The use Of fertilizers on herbage cut for conservation. IV. The effect of rates, methods of application and forms of fertilizer nitrogen on the yields of dry matter and nitrogen of grasses and clovers in a ryegrass and white clover sward, cut at different stages of growth
Walker, T.W.; Adams, A.F.R.Orchiston, H.D.
J. brit. Grassl Soc 8: 281-299
1953
Accession: 013900921
(NH4)2SO4 depressed yield of clovers more than did urea or nitro-lime (NH4NO3 + CaCO3), and gave slightly higher yields of dry matter and N in grasses. Urea is probably the best form of N for grass for out-of-season grazing and grass-seed production in New Zealand. One large application of -N gave as much crude protein in the grasses as did split applications.