Brownish Leaves

Hi I recently got into growing and now they started to get brownish dry leaves not so much on one of them though and a bit yellowish on a few places what could it be??.. il upload a few pics to make it easier for you to help me I hope

It looks like Phosphorus deficiency, at least primarily. Try to take whole-plant pics if you're able, as they're often necessary for a solid diagnosis. Have a look at the oldest leaves; the pod leaves and very first single- & three- bladed leaves. Those get hit first when there's a toxicity.

Its hard to tell. id hit it with a bloom and some magnesium (calmag)

Uploaded a new pic u see its yellowish on a few places?