Soils - Leaching
Potassium leaching in different soils as a function of irrigation depths
... Potassium (K) can be easily lost by the leaching process. The objective of this study was to quantify K leaching in clayey and sandy soils under increasing irrigation depths. The experiment was ...
6
MODELLING THE RISK OF NITRATE LEACHING FROM TWO SOILS AMENDED WITH FIVE DIFFERENT BIOSOLIDS
... air moisture) for 12 hours light/day during 23 weeks for a non-leaching experiment. Three pots containing 1.5 kg blank-Spodosol and three with blank-Oxisol were placed together with the others as control. Blank ...
8
Spatial distribution and natural leaching of salts in soils of the California Irrigation District in the State of Sergipe, Brazil
... of soils, associated with deficiencies in the drainage system in irrigation districts, contribute to a high potential of soil salinization ...for leaching of these salts by rainwater in the California ...
7
Sorption and leaching of thiamethoxam in soils treated with sewage sludge and cultivated with Coffee arabica.
... AND LEACHING OF THIAMETHOXAM IN SOILS TREATED WITH SEWAGE SLUDGE AND CULTIVATED WITH Coffee ...and leaching of thiamethoxam in dystrophic Red- Yellow Latosol (LVAd), dystroferric Red Latosol (LVdf) ...
5
Boron Leaching Decreases with Increases on Soil pH
... limed soils, both after calcium carbonate application (Alleoni and Camargo, 2000) and aluminum hydroxide precipitation (Alleoni and Camargo, 2000), have a high capacity to sorb B, via adsorption or precipitation, ...
7
Picloram + 2.4-D leaching test
... picloram leaching potential, becoming less significant in soils with high content of organic ...tropical soils has provided a decrease in ametrine sorption and this was correlated with soil ...
10
Leaching of cations in soil cultivated with sugarcane subjected to saline irrigation and leaching fractions
... agricultural soils can cause serious damages to soil physical and chemical processes (lower availability of water and nutrients to plants, reduction in the osmotic potential of the soil solution and clay ...
6
Sustainable Soil Washing: Shredded Card Filtration of Potentially Toxic Elements after Leaching from Soil Using Organic Acid Solutions.
... We further assessed SC for retention of PTE, using acidified water (pH 3.4). Vertical col- umns and a peristaltic pump were used to leach PTE from soils (O and A/B horizons) before passing through SC. Sorption ...
14
Sodic soil properties and sunflower growth as affected by byproducts of flue gas desulfurization.
... With the application of BFGD the salt content of the soil will increase. As crops are very sensitive to salinity, especially in the seedling stage, the salt in the soil must be promptly removed [11– 12]. In this study, ...
8
Thermal treatment and leaching of biochar alleviates plant growth inhibition from mobile organic compounds
... The herbaceous species Lolium multiflorum Lam. (annual ryegrass: hereafter ryegrass) and Trifolium repens L. (white clover: hereafter clover) are commonly used as temperate forage crops, for erosion control (Ledgard ...
25
NITRATE ROLE IN BASIC CATION LEACHING UNDER NO-TILL
... Nitrogen fertilization intensifies the Ca movement through the profile of limed tropical soils (Pearson et al., 1962). Foloni & Rosolem (2006) observed an effect of N fertilization on Ca mobility down to 30–50 ...
10
ISOLATION AND IDENTIFICATION OF PROFENOFOS DEGRADING BACTERIA Saadatullah Malghani † , Nivedita Chatterjee † , Hu Xue Yu , Zejiao Luo
... An enrichment culture technique was used to isolate bacterial strains responsible for the biodegradation of profenofos in a soil from Hubei province of central China. Two pure bacterial cultures, named W and Y, were ...
8
Structural and Floristic Variations in an Atlantic Subtropical Rainforest in Southern Brazil
... of soils over tree ...of soils? A positive answer is expected, since this ascertainment has already been confirmed in studies conducted in other regions of the Atlantic Subtropical Rainforest (Curcio et ...
10
Causes of morphological discontinuities in soils of Depressão Central, Rio Grande do Sul State, Brazil
... P1, P2 and P5 profiles had the R Ti within the 1 ± 0.25, therefore the mass balance of Al, Fe, Ca and Mg was calculated for these profiles (Table 5) using Ti as the index element to correct for strain due to weathering ...
8
ELECTROCHEMICAL ATTRIBUTES AND AVAILABILITY OF NUTRIENTS, TOXIC ELEMENTS, AND HEAVY METALS IN TROPICAL SOILS
... a regression model to obtain the surface constants from CEC, Fe oxide, organic and inorganic carbon, and found that the model was able to predict the ad- sorption. More recently, Goldberg at al. (2005) ap- plied the CCM ...
20
QUANTIFICATION OF THE SOIL PHYSICAL QUALITY OF A TROPICAL OXISOL USING THE S INDEX
... different soils and management systems are needed to better as- sess and validate the S parameter as an indication of the soil physical ...temperate soils on the same scale ba- ...
5
IRON OXIDES IN SOILS
... The high affinity of iron oxides for phosphate has for decades boosted research into the adsorption, desorption and diffusion dynamics of P, and its availability, in soils (Table 1). Some studies have revealed ...
11
Concentration of Radioactive Elements (U, Th and K) Derived from Phosphatic Fertilizers in Cultivated Soils
... According to Pfister et al., (1976), the differences in radioactivity concentrations in various products are mainly due to the mode of fractioning during the chemical reaction in the acidulation phase of the phosphoric ...
12
Emissões de CO2 , particionamento da respiração e qualidade da matéria orgânica em solos sob cultivo de eucalipto no Cerrado
... in soils with lower clay content in the Brazilian Cerrado region and in southern Brazil SOM stocks was found positively related with the clay content, but not to litter input or quality (Sausen et ...
77
Biological activity of soils under systems of organic farming, agroforestry and pasture in the Amazon
... Comparing the intercropped organic systems, both of which consist of five plant species, with four being the same (passion fruit, maize, cassava and pineapple) and one specific (kudzu or forage peanut), it is seen that ...
6