MOVEMENT OF FALL-APPLIED NITROGEN IN SANDY SOIL
نویسندگان
چکیده
منابع مشابه
Nitrogen mineralization potential of three animal manures applied on a sandy clay loam soil.
Understanding the dynamics of N forms applied as manure is germane for appropriate rate and timing of applications of manure. Manure characterization and laboratory incubation were conducted for 120 days to study the mineralization of poultry, cattle and goat manures. Results showed that manure properties differ. Net immobilization of N was recorded for goat and cattle manures while poultry man...
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Groundwater contamination is an ever-increasing concern on a national level as well as locally. Increasing amounts of nitrate-nitrogen (NO3-N) being delivered by rivers, including the Mississippi, have resulted in an oxygen-depleted area or hypoxic zone in the Gulf of Mexico. (Turner and Rabalais, 1994b). This nutrient loading has caused nitrogen-limited phytoplankton to bloom. Decom-position o...
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Movement of poliovirus I (Chat) through nonsterile core samples of a sandy forest soil was monitored, using several regimens of loading with either dechlorinated final effluent from an operating activated sludge treatment plant or distilled water. Stimulated cycles of rainfall and effluent applications, resulting in ionic gradients, were shown to affect virus movement. Such studies indicate tha...
متن کاملSoil pH Effects on Nitrification of Fall-Applied Anhydrous Ammonia
November or before April because soils either are frozen or too wet. Soil temperature at the time of application has been the primary It has been recommended that fall applications of N factor used to predict rates of nitrification and assess the risks associbe delayed until soil temperature has decreased to 10 C ated with losses of N applied in the fall as anhydrous ammonia in the at a depth o...
متن کاملMeasurement and Computation of Movement of Bromide Ions and Carbofuran in Ridged Humic-Sandy Soil
Water flow and pesticide transport in the soil of fields with ridges and furrows may be more complex than in the soil of more level fields. Prior to crop emergence, the tracer bromide ion and the insecticide carbofuran were sprayed on the humic-sandy soil of a potato field with ridges and furrows. Rainfall was supplemented by sprinkler irrigation. The distribution of the substances in the soil ...
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ژورنال
عنوان ژورنال: Canadian Journal of Soil Science
سال: 1968
ISSN: 0008-4271,1918-1841
DOI: 10.4141/cjss68-049