海量图书期刊资源,随时随地畅享阅读乐趣
Uptake of 32P labelled phosphate by clover and ryegrass growing in mixed swards with different nitrogen treatmentsP. J. GOODMAN; M. COLLISON · 1981
Effect of three clover varieties on growth, 15N uptake and fixation by ryegrass/white clover mixtures at three sites in WalesP. J. GOODMAN; M. COLLISON · 1986
Yield responses of two ryegrass and two white clover varieties grown in contrasting mixtures with applications of phosphate at different depths and on different soilsP. J. GOODMAN; M. COLLISON · 1985