A farmer applied one-third of the required amount of N.P.K fertilizer to 2 hectares of maize at the rate of 50 kg N.P.K, fertilizer per hectare, two weeks after planting.

Use the information above to answer questions (a) to (d) below:

(a) If the spacing of maize crops was 60 cm x 91 cm, calculate the plant population on the farm:

(b) Calculate the total quantity of fertilizer used on the farm.

(c) Calculate the amount of fertilizer applied during the first two weeks of planting the maize crops.

(d) Calculate the quantity of fertilizer applied per stand at two weeks.