Productivity is of particular interest to farmers, who want to maximise the net productivity of their farms.
Arable farmers want to maximise their NPP, while pastoral farmers want to maximise their NSP.
Intensive farming (practiced in developed nations) is ten times more productive.
Intensive farming is designed to maximise productivity (crop/meat/milk etc.) by making use of any appropriate technology. The huge increase in human population over the last few hundred years has beenpossible due to the development of intensive farming.
Intensive farming techniques to increase productivity include:
• Selective breeding. Most of the increases in primary productivity are due to selective breeding of crops and farm animals that grow faster and bigger.
• Fertilisers. Primary productivity is often limited by the availability of minerals in the soil, so fertilisers overcome this limitation and increase productivity.
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