Power Plays for Pod Fill

As a soybean grower, you understand success comes from making strategic decisions at every stage of your crop’s development. While each phase matters, managing the pod fill stage effectively is key to helping plants reach their yield potential. 

Pod fill refers to the period when soybean seeds are actively developing. During this time, numerous stressors such as drought, heat, insects and disease can reduce the number of seeds per pod, decrease seed size and limit your yield potential. That’s why as you move into mid-season, it’s important to have a pod fill strategy in place to help minimize stress and maximize yield potential. 

Plan Ahead for Max Pod Fill 

Pod fill starts at the R3 stage and continues through R6. Creating a strategic plan to optimize pod fill should begin even earlier, during the reproductive stages. I recommend developing your plan during the R2 growth stage, when open flowers are present at one of the top two nodes. Also, consider if your soybean fields have a history of insects and disease. If so, now’s the time to prepare for any needed fungicide or insecticide applications. Tissue samples can also help identify any nutritional needs.

You and your local agronomist should work together to identify the challenges you may face in the field, what solutions are available and which can offer the potential for a strong ROI. This way, when the R3 stage comes around, you won’t be stuck scrambling for solutions — you’ll be ready to implement your plan.

The first pod development stage, R3, is when the beginning pods are about 3/16 inches long and at one of the four uppermost nodes. This is also an important time to apply applications for potential strong returns, making it a critical stage to have input strategies in place.

As the plant enters the R4 stage, or full pod, you’ll see rapid pod growth and the beginning of seed development. Seed growth takes off during R5 as the lant redistributes nutrients to the developing seeds. Finally, the total pod weight is reached at the R6 stage, or full seed. 

Developing Your Plan

Throughout these stages, the plant remains highly sensitive to stress, making it essential to maintain plant health to protect your yield. As you plan this season, here are a few recommendations on what to consider.
 

-    Play 1: Focus on Proper Nutrients

Pod fill is a time of high nutrient demand, and any deficiencies can limit seed size and number. Macronutrients are important during this time, while micronutrients such as manganese can support overall plant health by aiding photosynthesis. Regular tissue samples provide real-time insights and allow you to take proactive corrective actions. If needed, MAX-IN® Ultra ZMB^® Plus and the entire MAX-IN^® portfolio of foliar-applied products offer effective solutions.
 

-    Play 2: Help Reduce Stress  

Healthy, unstressed plants are more likely to retain pods and fill them completely. A regular scouting program during the reproductive stages can help you prevent problems and, if needed, help ensure timely and targeted fungicide or insecticide applications. Consistent monitoring of changing weather and field conditions can also inform the need for additional product applications.  
 

-    Play 3: Enhance Delivery 

As you determine if spray applications are needed, help ensure they can be delivered effectively. Even simple adjustments can make a significant difference. Plants with dense canopies present challenges when it comes to effective application. An adjuvant, a different spray tip or technique may be needed. 

Optimal pod fill is an essential step for reaching your crop’s full yield potential, and early planning is key. So, if you haven’t already, connect with your trusted local advisor to develop a tailored strategy to stay ahead of seasonal challenges.