Results of weed control trials in winter rape
Freydier, M., 1975: Results of weed control trials in winter rape. Compte Rendu de la 8e Conference du COLUMA: 545-553
In trials in 1972, '73 and '74 best yields were obtained with propyzamide at 0.5 and 0.75 kg/ha and propyzamide 0.5 + diuron 0.16 kg/ha at the 4-leaf stage of rape and with napropamide at 1 and 1.25 kg/ha incorporated before sowing. Napropamide failed to control Avena spp. and Lolium spp., while the mixture gave better control of many broad-leaved weeds than did propyzamide alone.Other references
Nilsson, C.A., 1972: Specialist training with prevention?. Lakartidningen 69(21): 2542-2544