نتایج جستجو برای: varied from 1586
تعداد نتایج: 5636247 فیلتر نتایج به سال:
Successive cropping of potassium-demanding crops like sunflower leads to depletion of soil potassium (K). This study was conducted to investigate the different forms of K and quantity–intensity (Q/I) relationship for sunflower growing soils in Khoy region, West Azarbaijan province. Twenty composite soil samples were collected from different soil series. Different forms of K, including solution ...
Successive cropping of potassium-demanding crops like sunflower leads to depletion of soil potassium (K). This study was conducted to investigate the different forms of K and quantity–intensity (Q/I) relationship for sunflower growing soils in Khoy region, West Azarbaijan province. Twenty composite soil samples were collected from different soil series. Different forms of K, including solution ...
Microwave heating is an efficient thermal stimulation approach in developing coalbed methane (CBM). In this paper, a new microwave technology for CBM proposed and two structure schemes of waveguide antennas are designed. After characterizing the mathematical model coaxial antenna radiation, numerical coal reservoir heated by established, which couples both electromagnetic field heat transfer. T...
in this article, the size, dimensions, volume, bulk and particle densities, empyting and filling angles of repose and friction coefficients against different surfaces were evaluated for two varieties of barley, sahra and valfajr, as a function of moisture content in the range of 10.12 to 42.17 (w.b.%). most physical properties of barley varieties were significantly affected by moisture content ...
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