fertilizer Articles
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Long-term fertilization influences on clay mineral composition and Ammonium adsorption in a Rice Paddy soil
Increasing NH4+ adsorption can be an effective alternative in building an available N pool in soils to optimize crop recovery and minimize losses into the environment. We hypothesized that long-term fertilization may change NH4+ adsorption due to changes in the chemical and mineralogical properties of a rice (Oryza sativa L.) paddy soil. The objectives of this study were (i) to determine clay ...
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Uptake of point source depleted 15n fertilizer by neighboring corn plants
Ground-based active (self-illuminating) sensors make it possible to collect canopy data that are useful for making on-the-go N fertilizer application decisions. These technologies raise questions about plant-to-plant competition for targeted fertilizer N applications. This study evaluated the extent to which fertilizer N applied to an individual corn (Zea mays L.) plant might be intercepted by ...
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Many Countries Reaching Diminishing Returns in Fertilizer Use
When German chemist Justus von Liebig demonstrated in 1847 that the major nutrients that plants removed from the soil could be applied in mineral form, he set the stage for the development of the fertilizer industry and a huge jump in world food production a century later. Growth in food production during the nineteenth century came primarily from expanding cultivated area. It was not until the ...
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Processing organic fertilizer by using crop straw
The crop straw organic fertilizer production line is advanced composting fermentation process, inoculates high-speed and high-efficiency fermentation bacteria, which makes the straw cellulose rapidly decompose and transform, and all kinds of pathogenic bacteria, weed seeds and aphid eggs are killed, and produce the bio-organic fertilizers with strong stability and full range of nutrient. We ...
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LIVE FROM THE NCRS: Yet Another Busy Day at the NCRS
So yesterday (Wednesday Jul 22, 2015) was another busy day to take advantage of the nice weather. Like moving the wheat harvest operation over to Farm 7. OK, this is pretty lame. But you have to admit that the chrome on the back of the grain trailer is kept pretty shiny. (See what happens when you go from researcher to management!) Over in the orchard the crew is continuing the ...
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Nonstructural carbohydrate concentrations in Timothy as affected by N fertilization, stage of development, and time of cutting
Forages with increased total nonstructural carbohydrate (TNC) concentrations improve the N-use efficiency of dairy cows. This study determined the effect of time of cutting (0700 vs. 1500 h), stage of development (heading and anthesis), and N fertilization (30, 50, 70, 90, and 110 kg N ha–1 as NH4NO3) on the fermentable carbohydrate concentration of timothy (Phleum pratense L.) grown in northern ...
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Sound Advice: Meeting Corn`s Nutrient Demands
In this edition of Sound Advice, Will Llewellyn, Sales Agronomist, shares his insights on how growers can meet corn’s nutrient demand all season long. Early in the crop’s life, nutrient needs increase slowly, until corn reaches the V10 to V14 window of peak nutrient demand. By the end of that window, much of the fertilizer applied since last fall has run its course. Fertilizer ...
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From One Ag Leader to Another: Harvest
Think about this: as a farmer, you only get one shot at harvesting your crop each year. Now think about how many things have changed in the past 10 or 20 years: bigger, faster and more accurate equipment, new seed technologies, better herbicide, insecticide and fertilizer options, improved water management, precision technologies … the list goes on. The first time you tried some of these ...
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Do mixed-species legume fallows provide long-term maize yield benefit compared with monoculture legume fallows?
The deliberate planting of fast-growing N2–fixing legume monoculture species in rotation with cereal crops can be an important source of N for soil fertility replenishment. We hypothesized that mixed-species fallows have a higher potential of giving long-term residual benefits in terms of biomass, nutrients, and quality of residuals leading to long-term nutrient supply to postfallow maize (Zea ...
