Characterization of alluvial soil hydrodynamics in the upper Ipanema river basin using the Beerkan method

Abstract

The objective was to model the spatial distribution of the physical properties of the soil through geostatistics in the Brazilian semi-arid region. The study was carried out in the Experimental Basin of Ipanema River, Pernambuco, in an alluvial area with regular grid and samples of 40 points. Infiltration tests were carried out to assess hydraulic conductivity and sampling was performed to determine soil texture and soil organic carbon (SOC). The variables were subjected to descriptive and correlation statistical analyses, in addition to the geostatistical report, which indicated high variability for the hydraulic conductivity of the soil. The best fits were obtained with the Spherical model for the hydraulic conductivity, sand, silt, and clay variables, and the Gaussian model for SOC. Thus, with the geostatistics technique, it was possible to map and verify the main physical characteristics of the soil in the area, providing greater optimization in agriculturalplanning

Assessing soil temperature and moisture fluctuations under irrigated banana (Musa spp.) cultivation in response to coconut coir mulch cover

“…Similar results were obtained by [40], who analyzed the effect of rice straw mulch on soil temperature in irrigated vine cultivation in the Loess plateau, China, and found that the mulch reduced soil temperature during warmer periods and kept it higher in colder periods when compared to bare soil. [28] studied 4 different mulch types (wood dust, wood chips, dry grass (Cynodon spp.) and rice straw) in carrot cultivation and observed statistically significant differences.…”