The influence of the coal, bio-affecting the increase in height, stem, root length and number can be generated from coal biological properties of several critical to maximizing the growth of soybean is Biobriquette can increase total nitrogen. to ground Because of its properties, the material absorbs the ions can absorb nitrate (NO3-) and ammonium (NH4 +) can not be lost to leaching of water before sending it to nitrate and ammonium. remains stored in the soil (Knowles et al., 2011; Dempster et al., 2012).
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