From

Location

Message

Date Posted

Vancouver, British Columbia, Canada

I continue to be very confused by your iron levels. At 900+ ppm you are into critically toxic levels. Either this is an error or I’m missing something about what levels of iron giant pumpkins can tolerate.

5/21/2025 6:33:20 PM

Vancouver, British Columbia, Canada

Maybe you are taking your soil samples to the lab in a rusty bucket?

5/21/2025 6:38:24 PM

Vancouver, British Columbia, Canada

Maybe it’s 97.4??

5/21/2025 6:56:38 PM

Richmond, BC, Canada

Hi Ian I included moly in my latest soil test. It was 0.1. What do you use to raise Moly? Cheers

5/21/2025 11:55:36 PM

Lymington UK

We use a straight liquid molybdenum and we’re putting just 30ml per patch between soil samples. As Ron would say “spoon feeding “
I’ve done a rare leaf sample for everyone just to try and help people understand what’s going on.

5/22/2025 7:20:30 AM

Grittyville, WA

Did someone establish that moly is in fact helpful? I bought sodium molybdate dihydrate because I suspected I could get a slight improvement in certain crops, including my Atlantic giants. Growers who use alfalfa might already be getting enough. But I do suspect deficiencies are possible. Some blue fertilizers will have it, check the label.

[Last edit: 05/22/25 2:22:41 PM]

5/22/2025 2:21:39 PM

Vancouver, British Columbia, Canada

Molybdenum is an essential micronutrient for plant health, playing a vital role in various metabolic processes, particularly those related to nitrogen fixation, iron absorption, and overall plant growth and development. Plants use molybdenum to convert nitrates into amino acids and proteins, and it is crucial for the functioning of the nitrate reductase enzyme, which reduces nitrate to ammonium. Molybdenum also enhances iron uptake and utilization, contributing to healthy plant tissues.

5/24/2025 4:54:31 PM

Vancouver, British Columbia, Canada

Ian - be careful with Moly as it is critically involved in the process of iron absorption. With your soil iron levels so high if you increase Moly your plant might actually start experiencing those toxic iron levels in your soil. I see you tissue levels are not toxic at about 100 but nonetheless quite high.

5/24/2025 4:58:26 PM

Lymington UK

Thanks for the heads up Mike.

5/24/2025 5:22:50 PM