By the mid-1980s, farmers in Denmark（） A: used 50 per cent less fertiliser than Dutch farmers. B: used twice as much fertiliser as they had in 1960. C: applied fertiliser much more frequently than in 1960. D: more than doubled the amount of pesticide they used in just 3 years.

请根据中文意思选择单词。杀虫剂 A: suicide B: pesticide C: fertiliser

Which one of the following increased in New Zealand after 1984（） A: farm incomes B: use of fertiliser C: over-stocking D: farm diversification