ammonium nitrate Articles | Agriculture XPRT

Simultaneous removal of ammonium and nitrate by HDTMA-modified zeolite

In this study, surfactant (hexadecyltrimethylammonium, HDTMA) modified zeolite (clinoptilolite) (SMZ) was used for simultaneous removal of ammonium and nitrate in wastewater, and the sorption properties of SMZ were determined. Results showed that natural clinoptilolite had good affinity for ammonium, but low sorption ability for nitrate, and the ammonium sorption process was well described by ...

Aug. 5, 2015

By IWA Publishing

Combined effects of bisphenol A and cadmium on growth and nitrate assimilation of soybean seedling roots

Bisphenol A (BPA) and cadmium (Cd) pollution exist simultaneously in many regions. However, little information is available regarding the combined effects of BPA and Cd pollution on plants. Plant roots are in direct contact with the soil, which is an important compartment of BPA and Cd. Here, the effects of combined BPA and Cd pollution on soybean seedling roots were evaluated in pot ...

May 25, 2014

By John Wiley & Sons, Ltd.

Effects of bisphenol A on growth and nitrogen nutrition of roots of soybean seedlings

Bisphenol A (BPA) is an environmental endocrine disruptor that seriously threatens ecological systems. Plants are the primary producers in ecological systems, but little information is available concerning the toxic effect of BPA on plants. In the present study, the effects of BPA on the growth and nitrogen nutrition of roots of soybean seedlings were investigated by using a root automatic scan ...

Oct. 25, 2012

By John Wiley & Sons, Ltd.

Effects of bisphenol a on mineral nutrition in soybean seedling roots

Bisphenol A (BPA) is a ubiquitous chemical in the environment and is potentially harmful to plants. However, relevant studies on the effects of BPA on plants are relatively scarce. In the present work, the effects of BPA on the biomass (fresh and dry weight), absorptive function (activity and absorptive area), and mineral element levels in soybean (Glycine max L.) seedling roots treated with ...

Oct. 14, 2014

By John Wiley & Sons, Ltd.

Nutrient export in run-off from an in-field cattle overwintering site in East-Central Saskatchewan

Wintering cattle directly in the field creates potential concerns with water quality, as nutrients added from urine and fecal material over the winter can end up in runoff water, ground water and soil. In 2008/2009 an experiment was conducted to observe the effect of in-field winter feeding of cows on the nutrients in spring snowmelt run-off water. Low temperatures give little opportunity for ...

Dec. 31, 2010

By IWA Publishing

Evaluation of composting performance of mixtures of chicken blood and maize stover in Harare, Zimbabwe

Background: Chicken processing results in the production of a lot of blood which if disposed on land poses environmental hazards in terms of land pollution. The aim of the study was to develop an aerobic composting process for chicken blood to produce a nitrogen-rich soil amendment for use in agriculture. The study involved composting of blood and maize stover of different proportions (10%, 30%, ...

Apr. 25, 2013

By Islamic Azad University (IAU)

Evaluation of nitrogen sources and application methods for nitrogen-rich reference plot establishment in corn

Five different N sources were compared with null N treatment to evaluate their performance for N-rich reference plot establishment in corn (Zea mays L.). The sources, including calcium ammonium nitrate (CAN), urea ammonium nitrate (UAN), polymer-coated urea (PCU) and environmentally smart nitrogen (ESN) in 2007 and 2008, and urea (URE), were broadcast or in-soil banded at the rate of 225 kg N ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

Equivalency of broiler litter to ammonium nitrate as a cotton fertilizer in an upland soil

Estimates of litter value based on crop yield equivalency to inorganic fertilization may reflect the actual value of litter more accurately than estimates based on its N, P, and K content. The primary objective of this research was to identify a rate of broiler litter that results in cotton lint yield equivalent to inorganic N fertilization and to estimate litter value based on this yield ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

Tillage and fertilizer effects on yield, profitability, and risk in a corn-wheat-potato-wheat rotation

Reduced tillage results in lower production costs and thus may have economic advantages for farmers. However, yield penalties, specific yield risks, or higher nutrient requirements may counteract the positive effects of reduced tillage. This study investigates long-term tillage effects (moldboard plow, and deep and shallow chisel plow) and their interactions with N fertilizer input on yields and ...

Nov. 29, 2009

By Soil Science Society of America (SSSA)

Green tea catechins applied to susceptible hosts inhibit parasitic plant attachment success

Parasitic plants utilize cell wall degrading enzymes (CWDEs) to penetrate their host plant and attach to host vasculature. Inhibition of CWDEs may confer resistance on susceptible hosts, offering a strategy for parasitic plant control. Here, exogenous application of green tea catechins, which inhibit pectin methylesterase (a CWDE), was used to delay parasitic plant attachment. Texas bluebonnet ...

Dec. 29, 2009

By Soil Science Society of America (SSSA)

Relationship between subsoil nitrogen availability and sugarbeet processing quality

The loss of sugar content and processing quality during the harvest period happens frequently in sugarbeet (Beta vulgaris L. ssp. vulgaris) grown in the Po Valley of Italy. The aim of this study was to assess the consequences on sugar content and quality of excess mineral N in the deep soil explored by the roots. Soil mineral N concentration and other chemical properties to a 3-m depth were ...

