ICAR Research Data Repository for Knowledge Management
Effects of parathion and malathion on transformations of urea and ammonium sulfate nitrogen in soils
OAR@ICRISAT
View Archive Info| Field | Value | |
| Relation |
http://oar.icrisat.org/3984/
http://dx.doi.org/10.1007/BF02181874 |
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| Title |
Effects of parathion and malathion on transformations of urea and ammonium sulfate nitrogen in soils
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| Creator |
Sahrawat, K L
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| Subject |
Soil Science
Fertilizer Appications |
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| Description |
A study of the effects of malathion and parathion applied at 10 and 50 g/g of soil on transformations of urea and (NH4)2SO4–N in a sandy loam showed that the insecticides retarded urea hydrolysis as well as nitrification of urea and (NH4)2SO4–N. At 50 parts/106 rate of the insecticides, inhibition of urea hydrolysis ranged from 44 to 61% after 0.5 week and from 7 to 21% after 3 weeks of application. The insecticides inhibited the conversion of NH4 + to NO2 – without appreciably affecting the subsequent oxidation of NO2 – to NO3 – –N. This resulted in accumulation of higher amounts of NH4 +–N in soil samples treated with ammonium sulfate or urea N. The results suggest that transformations of urea and NH4 + fertilizers in soils may be influenced by the amount of organophosphorus insecticide present and this may affect plant nutrition and fertilizer use. |
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| Publisher |
Kluwer
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| Date |
1979
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| Type |
Article
PeerReviewed |
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| Format |
application/pdf
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| Language |
en
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| Rights |
—
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| Identifier |
http://oar.icrisat.org/3984/1/Plant_and_Soil_53_11-16_1979.pdf
Sahrawat, K L (1979) Effects of parathion and malathion on transformations of urea and ammonium sulfate nitrogen in soils. Plant and Soil, 53 (1-2). pp. 11-16. ISSN 0032-079X |
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