| |
Publication Type:
| Refereed |
Author(s): | Zaccheo, P.;
Crippa, L.;
Genevini, P. L. |
Author Affiliation: | Sipartinmento di Fisiologia delle Piante Coltivate e Chimica Agraria, Universita di Milano, Milano, Italia |
Title: | Nitrogen transformation in soil treated with 15N labelled dried or composted ryegrass |
Source: | Plant and Soil. Vol. 148, No. 2, January 1993, p. 193-201. |
Publishing Information: | Dordrecht, Netherland: Martinus Nijhoff Publishers |
# of Pages: | 9 |
Related Web URL: | http://link.springer.com/article/10.1007/BF00012857 Last checked: 10/14/2015 Notes: Abstract only |
Keywords: | TIC Keywords: Nitrogen; Nitrogen immobilization; Lolium; Composts; Isotopes; Mineralization
|
Abstract/Contents: | "A 5-month laboratory incubation experiment was conducted to study the immobiliztion-mineralization of N in soil to which dried or composted 15N labelled ryegrass (Lolium italicum L.) had been added. Cellulose was added to dried ryegrass to give a C/N ratio similar to that of composted ryegrass. Exchangeable NH4+ and NO3-, HCI-hydrolyzable N forms, microbial biomass N, NaOH-soluble and insoluble N were monitored during incubation. Dried ryegrass brought about a significant increase in total and labelled exchangeable NH4+, while a rapid immobilization and a subsequent slow release of exchangeable NH4+ was observed in soil with composted ryegrass, together with a resistance to degradation of the labelled humic substances. Compounds synthesized during the composting process and resistant to microbial decompostition probably caused an increase in the amino-acid fraction of soil. These findings suggest that composting can reduce the risk of N losses." |
Language: | English |
References: | 0 |
Note: | Figures Tables Refs. Erratum replacement Table 3 published in 150(2), March (II). |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Zaccheo, P., L. Crippa, and P. L. Genevini. 1993. Nitrogen transformation in soil treated with 15N labelled dried or composted ryegrass. Plant Soil. 148(2):p. 193-201. |
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