agriculture nitrogen Articles
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Reducing agricultural nitrogen inputs in the German Baltic Sea catchment – trends and policy options
We depict recent agricultural nitrogen input and future loads to be expected in 2021 in the German Baltic Sea catchment to assess the feasibility of reaching water quality targets defined by the Marine Strategy Framework Directive (MSFD). We calculate recent and future nitrogen balances from agriculture by applying an interdisciplinary modelling system, also considering the effects of the ...
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Are agricultural chemicals affecting our water?
With the rate at which modern towns and cities expand it’s inevitable that the volume of separation between agricultural facilities and highly populated areas is shrinking. The loss of these areas can have a lasting impact, particularly when it comes to our water supplies. From an increase in water treatment prices to potentially dangerous levels of nitrogen, agricultural facilities ...
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A dynamic analysis of nonpoint pollution control instruments in agriculture
Nonpoint pollution from agriculture is an emerging issue in the environmental policy of the European Union. Dynamic optimisation techniques are important in nonpoint pollution, and neglect of dynamic aspects may seriously mislead the proper design of policy measures. This paper presents an empirical assessment of nitrogen pollution abatement in the Ebro basin of northeastern Spain. The aim is to ...
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Evaluating cumulative effects of anthropogenic inputs in Prince Edward Island estuaries using the mummichog (Fundulus heteroclitus)
Estuarine eutrophication as a result of agricultural land use including the use of chemical fertilizers is increasing worldwide. Prince Edward Island, Canada has very high agricultural intensity by international standards with approximately 44% of the land area under production, and some watersheds in excess of 75% agricultural land‐use. The type of agriculture is also intensive with primarily ...
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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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N-(N-butyl)thiophosphoric triamide/NBPT
Urease inhibitor is a kind of substance that can inhibit the activity of soil urease, and it is a new technology which has been studied in urea or nitrogen compound fertilizer. Using soil urease inhibitor can effectively slow decomposition of urea into ammonia process, reduce soil NH4 + and NH3 concentration, soil fertility and crop fertilizer synchronization. NBPT is the most effective inhibitor ...
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N-(N-butyl) Thiophosphoric Triamide Solution
N-Butylthiophosphoric triamide (NBPT, hereinafter referred to as "NBPT") is currently one of the most effective soil urease inhibitors. Agricultural fertilizers, mainly nitrogen fertilizers, are quickly decomposed by urease in the soil under normal use. This not only wastes a lot of nitrogen fertilizer resources, but also increases the cost of crop production, and brings a series of problems such ...
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Recycling of raw corn cob residues as an agricultural waste material for ammonium removal: kinetics, isotherms, and mechanisms
Corn cob is an agricultural by-product worldwide available in large amounts. In this study, the potential of raw corn cob as a natural lignocellulosic waste material of no economic value was investigated for the removal of ammonium ions from aqueous solution. Sorption capacities of raw granular corn cob (GCC) for ammonium ions were evaluated in simulated and actual wastewater samples. The FT-IR ...
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Evaluating the effect of climate variation on the cost efficiency of a crop permit policy in Southern Sweden
Current international agreements call for a significant reduction of nitrogen loads to the Baltic Sea. New measures to reduce nitrogen loads from the agricultural sector and an increased focus on cost efficiency will be needed to meet reduction targets. For policy design and evaluation it is important to understand the impact of weather on the efficiency of abatement measures. One new proposed ...
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The nitrogen balance for Catalan agriculture soils and livestock sectors
A comprehensive assessment of nitrogen metabolism in Catalonia (NE region of Spain) has been performed by the method of Substance Flow Analysis (SFA). Being agriculture soils and livestock sectors where the human food production stands, this paper is focused in the analysis of nitrogen dynamics in these sectors. Groundwater contamination, nitrogen accumulation in transition reservoirs (landfills, ...
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Controlling Nitrogen with Clinoptilolite
With skyrocketing prices on the fertilizer market, and record high contamination levels in runoff from soil leaching, solutions for fixing nutrients in the root zone are of paramount importance. The price of nitrogen fertilizer is always in flux, but as of recently there is a distinct and obvious spike. Fertilizer prices are on the rise. Meanwhile the broad use of fertilizer in agriculture has ...
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Model forecasts long-term impacts of forest land-use decisions
The drive to develop crops for use as biofuel, continues to raise questions about additional uses of forest land. A cutting edge computer model developed at North Carolina State University offers detailed insight to predict the environmental impact – along with understanding forest ecosystem response to global climate change. “We think the model will help policy makers and forest ...
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Pond fertilization / Aquaculture
Just as fish need good water quality conditions to thrive, they also need an abundant supply of food to grow. We can provide food for our fish in two different ways: We can give them “artificial” feeds that are prepared either commercially or at home, or we can ensure that they have an abundance of natural foods by using fertilizers to increase pond productivity. In either case, it is ...
By Fishward
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Soil Nutrients and Field Health: what you Need to Know
The soil on your field is like the brain to your body. It tells your crops everything they need to know to produce a healthy yield; how many organisms live there, what the pH balance is, whether or not something is performing well… For the brain, if something isn’t performing well, the body can react catastrophically. The same thing happens with soil. If you have too much ...
By Growers
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Types Of Soil Sensor-Which Is Best For You
What is soil sensor? Soil sensors are instruments monitor soil moisture conditions. They can be categorized into sensors that monitor moisture, conductivity, temperature, nutrients, pH, and salinity. All these different types of instruments are collectively referred to as soil sensors. With advancements in technology, there are now more advanced soil sensors available that can simultaneously ...
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