The most commonly used nitrogen and phosphorus fertilisers in the high rainfall south-west of Western Australia can be leached into the groundwater and washed into waterways, resulting in serious e
Micronutrient deficiencies can result from removal of agricultural products over many years, changes in soil acidity, or from large increases in plant biomass as a result of added nitrogen fertilis
Three-quarters of high rainfall (more than 600mm annual rainfall) clover pastures in Western Australia do not need additional phosphorus for optimal plant growth.
