Based on the buffer pH of your soil sample, a lab recommends that you apply 2 Mg of CaCO3 equivalent to your field and plow it in 18 cm deep to achieve your target pH of 6.5. You actually plan to use...

Based on the buffer pH of your soil sample, a lab recommends that you apply 2 Mg of CaCO3 equivalent to your field and plow it in 18 cm deep to achieve your target pH of 6.5. You actually plan to use the lime to prepare a large lawn and till it in only 12 cm deep. The lime you purchase has a carbonate equivalent = 85%. How much of this lime do you need for 2.5 ha?