Publication Date
1997
Description
An experiment to determine nitrogen and water effect on dry matter yield of perennial ryegrass (Lolium perenne L) in mixtures with white clover (Trifolium repens L) and pure ryegrass pastures was carried out during two years at Balcarce, the Buenos Aires province, Argentina. Two levels of irrigation, natural rainfall and 20 mm irrigation when needed, and four levels of nitrogen fertilization 0; 150; 300; and 450 kg N.ha-1.yr were applied. During the first year it was necessary to apply 250 mm of supplementary water to the irrigated plots, while 530 mm were needed the second year. Nitrogen responses of irrigated pure ryegrass pastures varied between 14.2 and 17.6 kg DM per kg applied N in the first and second year respectively. Nitrogen fertilization of ryegrass/clover pastures depressed clover content and had negligible effects on DM production. In both years, the irrigation of mixed pastures had a response of about 22 kg DM per mm of supplementary water.
Citation
Escuder, C J. and Cangiano, C A., "Effect of Irrigation and Nitrogen Fertilization on Ryegrass and Ryegrass/ White Clover Swards" (2024). IGC Proceedings (1993-2023). 62.
https://uknowledge.uky.edu/igc/1997/session22/62
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Effect of Irrigation and Nitrogen Fertilization on Ryegrass and Ryegrass/ White Clover Swards
An experiment to determine nitrogen and water effect on dry matter yield of perennial ryegrass (Lolium perenne L) in mixtures with white clover (Trifolium repens L) and pure ryegrass pastures was carried out during two years at Balcarce, the Buenos Aires province, Argentina. Two levels of irrigation, natural rainfall and 20 mm irrigation when needed, and four levels of nitrogen fertilization 0; 150; 300; and 450 kg N.ha-1.yr were applied. During the first year it was necessary to apply 250 mm of supplementary water to the irrigated plots, while 530 mm were needed the second year. Nitrogen responses of irrigated pure ryegrass pastures varied between 14.2 and 17.6 kg DM per kg applied N in the first and second year respectively. Nitrogen fertilization of ryegrass/clover pastures depressed clover content and had negligible effects on DM production. In both years, the irrigation of mixed pastures had a response of about 22 kg DM per mm of supplementary water.
