 18 patients ...range) in patients with Shee- han’s syndrome accompanying ... See full document

... grinding and polishing. Back scattered electrons (BSE) were utilized in SEM in order to reveal difference in chemical compositions of microcomponents present in particular ... See full document