Growers may consider reducing fertilizer rates for various reasons such as lower crop prices, higher input costs, lower than expected yields, or uncertainty of profitable yield responses.
Organic matter (O.M.) plays a significant role in crop production and soil health. Building and maintaining a healthy soil that has more O.M. can aid in providing a stronger foundation for higher crop yields and resiliency to environmental stresses.
Sulfur (S) is an essential element for all crops. Sulfur deficiency has become more common due to decreased atmospheric inputs, higher yields, and a shift to high-analysis fertilizers with little or no S. Commonly used S fertilizer sources contain either sulfate-S (SO4-S) or elemental sulfur (ES).
Five things to consider to get your growing season off to the best start possible.
Evaluate the yield response of soybeans to Aspire®, MOP + Granular B blend and a Control treatment.
Evaluate the yield response of Aspire® with Boron (0-0-58-0.5B) compared to MOP (0-0-60). Compare the yield response of Aspire® to a MOP + Boron (B) blend applied at multiple application rates.
Evaluate the yield response to Aspire® with Boron (0-0-58-0.5B) compared to MOP (0-0-60).
In the mid-1970s, Dr. Robert Westerman banded 18-46-0 with wheat at planting in a low-pH soil near Haskell, Oklahoma. The impact was immediately evident. Soon after, Oklahoma State University published an extension brochure titled “Banding Phosphate in Wheat: A Temporary Alternative to Liming” (Figure 1). This method was a temporary solution for the significant amount of Oklahoma winter wheat that was either too far from a reliable lime source or under a short-term-lease contract.
The growing season of 2014 has the potential to yield a record harvest in many areas of the country. With good weather conditions, high soil fertility and a combination of high-yielding varieties, crops look strong and healthy. But there’s more being removed from the fields than just a crop harvest — record yields mean record nutrient removal from the soil.
It’s important that producers not overreact to lower crop prices for wheat by cutting back this fall on phosphate fertilizer if it is needed. Wheat is a highly responsive crop to phosphate fertilizers. At low soil test levels, good profits can be made by using the right rate of phosphorus applied at the right time and in the right manner.
Whether you are growing wheat, canola or corn, you can set the stage for a healthy growing season and maximum yield with early-season treatments and starter fertilizer.
A recent study from DuPont Pioneer outlined the continuous-corn yield penalty, and the causes for that penalty. Over a six-year period, the study found that continuous corn yields, on average, 25 bushels per acre fewer than corn that follows soybeans.