Dec. 31, 2009

By Soil Science Society of America (SSSA)

Cattle manure application strategies effects on bahiagrass yield, nutritive value, and phosphorus recovery

Animal manure application based on crop N requirements often leaves excess P in the soil because of the differences in the N/P ratio in manures and that required by the plants. This experiment was designed to evaluate the effects of cattle (Bos taurus) manure applied alone or in combination with ammonium nitrate (AN) on bahiagrass (Paspalum notatum Flügge) dry matter (DM) yield, nutritive value, ...

Jul. 26, 2009

By Soil Science Society of America (SSSA)

Effect of N-(n-butyl) Thiophosphoric Triamide and 3,4 Dimethylpyrazole Phosphate on gaseous emissions from grasslands under different soil water contents

The intensification of grassland systems is leading to serious environmental risks due to the large input of nitrogen (N) in fertilizers and the subsequent gaseous losses. Addition of nitrification inhibitors (NI) or urease activity inhibitors to fertilizers could reduce these losses to the atmosphere. In the present study, the effects of the nitrification inhibitor 3,4-dimethylpyrazole phosphate ...

Feb. 1, 2009

By Soil Science Society of America (SSSA)

Cattle manure application strategies effects on bahiagrass yield, nutritive value, and phosphorus recovery

Animal manure application based on crop N requirements often leaves excess P in the soil because of the differences in the N/P ratio in manures and that required by the plants. This experiment was designed to evaluate the effects of cattle (Bos taurus) manure applied alone or in combination with ammonium nitrate (AN) on bahiagrass (Paspalum notatum Flügge) dry matter (DM) yield, nutritive value, ...

Aug. 31, 2009

By Soil Science Society of America (SSSA)

Composting of selected organic wastes from peri-urban areas of Harare, Zimbabwe

the composting process of peri-urban household wastes, changes that occur during composting, and the properties of the composting products that are of importance for use as soil amendments were studied. Seven different composting mixtures were made in large piles consisting of fallen tree leaves and fresh vegetable leaves mixed with grass or maize straw (0%, 10%, 30% and 50% w/w), wastes common ...

Aug. 7, 2013

By Islamic Azad University (IAU)

Leaching of Nitrogen and Phenolics from wood waste and co-composts used for road rehabilitation

Rehabilitation and reforestation of disused forest roads and landings can be facilitated by the incorporation of organic matter. The British Columbia forest industry creates residual woody materials, but they are nutrient poor and may leach phenolic compounds. We assessed the potential for wood wastes (chipped cedar wood waste, sort-yard waste, hogfuel) and co-composts with shellfish waste or ...

Jan. 12, 2009

By Soil Science Society of America (SSSA)

Winter wheat and maize response to urea ammonium nitrate and a new urea formaldehyde polymer fertilizer

Slow release N fertilizers have potential to improve yield and nitrogen use efficiency (NUE) in winter wheat (Triticum aestivum L.) and maize (Zea mays L.). A slow release urea formaldehyde polymer (UFP) was compared with aqueous urea ammonium nitrate (UAN) [(NH2)2CO, NH4NO3] during a 2-yr field experiment in North Carolina. Crops were grown on Candor (sandy, siliceous, thermic Grossarenic ...

Jun. 10, 2007

By Soil Science Society of America (SSSA)

Dynamics of atmospheric nitrogen deposition in a temperate calcareous forest soil

In temperate forest ecosystems, soil acts as a major sink for atmospheric N deposition. A 15N labeling experiment in a hardwood forest on calcareous fluvisol was performed to study the processes involved. Low amounts of ammonium (15NH4+) or nitrate (15NO3–) were added to small plots. Soil samples were taken after periods ranging from 1 h to 1 yr. After 1 d, the litter layer retained approximately ...

Oct. 22, 2008

By Soil Science Society of America (SSSA)

Growth and nitrogen fixation in high-yielding soybean: Impact of nitrogen fertilization

In high-yielding soybean [Glycine max (L.) Merr.] environments, N uptake during seed-filling may be constrained when the late-season decline in biological nitrogen fixation (BNF) is coupled with insufficient soil N. Three N-fertilization strategies were compared with a control (N0) on soybeans in 2006 and 2007 in a high-yield soybean-maize (Zea mays L.) rotation experiment established in 1999. ...

Jul. 17, 2009

By Soil Science Society of America (SSSA)

Nitrogen source and rate effects on the establishment of ‘TifSport’ and ‘Tifway’ hybrid bermudagrass

In the southeast United States, the most popular vegetatively propagated hybrid bermudagrass (Cynodon dactylon x C. transvaalensis Pers. L.) has long been the cultivar Tifway. In recent years, however, southern turf managers choosing cultivars for lawns, golf course fairways, or athletic fields have a newer option: ‘TifSport’ hybrid bermudagrass, also a vegetative selection. Although the use of ...

Mar. 16, 2009

By Soil Science Society of America (SSSA)

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