The purpose of this study was to predict the percentage and yield chamomile essential oils using artificial neural network system based on some soil physicochemical properties. Several habitats cultivation were investigated 100 samples shipped greenhouse. maximum minimum pH, EC, K, OM (organic matter), CCE (calcium carbonate equivalent), clay in soils 8.75-7.94, 1.6-1.0, 381-135, 2.30-0.22, 69-...

Abstract. Organic matter (OM) is a major constituent of fine particulate matter, which contributes significantly to degradation visibility and radiative forcing, causes adverse health effects. However, due its sheer compositional complexity, OM difficult characterize in entirety. Mid-infrared spectroscopy has previously proven useful the study by providing extensive information about functional...

In the present paper the yield and soil spatial variability in an apple orchard was studied. Apples were collected manually and placed in plastic bins along the tree rows. Yield per ten trees was weighted and the geographical position in the centre of the ten trees was recorded, using a GPS, in order to create the yield map. The orchard was divided in management zones with the Management Zone A...

We studied the effect of seagrass (Cymodocea nodosa) colonization on community metabolism and sediment conditions. The biomass of C. nodosa increased with time after seagrass colonization. The biomass increased steadily during the 6.1 yr of colonization to 9.1 mol C m22. Gross primary production increased from 7 to 49.3 mmol C m22 d21 during the first stages of the colonization and then decreas...

Cadmium is a potentially toxic heavy metal that enters food chain from the soil through various anthropogenic sources. Availability of metal ions in contaminated soils can be reduced by the addition of organic amendments. In this study, effect of organic matter -farm yard manure (FYM) amendment on fractionation and availability of Cd to maize was evaluated. A green house experiment was conducte...

We have developed a modeling and measurement framework for assessing transport of contaminated soils and airborne particulates into a residence, their subsequent distribution indoors via resuspension and deposition processes, and removal by cleaning and building exhalation of suspended particles. The model explicitly accounts for the formation of house dust as a mixture of organic matter (OM) s...

The relationship between particulate organic carbon (POC) concentrations measured in modern sediment and fluxes of exported POC to the sediment surface needs to be understood in order to use POC content as a proxy of paleo-environmental conditions. The objective of our study was to compare POC concentrations, POC mineralization rates calculated from O2 consumption and POC burial rates. Benthic ...

chemical composition and metabolizable energy of three camel browsed halophyte species (atriplex leucoclada, suaeda fruticosa, seidlitzia rosmarinus) were assessed and in vitro digestibility of dm (ivdmd), om (ivomd), ndf (ivndfd), adf (ivadfd) were determined using a completely randomized design. plant samples were collected based on camel's grazing patterns during the autumn-winter grazi...

Jellyfish blooms can represent a significant but largely overlooked source of organic matter (OM), in particular at the local and regional scale. We provide an overview current state knowledge on bloom-forming jellyfish as sink OM for microorganisms. In particularly, we compare composition, concentration, release rates excreted by living with stored within biomass, which becomes available to oc...