Titlebook: Nitrogen Economy in Tropical Soils; Proceedings of the I N. Ahmad (Chairman, Organizing Committee) Conference proceedings 1996 Kluwer Acade

Factual

groggy

The role of , in curbing ammonia volatilization from flooded rice systems, is to be preserved, intensification strategies should rely on integrated nutrient management, making full use of biological nitrogen fixation. The . complex is amongst the most effective systems of fixing nitrogen. In this paper we present evidence from greenhouse studies on the potential of . to c

Migratory

相一致

豐滿(mǎn)有漂亮

使出神

ships, with special reference to tropical soilsand crops in aerobic and anaerobic environments. Use of isotopicallylabelled nitrogen in experimentation, especially in tropicalenvironments, and recently developed analytical techniques for soiland plant materials are presented. An important aspect is

interference

Conference proceedings 1996h special reference to tropical soilsand crops in aerobic and anaerobic environments. Use of isotopicallylabelled nitrogen in experimentation, especially in tropicalenvironments, and recently developed analytical techniques for soiland plant materials are presented. An important aspect is the emphas

Arroyo

e of information for senior undergraduate and graduatestudents with interest in soil/plant nitrogen inter-relationships, andfor all levels of research workers in these fields.978-94-010-7264-9978-94-009-1706-4

EXUDE

Forms and nature of organic N in soil,oil, emphasizing possible formation pathways, chemical characterization of humic substances through conventional and solid-state techniques, and the fate and composition of newly immobilized N in soil.

音樂(lè)會(huì)

Use of 15N for fertilizer N recovery and N mineralization studies in semi-arid Kenya,il N supply by gross mineralization were calculated. On average, modelled gross soil N mineralized could supply much (> 69%) of the N removed from the plots. It is suggested that the lack of response to fertilizer N may be explained by the coincidence of a high rate of N mineralization, and increased crop demand, caused by the onset of rain.