plant growth element Articles

  • Evaluation of elemental allelopathy in Acroptilon repens (L.) DC. (Russian Knapweed)

    Abstract  Although Acroptilon repens (L.) DC. (Russian knapweed) is known to concentrate zinc (Zn) in upper soil layers, the question of whether the elevated Zn has an allelopathic effect on restoration species has not been addressed. Experiments were conducted to investigate whether soils collected from within infestations of A. repens (high-Zn) inhibit the germination or growth and development ...


    By Springer

  • An empirical research on the interactions of China`s energy consumption, pollution emissions and economic growth

    Abstract: The negative effects of energy consumption and pollution have restrained Chinese economy from further rapid sustainable growth. Examining their relationship with economic growth can lay a solid foundation for the decision-making of energy conservation and pollution reduction and ensure the sustainable development of Chinese economy. Using panel data of 30 Chinese provinces from 2001 to ...


    By Inderscience Publishers

  • Extractability, plant yield and toxicity thresholds for boron in compost

    Boron (B) is a trace element essential to crop growth in small soil concentrations (0.2-1.5ppm), yet may produce plant toxicity symptoms readily as the amount in the soil solution increases over 2ppm. Boron is present in significant amounts in recycled materials such as municipal solid waste (MSW) and coal fly ash, and therefore composts containing these ingredients may potentially exceed ...


    By BioCycle Magazine

  • A review of the phosphorus content of dry cereal and legume crops of the world

    When food scarcity increases, instability in society increases. The majority of food consumed is from cereals and legumes. Phosphorus is essential for crop plant growth and soils are depleted as this element is removed from crop lands with harvested grains/seeds. To sustain yields, inputs of nutrients are required to balance losses. On global and continental/regional bases, we assembled nine ...


    By Inderscience Publishers

  • Tracheophytes contain conserved Orthologs of a Basic Helix-loop-helix transcription factor to modulate root hair specific genes

    Abstract Root Hair Specific (RHS) genes, which contain the root hair-specific cis-element (RHE) in their regulatory regions, function in root hair morphogenesis. Here, we demostrate that an Arabidopsis thaliana basic helix-loop-helix transcription factor, ROOT HAIR DEFECTVE SIX-LIKE 4 (RSL4), directly binds to the RHE in vitro and in vivo, up-regulates RHS genes, and stimulates root hair ...


    By H Smith Plastics LTD

  • The high-mobility-group domain transcription factor rop1 is a direct regulator of prf1 in ustilago maydis

    In the smut fungus Ustilago maydis, the pheromone signal is transmitted via a mitogen-activated protein kinase module to the high-mobility-group (HMG) domain transcription factor Prf1, leading to its activation. This triggers sexual and pathogenic development since Prf1 binds to the PRE boxes located in the promoters of the a and b mating type genes. Here, we present the characterization of rop1 ...

  • Distribution of 15N tracers applied to the canopy of a mature spruce-hemlock stand, Howland, Maine, USA

    In nitrogen (N) limited ecosystems fertilization by increases in N deposition may enhance plant growth and thus impact carbon (C) sequestration. However in many experimental N fertilization experiments that test this interaction, soils and not plants are the main fate of additional N. A key methodological feature in many N deposition-C sequestration experiments is the addition of N directly to ...


    By University of Maine

  • Potassium and winter hardiness

    The role of Potassium in metabolic processes such as protein synthesis and the movement of sugars within the plant is now well understood and recognised as crucial for maximising quality and yield. But it is now known Potassium also plays a significant role in helping crops resist disease and environmental stresses during winter dormancy and ensuring optimum supplies of Potassium to see crops ...


    By Ilex EnviroSciences Limited

  • Cannabis Irrigation-Israel

    Getting to Know Cannabis Farming Israel’s agricultural industry is ripening for the beginning of medical cannabis export, with the expected passage of medical export legislation by the end of the year. The timing is particularly fruitful for growers who are interested in succeeding in a new venture that is still in its infancy. The rewards are also high: Israel’s Health and ...


    By KIM

  • Florida Engineering Society - Mold Article - Understanding Mold in the Indoor Environment

    Untitled Document We can solve the mold problem. Understanding the basic ecology of fungi will lead us down the correct path. Yes, it will take some effort to change the way ...


