plant nutrient Articles

  • 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 ...

  • 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

  • Factors affecting phosphorus exports from sites irrigated with abattoir wastewater

    Abattoir wastewaters often contain significant quantities of phosphorus, inorganic salts, nitrogen and biodegradable organic materials. The nutrients in abattoir wastewaters are potentially useful for plant production and in many countries the application of abattoir wastewaters to land is considered a preferable option to other forms of treatment. In this paper we investigate the factors that ...


    By Inderscience Publishers

  • 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

  • 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

  • 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.

  • 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 ...


  • 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

  • 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

  • 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.

  • 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 ...

  • Organic Fertilizer Benefits

    Organic Fertilizer Benefits – Why not use synthetic fertilizers? It’s a reasonable question. After all, nitrogen, phosphorus, and potassium ARE chemicals, so where is the advantage in these bags of heavy, grainy stuff, that need to be measured and mixed and then dug in, when you can just pick up a small plastic bottle of the blue stuff? There are several organic fertilizer ...


    By Organiksa SA

  • 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

  • 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

  • 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 ...

  • 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.

  • 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 ...

  • 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 ...


  • 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

  • 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

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