This paper investigates the environmental fate of radionuclide decay chains (specially the (238)U and (232)Th series) being released from a conventional mining installation processing ore containing natural occurring radioactive materials (NORMs). Contaminated waste at the site is being disposed off in an industrial landfill on top of a base of earth material to ensure integrity of the deposit ...

Abstract Background and aims Higher plants represent an optimal tool to regenerate resources while producing food in Space. However, the configuration of fertile cultivation substrates based on extraterrestrial is still a challenge. We evaluated adaptability potato ( Solanum tuberosum L., cv. ‘Colomba’) growth six substrates: MMS-1 Mars regolith simulant, alone (R100) mixture with 30% vol. gree...

Field tests were conducted to determine if differences in response to nematicide application (i.e., root-knot nematode (RKN) populations, cotton yield, and profitability) occurred among RKN management zones (MZ). The MZ were delineated using fuzzy clustering of five terrain (TR) and edaphic (ED) field features related to soil texture: apparent soil electrical conductivity shallow (ECa-shallow) ...

Cotton (Gossypium hirsutum L.) yield and quality responses to irrigation have not been described for conservation management systems that growers are rapidly adopting. We conducted a field experiment from 2001–2003 in the Tennessee Valley near Belle Mina, AL on a Decatur silt loam (fine, kaolinitic, thermic Rhodic Paleudults) to examine how irrigation regimes and tillage systems affect ginning ...

to try and ascertain the relative importance of different soil properties for calibration. This approach has good Many empirical formulas relating TDR-measured permittivity (Ka) utility for finding simple and practical equations that can to volumetric water content ( ) have been presented owing to the lack of a robust and accurate physically derived model describing this be used to estimate . H...

as irrigation system installation is expensive and time consuming, it would be better to have an estimate of the water content provided by the system in the active root zone before designing an irrigation system. in this study, hydrus-2d performance was assessed under a tape irrigating in-situ with a heavy textured and relatively heterogeneous soil in rasht region. three different flows i.e. 2....

Conservation management practices – including agroforestry, cover cropping, no-till, reduced tillage, and residue return have been applied for decades to control surface runoff soil erosion, yet results not integrated evaluated across cropping systems. In this study we collected data comparing agricultural production with without conservation strategies. We used a bootstrap resampling analysis ...

The main contribution of this work is a new paradigm for image compression. We describe a new multi-layered representation technique for images. An image is encoded as the superposition of one main approximation, and a sequence of residuals. The strength of the multi-layered method comes from the fact that we use different bases to encode the main approximation and the residuals. For instance, ...

This may cause an unrealistic soil moisture regime and may effect crop growth. A method was developed to obtain large undisturbed soil cores To more closely represent an uninterrupted soil coland instrument those cores to collect vadose zone leachate data under agricultural field conditions. Twenty undisturbed soil core lysimeters umn at the point of leachate collection, a vacuum extracwere con...