plant growth element Articles

  • 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

  • Ecotoxicological responses of three ornamental herb species to cadmium

    Cadmium is one of the most toxic elements. The ideal vegetal cover should be ensured by the selection of appropriate plant species for successful phytoremediation. In the present study, the ecotoxicological effects of Cd on the following 3 ornamental herbs were investigated: Italian ryegrass (Lolium multiflorum Lam.), white clover (Trifolium repens L.), and alfalfa (Medicago sativa L.). Based ...


    By John Wiley & Sons, Ltd.

  • 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

  • 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

  • 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.

  • 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

  • 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

  • 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

  • The cloud isn`t just for rain anymore

    Precision agriculture has been a key enabling technology to achieve higher yields with lower cost and less environmental impact, while keeping the cost of food fairly stable Has global agricultural productivity increased or decreased in the last 25 years? It has, in fact, more than doubled since 1985. Next to advances in seed genetics, precision agriculture has been a key enabling ...

  • Arsenic in irrigated paddy soils

    Natural arsenic pollution of drinking water has been reported from over 70 countries world-wide, affecting an estimated 150 million people (Ravenscroft et. al., 2008). About 50 million of these people live in Bangladesh, 30 million in India and 33 million in six other countries of south and south-east Asia. It has recently been recognised that arsenic-contaminated groundwater used for irrigation ...

  • One Year Later · Persistent Herbicides in Compost

    ONE YEAR has passed since the Washington State University (WSU) composting facility and the Spokane Regional Compost Facility discovered traces of persistent herbicides in their composts. In Spokane, the source of contamination is a compound called clopyralid. Compost contamination at WSU initially involved the herbicide picloram, but clopyralid has since been detected in the compost also. In ...


  • California company closes the composting loop

    BEFORE we made our first ton of compost, we had already talked to farmers to determine what they needed in a soil amendment,” says Roger Van Der Wende, Vice President, Supermarket Division, Community Recycling & Resource Recovery, Inc. (Community) in Sun Valley, California. Considering the fastidious navigation the company has done to advance in a previously uncharted realm of resource ...


    By BioCycle Magazine

  • Development of Indonesian Fish Farming & Aquaculture Production

    Part 1.Fish Farms Market Overview in Indonesia Part 2.Reasons Why Fishery Industry Develops Fast in Indonesia Part 3.Fish Farm Types in Indonesian Part 4.Sustainable Development of the Fishery in Indonesia Fish Farms Market Overview in Indonesia Fish farming is the ...

  • In Business World

    In Business and BioCycle are holding their 7th Annual Conference on Renewable Energy From Organics Recycling, October 1-3, 2007 in Indianapolis, Indiana. The conference highlights renewable energy projects that cross a range of technologies and feedstock sources. Small and large-scale anaerobic digestion projects that incorporate animal manures, as well as food processing residuals, fats/ ...


    By BioCycle Magazine

  • Research Analysis of the Market Potential For Lower Grade Composted Materials in the UK

    Executive Summary 1. Description This report presents the findings of research undertaken by WRc, under contract to the Waste andResources Action Programme (WRAP). The research analysed the market potential for low grade composted materials in the UK, taking the risks associated with their use in different applications into account. It also assessed the viability of ...


    By WRc plc

  • Compost science journal of advocacy and foresight

    SEVERAL months ago, I started on a journey through the pages of Compost Science, beginning with the Spring, 1960 inaugural issue. I was confident that I could whip through the articles and news items in the several hundred issues of the magazine between 1960 and 2009, and be prepared to write this article for BioCycle’s 50th Anniversary Commemorative Edition. Granted, there were interruptions, ...


    By BioCycle Magazine

  • Compost Purchasing: Using Specifications to Expand Markets

    As part of its market development initiatives for urban bulk procurement of organics, the California Integrated Waste Management Board (CIWMB) focused on preparing model specifications to assist purchasing of both compost and mulch. The aim was not to provide a single “best” specification, but to offer a series of “illustrative draft specs,” varying according to end user requirements. In ...


    By BioCycle Magazine

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