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Nitrification in some tropical soils

OAR@ICRISAT

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Relation http://oar.icrisat.org/3995/
http://dx.doi.org/10.1007/BF02374659
 
Title Nitrification in some tropical soils
 
Creator Sahrawat, K L
 
Subject Soil Science
 
Description Nitrification of soil N in 8 mineral and 2 histosols having a wide range in pH (3.4 to 8.6), organic C (1.22 to 22.70%) and total N (0.09 to 1.20%) was studied by measuring nitrate fromation under aerobic incubation of the soil samples at 30°C for 4 weeks. The amounts of NO3-N produced in the soils varied from 0 to 123 μg/g of soil. Soil N in the two acid sulfate soils and one other acid soil did not nitrify under conditions that stimulate nitrification. Soils having pH more than 6.0 nitrified at a rapid rate and released NO3-N ranging from 98 to 123 μg/g. The two organic soils differed considerably in their capacity to nitrify though the total amounts of mineral N released were similar in these soils. The amounts of NO3-N formed in the soils was highly positively correlated with the soil pH but was not significantly correlated with the organic C of total N content of the soils. Statistical analysis also showed that nitrate formation was not significantly correlated with soil pH in soils having pH higher than 6.0.
 
Publisher Kluwer
 
Date 1982
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
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Identifier http://oar.icrisat.org/3995/1/Plant_and_Soil_65_281-286_1982.pdf
Sahrawat, K L (1982) Nitrification in some tropical soils. Plant and Soil, 65 (2). pp. 281-286. ISSN 0032-079X