ASK THE AGRONOMIST BLOG

Stine’s Ask the Agronomist blog is your source to the latest information from our expert team, including advice and insight on field practices, product recommendations, planting and harvest updates, new technologies, crop management, innovative research and information about how to keep your farm operation running smoothly year round. 

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    Agrisure Duracade® Continues on Path to Worldwide Approval

    May 02, 2018

    Posted by Stine Seed in Products

    In April, the European Food Safety Authority (EFSA) issued a positive scientific opinion for the Agrisure Duracade® trait. This means the EFSA has completed its scientific evaluation of the trait for food and feed and has recommended that the EU should grant full import approval.

    “This announcement is very good news,” says David Thompson, national sales and marketing director for Stine. “Although we still must wait for final approval, receiving this positive scientific opinion brings us one step closer to getting full approval and means that the path to approval is predictable.”

    This advancement is exciting news for Stine corn customers throughout the United States. When combined with Stine’s high-yielding corn genetics, the Agrisure Duracade trait offers growers a powerful all-in-one system for corn pest management. For 2019, Stine is advancing a full complement of Agrisure Duracade 5222 E-Z Refuge brand corn, which provides the industry’s most complete coverage against above-ground pests in addition to boasting two modes of action for corn rootworm control. The E-Z Refuge designation means the hybrids are conveniently packaged with five percent integrated in-bag refuge. Learn more about Stine Agrisure Duracade 5222 E-Z Refuge brand corn here.

    While the Agrisure Duracade trait is approved for sale in the United States and Canada, and for export to most international markets, EFSA’s announcement does not mean that the trait is fully approved worldwide. This announcement is simply a positive step forward in the process. So, for now, growers purchasing corn containing the Agrisure Duracade trait must sign an Agrisure Duracade Grain Use Agreement at the time of seed purchase to verify they will deliver the resulting grain to an accepting location or utilize it for livestock feeding. For the latest on the approval, contact your Stine sales representative. To learn more about specific locations accepting Duracade, contact Gavilon Grain at (844) 559-1500.

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    Spring Weather Got You Down?

    April 20, 2018

    Posted by Mike Smith in Planting

    If you’re reading this, chances are wet, cold and winter-like weather has decided to make another appearance in your region this spring. Areas of the northern Corn Belt saw feet, not inches, of snow recently, and unseasonal cool temperatures have kept most growers out of the field in other parts. Our growers in the South even experienced weather-related delays. Needless to say, this spring has not been kind to our early planting plans, but not all hope is lost to achieve high yields this year. Consider these tips.

    • Don’t stray from your hybrids just yet. Corn grows according to Growing Degree Units. Once planted and out of the ground, it’s reasonable to assume that we will accumulate heat units faster than in normal seasons because of the late time frame with a faster warm-up period. Because of this, growers should consider sticking with their optimum maturity window for their region. If adjustments are made, they should be minor. For example, instead of planting a 100-day hybrid, a grower might consider planting a 95-day hybrid. Another consideration for growers in the southern regions would be to plant their full-season hybrids first (112–116 days) and then move to their shorter season maturities toward the end of planting.
    • Don’t worry about soybeans. When it comes to soybeans, no changes are warranted because soybeans are a daylight-sensitive crop. Normal maturities should be planted.
    • Be patient — don’t plant into cool, wet soil. Planting into cool, wet soil can result in problems that can last all summer. These include:
      1. Sidewall compaction — Sidewall compaction can greatly reduce root penetration and development. This will cause issues later during the growing season when moisture and nutrient uptake will be affected, causing stunted plants and yield loss.
      2. Soil stratification — Soil stratification can occur when planting into wet soil and causes immobile nutrients like phosphorus and potassium to collect in layers within the soil, which may be above or below the root zone of the plant.
      3. Extreme chilling — Freshly planted seed can imbibe in the cold moisture and cause extreme chilling, which can lead to a host of issues during growing season, including causing the seed to become non-viable and not germinate.
      4. Crown Stress — Cold water being translocated through the crown of the plant can also cause crown stress, which damages the vascular tissue of the corn that is needed for grain fill to move moisture and nutrients to the plant. Plants impacted by crown stress often display symptoms of drought stress or nutrient deficiency.
      5. Deoxygenation — Deoxygenation becomes an issue when seed is planted into waterlogged soil. This occurs when all the air space in the soil structure has been squeezed out by moisture. After heavy rains, when soil is saturated, make sure that proper germination has occurred and that the seedlings are beginning to elongate toward emergence.

    A good test to determine if your soil is dry enough for planting is to remove soil from 5–6-inch depth and form it into a ball. If the ball crumbles in your hand when squeezed, it is optimum for planting. However, it the ball fractures in chunks, it is still too wet and caution should be used. 

    • Carefully weigh your last-resort options. If planting into cool, wet soils is your last resort, I recommend growers use a starter fertilizer to encourage good root development and overall plant health. Hybrid selection is also important. Choose hybrids that have a proven performance germinating and emerging in cool soils with very good early vigor scores. Planting depth should remain normal, between 1.5–2-inch range. After planting, perform a short strip dig to make sure that seed is at a depth around the knuckle of your index finger. This should have you pretty close to the proper seeding depth for maximum emergence and the necessary root growth the plant will need during the growth season.
    • Scout all season long. Insect pressure could be greater because soils will warm faster than in normal years. Additional scouting should be considered.

    For more tips this planting season, contact your local Stine sales agronomist.

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    Stine LibertyLink® Soybeans for Weed Control

    April 18, 2018

    Posted by Mike Eckels in Products

    Two of growers’ biggest concerns are yield and weed control, and to achieve high yield, growers need to start with clean fields. Weeds can be a crop’s biggest competitor, fighting for the same nutrients, water, light and other elements vital to a plant’s growth process. Because weeds can grow faster than most crops, they need to be tackled early, which is why many growers are turning to Stine® LibertyLink® soybeans.

    Glyphosate-resistant weeds are becoming more problematic in my region in north central Missouri and across the United States. With Stine’s LibertyLink soybeans, growers get built-in tolerance to Liberty® herbicide, providing excellent, season-long crop safety. The LibertyLink seed-herbicide system offers fast-acting weed control and is the only nonselective alternative to glyphosate-tolerant systems. The system also controls 120 broadleaf weeds and grasses, including ALS- and glyphosate-resistant weeds.

    Stine LibertyLink soybeans allow growers to rotate nonselective herbicides to effectively manage weed resistance and preserve the utility of herbicide-tolerant technologies. That being said, when planting LibertyLink soybeans, I recommend growers put down a pre-herbicide in the fall or spring and then come back with 32 ounces of Liberty, three pounds of AMS and 20 gallons of water as a post-application. This combination will result in some of the cleanest fields you can get.

    To learn more about Stine’s LibertyLink soybeans, contact your local Stine sales representative or visit our website.