共 7 条
[1]
Interactions between white clover and ryegrass under contrasting nitrogen availability: N 2 fixation, N fertilizer recovery, N transfer and water use efficiency[J] . Plant and Soil . 1997 (2)
[2]
Neighbourhood effect of genotypes of Rhizobium leguminosarum biovar trifolii, Trifolium repens and Lolium perenne[J] . J. M. Expert,P. Jacquard,M. Obaton,A. Lu¨scher.TAG Theoretical and Applied Genetics . 1997 (3-4)
[3]
Measurement of biological dinitrogen fixation in grassland: Comparison of the enriched 15 N dilution and the natural 15 N abundance methods at different nitrogen application rates and defoliation frequencies[J] . Plant and Soil . 1994 (2)
[4]
Transfer of fixed nitrogen from white clover to associated grasses in swards grazed by dairy cows, estimated using 15 N methods[J] . S. F. Ledgard.Plant and Soil . 1991 (2)
[5]
The effect of hydrogen cyanide potential (HCNp) and sward morphology on the relative acceptability to sheep of white clover and Caucasian clover herbage .2 Hill M J,Hockney M J,Mulcahy C A,et al. Grass and Forage Science . 1995
[6]
Response of corn grain yield to early and later killed red clover, green manure and subirrigation .2 Tiffin P,Hesterman O B. Journal of Production Agriculture . 1998
[7]
Analysis of the coexistence mechanisms for grasses and legumes in grazing systems .2 Schwinning,S,Parsons,A J. J. Ecol . 1996