13
Mar
Foliar Fertilizer Soybeans Timing To Spray. Time of the day. However when droplets are too small less than 100 microns a drift might occur. While it is okay to apply P or K directly ahead of the soybean crop research has demonstrated that soybean is less sensitive to application timing within a two-year cropping system and will provide maximum yield as long at the rate of P or K applied to the preceding crop. In any case the fertilizer program has to be based on a reliable yield.
To avoid leaf burn foliar boron application rates should be less than 05 pounds per acre and do not spray when temperatures are high and the crop is under moisture stress. Treatments involved single or double applications spaced about 10 days of 2 to 6 galacre sprayed during the V5 to V7 growth stages. Also spraying Cobra will help reduce white mold issues but spray that separate from fungicide. The prescription foliar fertilizer mixture increased soybean yields at three of the 20 sites 15 of the time. Foliar fertilizer has been hit and miss in soybeans. This mix will take time to dissolve so slowly mix and agitate the mixture.
But now you may be able to sell your crop for 10-11 if you still have any in storage and the future prices are reflecting record acreages.
The foliar fertilizer mixtures were based on composite soil samples collected from the trial areas. Questions often arise in June about emergency or catch-up fertilization for soybean. Micronutrients on the other hand can prove beneficial as a foliar feed but only if deficiency symptoms exist Figure 3 and Figure 4. But now you may be able to sell your crop for 10-11 if you still have any in storage and the future prices are reflecting record acreages. Most producers are not worried about this because they typically apply adequate amounts of phosphorus P and potassium K fertilizers before planting soybean or apply sufficiently large amounts before the previous years corn for both the corn and soybean crops. At more than 95 of those sites when we applied various foliar fertilizer products at R3 we saw no impact on soybean yield in yield environments averaging 20 to 80 bushels per acre.