Net profit climbed 65 per cent to $107.4 million as Nufarm continued a revival that started around the time former Bunnings boss John Gillam replaced Donald McGauchie as chairman. Nufarm managing director Greg Hunt said chemical prices were falling from some of the highs caused by supply chain disruption during COVID-19. The cost of glyphosate, the most commonly used farm chemical in Australia, was already down more than 30 per cent. “The Chinese took a very strong position on zero-COVID and we saw supply chains disrupted longer than we initially thought, but we are certainly starting to see supply out…