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An App that Supports Decision-Making and Planning
Informed decision-making leads to smarter decision-making. As Elston Solberg, Crop Intelligence’s own expert agronomist, has said before—"trust the data so you can crush the agronomy.” The data that our Crop Intelligence app provides and the support that our team offers helps you inform your planning and decision-making—both in-season and before next season. Fertility ...
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Recovery of residual fertilizer-nitrogen by wheat in a winter wheat–summer maize rotation in the north china plain: A soil column study
Cropping systems is potentially useful practice for mitigating nitrate leaching and increasing nitrogen use efficiency (NUE) because deeper rooted crops could capture the leached N from previous shallower rooted crops. The recovery of fertilizer nitrogen (FN) applied to maize (Zea mays L.) by the succeeding wheat (Triticum aestivum L.) in a winter wheat–summer maize rotation in North China Plain ...
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Nitrogen and harvest frequency effect on yield and cost for four perennial grasses
A USDOE and USDA study concluded that more than 20 million U.S. hectares of cropland, idle cropland, and cropland pasture could be converted from current uses to the production of perennial grasses from which biomass could be harvested for use as biorefinery feedstock. This study was conducted to determine the most efficient species, level of N, and harvest frequency from among four perennial ...
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Crop yield increased with the addition on Citadel Biocat+ in the digestate
Field applications evaluations of digestate from BioCat+ treated AD plants are under way in three locations in Europe. From initial results and observations it is apparent that the BioCat+ treated digestate has an improved symbiotic effect in the crop rhizosphere. Crops of wheat and maize recently harvested have shown increases in yields of up to 23% higher yields than previously achieved on the ...
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Land application of sugar beet by-products: effects on Nitrogen mineralization and crop yields
Land application of food processing wastes has become an acceptable practice because of the nutrient value of the wastes and potential cost savings in their disposal. Spoiled beets and pulp are among the main by-products generated by the sugar beet (Beta vulgaris L.) processing industry. Farmers commonly land apply these by-products at rates >224 Mg ha–1 on a fresh weight basis. However, ...
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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 ...
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Annual legumes for forage systems in the United States gulf coast region
Forage-livestock systems in the U.S. Gulf Coast are based on perennial C4 grasses. System productivity often is predicated on significant inputs of N fertilizer, but rapidly escalating fertilizer prices raise questions about the sustainability of these systems and provide impetus for legume research. There are few successful forage legumes in the region, suggesting that alternative species merit ...
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AquaCrop model simulation under different irrigation water and nitrogen strategies
On a global scale, irrigated agriculture consumes about 72% of available freshwater resources. Deficit irrigation can be applied in the field to save irrigation water and still lead to acceptable crop production. The AquaCrop model is a simulation model for management of irrigation and nitrogen fertilizer. This model is a new model that is accurate, robust and requires fewer data inputs ...
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Drones and scissors help decide fertilizer rate
Both Swedish and European field trials show that winter oilseed rape that has taken up a lot of nitrogen in autumn needs less nitrogen in the spring. A thinner crop, which has not assimilated so much nitrogen in the autumn, needs more N fertilizer in the spring. In order to determine the autumn’s nitrogen uptake, the so-called “cutting method” is often used in Sweden. Drones ...
By Solvi AB
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Composting in the Subarctic – Design
Our Ideal Design The Actium Batch Compost Drum has become an essential tool for Fort Albany First Nation’s community garden. This article details why Fort Albany First Nation needed a composter and why the design of the Actium Batch Compost Drum suited our needs. Why was a composter needed in a remote subarctic community? Fort Albany First Nation (also known as Peetabeck) is a remote and ...
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A simple spectral index using reflectance of 735 nm to assess nitrogen status of rice canopy
Spatial distribution of canopy N status is the primary information needed for precision management of N fertilizer. This study demonstrated the feasibility of a simple spectral index (SI) using the first derivative of canopy reflectance spectrum at 735 nm (dR/d|735) to assess N concentration of rice (Oryza sativa L.) plants, and then validated the applicability of a simplified imaging system ...
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