plant biomass Articles
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Uptake and translocation of lead and pyrene by ryegrass cultivated in aged spiked soil
A greenhouse study was conducted to investigate the uptake and translocation of lead and pyrene in ryegrass (Lolium multiflorum L), cultivated in spiked soil. After ageing, the pots were cultivated with ryegrass seedlings to investigate soil-to-plant transfer characteristics of lead and pyrene. In the spiked soils, the biomass of plants was not significantly lower in comparison with the control, ...
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Influence of microbial activity on plant–microbial competition for organic and inorganic nitrogen
Abstract To investigate how the level of microbial activity in grassland soils affects plant–microbial competition for different nitrogen (N) forms, we established microcosms consisting of a natural soil community and a seedling of one of two co-existing grass species, Anthoxanthum odoratum or Festuca rubra. We then stimulated the soil microbial community with glucose in half of the microcosms ...
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Assessing the necessity of surface-applied preplant nitrogen fertilizer in rice systems
California rice (Oryza sativa L.) growers typically use two forms of preplant N fertilizer: aqua NH3 applied 7 to 10 cm below the soil surface (subsurface N) and surface-applied N. The rational for applying about 25% of the total N rate to the surface is to provide a readily available N source for young rice seedlings; however no research has been done to verify this. On-farm field studies were ...
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Sand abrasion injury and biomass partitioning in cotton seedlings
Wind blown soil particle abrasion negatively impacts millions of hectares of crops annually. The goal of this study was to examine the effects of wind and wind blown sand abrasion damage on cotton (Gossypium hirsutum L.) seedling biomass partitioning to leaves, stems, and roots. Seedlings of three cotton cultivars were exposed to no wind (untreated controls) or sand abrasive flux densities of 0, ...
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