Nitrogen transfer from nodulating soybean [Glycine max (L.) Merr.], to corn (Zea mays L.) and non-nodulating soybean in intercrops: direct 15N labelling methods

Autor:	H. D. Voldeng, Ralph C. Martin, Donald L. Smith
Rok vydání:	1991
Předmět:	biology Physiology Field experiment fungi food and beverages chemistry.chemical_element Intercropping Plant Science biology.organism_classification Nitrogen Petiole (botany) chemistry Agronomy Labelling Glycine Nitrogen fixation Poaceae
Zdroj:	New Phytologist. 117:233-241
ISSN:	1469-8137 0028-646X
DOI:	10.1111/j.1469-8137.1991.tb04904.x
Popis:	summary In order to test for N transfer to com (Zea mays L.) or to non-nodulating soybean [Glycine max [L.] Merr.), nitrogen enriched in 15N was directly applied to a petiole or to secondary roots of adjacent nodulating soybean. In the field in 1988, 15N applied directly to a petiole of nodulating soybean was detected at significantly higher levels in adjacent corn plants than when un enriched N was similarly applied. Applications of enriched N and un enriched N to nodulating soybean roots did not result in significant differences in %15N an adjacent corn plants. However, in greenhouse experiments, enriched N applied in split-root systems to secondary roots of nodulating soybean, was detected at higher levels in associated corn and non-nodulating soybean than when un enriched N was similarly applied.
Databáze:	OpenAIRE
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