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ecmn | Kind of a loaded question. But if we look at the function of the seed and the young plant, the kernel is the major source of phosphorus until that plant hits V2 growth stage.
Phosphorus is very easy to get released from the soil, We don't need much phosphorus in the seed trench, so using a 3-18-18 or a potassium acetate of 0-0-20 would be a lot better bang for your buck potentially. Potassium is very difficult to release from the soil and by having a very high quality at a low rate, you might potentially see a good response. Look at everything that potassium does for the plant. At that early stage that potassium acetate is really going to promote root growth. And then it becomes photosynthesis and stock quality...
You're common furrow products use a high phosphorus because it's cheap to produce and none of us are going to test if it is the phosphorus or the potassium that's giving us the response?
I'm not going to pay for phosphorus in the seed trench when we don't need any there. But I will gladly pay for potassium or micronutrients because in our soils them are not as available as phosphorus. | |
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Leaving "P" out or starter fertilizer.
