Fortunately, New Zealand is home to a number of high quality and affordable options for garden fertilizer. Roots Shoots Fruits is a fertiliser that is rich in phosphorus, which is an important mineral for soil health. This fertiliser was first imported by W. E. Ivey in the early 1880s, when he was the director of Lincoln University's Lincoln School of Agriculture. He also began local production in 1882, near Dunedin. In 1884, the New Zealand Manure and Chemical Company began producing superphosphate at Mt Maunganui in the Bay of Plenty region.

Using organic matter or compost to enrich the soil will help your plants absorb the nutrients it needs to grow. However, there are many plants that need extra feed during certain stages of their life cycle, especially when they are actively growing and flowering or producing seed. Organic fertilisers nz should be added to the soil in autumn to give the plants plenty of time to break down. On the other hand, controlled-release fertilisers will provide a consistent dose of nutrients over months to help plants grow and flower.

The New Zealand Fertiliser Association's Business Register and Business Frame are good sources of data on nitrogen application on farms. This information provides a rounded view of New Zealand's garden fertiliser market. Nevertheless, it is important to note that there are differences in the nitrogen content of different fertilisers. While these differences are relatively small, they still provide valuable information. The association has released a report on nitrogen levels and phosphorus in New Zealand.