in order to study the effects of three operations of rangelands on the properties of vegetation in rangelands, this research was conducted in chaat gonbad, golestan province, iran in 2004. chaat area is located in 50 km of border road of dashlibroun to maravetappeh in north of attract river (border of iran and turkmenistan). the altitude is 70 m, annual rainfall is 170 mm and annual temperature...

the basic purpose of the fulfillment this research has been the appointment of economical evaluation indexes of aqua-agriculture reservoirs in golestan province. the method of information gathering in this research has been in way survey and in method census from 42 of aqua-agriculture reservoirs that information necessary to complete questionnaire has prepared. result showed the highest and lo...

this study was conducted to evaluate 13 promising triticale lines and cultivars based on yield traits, metabolizable energy and anti-nutritional compounds. the experiment was carried out using a rcb design with three replications at the seed and plant improvement institute, karaj and gonbad, during 2008-2009 cropping season. these genotypes were studied in the next year, at the animal science r...

Vegetation cover is the first barrier for the raindrops resulting to the interception and infiltration loss. Interception as one of the main components of ecohydrology equation plays a major role in the water balance of rangelands. However, few studies have been done on the interception of rangeland plants in Iran. This study was carried out to find the interception rate in Astragalus parrowian...

Human T-ceil lymphotropic virus, type 1 (HTL V-I) is considered to be the causative agent of adult T-cell lymphoma/leukemia and spastic paralysis, and seems to be common in Khorasan Province. 300 blood samples from Mashhadi and 180 from Gonbadi blood donors were obtained (all samples from healthy subjects). Serological screening was done by passive particJe- agglutination test and confirme...

in this study, some habitat characteristics of iranian rose (hulthemia persica) were studied in gonbad watershed in hamedan providence, iran. soil samples were taken by a systematic randomized method at elevation 2000-2400 m above sea level. samples were taken from 0-30 cm depth. in the laboratory, n, p, k% and organic matter (oc%), soil acidity (ph), conductivity (ec) and soil texture were det...

minoodasht which is located 18 km. far from the east of gonbad-kaboos, is one of the most important agricultural areas of iran. a great development in the agriculture of this area has been achieved by drilling wells, building canals, constructing the dams and also irrigation of the farms by pump. for determination of the physical and chemical characteristics of the waters from different sources...

0