plant nutrient Articles

  • Model of an aquaponic system for minimised water, energy and nitrogen requirements

    Water and nutrient savings can be established by coupling water streams between interacting processes. Wastewater from production processes contains nutrients like nitrogen (N), which can and should be recycled in order to meet future regulatory discharge demands. Optimisation of interacting water systems is a complex task. An effective way of understanding, analysing and optimising such ...


    By IWA Publishing

  • Testing confirms more efficient fertiliser use lifts gross margins

    This article discusses how accounting for the variation in crop yield potential due to season and soil type when formulating fertiliser rates can increase profit and reduce nutrient excesses. It shows that improved estimates of yield potential can increase gross margins by A$2–$20/ha over ‘farming-for-the-average’, with higher increases on soils with lower plant-available water capacity at drier ...

  • Root penetration through sealing layers at mine deposit sites

    To prevent acid mine drainage arising from oxygen and water penetration of sulphide-rich mine tailings, the tailings are covered with layers of dry sealing material. Plant roots have a great ability to penetrate dense materials, and if the roots are able to penetrate the sealing layer of a tailings deposit, its oxygen-shielding properties could be reduced. The objective of this study was to ...


    By SAGE Publications

  • Farmers Can Now Reduce Their Nitrogen Inputs and Maintain Yields

    Cbio develops biological product which could potentially reduce nitrogen use in farming, increase yields and improve water quality. SCIENTISTS at an environmental biotechnology company have developed a biological product that could potentially be used to directly reduce the amount of nitrogen and other ...


    By Cleveland Biotech Ltd.

  • Features of impulse sprinkling technology

    The principle of non-stop water supply to plants and soil in accordance with their water intake is progressive. Drip irrigation and impulse sprinkling correspond to this principle. Drip irrigation provides optimal water and nutrient regimes directly to the root system of plants. However, this irrigation is not effective enough under conditions of high temperature (over 25–35 °C) as growth ...


    By IWA Publishing

  • How the Earthworm Improves the Soil

    Nature has ways of converting vegetable and mineral raw materials into high-quality products. The inconspicuous earthworm provides striking example — it is a minirefinery in the soil. The dew worm or common earthworm, which is native to Europe, is just one of more than 3000 earthworm species in the world. About 30 centimeters long, the powerful earthworm digs ...


    By Sulzer Management Ltd

  • An Atlas of pan-European data for investigating the fate of agrochemicals in terrestrial ecosystems

    In 2000, with the enforcement of the Water Framework Directive (WFD) 2000/60/EC the European Commission established a framework for the protection of surface, subsurface and coastal waters. The WFD requires Member States to implement all necessary measures to prevent deterioration of the status of surface water bodies, and to protect and enhance the status of surface water bodies. This will also ...


  • Experience in improving fertiliser value of compost by enriching with urine

    Urine contains a lot of nitrogen, phosphorus and potassium, and could act as valuable plant fertiliser. But urine is often either flushed down a toilet or enters a pit latrine, thus being lost to agriculture and increasing surface and groundwater contamination with nitrogen. Ecological sanitation concepts are closing the loop of nutrients contained in wastewater with agriculture. Besides ...


    By Inderscience Publishers

  • Stud case study

    A major vegetable grower in Lantokia, Fiji, using soilless culture systems began to trial Amnite A-100. His crops consisted principally of lettuce, tomatoes, capsicums, cucumbers, zucchinis and melons. Before the trials they had been plagued with root diseases, mosaic virus and insect attack, control of which required constant use of pesticides and ultraviolet lighting. The first trials commenced ...


    By Cleveland Biotech Ltd.

  • Herbage, phosphorus, and nitrogen yields of winter-season forages on high-phosphorus soil

    In climates where cool seasons can produce a forage crop, annual grasses and forbs can be used on dairies to recycle nutrients back to the animals and to phytoremediate soils high in P or N. In north-central Texas, on a Windthorst fine sandy loam (fine, mixed, thermic, Udic Paleustalf) with 250 mg P kg–1, an on-dairy trial measured yields of dry matter (DM), N, and P, as well as fiber fractions ...

