Complete Plant Abuse Chart

[Couchlocked]

[Zippy]

Pretty handy guide, thanks!

[lkdj2003]

Great post.

[Ratchet]

Thanks For this will be a great help.

[DellaMorte]

worth making this a sticky?

[lkdj2003]

worth making this a sticky?

Done!

[Lt. Pink]

really good post

[Nephilim]

It's important to not rule out checking pH before doing anything, even in soil... "GigZ-16" on another forum summed up this a lot better than I could probably waffle you through it (Extracts Below) :-

"When growing in soil any fertilizer you use can cause an excess build up of salts when it decomposes in the soil. This almost always results in a more acidic soil which stunts the plant's growth and causes brown foliage. When using a Hydroponics set-up the nutrient solution can very easily cause a fluctuation in the growing reservoir. The water in rainy climates, such as the Pacific Northwest of North America, the UK, Netherlands and Northern Europe, is often acidic with a pH below 6. Lightly sandy soils with little clay and organic matter are quicker too become more acidic. Another common mistake is that a grower will mix his soil unevenly, leading to "hot spots" in the growing medium, so mix all ratios as well as you can.

What are signs of a PH fluctuation in my Cannabis plant?

A Cannabis plant can show signs of a pH flux in several ways. The leaves may begin to turn yellow or brown, dry up and/or shrivel on the sides into a straw like shape. Keep in mind however that other deficiencies and disorders may show the same signs of damage, so don't jump to conclusions until you do some testing and adjusting to your plants and their growing medium.

Some things to remember(I didn't write these ones)

1.Always test the pH of raw water and drainage water with a pH meter.

2.Raw water pH above 6.0 helps keep fertilizer mixes from becoming too
acidic.

3.The pH level is much more important in organic soil gardens than in chemical
hydroponic gardens. The pH dictates the environment of bacteria necessary to the uptake of organic nutrients."

[Phaze]

helpful, cheers mate!

[Proph]

This chart is im my view almost pointless as it barley adresses PH for one and pics are to few and of really poor qual!
i would advice anyone seeking an answer to their problems not to only go by this chart alone ---Use google---.