نتایج جستجو برای: f ovina
تعداد نتایج: 306079 فیلتر نتایج به سال:
یکی از فاکتورهای مهم در تعیین ظرفیت چرایی، مشخص کردن حد بهره برداری مجاز گونه ها می باشد. این بررسی جهت تعیین بهترین شدت برداشت علوفه گونه هایbromustomentellus l.festucaovina, و stipahohenackeriana درمراتع نیمه استپی سرد کوهستانی فیروزکوه در طول سال های 85 تا 89 به اجرا درآمد. تیمارها شامل شدت های مختلف برداشت 25، 50 ، 75 درصد و شاهد بودند. در سال اول محدوده ای به مساحت یک هکتار انتخاب و حصارکش...
Abstract. The purpose of this study was to investigate the effects of topographical factors on the classification of grassland plant communities in the rangelands of Ghorkhud, Northern Khorasan Province, Iran. For sampling, land units were specified. A floristic list was prepared using minimal area method based on the nested plot (Braun-Blanquet method). 116 10m2 furrows were selected. Within e...
Evaluación ecológica de tres agroecosistemas de produccion ovina en los Valles Centrales de Oaxaca
During World War I there was much lamentation over the "defects of the draft," and the word "shocking" was in frequent use with reference to the condition of a large proportion of men of military age. When, more recently, it became necessary again for society to interpose a shield of human lives between itself and disaster, its cerebral cells once more became agitated over the report that its y...
There has been some transition to using low-input fine fescues on golf courses, but these species have poor traffic tolerance and divot recovery, making them impractical for playable areas courses. The objectives of this study were determine the effect plant growth regulator (PGR) trinexapac-ethyl performance fescue mixtures when managed as a course fairway identify that perform well under stre...
this research investigates the vegetation of 4600 ha of polour semi-steppe rangelands in relation to edaphic and physiographical parameters in mazandaran province. for this purpose, 23 land units were selected from overlaying slope, aspect and elevation maps using geographic information system (gis). within each unit, 3 parallel transects with 100 m length, each containing 10 quadrates (accordi...
Surtos de conidiobolomicose ovina por Conidiobolus lamprauges no Estado da Bahia, Nordeste do Brasil
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید