thrips tabaci is one of the most important pests causing serioues damages on onion s in iran despite several chemical sprayings. to assess the population density and damage of the thips on onion, improved sefid-e-khomein genotype along with seven other iranian cultivars of onoin were planted in a rcb design with four replications in two separate experiments (sprayed and non-spray ed ) in arak f...

Introduction: Nowadays, advancements in industries, technology and human welfare level have lead to accumulation of solid wastes and have endangered environmental health. Incorrect waste management intensifies this problem. Recycling and composting (transformation of organic waste to humus) are the most important ways in waste management. Health and safety of the compost is an important issue b...

in order to investigate the effects of weeds interference on yield and yield components of different genotypes of common bean, an experiment was conducted as split plot based on randomized complete block design with three replications at agricultural research station of tabriz university, in 2011. the main plots were eight genotypes of different types of common bean including red bean, (cv. gho...

Iran is located on a silver, lead, and zinc belt according to the latest studies holds 11 million tons of zinc, silver stones which constitute 4 percent global resources. Considering that mineral materials are explored in an uncertain space, exploration investment risk inseparable part these activities. The important fact minimize effect this undesired factor exploration. To achieve this, it re...

although host plant resistance is the healthiest, most reliable and cheapest way of pest control, to achieve a successful integrated pest management, pest-resistant plant varieties should be compatibity with the biological control agents. throughout the present study, the performance of the predatory mite, phytoseiulus persimilis، on four common bean cultivars (naz, khomein, akhtar and g11867) ...

pulses crops with nitrogen fixation ability have a special place in the crop rotation. in order to comparethe agronomic characteristics of five promising lines of pinto beans with sadri and local khomeincultivars as control a study was conducted at 2011- 2012 cropping seasons, in three cities offereidoonshahr, dehaghane and semirom in isfahan province. randomized complete block design withfour ...