There’s no single named soil type across Pyes Pā — it’s rolling hill-country ground, and the two ends of a single section can behave quite differently. Upper, well-drained slopes lose applied nutrient to runoff faster; lower ground holds moisture and nutrient longer but drains more slowly after rain.
A single heavy feed applied the same way across a sloped section behaves unpredictably: some of what goes down greens the upper part briefly while running off before it’s taken up, while the lower end can sit waterlogged rather than absorbing it either.
Splitting the same total quantity across four to six lighter, more frequent applications gives roots on every part of the section more chances to take up what’s applied before it runs off or pools — and lets us adjust rate by where on the slope a given patch actually sits.
That’s the whole case for a programme rather than a one-off here, tailored to your specific section rather than treated as one uniform lawn.