Ask a Question forum: Tomato over fertilization

Views: 122, Replies: 3 » Jump to the end
Seanrook TX 77586
PatrickWill
Apr 10, 2018 11:54 AM CST
I believe I have over fertilized my tomatos but am not certain. Upper leaves are curled up and have lime green discoloration. As the leaves age they turn very dark green and remain curled . Plants are growing, flowering, and setting fruit, but not as good as past years. I used blood and bone meal along with rock phosphate at planting. Please see attached photos and comment.
Thumb of 2018-04-10/PatrickWill/f5864c


Thumb of 2018-04-10/PatrickWill/8078c9

Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Image
DaisyI
Apr 10, 2018 3:22 PM CST
Welcome!

Yep, you over did the bone meal, blood meal and rock phosphate, 3 sources of the same thing: Phosphorus. Did you do a soil test before you added all that Phosphorus? Did you add any other nutrients to your garden?

The nice thing about well balanced commercial fertilizers is that the manufacturers took the research that says what nutrients are needed and in what quantities and put them all into one package.

The only way to know if your soil is lacking something major is with a soil test. There could be sufficient phosphorus in your soil but, for some reason, its not being utilized by the plants. Planting too early while the soil is still cold is one, incorrect soil pH would be another.

Hopefully, eventually the phosphorus will break down and not be a problem but I don't know how long that will take or if there is a way to speed it up.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Webmaster: osnnv.org
Seanrook TX 77586
PatrickWill
Apr 10, 2018 6:35 PM CST
Thank you for your response. It pointed out an error in my initial text. I did not add rock phosphate. It should have read blood and bone meal along with potash. I was trying to add a balanced NPK supplement. I had performed several soil test which indicated the soil was badly depleted of NPK. The ph showed to be 6.5 - 7.0
I live on the Gulf coast near Galveston TX. We were hit by hurricane Harvey last year which dropped over 50 inches of rain in 4 days. The equivalent of our average annual rain fall. My garden flooded, and I believe the run off leached much of the nutrients from the soil. This is why I fertilized as I did. What I have not mentioned is the use of liquid humic acid. I have never used this before and I believe this is a contributing factor to my tomato issues. Humic acid is suppose to increase the plants ability to uptake nutrients. There are warnings humic acid can cause the plants to take in too much. I think this is the case and would appreciate any comments.
Name: Daisy I
Reno, Nv (Zone 6b)
Not all who wander are lost
Garden Sages Plant Identifier
Image
DaisyI
Apr 10, 2018 8:22 PM CST
All I can really say is digging in a lot of compost and adding a commercial balanced complete fertilizer is really the best thing you could have done.
Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming...."WOW What a Ride!!" -Mark Frost

Webmaster: osnnv.org

« Garden.org Homepage
« Back to the top
« Forums List
« Ask a Question forum
Only the members of the Members group may reply to this thread.

Member Login:

Username:

Password:

[ Join now ]

Today's site banner is by plantmanager and is called "Aloe Sinkatana"