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Struvite Crystallization of Anaerobic Digestive Fluid of Swine Manure Containing Highly Concentrated Nitrogen
Struvite Anaerobic Digestive Fluid Swine Manure
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2016/5/18
In this study, the optimal operation factors for struvite crystallization for removing and recovering nitrogen and phosphorus from anaerobic digestive fluid of swine manure containing highly concentra...
Effect of agricultural lands afforestation and tree species composition on the soil reaction, total organic carbon and nitrogen content in the uppermost mineral soil profile
acidification afforestation carbon nitrogen soil reaction
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2015/3/10
Forests occupy one third of the world’s land area and govern carbon (C) transfers and influence nitrogen (N) content in the biosphere. Afforestation leads to soil changes of specific dynamics, often a...
Effects of highly volatile organochlorine solvents on nitrogen metabolism and microbial counts
microbial counts soil nitrogen cycle tetrachloroethylene 1,1,1-trichloroethane trichloroethylene
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2015/3/5
The effects of highly volatile organochlorine solvents (1,1,1-trichloroethane, TCET; trichloroethylene, TCE; and tetrachloroethylene, PCE) on soil nitrogen cycle and microbial counts were investigated...
The Changes of Soil Mineral Nitrogen Observed on Farms between Autumn and Spring and Modelled with a Simple Leaching Equation
Soil Mineral Nitrogen Observed Farm
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2015/3/1
The content of nitrate or mineral nitrogen (Nmin = N-NO3
–
+ N-NH4
+
) in soil in autumn is recognized as
the indicator of potential risk of N leaching during winter
Stand heterogeneity of total carbon and nitrogen, and C/N ratio in soil of mountain meadows
carbon nitrogen C/N ratio mountain meadow
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2015/1/30
This study was aimed at monitoring the relative and absolute stand heterogeneity of total carbon, total nitrogen and C/N ratio in Ah-Ae-Btg-Bt horizons of Gleyic Luvisol on one mountain meadow divided...
Developing an Efficient Cover Cropping System for Maximum Nitrogen Recovery in Massachusetts
automated lysimeter corn silage gepgraphical information system Nitrogen management rye winter cover crop soil water sampler
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2014/11/4
Time of planting plays a critical role in nitrogen (N) uptake by rye cover crop (CC). Even a few days of delay in planting can severely decrease CC performance. Evaluating the amount of N accumulation...
Impact of the size of nitrogen fertiliser application rate on N2O flux
nitrous oxide soil emissions fertilising fertiliser spreader
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2014/3/28
The application rate of a nitrogen fertiliser is one of the most important factors that affect the nitrous oxide (N2O) flux. Calk ammonium nitrate with 27% nitrogen content was spread by a fertiliser ...
Response of different corn populations to fertigated nitrogen and certain micronutrients in sandy soil
Fertigation Micronutrients Plant Density Sandy Soil
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2013/3/4
A field study was conducted during 2008 and 2009 at El-Khattara farm station, Zagazig Uni-versity, Sharkyia, Egypt (30°36' N, 32°15' E) to determine the effect of three N rates (214, 273, and 333 kg N...
Effects of different levels of compost application on amounts and distribution of organic nitrogen forms in soil particle size fractions subjected mainly to double cropping
Compost Application Upland and Paddy Fields Soil Organic N Forms Size Fractions
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2013/3/4
Effects of different levels of compost application on the amounts and percentage distribution of organic N forms in whole soils and particle size fractions were investigated. Soil samples were collect...
Assessment of soil quality using soil organic carbon and total nitrogen and microbial properties in tropical agroecosystems
Agroecosystems Microbial Biomass Soil Organic Carbon Soil Total Nitrogen Tropical
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2013/3/4
Assessment of soil quality is an invaluable tool in determining the sustainability and environmental impact of agricultural ecosystems. The study was conducted to assess the quality of the soils under...
Mineralization of nitrogen from 15N labeled crop residues at varying temperature and clay content
Rice and wheat residues straw N-mineralization immobilization
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2011/2/22
A laboratory incubation experiment was carried out for 85 days to monitor the N mineralization during the decomposition of 15N labeled wheat and rice straws incorporated at 5 g kg-1 soil at varying te...
Nitrogen Dynamics of Organic Materials Applied to Paddy Fields: Direct Evaluation Using Organic Materials Labeled with Nitrogen-15
compost manure nitrogen use efficiency plant residue rice
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2011/2/24
In this study, 15N-labeled organic materials were used to evaluate the nitrogen (N) dynamics associated with the application of organic materials to paddy fields. The decomposition of three types of o...
Effect of soil nitrogen levels on some micronutrients, antinutrients and toxic substances in Corchorus olitorius grown in Minna, Nigeria
Corchorus olitorius nitrogen level antinutrients toxic substances
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2011/1/13
The nature of soil type is an important factor in the bioaccumulation of substances in plants. Application of nitrogen fertilizer is a common practice in vegetable farming. This study was therefore co...
Rice yield, nitrogen utilization and ammonia volatilization as influenced by modified rice cultivation at varying nitrogen rates
Ammonia Volatilization N Use Efficiency Paddy Soil
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2013/3/5
Field experiments were conducted in 2006 to investigate the impacts of modified rice cultivation systems on: grain yield, N uptake, ammonia volatilization from rice soil and N use efficiency (ANUE, ag...
The effect of nitrogen and phosphorus fertilization on yield, some fruit characteristics, hormone concentrations, and alternate bearing in pistachio
Alternate bearing fertilization GA3 IAA nut weight Pistacia vera L.
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2010/2/24
This research was carried out in order to determine the effects of nitrogen and phosphorus fertilization on yield, some fruit characteristics, hormone concentrations, and alternate bearing in pistachi...