The diagram below illustrates a spring tined cultivator or harrow

(a) For what type of farm operation is the implement used?

(b) Name the implement used:
(i) before the spring tined harrow is required;
(ii) after its operation.

(c) Explain how the vertical stalk helps the tine to overcome the obstruction.

(d) State five maintenance methods for the implement

(e) After the cultivator has worked on the soil, what changes will occur in the following:
(i) soil structure
(ii) soil texture