background: the use of alternative disinfectants and the control of natural organic material are two approaches that are typically applied in water treatment utilities to reduce the formation of chlorinated disinfection by-products in recent years. catalytic ozonation as a new technology is used to promote the efficiency of the single ozonation processes. the purpose of this study was to invest...

A total of 7,899 stomachs from 40 species, walleye pollock (Theragra chalcogramma), Pacific cod (Gadus macrocephalus), arrowtooth flounder (Atheresthes stomias), Pacific halibut (Hippoglossus stenolepis), sablefish (Anoplopoma fimbria), spiny dogfish (Squalus acanthias), big skate (Raja binoculata), Bering skate (Bathyraja interrupta), Alaska skate (Bathyraja parmifera), longnose skate (Raja rh...

to compare the quantity and quality of forge production in intercropping systems with maize, pinto bean and pumpkin, an experiment based on randomized complete block design with three replications was conducted at faculty of agricultural science, university of guilan, during 2012 growing season. the treatments consisted of maize, pinto bean and naked pumpkin sole cropping, maize – pinto bean an...

intercropping is one of the most important approaches for sustainable agricultural production. in order to evaluate the effect of planting patterns and millet density on forage yield of millet and soybean, an experiment was conducted in the research farm of faculty of agriculture, ferdowsi university of mashhad during the 2007-2008 growing season. the experiment was performed as factorial based...

this experiment was carried out at agricultural research station of gorgan during summer 2006 to study the effects of corn and green gram intercropping on forage yield, and weed biomass. the experimental design was rcbd with twelve treatments and four replications. a local green gram and corn single cross 550 were the crops employed. the experimental treatments consisted of sole corn and sole g...