manure ammonia Articles
-
Removal and recovery of ammonia from chicken manure
The feasibility of the conversion of organic nitrogen available in raw chicken manure (CM) into ammonia via hydrolysis and the removal of ammonia from anaerobically digested manure were evaluated in this study. Firstly, the hydrolysis experiments were performed and the effects of temperature, total solids (TS) content and retention time were investigated. The results showed that 90% of the ...
-
Nitrogen losses from dairy manure estimated through nitrogen mass balance and chemical markers
Received for publication February 13, 2009. Ammonia is an important air and water pollutant, but the spatial variation in its concentrations presents technical difficulties in accurate determination of ammonia emissions from animal feeding operations. The objectives of this study were to investigate the relationship between ammonia volatilization and 15N of dairy manure and the feasibility of ...
-
Cover crop effects on the fate of N following soil application of swine manure
Abstract Cereal grain cover crops increase surface cover, anchor corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] residues, increase infiltration, reduce both rill and interrill erosion, scavenge excess nutrients from the soil, and are easily obtained and inexpensive compared to other cover crop options. The use of cereal grain cover crops in fields where manure application occurs ...
-
Acidification of slurry in barns, stores and during application: review of Danish research, trials and experience
Abstract Acidification is recognised as a method for reduction of ammonia volatilisation of manure. During the last two to three years acidification of slurry has become common in Denmark. In 2012 it has been estimated that about 11 % of all applied slurry in Denmark was acidified, and in 2013 it is expected that up to 20 % will be acidified. In all cases sulphuric acid is used for acidification, ...
By Biocover A/S
-
Enhancing soil infiltration reduces gaseous emissions and improves n uptake from applied dairy slurry
Rapid infiltration of liquid manure into the soil reduces emissions of ammonia (NH3) into the atmosphere. This study was undertaken to assess the effects of two low-cost methods of assisting infiltration of applied dairy slurry on emissions of NH3, nitrous oxide (N2O), and on crop N uptake. The two methods were removing of solids by settling-decantation to make the manure less viscous and ...
-
Effects of reducing dietary nitrogen on ammonia emissions from manure on the floor of a naturally ventilated free stall dairy barn at low (0–20°C) temperatures
Received for publication December 30, 2008. This study was conducted to determine the potential for reducing ammonia (NH3) emissions from manure deposited on the floor of a naturally ventilated free stall barn by mid-lactation dairy cows fed reduced or normal N diets. Two crude protein (CP) diets (178 g kg–1 [high] and 159 g kg–1 [low] dry matter ), were used. The diets were fed to 48 Holstein ...
-
Effect of tillage and nitrogen rate on corn yield and nitrogen and phosphorus uptake in a corn-soybean rotation
Understanding tillage, N, and P interactions can contribute to improved N and P utilization and crop response. This study examined the interaction effects of tillage and N rate of two N sources on N and P uptake by corn (Zea mays L.). The study was conducted on Kenyon loam (fine loamy, mixed, mesic Typic Hapludolls) soil at the Iowa State University Northeast Research and Demonstration Farm near ...
-
Unlocking the potential of poultry manure
The poultry industry is one of the largest and fastest-growing agro-based industries in the world. At the same time, the growth brings along a number of environmental problems. One of the major environmental problems is the accumulation of large amounts of wastes, e.g. manure. In order to mitigate these problems new economically sustainable technologies are needed. Manure has often been referred ...
By Ductor Corp.
-
Application of Biochar in Poultry Farming
In the ever-evolving landscape of sustainable agricultural practices, biochar emerges as a promising contender, offering a multitude of benefits to poultry farming operations worldwide. Derived from the biomass pyrolysis process, biochar is a carbon-rich substance renowned for its capacity to enhance soil health, improve nutrient retention, and mitigate environmental degradation. Its application ...
Need help finding the right suppliers? Try XPRT Sourcing. Let the XPRTs do the work for you