Changes in the N Recovery Process from15N-Labeled Swine Manure Compost and Rice Bran in Direct-Seeded Rice by Simultaneous Application of Cattle Manure Compost

Autor: Kazunari Tsuchiya, Mizuhiko Nishida, Mihoko Moriizumi
Rok vydání: 2005
Předmět:
Zdroj: Soil Science and Plant Nutrition. 51:577-581
ISSN: 1747-0765
0038-0768
DOI: 10.1111/j.1747-0765.2005.tb00067.x
Popis: The N recovery from 15N-labeled swine manure compost and rice bran with or without simultaneous application of unlabeled cattle manure compost was examined in a paddy field with direct-seeded rice during a 1-year period (1 crop season). In all the 15N-labeled materials including (15NH4)2SO4, the processes of N recovery from the 15N materials by rice plants were different between the plots with and without application of cattle manure compost. At the tillering stage, the N recovery rates from the 15N materials in the plots with application of cattle manure compost were significantly lower than those in the plots without application of cattle manure compost. These recovery rates, however, became close and no significant differences were observed at the maturity stage. Thus, simultaneous application of cattle manure compost could impede the N recovery from swine manure compost, rice bran as well as (NH4)2SO4.
Databáze: OpenAIRE
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