00273nam a22001217a 4500003000400000008004100004082001500045100001600060245002500076260003000101300000800131440001200139OSt240416b        |||||||| |||| 00| 0 eng d  a630.5bA23  aBrady, N.C.  aAdvances in Agronomy  aA.P.bS.R.T., Patnac1983  a457  avol.-36