Journal of the Royal Agricultural Society of England, Svazek 134

11th Brit acres ammonia Animal Production arable barley blackgrass breeds British business games calf calves carrots cattle cent Centre Centre's cereals chemical clover competition cost cows crops cultivations dairy Dinoseb drilling economic edition effect efficiency England and Wales estates ewes experiments farm buildings farmers feeding fertiliser field forest Forestry Commission grass grassland grazing growers growing growth harvest herbicides herd husbandry Idem important improved increase industry intake Intraspecific competition Journal of Agricultural lactation lambs land livestock manuring methods milk nitrogen nutrition organisations pasture plant population potatoes poultry problems Proc profit protein rearing Research row spacing Royal Agricultural Society Scottish Blackface seed sheep silage Society of England soil spacing strawberries sugar beet timber units varieties vegetable Weed Control Weed Control Conf Weed Research Organisation wheat wild oats woodlands yield