2017
DOI: 10.1371/journal.pone.0171022
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Evaluation and simulation of nitrogen mineralization of paddy soils in Mollisols area of Northeast China under waterlogged incubation

Abstract: BackgroundUnderstanding the nitrogen (N) mineralization process and applying appropriate model simulation are key factors in evaluating N mineralization. However, there are few studies of the N mineralization characteristics of paddy soils in Mollisols area of Northeast China.Materials and methodsThe soils were sampled from the counties of Qingan and Huachuan, which were located in Mollisols area of Northeast China. The sample soil was incubated under waterlogged at 30°C in a controlled temperature cabinet for… Show more

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Cited by 17 publications
(17 citation statements)
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“…Thus the responses of MBN to N depositions are inconclusive and need more studies to conclude. Therefore, the feedbacks of MBN to the atmospheric-N depositions from diverse ecosystems need urgent study for predicting its impact on the soil health and global N cycling 33 .…”
mentioning
confidence: 99%
“…Thus the responses of MBN to N depositions are inconclusive and need more studies to conclude. Therefore, the feedbacks of MBN to the atmospheric-N depositions from diverse ecosystems need urgent study for predicting its impact on the soil health and global N cycling 33 .…”
mentioning
confidence: 99%
“…(iii)Processes of ion generation and degradation, for instant, the mineralization and denitrification processes taking place under the microbial activities, also affected the variation of the soil EC. These processes occurring in fertilizers are first-order reactions (Zhang et al 2017;Friedman 1997) and are characterized by the parameter of K in Eq. (4).…”
Section: Discussionmentioning
confidence: 99%
“…The amount of SON represents a relatively high proportion of the total soluble nitrogen (TSN) pool. It has been reported that SON constitutes 17-90% and 32-50% of TSN in pasture and agricultural soils, respectively [46,47,62,63]. Like in mineral N, SON dynamics are affected by mineralization, immobilization, leaching, and plant uptake, but its pool size is more constant than mineral N [64].…”
Section: Soluble Nitrogenmentioning
confidence: 99%
“…SON dynamics can be significantly affected by mineralization and immobilization during microbial growth and decomposition of organic matter. Besides that, agricultural practices such as irrigation management, fertilization, plowing, harrowing, harvesting, and the plant growth stage can also play an important role in SON dynamics [59,63]. Furthermore, high temperatures may increase the SON content by stimulating decomposition of organic matter [69].…”
Section: Soluble Nitrogenmentioning
confidence: 99%