HELP! MG Deficiency? Too much ammonium sulfate?

enjoi7oo7

Active Member
Hey im growing outdoors and i have 10 plants total. I ran a soil test and my PH was high and Nitrogen was low. Accordingly, I added some ammonium sulfate to the soil to acidify it and bring up the amount of nitrogen. Some plants appear to be fine and only show minor lower leaf nitrogen deficiency problems while others seem to be seriously Mg deficient. HELP! I added a very small amount of water with Epsom salt in it, 1/4 teaspon for only 1 gallon. What else should i do?! How can i fix this.


they're still nice plants so there must be a way to salvage them. If they're done ill kill myself.
 

Attachments

enjoi7oo7

Active Member
Not all of the plans are burning up like some of them are. It is randomly just a few of the plants, even though i added ammonium sulfate to all of them.

HELP
 

ceestyle

Well-Known Member
Give them a well-balanced feeding with nutrients that contain Mg.

Fucking around with individual amendments to get them balanced is difficult unless you have a recipe that you know works well for your medium. I'm not knocking that method of organic gardening, but it's for the more advanced cultivator. I can't tell you how many grows I've seen fucked up from someone trying to "fix" this or the other deficiency by throwing something like guano, fish emulsion, whatever to the mix. pH is especially sensitive to amendments, and swings in any direction can be very shocking for any plant.

This is why people pay for nutrients that have already been balanced and work well for MJ.
 

enjoi7oo7

Active Member
What is a well balanced feeding of nutrients that contain Mg? I am still learning a lot but my understanding is that micronutrients like Mg come from things like compost and are only needed in very small quantities. I watered them all with about a gallon of water with Epsom salt, what else do you recommend?

Im a guerilla grower so it's kinda tough to get out there and the amount of water/supplies i can bring is limited per trip.
 

ceestyle

Well-Known Member
mj requires a decent amount of mg, and that's one reason a lot of standard fertilizers just don't cut it in the long run. My advice was meant to be taken before you added salt , but they don't look bad, so don't worry.

I'm doing a bit of guerrilla as well, and I just mix a but of liquid nutes in with the water I pack in. There are many options; hunt around on here and you'll find a lot of good info. Foxfarms, botanicare, advanced, supernatural ... Many others. You could also try one time application of stuff like Heavy Harvest and just water when you need to.
 

Twistyman

Well-Known Member
I had the V shape leaf thing with 2 plants... I put dolomite lime in the soil to get a neutral ph .. then a small amount of epsom salts, seems to have worked fine..
my nute is a basic 20-20-20
 

enjoi7oo7

Active Member
which type of fox farms? and are these fertilizers you are recommending to me organic? I've gone all organic thus far so i might as well stick to it.

Also, i just put out 15 more sprouts, im assuming they'll have more than enough time to grow by this October, correct? There isnt anything wrong with planting a bit late?
 
Last edited:

enjoi7oo7

Active Member
also, i already added too much ammonium sulfate to lower the PH. I wouldnt want to completely acidify it. right?
 
Top