Cation Exchange Capacity #1032 (Air Date 1-14-18)

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Brian and Darren Hefty talk about cation exchange capacity and the importance of understanding the CEC of your soils.

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Thanks very much. After I sent my question, I realized what is about. You are speaking about holding capacity and it makes sense. I am working in Europa and in China. In China, the main problem we have is the huge amount of fertilizer they use. I am trying to implement Neal Kinsey's system and explaining what is necessary to look in the soil. They have huge amounts of N in the soil due to the big amount they use. thx very much and I keep watching your videos

alejandrofigueroa

This is a very helpful explanation— thank you very much!

danno

Really good explanation, thanks you AgPhD!

gezahagnnegash

How do you account for different root depths? An annual crop has to utilize less of the soil than a perennial crop. If I’m growing a crop within the first 4 inches of soil on one side of my property and another with deeper 12 in roots, how do I take that into account? If I need to add 150 lbs of nitrogen to an acre over a plants lifespan, what total soil volume does that actually represent?

Gothfield

Talking about environment and dollars yet he wants that farmer to apply N 4 times more to the soil. That means more gas, more money, and more time. This ain't a perfect world so just let the dude put down the 250 lb of N and partially catch the run off on artificial reservoirs.

roqueluis

What role does OM play in water penetration? Isn’t OM beneficial on the 40 CEC soul?

granny

Do you subtract the organic nitrogen value from your total CEC value to get what you can apply ?

calvinbryans

If i'm using minimum tillage...no plough ...i need to put more nitrogen in soil becouse of the rest of the crop...is that rest of the crop going to restituite nitrogen later?...like this i'm growing my CEC?
THANK YOU

iope

Hi, this video is from 2018, quite a long time ago. But I try it anyway. what if i am going to expect 400 bushels or something like that. what is the multiplicator? thx

alejandrofigueroa

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