Bulletin, Edicions 330-342

according Agriculture amount appear applied approximately attack average avocado bags beans Bearing become Cape capital cattle cause cent colour contains costs covered crop cultivated damage disease draught early effect especially farmers farms feet fertiliser fertility flower fruit grain green growing grown growth harvested head heavy higher important inches income increase infested insect irrigation labour land larvae latter leaves less maize manure means method milk months morgen necessary obtained occur Orange Free Percentage period plants ploughed possible practice production quantities rainfall recommended regions roots rows sandy season seed sheep soil South Africa sown spray stage stem summer surface Table temperature timber Total tractor Transvaal trees types Union units usually varieties various vegetables weeds wheat winter wood yield