Benutting en relatiewe smaaklikheid van verskillende grasspesies

Uittreksel

‘n Eenvoudige tegniek word beskryf waarvolgens die benutting van individuele grasspesies deur beweiers vasgestel kan word, deur middel van puntopnames in die veld, Hierdie metode is veral geskik om die relatiewe smaaklikheid (benutting) van verskillende spesies op verskillende veldtipes, ekologiese omgewings, behandelings van faktoriale proewe, ens., te vergelyk.

Interessante resultate is behaal deur ‘n opname wat onlangs op die Bankenveld uilgevoer is Die proef bestaan uit ‘n 3³ gestrengelde faktoriale uitleg. Veranderlikes behels : 3 veeladings, 3 peile van slikstofbemesting en 3 peile van ander bemestingstowwe. ‘n Vyfkampstelsel is op elke behandeling toegepas. Dour middel van die opnamedate was dit moontlik om die verskillende spesies in ‘n rangorde van benutting (d.w.s. relatiewe smaaklikheid) le plaas. Die persentasie benutting en gemiddelde hoogte van benutting, is vir individuele spesies sowel as vir behandelings bepaal. Die invloed van bebandelings op die benutbaarheid van spesies onder die verskillende hoofeffekte en inleraksies kan duidelik. uitgewys word.

Abstract

A simple technique is described by which it is possible to collect information on the utilization of different grass species by means of point surveys. This method enables the relative acceptability (utilization) of different species to be compared between different veld types, ecological regions, different treatments of factorial experiments, etc.

Interesting results have recently been obtained from a grazing experiment on the Bankenveld. Treatnients comprised 3 stocking rates, 3 levels of nitrogenous fertilizer and 3 levels of other fertilizer in factorial combination. On each treatment a five‐camp rotational grazing system was applied. According to the information obtained from this trial, it was possible to rank the species in respect of relative utilization (i.e. relative acceptability). The percentage utilization and mean heteht after utilization of individual species, as well, as means for ihe different treatments, were recorded. The influence of treatment main effects and interactions on the utilization of the different species is discussed.

Notes

Nuwe adres: Bethlehem Landbounavorsingstasie, Privaalsak X29, Bethlehem.