At what amount does zakat become obligatory, and how much is it, with clarification, for an agricultural feddan whose total expenses were 20,000 pounds, its total revenue was 30,000, and its net profit after expenses was 10,000?

The obligatory Zakat (definition) on agricultural land is to pay Zakat on the yielded crops. According to the majority of scholars, it is not permissible to give its value in cash. If the crop is among those subject to Zakat, such as storable foodstuffs, and it reaches the nisab (definition) (five awsuq), then Zakat is obligatory: one-tenth if irrigated without effort, and half of one-tenth if irrigated with effort. Expenses incurred on the land are not deducted. However, if the crop is not among those subject to Zakat, then Zakat is obligatory on its monetary value if a year has passed over it and it has reached the nisab.