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Inhibitory effects of fungicides on hydrolysis of urea and nitrification of urea nitrogen in soil


, : Inhibitory effects of fungicides on hydrolysis of urea and nitrification of urea nitrogen in soil. Pesticide Science 49(4): 344-352

The influence of 1 and 50 mg active ingredient (AI) kg-1 soil of 17 fungicides on transformations of urea nitrogen in soil was studied by determining the amounts of urea hydrolysed and the amounts of nitrate and nitrite produced when samples of two coarse-textured and two fine-textured soils were incubated aerobically for various times after treatment with urea. When applied at the rate of 1 mg AI kg-1 soil, anilazine, benomyl, captan, chloranil, mancozeb and thiram retarded urea hydrolysis in the two coarse-textured soils and maneb retarded urea hydrolysis in all four of the soils used. Most of the fungicides tested retarded nitrification of urea nitrogen in the two coarse-textured soils when applied at the rate of 1 mg AI kg-1 soil, but only etridiazole markedly retarded nitrification of urea nitrogen in all of the soils used when applied at this rate. When the fungicides were applied at the rate of 50 mg AI kg-1 soil, anilazine, captan, chloranil, fenaminosulf, folpet, maneb, mancozeb and thiram retarded urea hydrolysis in the four soils studied, and all fungicides tested except chloroneb, fenarimol and iprodione retarded nitrification of urea nitrogen in these soils. One-way analysis of variance and correlation analyses indicated that the inhibitory effects of the 17 fungicides tested on nitrification of urea nitrogen in soil increased with decrease in the organic-matter content and increase in the sand content of the soil.

US$19.90

DOI: 10.1002/(sici)1096-9063(199704)49:4<344::aid-ps538>3.0.co;2-d


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Ballinger, M.D.; Jones, J.T.; Lofgren, J.A.; Fairbrother, W.J.; Akita, R.W.; Sliwkowski, M.X.; Wells, J.A., 1998: Selection of heregulin variants having higher affinity for the ErbB3 receptor by monovalent phage display. Heregulins (HRGs) are epidermal growth factor (egf) domain containing polypeptide growth factors that bind and activate several members of the ErbB receptor family. Although HRG can bind to ErbB3 and ErbB4 homodimers, the highest affinity and most...

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Flores, B.S.ndy; Siddall, M.E.; Burreson, E., 1996: Phylogeny of the haplosporidia based on small subunit ribosomal RNA gene sequence. The phylogenetic position of the phylum Haplosporidia was investigated with the complete small subunit rRNA gene sequences from 5 species in the phylum: Haplosporidium nelsoni and Haplosporidium costale, parasites of the eastern oyster Crassostrea...

Alexandrov V.A., 1973: Embryo toxic and teratogenic effects of chemical carcinogens. Tomatis, L And U Mohr (Ed ) International Agency For Research on Cancer Scientific Publications, No 4 Transplacental Carcinogenesis Proceedings Of A Meeting Hannover, West Germany, Oct 6-7, 1971 Xiii+180p Illus International Agency For Research on Cancer: Lyon, France 112-126

Klein, RG., 1984: Excavations at Fairview Rock Shelter - a contribution to the prehistory of the eastern Cape Province of South Africa. Appendix 1: the remains of larger mammals from Fairview Shelter. Annals of the Cape Provincial Museums Human Sciences, 13: 82-86

Hanek G.; Fernando C.H., 1971: Monogenetic trematodes from the bay of quinte area ontario part 2 genus gyrodactylus. Canadian Journal of Zoology 49(10): 1331-1341

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Hably L., 1981: The possibilities of quantitative evaluation in paleontology presented on some upper oligocene floras. Research on recent biocoenoses has resulted in increasing numbers of equations permitting the mathematical expression of characteristics of floras or faunas. These can be divided into 2 groups: semi-quantitative figures, referring only to species...

Garrison, W.M.; Jayko, M.E.; Bennett, C.Rniea, W., 1964: Radiation-Chemical Oxidation Of Peptides In The Solid State. Gamma-ray irradiation of polypeptides as highly dispersed fluffs under oxygen leads to chemical degradation of the peptide bond with the remarkably high oxygen consumption of about one molecule per 2 ev of absorbed energy. A radical chain mechanis...

Plamondon, S.; Dent, P.B., 2000: Juvenile amyopathic dermatomyositis: results of a case finding descriptive survey. Objective: To review the clinical features of juvenile amyopathic dermatomyositis (ADM) to define an appropriate approach to its diagnosis and management. Methods: Based on a review of published adult and pediatric cases, a prevalidated, peer revi...