The aim of this dissertation on is to construct biological cycles for major and important minor elements, starting at the soil, tracing the nutrients through the plant and animal and finally back to the soil animal droppings. This is attempted by a survey ...

One method of studying the effects of Time as a Soil Forming Factor is the recognition and investigation of a Chronosequence, wherein four of the five Soil Forming Factors are kept constant or ineffectively varying. Thus, observed differences between soi ...

Coriaria is the most widespread and vigorous genus of nodulated, nitrogen fixing plants in the native flora of New Zealand. The following study is concerned with the impact that Coriaria, and in particular C. arborea, has on the nitrogen economy of natura ...

Throughout the world, irrigation is used to raise the productive capacity of the soil, where soil moisture is a limiting factor. Many irrigation areas can not achieve any production without the supplementation of soil moisture, while others employ irrigat ...

Within the general area of aggregate New Zealand beef supply, the supply of store cattle and associated beef products from beef breeding farms on a certain class of North Island hill country was chosen as the object of immediate study and the scope of thi ...