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RE: Permaculture - Mineral fertilizers (Lesson 8 + contest)
You miss something in your count :) I didn't receive the correct answer yet so I am leaving the contest open
You miss something in your count :) I didn't receive the correct answer yet so I am leaving the contest open
Yeah, thanks for bringing this to my notice,
For a 100m2 piece of land you need 10kg of calcium, that should be 100%.
But from our question, Marl has only 50% calcium, so to make that up to the required dosage, simply multiply the average recommended dosage of calcium for a 100m2 land by 2
(I.e 10kg X 2) this will give 20kg of Marl. This is so as to make up to the requirements of 100%calcium.
Therefore, the required dosage of Marl is 20kg for a 100m2 piece of Land.
Thanks.
That's correct! You've got the reward, congrats.
Thanks a lot, you're the best. 🙏👏😊