|
There might be a benefit seen however, test studies have shown the salts in the P and K need about 90 days to breakdown to be usable for the bean plant. That puts the plant too mature for full benefit. About 4 years before the "N" studies came out showing a possible yield increase applied at mid season we were applying about 50 units at planting to help corn stalk decomposition (which didn't help). We saw no yield increase and even got into an argument with the fert dealer over the issue (no longer use him anymore). What has worked well for my operation is a fall application of 7-25-60 broadcast. Over the last 5 years (last year excluded) bean yields have been about 7-10 bushel over the previous 10 year average. When I worked in the commercial fertilizer industry, one farmer had fall plow down for corn, then switched to beans. Although it wasn't cost feasible of the rate applied, was by far the best bean crop in the area. Work close with your dealer and soil samples on "starter" for beans. And be careful using the in row method of application. Beans can't handle the direct fertilizer like corn can.
| 