  • Unique Approach for Sizing a Reclaimed Water Spray Irrigation System Maximizes Benefits

    In 2004, the City of Raleigh Public Utilities Department (CORPUD) initiated a reclaimed water spray irrigation system project to irrigate approximately 130 acres of its existing 1,030-acre farmland used in the past to land apply Class B biosolids. Unlike typical land application or reclaimed water irrigation systems, the primary driver was not to minimize surface water discharge, but rather to ...

  • Uncomposted wool and hair-wastes as soil amendments for high-value crops

    The hypothesis of this work was that uncomposted sheep wool and human hair could be used as nutrient source for nonedible high-value plants. Pot and field experiments were conducted to assess uncomposted sheep wool-wastes and human hair-wastes as a nutrient source for high-value crops and to evaluate the effect of these waste materials on soil microbial community and mycorrhizae. In the pot ...

  • The CAMBI process and agriculture, a sustainable solution?

    Abstract Both public acceptance and interest from farmers for spreading biosolids from waste water treatment plants (wwpt) on arable land, are dependent on some fundamental criteria. These criteria are, however, quite straightforward. The biosolids should be safe, easy to handle, a well documented source of plant nutrition, without disagreeable odours and easily available. A big part of the ...


    By Cambi Group AS

  • Value of composted organic wastes as an alternative to synthetic fertilizers for soil quality improvement and increased yield

    One of the major problems with agricultural soils in the tropical region of the western Pacific islands is their low organic matter content, which results from rapid decomposition due to the hot and humid environment. Composted organic material is frequently applied on agricultural fields as an amendment to provide nutrients and also to increase the organic matter content and to improve the ...


    By BioCycle Magazine

  • Reuse of treated wastewater using sequencing batch bioreactor for the improvement of wheat growth

    Reclaimed wastewater reuse for irrigation to crop plants is evaluated in a laboratory-scale experiment to assess growth and water saving potential from natural resources. A prototype laboratory-scale treatment plant was established for this purpose with suspended and attached growth configurations. Chakwal wheat variety was selected to examine growth parameters. The removal of chemical oxygen ...


    By IWA Publishing

  • An overview of preharvest factors influencing postharvest quality of horticultural products

    Postharvest product quality develops during growing of the product and is maintained, not improved by postharvest technologies. Available genetic material allows discrimination of external and internal quality attributes that must satisfy consumer requirements and indulgences. Farmers face challenges in utilising technologies for producing high quality crops; meaningful manipulation of light, ...


    By Inderscience Publishers

  • Kirk Environmental complete GBP£3m environmentally friendly farm AD facility in Rural Cumbria case study

    Kirk Environmental was appointed the Main Contractor for the second Farmgen on farm AD plant in Cumbria. The plant at Dryholme Farm, near Silloth, is now fully operational and supplying enough electricity to power over 1,000 homes to the national grid. The supply and construction by Kirk Environmental included 3 Glass Coated Steel Digestion tanks complete with BIODOME® Double Membrane Gas ...


    By KIRK UK

  • Effects of biowaste compost on vegetative growth, Yield and fruit quality of james grieve apples

    In Lower Austria 69 agricultural composting plants are in operation in addition to municipal and commercial composting plants. The agricultural composting plants process separately collected organic household waste as contractual partners for the neighbouring municipalities. The compost produced is used to a large extent on the agricultural fields of the plants' owners. In order to improve the ...


    By ORBIT e.V.

  • Analysis of Organic Fertilizer Market

    Organic fertilizer is processed by fermenting the animal and plant residues, it not only contains major elements that plant required such as nitrogen, phosphorus and potassium, also contains microelements such as molybdenum, zinc, iron, copper and other trace elements which is ...


  • Organic amendment of an ultisol: effects on soil properties, growth, and yield of maize in Southern Guinea savanna zone of Nigeria

    Background:The Southern Guinea savanna zone of Nigeria is characterized by inherently low soil fertility status and rapid nutrient depletion especially soil organic matter. However, this zone is characterized by abundant agricultural land and is a potential for crop production. Field experiments were conducted in order to evaluate the effects of integrated use of agricultural waste materials and ...

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