Journal ArticleDOI
Toxic Effect of Urea on Plants: Nitrite Toxicity arising from the Use of Urea as a Fertilizer
TLDR
Toxic Effect of Urea on Plants: Nitrite Toxicity arising from the Use of urea as a Fertilizer as discussed by the authors, which is the most commonly used Urea-based fertilizer.Abstract:
Toxic Effect of Urea on Plants: Nitrite Toxicity arising from the Use of Urea as a Fertilizerread more
Citations
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Journal ArticleDOI
Apoplastic Synthesis of Nitric Oxide by Plant Tissues
TL;DR: The data presented in this report strongly support the hypothesis that plant tissues also synthesize NO via the nonenzymatic reduction of apoplastic nitrite and may have possible significance for germinating grain and for plant roots.
Book ChapterDOI
Volatilization Losses of Nitrogen as Ammonia from Surface-Applied Fertilizers, Organic Amendments, and Crop Residues
Abstract: Publisher Summary Loss of nitrogen (N) as NH 3 from applied fertilizers, organic amendments, and crop residues is only one of several possible fates of soil and applied N. Leaching losses of N, largely as nitrate (NO 3 –N), may be severe on sandy, gravelly, or lateritic soils under conditions of heavy rainfall or excessive irrigation. This chapter reviews the research results on NH 3 volatile losses from applied N fertilizers and examines the impact of greater use of urea N. The chapter discusses the losses of NH 3 from crop residues, applied manures, and other organic amendments. Techniques for measuring N volatilization losses directly as NH 3 and indirectly by measuring crop uptake of applied N. NH 3 absorption by soils and vegetation are also discussed in the chapter. Research results have shown that NH 3 –N losses from fertilizers surface-applied to moist soils increase with intensity of drying conditions and with decrease in soil sorption capacity for NH 4 –N. Results from laboratory, greenhouse pot, and field plot experiments agree, in general, concerning the various factors contributing to NH 3 –N losses.
Book ChapterDOI
Nitrogen Management for Maximum Efficiency and Minimum Pollution
TL;DR: In this article, the authors consider the impacts of N in the environment and examine various management systems for conservation of N (and hence minimization of pollution) in agro-ecosysterns.
Journal ArticleDOI
Recent research on problems in the use of urea as a nitrogen fertilizer
TL;DR: In this paper, the adverse effects of urea fertilizers on seed germination and seedling growth in soil are due to NH3 produced through hydrolysis of Urea by soil urease and can be eliminated by addition of a urea inhibitor to these fertilizers.
References
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Journal ArticleDOI
A Method for Measuring Short-Term Nutrient Absorption by Plants: I. Phosphorus
George Stanford,Jack D. DeMent +1 more
TL;DR: In this article, a method was devised which permits measurement of P absorption by plants during relatively short periods of root-soil contact, where plants are grown without added P in sand during which time a mat of roots develops at the bottom of the container and the exposed root mat with plants intact is then placed in contact with the soil or soil-fertilizer system.
Journal ArticleDOI
The Germination of Small Grain and Corn as Influenced by Urea and Other Nitrogenous Fertilizers
TL;DR: In this article, the use of urea was compared to other fertilizers, including ammonium sulfate, ammonium hydroxide, and ammonium carbonate, in a greenhouse germination trial.
Related Papers (5)
Field and Laboratory Studies of Nitrite Accumulation in Soils1, 2
H. D. Chapman,George F. Liebig +1 more