crop nutrient Articles

  • Enhancing nutrient cycling by coupling cover crops with manure injection

    Coupling winter small grain cover crops (CC) with liquid manure injection may increase manure nutrient capture. The objectives of this research were to quantify manure injection effects using target swine (Sus scrofa) manure N rates of 112, 224, and 336 kg N ha–1 on CC plant density, fall and spring shoot biomass, N, P, and K uptake and subsequent corn (Zea mays L.) yield. A winter rye (Secale ...

  • Compost, manure and synthetic fertilizer influences crop yields, soil properties, nitrate leaching and crop nutrient content

    From 1993 to 2001, a maize-vegetable-wheat rotation was compared using either 1) composts, 2) manure, or 3) synthetic fertilizer for nitrogen nutrient input. From 1993 to1998, red clover (Trifolium pratense L.) and crimson clover (Trifolium incarnatum L.) were used as an annual winter legume cover crop prior to maize production. From 1999 to 2001, hairy vetch (Vicia villosa Roth.) served as the ...


    By BioCycle Magazine

  • Building a Business with Nutrient Management

    Laurelbrook Farm is a third-generation dairy farm in East Cannan, Connecticut. The Jacquier family owns 275 acres, and rents an additional 2,500 acres for cropping, to support a herd of 830 cows. The family began composting three years ago as part of the farm’s nutrient management plan, as well as to determine the market for compost in the area. “In 2003 the Environmental Protection ...


    By Eggersmann GmbH

  • Long-term fertilizer experiment network in China: Crop yields and soil nutrient trends

    Results are summarized for the first 15 yr of an eight-site, long-term experimental network in China designed to assess the sustainability of cropping systems in environments representing 70% of Chinese cropland. Systems were wheat–maize double cropping (two crops per year) at four sites, wheat–rice double cropping, rice-based triple cropping, and wheat or maize single cropping. Without ...

  • Performance of an optimized nutrient management system for double-cropped wheat-maize rotations in North-Central China

    Overapplication of N and P and insufficient supply of K are considered primary reasons for restriction of yield improvement in the North China Plain. Optimized nutrient management practices based on soil testing and yield targets have been developed. Other large scale field experiments have indicated that additional improvement for yield and nutrient use benefits is needed. The objective of this ...

  • Vermicomposting of oil palm empty fruit bunch and its potential in supplying of nutrients for crop growth

    Oil palm (Elaeis guineensis Jacq.) plantations generate a large quantity of by-products, such as empty fruit bunches (EFB) and palm fronds. These by-products are very difficult to decompose in natural condition. Vermicomposting of these by-products would be able to provide some useful nutrients for crop growth. There was no information available on the composting condition of these oil palm ...


    By BioCycle Magazine

  • Eutrophication: Sources and drivers of nutrient pollution

    Nutrient over-enrichment of freshwater and coastal ecosystems, or eutrophication, is a rapidly growing environmental crisis. Worldwide, the number of coastal areas impacted by eutrophication stands at over 500. In coastal areas, occurrences of dead zones, which are caused by eutrophic conditions, have increased from 10 documented cases in 1960 to 405 documented cases in 2008. In addition, many of ...

  • Cultivating energy crop production

    A NEW Farm Bill is moving through the Congressional legislative process. Along the way, commercial agriculture is debating the energy impacts of future corn and soybean production. The growth of corn-based ethanol and soybean-based biodiesel has created competition for the feed inputs into animal agriculture, namely corn and soybeans. While most of agriculture discusses energy production from ...


    By BioCycle Magazine

  • Crops flourish with Scalewatcher

    Water is an essential component of horticulture and agriculture whether it is used for irrigating field-scale vegetables, nursery stock, flowers or fruit.  Where water contains high degrees of calcium, magnesium and sodium, it can cause nutrient deficiency in plants and crops resulting in stunted growth and poor yields. Calcium also blocks irrigation systems and boilers in heated ...

