@MightyMumra
Rich is correct and pointing you the right direction and to the right problem.
High P&K is the culprit for the yellowing! There is really nothing you can do about it now.....maybe some moderate N to attempt to slow the progress.
Why this worked with other seeds and not these is most likely that the first seeds you ran were an Indica/Ind dominate and not a "Haze" (Sativa). Most sativa's are not happy with high nutrient levels and are kinda fussy about feeding! Water only soils work wonders for them! If they lag a bit and show a def. It's easier to add something then take away in growing - ALWAYS!
Simple water only's are really easy to construct and the rule of "less is more" is really true for organics....
I came from organics when I started this a long - long time age and moved over to synthetics years ago and still played with them when I went back to mainly organics a few years back. I dropped ALL synthetics and will never go back now....I mean they work but, I can do just as well with out them and get better taste in the end. Building your own soils is rewarding in all the best ways over synthetic use.
A great place to start with water only organics is this link.
http://forum.grasscity.com/organic-growing/1116550-easy-organic-soil-mix-beginners.html
The methods she outlines are the key to learning just how to adjust into soils built for veg and bloom with Indica's or sativa's.
I have gone back to a 2 soil method with a veg soil and a bloom soil to boost yields and express available coloring traits.
It's simple to do by doing the above with the tomato nutrients above and then building with a "fruit and flower" or a good "Bulb" food for bloom. If you get the gist of she "builds" a dry nutrient you will quickly learn to "build" your own specific NPK ratio nutrients with the proper "release" timing and become VERY happy with your results.....
Organics and water only soils can take time to master. Be patient and give a real read to the above link.
I STRONGLY suggest these books to assist you as a knowledge base for organics.
Teaming With Microbes - The Organic Gardeners Guide to the Soil-Food Web.
http://www.amazon.com/gp/product/1604691131/ref=pd_lpo_sbs_dp_ss_2?pf_rd_p=1944687582&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=1931160961&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0ZNWMEWK7JFQJT32EPGE
And
Teaming With Nutrition: The Organic gardeners Guide to Optimizing Plant Nutrition
http://www.amazon.com/Teaming-Nutrients-Gardeners-Optimizing-Nutrition/dp/1604693142/ref=pd_bxgy_14_img_y
These three things will help you BIG time to a happy organic growing style.
Good luck Bro!