that plant is overwatered. watered last night. i think i did it two days in a row, im high alot...... haha, but yea they are on 24/0 anyway. they use lots of water.
personally ive fond the best way to do nutes is get a really good soil mix. i use compost, a rich black top soil from the stream near my house, some natural sand from there too, miricle grow organic soil and i use small amounts of ashes. then i leave it allone and just water. ive never had nute deficiencys. plain and simple. check out this post https://www.rollitup.org/outdoor-growing/24703-its-all-bullsh-t.html