Originally Posted by k1v1116
yea for me at least it seems to be moving from the ground up. Ive tried adding epsom salts 1Tbsp in 1 gallon water since it looks closest to a magnesium deficiency but I havent seen any change yet (this was 3 days ago) I dont know if this means its not Mg, I didnt add enough, or it just needs more time.
Do you water your plants? If so magnesium deficiency is all but out. Almost all well/city water has ample amounts of both calcium and magnesium (and most soils are also sufficiently loaded). Common soil deficiencies are potassium, iron, nitrogen, phosphorous. Most fertilizers supply the NPK and so a lot of people see iron deficiencies, but this doesn't look like chlorosis, rather it looks like potassium deficiency.
The problem with hops and other fast growing plants is they can very quickly sap local nutrient concentrations. So even if the soil surrounding has ample nutrients, with first year plants having poor root systems they just don't have the nutrients in close enough proximity. While its great to go organic (I myself use home-made compost for most of my fertilization), I've started to add a very dilute (1:10th recommended dosage) of miraclegro to a watering can, and use that for some of the watering directly over the rhizome area (say 6" diameter). This way I can be sure that even under the craziest growth spurt there shouldn't be a nutrient deficiency.
After this first year though, I plan to go back to strictly organic feedings.