The effect of dairy manure, chicken manure and fertilizer on timothy ผลของมูลโคนม มูลไก่ และปุ๋ยทิโมธีThe effect of dairy manure, chicken manure and fertilizer on timothy (Phleum pratense L. yield, tissue composition and soil fertility was assessed from 1980 to 1982. field plots in Quebec on a clay soil compared fertilizer (110-85-85 kg