Publication Date
1997
Description
Nitrogen contribution from legume green manure crops is becoming more important as the price of N fertilizer increases in order to maintain sustainable agricultural production systems. The quantity of N in the top growth and roots of ‘Yuchi’ arrowleaf clover (Trifolium vesiculosum Savi.), ‘Tibbee’ crimson clover (Trifolium incarnatum L.) ‘Overton R18’ rose clover (Trifolium hirtum All.), ‘Mt. Barker’ subterranean clover (Trifolium subterraneum L.) and hairy vetch (Vicia villosa Roth) was determined at monthly intervals throughout the growing season. Maximum N accumulation in all species occurred in May. Hairy vetch and crimson clover had some of the highest N levels from Oct. through Feb. From Apr. through June, arrowleaf clover contained the most N because of its later maturity. Percentage of total plant N in the roots ranged from 4 to 22% with the lower percentages in spring when a rapid increase in top growth occurs. Hairy vetch had a lower percentage of total plant N in the root than the other species from Oct. through Mar.
Citation
Evers, G W., "Nitrogen Distribution Between Shoots and Roots of Five Cool-Season Legumes" (2024). IGC Proceedings (1997-2023). 41.
https://uknowledge.uky.edu/igc/1997/session19/41
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Nitrogen Distribution Between Shoots and Roots of Five Cool-Season Legumes
Nitrogen contribution from legume green manure crops is becoming more important as the price of N fertilizer increases in order to maintain sustainable agricultural production systems. The quantity of N in the top growth and roots of ‘Yuchi’ arrowleaf clover (Trifolium vesiculosum Savi.), ‘Tibbee’ crimson clover (Trifolium incarnatum L.) ‘Overton R18’ rose clover (Trifolium hirtum All.), ‘Mt. Barker’ subterranean clover (Trifolium subterraneum L.) and hairy vetch (Vicia villosa Roth) was determined at monthly intervals throughout the growing season. Maximum N accumulation in all species occurred in May. Hairy vetch and crimson clover had some of the highest N levels from Oct. through Feb. From Apr. through June, arrowleaf clover contained the most N because of its later maturity. Percentage of total plant N in the roots ranged from 4 to 22% with the lower percentages in spring when a rapid increase in top growth occurs. Hairy vetch had a lower percentage of total plant N in the root than the other species from Oct. through Mar.
