Mr. Ward why not suggest that farmers make what fertilizer is already in the soil available by liming?
At a 5.5 pH, 25% on Nitrogen and Potassium is not available to crops. Over 50% of phosphorus is not plant available.
Seed selection is important, but pH is more important. At a 5.7 pH you lose 17% of your corn’s genetic potential, before it’s planted and it doesn’t matter what hybrid.
Lime price have remained relatively stable compared to other fertilizer products.
Does it really make sense to continue to dump high priced acid and salty fertilizer on you ground when it cost $400-500 per ton? So you bought it a little cheaper in the fall, if 25-50% is not available to your crop, that’s like paying more up front for less.
We know that proper soil sampling, keeping pH above 6.5 (for corn), having proper levels of micro and secondary nutrients (not adequate) will produce higher yields for less than blasting the soil with P and K, even when it was cheap!
The Blogronomist is maintained by Craig Dick, head blogronomist and VP of Sales and Marketing. Here you will find a wide array of blog articles from Craig and expert guests on topics related to soil and crop health, farming, and so much more. If it’s not here, ask us!