نتایج جستجو برای: silt percent
تعداد نتایج: 100411 فیلتر نتایج به سال:
In this study, effects of various media on growth and physical characteristics of Calendula were evaluated. 20 days old seedlings were transplanted on different crop residues as media, including, Siltas control FYM+Silt (1:3), FYM+Silt (1:3) Maize crop residues and FYM+Silt (1:3) cockscomb as treatment, Completely Randomized Designs (RCBD) was applied to test the significance of treatments and ...
abstract chickpea is weak in competition of weeds that damages to it at between 40 t0 60 percent. kermanshah province is one of the most important region for chickpea fields in iran. for these reosons, weed management is necessary in this crop. in order to evaluate of herbicides and stubble control on broad leave weeds control in chickpea. experiment was conducted in agricultural research stat...
Relationship of is one of the most useful interactions in terrestrial ecosystems that its positive effects on growth, physiology and ecology of different plants has been documented. This study investigated the relationship between important physicochemical characteristics of soils such as pH, electrical conductivity (EC), soil texture, organic carbon percentage, soil potassium percentage and t...
This study was conducted to investigate the effect of ecological factors on distribution, presence and absence of species Ferula ovina and F. persica in the semi-arid rangelands of Zanjan province, Iran in 2015. The locations of ten 4m2 plots with 15m spacing on three 150 m long transects were systematically randomized and determined in each key area within each hab...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید