Consider the following statements regarding the practices followed by the farmers of Jharkhand under "Jhoom farming":

(A) After cutting one crop the land is left as it is for some years

(B) The weeds (bamboo etc.) are pulled out and burnt in the field

(C) The ashes from the weeds act as manure

(D) When the land is ready for farming it is ploughed deeply before growing the seeds

The correct statements are: