نتایج جستجو برای: production increase
تعداد نتایج: 1341351 فیلتر نتایج به سال:
To meet the challenge of feeding a growing world population with minimal environmental impact, we need comprehensive and quantitative knowledge of ecological factors affecting crop production. Earthworms are among the most important soil dwelling invertebrates. Their activity affects both biotic and abiotic soil properties, in turn affecting plant growth. Yet, studies on the effect of earthworm...
We reported previously that D-glucosamine or a close derivative was involved in the synthesis of the N-methyl-L-glucosamine moiety of streptomycin'). Since D-glucosamine is a component of the cell wall of streptomycetes2,3), this sugar or its derivatives may be a common precursor of streptomycin and the cell wall. We studied also whether UDP-N-methyl D glucosaminephosphate was involved in the s...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید