Publication Date
1997
Description
Soil microbial biomass nitrogen (BN ) was periodically measured in two pastures a) grazed pastures without N fertilizer and b) grazed pastures receiving 200 kg of fertilizer N per year, respectively, during July 1993 to July 1994. Soil type was a volcanic soil Medial, thermic, Typic Distrandept. BN was highly variable and the two type of pastures showed a similar pattern of distribution, with statistical differences in only three sampling. Values of BN were lower than that found in other studies of temperate regions, but also the BN was significantly higher than the available pool of mineral N, indicating the importance of the BN as a component of N cycle, and as a mediator in the transformation of N between the mineral and organic pools.
Citation
Ruz, R; Troncoso, H; Longeri, L; Jahn, E; and Vidal, I, "Changes in Soil Microbial Biomass-N Under Ryegrass/White Clover Grazed Pastures Based on Symbiotic N Fixation and Fertilizer N" (2024). IGC Proceedings (1997-2023). 2.
https://uknowledge.uky.edu/igc/1997/session11/2
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Changes in Soil Microbial Biomass-N Under Ryegrass/White Clover Grazed Pastures Based on Symbiotic N Fixation and Fertilizer N
Soil microbial biomass nitrogen (BN ) was periodically measured in two pastures a) grazed pastures without N fertilizer and b) grazed pastures receiving 200 kg of fertilizer N per year, respectively, during July 1993 to July 1994. Soil type was a volcanic soil Medial, thermic, Typic Distrandept. BN was highly variable and the two type of pastures showed a similar pattern of distribution, with statistical differences in only three sampling. Values of BN were lower than that found in other studies of temperate regions, but also the BN was significantly higher than the available pool of mineral N, indicating the importance of the BN as a component of N cycle, and as a mediator in the transformation of N between the mineral and organic pools.