  • GWT- Agro-Z nutrient soil medium enhancer

    Genesis Water Technologies case study for GWT Agro-Z specialized natural soil enhancement medium. This case study document shows the differences between vegetables grown with GWT Agro-Z zeolite soil medium and vegetables grown without this medium. Trials of seedling plants grown with the GWT Agro-Z medium have shown improvements in primary root development. Studies have resulted in better ...

  • Prediction of Soil and Nutrient Losses in A Highland Catchment

    Highland catchments in tropical regions are frequently subjected to soil erosion and the transport of chemicals downstream. Any drastic changes in land use will increase the severity of these processes of land degradation. A simulation study using GLEAMS (Groundwater Loading Effects of Agricultural Management Systems) was conducted at a catchment presently under tea farming in Cameron Highlands, ...


    By Springer

  • Zonejection: Conservation tillage manure nutrient delivery system

    Manure application in minimum till (MT) systems is a challenge worthy of attention because residue cover is a keystone for environmental protection. To develop a system combining zone tillage and manure application into one operation (zonejection), two experiments were conducted. In Exp. 1, liquid swine manure (LSM) was applied in fall or spring for two site years (A, B). In Exp. 2, LSM was ...

  • Prediction of Soil and Nutrient Losses in A Highland Catchment

    Highland catchments in tropical regions are frequently subjected to soil erosion and the transport of chemicals downstream. Any drastic changes in land use will increase the severity of these processes of land degradation. A simulation study using GLEAMS (Groundwater Loading Effects of Agricultural Management Systems) was conducted at a catchment presently under tea farming in Cameron Highlands, ...


    By Springer

  • Nutrient Management: Recycling Residuals Into Animal Feed

     Composting Reduces Fuel and Labor Costs on Family Farms Jeff and Pam Riesgraf — who manage a certified organic dairy and crop operation near Jordan, Minnesota — began composting manure from their dairy herd in 1993. They had two major objectives. First, they wanted to reduce weed seeds naturally present in manure. At the same time, they understood the need to protect water quality by ...


    By BioCycle Magazine

  • Emissions from Crops - POST Note

    Agriculture contributes 9% of the UK’s greenhouse-gas (GHG) emissions burden and 10-12% globally. Although there is a long-term declining trend from UK agriculture, the sector may account for a larger share of overall emissions in the future as other sectors reduce emissions. This POSTnote focuses on reducing GHG emissions from growing and storing arable and horticultural crops. ...


    By UK Parliament

  • Sugarcane response to mill mud, fertilizer, and soybean nutrient sources on a sandy soil

    Improving soil organic matter and soil fertility are important factors in the sustainability of sugarcane (Saccharum spp.) production. A 3-yr field trial was established in 2004 on a sandy Alfisol in Florida to compare the effect of organic and inorganic nutrient sources on sugarcane production. The three nutrient sources were (i) mill mud (filter cake, cachaza), (ii) local standard fertilizer, ...

  • Vermicomposting of mustard residue and effect of its application on soil and plant nutrients status

    Vermicomposting of mustard (Brassica juncea) residue with pretreatments of submergence in water, nutrients (urea and low grade rock phosphate) supplementation, microbial (Bacillus sp., Trichoderma viride and Cellulomonas fimi) inoculation and their combined use with fresh cow dung/slurry improved the quality of vermicomposts with respect to C/N ratio, yield, humus fractions and nutrients content. ...


    By Inderscience Publishers

  • The manage database: nutrient load and site characteristic updates and runoff concentration data

    The 'Measured Annual Nutrient loads from AGricultural Environments' (MANAGE) database was developed to be a readily accessible, easily queried database of site characteristic and field-scale nutrient export data. The original version of MANAGE, which drew heavily from an early 1980s compilation of nutrient export data, created an electronic database with nutrient load data and corresponding site ...

  • Fine root distributions in oilseed and pulse crops

    Fine roots are of great importance in the uptake of water and nutrients from, and input of, carbon to the soil. This study determined the proportion of extra fine ( ...

  • Enriching African soils key to boosting crop yields

    In African countries where farmers have access and can afford to buy fertiliser, there is a profound difference in agricultural yields, a feature in Nature notes. The red soil found across much of the continent is low in organic matter and key nutrients, and intensive farming in ...


    By SciDev.Net

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