Explain how the integrated processes in the production of NPK fertilisers benefit agricultural productivity.

Integrated processes in the production of NPK fertilisers allow for the efficient use of raw materials, reducing waste and costs while ensuring that the fertilisers contain the necessary nutrients for optimal plant growth. This leads to improved agricultural productivity.

A strong answer should directly address the approved learning objective to explain that industrial production of NPK fertilisers can use several raw materials and integrated processes. (Chemistry only). This question belongs to Production and uses of NPK fertilisers within The Haber process and the use of NPK fertilisers, so the response should use that exact curriculum context rather than a generic statement. The answer is correct when it names the key idea, explains the link to chemistry only, and keeps the wording specific to AQA GCSE revision.