Results 21 to 30 of about 244,333 (312)

Assessment of Trace Element Contents in Soils and Water from Cerrado Wetlands, Triângulo Mineiro Region

open access: yesRevista Brasileira de Ciência do Solo, 2019
In the Brazilian Cerrado biome, there are wetlands locally known as “Veredas”, which are swampy plains between hills and rivers. Since the 1970’s, the Cerrado biome has been gradually converted to livestock, crop, or forestry production.
Bruno Teixeira Ribeiro   +6 more
doaj   +1 more source

Limits of agricultural greenhouse gas calculators to predict soil N2O and CH4 fluxes in tropical agriculture [PDF]

open access: yes, 2016
Acknowledgements This work was undertaken as part of the CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS), which is a strategic partnership of CGIAR and Future Earth.
Chirinda, Ngonidzashe   +13 more
core   +2 more sources

Redox Fluctuations Control the Coupled Cycling of Iron and Carbon in Tropical Forest Soils. [PDF]

open access: yes, 2018
Oscillating redox conditions are a common feature of humid tropical forest soils, driven by an ample supply and dynamics of reductants, high moisture, microbial oxygen consumption, and finely textured clays that limit diffusion.
Bhattacharyya, Amrita   +7 more
core   +3 more sources

Dietary selenium intake among Ethiopian children in areas known for selenium spatial variability

open access: yesFrontiers in Nutrition, 2023
IntroductionThere is spatial variability of selenium (Se) in soil and crops in Ethiopia. We assessed the Se content of food items, breast milk, and urine among infants in Ethiopia from two areas with contrasting Se concentrations in soils.MethodsDietary ...
Kaleab Hailu   +10 more
doaj   +1 more source

Tropical Soil Humus

open access: yes, 2022
In strongly weathered tropical soils, humus and humic substances (HSs) appear to play an important role in soil fertility because they represent the dominant reservoir and source of plant nutrients. As the refractory organic carbon form of soil, HSs play a vital role in the atmospheric CO2 sequestration.
Rolf, Gael, Mabicka Obame   +2 more
openaire   +2 more sources

Phosphate Sorption in Oxisols in Paraíba State, Brazil, Classified as Solution Equilibrium Phosphorus [PDF]

open access: yesIranica Journal of Energy and Environment, 2012
Aiming to evaluate the phosphorus adsorption in Oxisols with phosphorus remaining classified using the Langmuir isotherm, a study was developed in the laboratory at Federal University of Campina Grande, PB, with samples of the surface layer (0-20 cm) of ...
Lucia Helena Garófalo Chaves   +5 more
doaj  

Mitigating Potassium Leaching from Muriate of Potash in a Tropical Peat Soil Using Clinoptilolite Zeolite, Forest Litter Compost, and Chicken Litter Biochar

open access: yesAgronomy, 2021
Using muriate of potash (MOP) as a source of potassium (K) is a cost-effective method for crop production in tropical peat soils. However, exchangeable K commonly leaches from tropical peat soils because of high rainfall and a lack of clay to retain this
Kavinraj Krishnan   +6 more
doaj   +1 more source

An assessment of phosphorus soil tests for some tropical acid soils in Southern Thailand [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2005
Phosphorus deficiency is a major problem for tropical acid soils in southern Thailand, thus P fertilizer and lime are usually applied to soils to improve crop yield.
Nilnond, C., Leowarin, W., Maneepong, S.
doaj  

Soil and water pollution in a banana production region in tropical Mexico [PDF]

open access: yes, 2010
The effects of abundant Mancozeb (Mn, Zn— bisdithiocarbamate) applications (2.5 kg ha-1week-1 for 10 years) on soil and surface-, subsurface- and groundwater pollution were monitored in a banana production region of tropical Mexico.
Bastidas-Bastidas, P.J., de   +6 more
core   +3 more sources

Effects of sterilization techniques on chemodenitrification and N2O production in tropical peat soil microcosms [PDF]

open access: yesBiogeosciences, 2019
Chemodenitrification – the non-enzymatic process of nitrite reduction – may be an important sink for fixed nitrogen in tropical peatlands. Rates and products of chemodenitrification are dependent on O2, pH, Fe2+ concentration, and organic matter ...
S. Buessecker   +11 more
doaj   +1 more source

Home - About - Disclaimer - Privacy