Table 1. Descriptions of fields used in no-till alfalfa studies. 



Species present prior 



Soil to treatment, % 



Location Cooperator Series pH P ALF QG SBG OR TI KBG BW 



Madbury Univ. N.H. Charlton 6.2 VH 



Lee R. Booth Hollis 5.7 H 



Pembroke Richard Bros . Merrimac 6.1 VH 



Lee Univ. N.H. Charlton 6.4 L-M 45 



Epsom R. Yeaton Hinckley 6.2 H 



Pittsfield D. Osborne Paxton 6.6 H 



Northwood S. Johnson Paxton 6.1 M 



ALF = alfalfa, QG = quackgrass, SBG = smooth bromegrass, OR = orchardgrass, 

 Tl = timothy, KBG = Kentucky blue grass, and BW = broadleaf weeds. Sward 

 composition was judged in the fall of the year in which treatments were 

 initiated. 



L,M,H,VH denote low, medium, high and very high levels, respectively, of 



soil available phosphorus (P) 



