Since the Second World War, Government has played an important role in developing unproductive land in New Zealand. The aim of this report is to examine why Government became so deeply involved in the development of such ...

In this paper we are concerned with some economic aspects of the use of artificial nitrogen fertilisers in New Zealand agriculture. With the prospect of much cheaper nitrogen fertiliser in the future (and possibly more ...

Although New Zealand is fortunate in having a climate mild enough to allow some growth of pasture in winter even in the extreme south of the South Island (Duffy, 1971), growth is nevertheless considerably less than in ...

Nitrogen has been central to many of these speculations regarding the function of mycorrhizas in tree nutrition and growth. Historically it was felt that mycorrhizas were more efficient in absorbing nitrogen from humus ...