Nitrogen Availability from Potato-Processing Wastewater for Growing Corn

Nitrogen Availability from Potato-Processing Wastewater for Growing Corn

A line source sprinkler was used to irrigate corn (Zen ?nays L.) plots with potato (Soianum tuberosum L.)-processing wastewater in 1979, 1980, and 1981. Nitrogen applications ranged from about 4 to 600 kg/ha. Corn yields were measured for each row, the grain and stalks were analyzed for total N, and N uptake was calculated. The plots were split by years, one-third of the area was fertilized wit...

Hydropedological processes and their implications for nitrogen availability to corn

Lipid and gamma-linolenic acid production by two oleaginous fungi from potato processing wastewater

This study examined the utilization of potato processing wastewater as the feedstock by two oleaginous fungi, Aspergillus flavus I16-3 and Mucor rouxii, for lipid and gamma linolenic acid production. The high strength wastewater contained soluble carbohydrates of 36.2 g/l, soluble chemical oxygen demand (COD) of 40 g/l, total soluble nitrogen of 0.62 g/l, and soluble total phosphorus of 0.24 g/...

Predicting nitrogen fertilizer requirements for corn by chlorophyll meter under different N availability conditions

Rashid, M. T., Voroney, P. and Parkin, G. 2005. Predicting nitrogen fertilizer requirements for corn by chlorophyll meter under different N availability conditions. Can. J. Soil Sci. 85: 149–159. Nitrogen management strategies that enhance fertilizer use efficiency and maximize profitability in corn require a rapid and accurate method to determine the crop N needs of current hybrids. The object...

Minimizing Nitrogen Discharges from Onsite Wastewater Systems

educing the amount of nitrogen released from onsite wastewater systems has become a controversial issue in certain parts of the country. In some locales, property owners are being encouraged or even required to add nitrogenreducing systems to new and existing septic systems. This Pipeline explores why controlling nitrogen is an issue and how the units work. Before discussing how nitrogen treatm...