It really depends on the weather and your seed. If you look even the best soybean seed is usually only 90-95% germination. So for your final of 150K per acre you would need to adjust your planted population up to reflect the different germination rates. Personally I am not a fan of lower populations just to "save" seed costs. I usually like 170-180K finals. I have found that they will grow better beans year in and out at that higher rate. The higher rate does not help much in a perfect growing year but it sure can help in years when the bean plants are stressed.
I played around 4-5 years ago and found out that the 150K final rate on lower quality ground, in stressful years, can easily be 10-15 BPA lower in yield than the higher plant populations. When we where planting public varieties we usually drilled the beans at 220K planting rates.
So on our ground here I will take more plants per acre on soybeans and corn as well. I like to have final stands on corn to be above 33K per acre too.
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Today's Featured Article - The Ferguson System Principal An implement cutting through the soil at a certain depth say eight inches requires a certain force or draft to pull it. Obviously that draft will increase if the implement runs deeper than eight inches, and decrease if it runs shallower. Why not use that draft fact to control the depth of work automatically? The draft forces are
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