Soil Fertility & Nutrient Cycling

Every crop removes nutrients from the soil, and the long-term challenge of farming is replacing them in ways that are efficient, affordable, and environmentally sound. Soil fertility is not simply a matter of how much fertiliser is applied — it depends on the continuous cycling of nitrogen, phosphorus, potassium, and a host of micronutrients through living and decaying matter, mineral reserves, and biological transformation. The Soil Fertility & Nutrient Cycling session explores how these cycles function, why they sometimes break down, and how growers can work with natural processes rather than against them to sustain productive land.

Where does applied nitrogen actually go, and why is so much of it lost? How can phosphorus locked in the soil be made available again? These practical questions frame the discussions, which weave together plant nutrition, microbiology, and nutrient management strategy. Participants in this Agriculture Conference will look closely at how plant nutrient management can raise use efficiency, cut waste, and reduce the environmental footprint of fertilisation. By balancing organic and mineral sources and harnessing biological cycling, the session helps researchers and farm advisors design fertility programmes that feed crops well while protecting soils and waterways.