Comparative Evaluation of Nitrogen Release Patterns from Controlled-release Fertilizers by Nitrogen Leaching Analysis
نویسندگان
چکیده
منابع مشابه
A Novel Function of Controlled-Release Nitrogen Fertilizers
Nitrogen is the most important essential nutrient that plays a major role in achieving maximum crop yield in agriculture. Therefore, nitrogen fertilizers such as ammonium sulfate and urea have been extensively used in modern agriculture. These fertilizers are generally oxidized to nitrate via nitrite by nitrifying microorganisms in the agricultural field (4, 10, 11). The serious environmental p...
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Kinetics of nitrogen release by Daphnia mugna (0.2-0.4 mg dry wt) and Daphnia pulex (ca. 0.03 mg dry wt) were followed by measuring ammonium (plus primary amines) in water flowing past individual animals. Culture media water was pumped slowly (6 ml *h-l) through an incubation chamber (volume 0.05 ml) containing a daphnid and then either mixed with o-phthalaldehyde reagent for continuous analysi...
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Controlledrelease fertilizers (CRFs) offer an excellent option to improve nutrients uptake by plants and reduce the environmental hazards due to excess release of chemicals. Polymer-coated fertilizers, compared to the other types of CRF, are by far the most intensively researched topic because of their great characteristics. Polymercoated fertilizers, which are less sensitive to the soil and en...
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ژورنال
عنوان ژورنال: HortScience
سال: 1997
ISSN: 0018-5345,2327-9834
DOI: 10.21273/hortsci.32.4.669