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Don’t Forget Zinc when Applying Phosphorus to Your Farm

Phosphorus (P) fertilizer is often added to cropping systems to increase yield, but growers should not overlook the importance of micronutrients like Zinc (Zn). Understanding some of the nutrient interactions that affect nutrient availability can help with management decisions like fertilizer source.

MicroEssentials® S10® Phosphorus Uptake (Greenhouse Trial)

Quantify the increase of phosphorus (P) uptake with MicroEssentials® S10® (12-40-0-10S) applied to corn compared to DAP (18-46-0) and DAP-based blends that supply the same rate of nitrogen (N), P and sulfur (S).

It's Time to Reevaluate Canola P Fertility!

Are you seed-placing your phosphorus (P) and basing application rates on seed safety rather than crop requirements? You may be leaving yield on the table. Recent research out of the University of Manitoba examining seed-safe rates of P and sulfur (S) in canola is showing that P applied at rates based on seed safety may not be adequate to maximize canola yields.

MicroEssentials® SZ® Phosphorus Uptake in Corn

Evaluate the yield response and phosphorus uptake of MicroEssentials® SZ®

Soil pH Levels Indicate a Need to Adjust P and Zn Fertility in Soybeans

Raising a productive crop depends greatly on the nutrients a plant is able to access during its life cycle. Many factors influence the availability of those nutrients, including soil pH. For instance, as soil pH increases, the availability of phosphorus (P), zinc (Zn) and iron (Fe) decreases. Although variety selection can help manage iron deficiency in soybeans, fertilizer application is still needed to address the P and Zn deficiencies prevalent in high-pH soils.


New Study Offers Insight Into Phosphorus Availability

Australian researchers recently studied the reaction of both liquid and granular phosphorus (P) fertilizers in soil that was either dry or wet (at field capacity). They measured the movement of P from the application site as well as the amount of P that was in available and non-available forms.


New Study Can Help Growers Maximize Phosphorus

A recent study of phosphorus (P) reaction to dry and wet soils offers insight about the fate and availability of phosphorus fertilizer when applied to dry soils¹.

Availability of Phosphorus Fertilizer

A recent study of phosphorus (P) reaction to dry and wet soils offers insight about the fate and availability of phosphorus fertilizer when applied to dry soils.


Managing Phosphorus Soil Test Values

Soil testing is the farmer’s best tool for determining and managing phosphorus (P) levels in their fields. Testing can confirm increases in soil test phosphorus resulting from application of P and also document how much crop removal has decreased soil test phosphorus.

Phosphorus Fertility – Do We Need to Look Deeper?

When measuring phosphorus (P) availability in the soil profile, agronomists tend to focus on the first few inches of topsoil. After all, P fertilizer is applied to the upper soil layer, reduced tillage limits soil mixing, most roots are present at upper depths and P is relatively immobile in the soil. So, the top layer should be where plants take most P from, right? Not entirely.