    By EMSL Analytical, Inc.

  • Modulation of exogenous selenium in cadmium‐induced changes in antioxidative metabolism, cadmium uptake, and photosynthetic performance in the 2 tobacco genotypes differing in cadmium tolerance

    Hydroponic experiments were conducted using cadmium (Cd)–sensitive (cv Guiyan 1) and Cd‐tolerant (Yunyan 2) tobacco cultivars to evaluate cultivar differences in response to Cd toxicity in the presence of selenium (Se). The results showed that addition of 3 µM Se in 50 µM Cd solution markedly reduced Cd accumulation in plants, alleviated Cd‐induced growth inhibition, and increased nitrogen and ...


    By John Wiley & Sons, Ltd.

  • Field of genes: Uncovering EGRINs (Environmental Gene Regulatory Influence Networks) in Rice that Function During High-temperature and Drought Stress

    Heat and drought stress greatly restrict crop productivity, but most of what we know about a plant’s response to these stresses comes from controlled laboratory studies. This factor, along with the complex nature of these responses, has hampered efforts to breed and engineer crops with improved stress tolerance. Plants respond to fluctuating environments through the altered expression of ...


    By H Smith Plastics LTD

  • Compost Utilization goes Through the Roof

    Untitled Document Center for Green Roof Research at Penn State University uses compost in its media studies and plans to explore microbial communities. AT the Penn State ...


    By BioCycle Magazine

  • Low-cost composting of fruit processing wastes in Hungary

    Aim of the project The research described in this paper was undertaken in order to assess the economic and environmental viability of composting fruit juice wastes from the RAUCH Hungaria Kft. fruit processing plant in Budapest, Hungary. Hungary is a rapidly emerging economy in middle Europe, currently with a 4.6% growth rate according to the Hungarian Central Statistical Office (KSH, 1999). The ...


    By ORBIT e.V.

  • Low-cost composting of fruit processing wastes in Hungary

    Aim of the project The research described in this paper was undertaken in order to assess the economic and environmental viability of composting fruit juice wastes from the RAUCH Hungaria Kft. fruit processing plant in Budapest, Hungary. Hungary is a rapidly emerging economy in middle Europe, currently with a 4.6% growth rate according to the Hungarian Central Statistical Office (KSH, 1999). The ...


    By ORBIT e.V.

  • Evaluating Microbiology of Compost

    The fact that not all compost is created equal has both producers and growers looking for ways to successfully evaluate compost quality. Traditional compost analysis has focused on NPK and micronutrient concentrations in an effort to mirror fertilizer analysis. Compost, however, is much more complex than fertilizer and its most significant value to the grower may be far more than its mineral ...


    By BioCycle Magazine

  • State Fish Hatcheries and Invasive Species Don’t Mix

    INTRODUCTION The Vermont Fish and Wildlife Department is responsible for the protection and management of the state’s fish populations. Cultured fish are stocked in natural and manmade areas that are excellent for growth and survival but have little or no spawning habitat. Other stocking areas include natural water bodies where spawning and nursery habitats have been destroyed or isolated from ...

  • Compost Users Forum: The Applied Thoughts Of A Compost Theorist

    WITHIN a 60-mile radius of my office here in central California, there are 1,000 dairies — each having an average of 2,000 cows. They generate over four million tons of manure annually, so we are pretty much in the manure business whether we want to be or not. Somebody has to manage this material and help the farmers utilize it properly, fulfilling its potential monetary value. That’s what we ...


    By BioCycle Magazine

  • Composting infrastructure trends in the UK

    The European Union's Landfill Directive, which restricts landfilling of biodegradable waste, has made it necessary to develop alternative infrastructures to manage the organic fraction of the solid waste stream. In the United Kingdom, the Landfill Directive has created demand for composting facilities that take source separated organics (SSO), and for anaerobic digestion. Infrastructure also is ...


    By BioCycle Magazine

  • Cultivating the Next Generation of Sustainability Leaders

    International corporate volunteerism gives future leaders real-life experience facing challenges in emerging markets and could create self-perpetuating sustainable businesses ntroduced by John Elkington two decades ago, the “triple bottom line” has helped shape the definition of sustainable business today. Giving equal importance to three indicators — ...


    By Ensia

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