2024-08-222024-08-221976https://hdl.handle.net/10182/17482Several recent studies (Stewart & Porter, 1969; Baker et al, 1973) on crop plants and grass forages have shown that responses on large nitrogen (N) fertiliser applications were often limited by a deficiency of sulphur ( S). An inadequate supply of S not only affects yields, but also the quality of the herbage produced. In view of this close relationship between N and S nutrition in plants, the present study was undertaken to examine the interaction of N and S fertilisation on the yield and composition of perennial ryegrass in a pot experiment. The present study therefore attempts to determine: 1. effects of N and S fertilisation on the top and root yields of the grass ; 2. the influence of N and S on the quality of the grass herbage - as reflected by the percentage digestibility, chemical composition of N and S fractions and the amino acid composition of these plants , and 3. the S nutrition status of the grass from information concerning the quantity of N and S in the herbage.https://researcharchive.lincoln.ac.nz/pages/rightssulphursoil analysisnitrogenfertiliserryegrassAn investigation of the effects of added sulphur and nitrogen to S-responsive and S-non-responsive soils from Canterbury on the digestibility and chemical composition of perennial ryegrass plants (Lolium perenne L.) : A thesis submitted in partial fulfilment of the requirements for the Degree of Bachelor of Agricultural Science (Hons) in the University of CanterburyDissertationDigital thesis can be viewed by current staff and students of Lincoln University only. If you are the author of this item, please contact us if you wish to discuss making the full text publicly available.ANZSRC::410603 Soil biologyANZSRC::410601 Land capability and soil productivityANZSRC::410604 Soil chemistry and soil carbon sequestration (excl. carbon sequestration science)ANZSRC::300411 Fertilisers (incl. application)