Drill cuttings from oil exploration improve properties of substrate and growth of Ipê-branco (Tabebuia roseoalba) seedlings
HIGHLIGHTS Substrates with drill cuttings were evaluated for forest seedlings. The addition of drill cuttings led to substrates with higher nutrient concentrations. Heavy metals concentrations in the substrates were below the toxic ranges. The seedlings’ growth and quality were improved by the addition of drill cuttings. A proportion around 2.5 and 7.5% of drill cutting […]
Critical levels and fertility classes of soils with high-activity clay in the Brazilian semi-arid region
HIGHLIGHTS Boundary line method optimizes nutrient management to obtain high agricultural yields Method based on relative yield generates five classes of interpretation of fertility P, K and Ca show concentrations adequate higher to the reference literature Disregarding the high clay activity in the semi-arid region limits the yield of crops ABSTRACT Soil fertility evaluation is […]
At first they were very few. Over time, women were gaining strength and gaining spaces also on travel to identify profiles at soil classification and correlation meetings (CCRs).In this year 2024, 23 women were recorded, almost all in this photo that helps tell this story of achievements for women in soil science. Because, it is […]
Sediment source tracing in a Brazilian subtropical catchment using diffuse reflectance: Effect of spectral ranges, pre-processing techniques, and multivariate model
HIGHLIGHTS SVM outperforms PLSR for sediment source modeling, showing higher R² and lower RMSE. SGD pre-processing significantly improves SVM models, while PLSR benefits from SNV. UV-VIS spectra were less effective for source tracing compared to NIR and MIR. Reducing sediment sources enhances model reliability and decreases uncertainties. ABSTRACT Agriculture intensification in Southern Brazil’s subtropical regions […]
Potassium distribution in soil profiles under no-tillage system
HIGHLIGHTS Study reveals K accumulation in upper soil layers under no-tillage systems. Findings emphasize deep K fertilization to prevent surface runoff and erosion. We suggest revising K availability diagnosis methods for no-tillage soil systems. Highlights limited K migration, urging precise fertilization near root growth zones. ABSTRACT Potassium (K) vertical mobility in soils has often been […]
KSAT-SSSIR-DB: saturated hydraulic conductivity database and basic infiltration rate in Brazilian soils
Marta Ottoni A condutividade hidráulica saturada (Ksat) e a taxa de infiltração básica dos solos são propriedades essenciais e necessárias para diferentes aplicações geocientíficas. Dados dessas propriedades hidráulicas no território brasileiro são de difícil acesso, estando dispersos em publicações realizadas no pais. Este trabalho teve como objetivo elaborar um banco de dados de condutividade hidráulica […]
Reading suggestions
Tips to stay on top of what happens in Brazilian science How to measure soil health? solo? The 5th episode of the series How to Measter Soil Health, promoted by initiative 4 PER 1000 “Soil Carbon Science Webinar Series is now available on Youtube.In this episode, the researcher of Soil Health Institute, Cristine Morgan, presents […]
Should we all publish fewer articles?
I dare ask the following question to the academic investigation community: Should we all publish fewer articles? With this proposition, I am not arguing that we all “relax”, but that we work more to ensure the publication of fewer articles, but of higher quality, with new and significant scientific insights, rather than reporting routine or […]
