heavy metals such as cadmium mainly enter in the environment and ecosystem as a result of human activities. this study was conducted in order to evaluate the ability of bacterial inoculants to enhance efficiency of phytoextraction in a calcareous soil. three plants (amaranthus retroflexus, helianthus annus and medicago sativa), along with three levels of inoculants and four levels of cd were ev...

Nitrate toxicosis associated with consumption of pigweed red-root (Amaranthus retroflexus) wasdiagnosed in a small herd of cattle in the suburb of Mashhad, northeastern Iran. The clinical signs wereruminal tympany, incoordination, tachycardia, dyspnea, head pressing, aggressive movements and jugulardistension. Seven animals including 3 young calves and 4 cows died of intoxication; other affecte...

to study allelopathic effects of iranian walnut (juglans regia l.) on germination and initial growth of purslane (portulaca oleracea) and redroot pigweed (amaranthus retroflexus) an experiment was conducted in shahed university. the result showed that fresh leaf had negatively effected on radicle length. also, with increasing extract concentrations of persian walnut, the seed germination and se...

non-beneficial and harmful weeds are plants that are unwanted, outside their home farms are growing and have the potential to exceed. this study was done in order to screening fungai and isolating nlp phytotoxine from them for selective biocontrol of amaranthus retroflexus and rumes crispus as a dicot, common and chemical herbicide resistance weeds. nlps are effective just on dicot plants. cont...

There is a possibility of using agricultural waste, in particular weeds, innovative technologies for the restoration disturbed land order to increase fertility. Digestate, after anaerobic digestion manure and weed plant Amaranthus retroflexus L. (AR), as well solid carbonaceous residue pyrolysis AR. The combination digestate, which contains high concentrations total nitrogen, phosphorus, potass...

Allelopathy offers potential for weed control through the production and release of allelochemicals from leaves, flowers, seeds, stems and roots.  In this research, allelopathy potentials of ethanolic and aqueous extracts of Vinca rosea L. leaves were evaluated. Three extract concentrations, including 2.5, 5 and 10% (w/v) of both aqueous and ethanolic were prepared from a 10% w/v stock solution...