Now showing items 1-2 of 2
A study of some soil fertility problems in Canterbury
(Canterbury Agricultural College, University of New Zealand, 1959)
Most of the early work associated with improvement of soil fertility was confined to the relatively productive plains and other readily accessible regions. That these areas have been highly developed agriculturally may be ...
Competition for nutrients between grasses and white clover
(Canterbury Agricultural College, University of New Zealand, 1957)
In a grass-clover pasture, the clover content is of considerable importance because of the dependence on symbiotic fixation for supplying the vast nitrogen needs of a highly productive sward. It is well realised that the ...