fertilizer use Articles
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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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Important to know what`s going on in the slabs
Daily measurements of the slab by hand meter give essential information on what is going on in the slabs. This is important to confirm the readings of any fixed sensors and to show the standard deviation across the glasshouse. This data will give more potential control over the crop to increase yield and quality as well as more efficient use of water and fertilisers. The substrate manufacturer ...
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Will variable-rate nitrogen fertilization using corn canopy reflectance sensing deliver environmental benefits?
Within-field variability of corn (Zea mays L.) N need calls for development of precision fertilizer application strategies. One approach many are investigating is in-season canopy reflectance sensing. Justification for this strategy partly rests with the premise it will improve N use and reduce N loss from fields. The objective of this study was to determine the potential environmental benefits ...
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Regulating fertilizer applications in agriculture for healthier crops & environment
Farm Fertilizer - A Double-Edged Sword The excessive use of fertilizers is one of the main causes of the environmental impact of industrial agriculture. The notion that more is better has caused more harm than good to farming, as well as the environment. Therefore, using the right amount of fertilizers is considered an important part of farm management. To this end, there has been a lot of ...
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Modeling the impact of nitrate fertilizers on groundwater quality in the southern part of the Nile Delta, Egypt
The use of fertilizers in agriculture in Egypt, especially nitrogen, has increased significantly in the last decade, resulting in nonpoint contamination of the groundwater resources. This study investigated the effect of using nitrogen fertilizer on groundwater contamination with nitrate in the central southern part of the Nile Delta. NO3− concentrations in shallow groundwater were assessed ...
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Strategies to improve nitrogen use efficiency in winter cereal crops under rainfed conditions
Developing fertilizer strategies that increase nitrogen use efficiency (NUE) could reduce unnecessary input costs to farmers and environmental impact of N losses. Two field experiments were performed in northern Spain to evaluate alternative N fertilization strategies to improve NUE in winter cereal crops (wheat [Triticum aestivum L.] and barley [Hordeum vulgare L.]). The strategies were: (i) ...
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Influence of urea fertilizer placement on nitrous oxide production from a silt loam soil
Received for publication April 8, 2009. Urea placement in band or nests has been shown to enhance N use efficiency, but limited work has been done to assess its affect on N2O emissions. This study compared N2O emissions from urea prills applied to an Amsterdam silt loam (fine-silty, mixed, superactive, frigid Typic Haplustolls) using broadcast, band, and nest placements. Experiments were ...
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Advantages and precautions of NPK organic fertilizer granulator
The humus in organic fertilizer increases the content of soil organic matter, which is beneficial to the formation of good soil structure, especially the increase of water stable aggregate structure, so as to improve the tightness, aeration, water retention and heat status of soil, and has a good effect on the water, fertilizer, air and heat conditions that determine the soil fertility. It is ...
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Rice growth, grain yield, and floodwater nutrient dynamics as affected by nutrient placement method and rate
The loss of major nutrients can be high in rice (Oryza sativa L.) fields, particularly rainfed rice, where water flowing from field to field during periods of high rainfall not only reduces the nutrient use efficiencies but also has the potential for environmental degradation. We examined the influence of deep point placement of N, P, and K briquettes compared to broadcast incorporation of N, P, ...
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Production process of potassium chloride by disc granulator machine
In the production of potassium chloride granular fertilizer, fertilizer granulator can be used to granulate powder. The particles produced by disc granulator are spherical and have good strength, which can be widely used in agricultural production. Disc Pan Granulator In the granulation process of disc pan granulator, it is necessary to add a binder to make the granules shape. Binder can be ...
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Grain legumes in northern great plains
Cropping systems in the Northern Great Plains have shifted from fallow-based to legume-based systems. The introduction of grain legumes has impacted soil organisms, including both symbiotic and nonsymbiotic N-fixing bacteria, pathogens, mycorrhizae and fauna, and the processes they perform. These changes occur through effects of legume seed exudates, rhizosphere exudates, and decomposing crop ...
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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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The promotion of organic fertilizer granulator to my China's agriculture
China has been a big agricultural country since ancient times. Organic fertilizer granulator has greatly promoted agriculture, which shows the status of organic fertilizer granulator in my country. Below we introduce how the organic matter granulator works. The organic fertilizer granulator is used to granulate various organic substances after fermentation, breaking through the conventional ...
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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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How much is a set of organic fertilizer production line?
The organic fertilizer production line with an annual output of 5000 tons requires about 700m fermentation tank plant, 500m processing plant and 400m warehouse and office area. The organic fertilizer production plant cost is about 350000 to 500000 yuan. According to the different raw materials of organic fertilizer production, the organic fertilizer equipment used in the production line of ...
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What factors need to be considered when purchasing small organic fertilizer equipment?
How much does a complete set of small organic fertilizer production equipment cost? Where to find organic fertilizer equipment manufacturers? This is a consideration when purchasing fertilizer equipment. The manufacturer of Tianci fertilizer machine suggests that when purchasing equipment, you should first understand the following production problems of fertilizer equipment. 1. The establishment ...
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Characterizing and classifying variability in corn yield response to nitrogen fertilization on subfield and field scales
Marked spatial and temporal variability in yield response to N fertilizer observed in individual yield response trials creates a high degree of uncertainty when estimating economic optimum rates (EORs) of N for a group of trials and when extrapolating these rates from one location to another. A survey was conducted to characterize and classify variability in yield response to N on subfield and ...
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Characterizing and Classifying Variability in Corn Yield Response to Nitrogen Fertilization on Subfield and Field Scales
Marked spatial and temporal variability in yield response to N fertilizer observed in individual yield response trials creates a high degree of uncertainty when estimating economic optimum rates (EORs) of N for a group of trials and when extrapolating these rates from one location to another. A survey was conducted to characterize and classify variability in yield response to N on subfield and ...
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Prospect and production of coated controlled release fertilizer
Coated controlled release fertilizer The traditional chemical fertilizer, such as N or a certain proportion of N, P, K compound fertilizer, is coated with a special biological or chemical water soluble polymer film. Based on the characteristics of film thickness, particle radius, diffusion coefficient, nutrient composition and dissolution, the release rate and amount of fertilizer nutrient are ...
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Assessing long-term water quality impacts of reducing phosphorus fertilizer in a US suburban watershed
Phosphorus run-off from urban lawn care is a significant water quality concern in many US suburban communities. Many state and municipal governments in the USA adopt urban fertilizer laws or ordinances that prohibit the use of phosphorus-containing lawn fertilizers. This study assesses the long-term water-quality impacts of two phosphorus-reduction scenarios in a suburban watershed in Central ...
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