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Plan Ahead to Minimize Soil Compaction During Harvest
While there is significant uncertainty about this year’s harvest weather, the struggles with previous year soil compaction may still be lurking in corn and soybean fields across Iowa. This article will highlight challenges with wet conditions at harvest and opportunities to minimize the long-term consequences of harvesting fields with wet soils.
How to Minimize Soil Compaction During Harvest
Rain events during September and October have created challenging conditions not only for timely harvest of corn and soybean crops but also for the impact harvest will have on the soil. These wet conditions coupled with a drop in air temperature will slow harvest operations. Soils are too wet for traffic from heavy equipment, making them susceptible to compaction during harvest operations. When soils are near saturated conditions, heavy equipment loads weaken soil structure where water works as lubricant, leading to the collapse of soil aggregates.
How to Minimize Soil Compaction During Harvest
Some areas have received several inches of rainfall since Sept. 1, during a time when corn and soybean water use declines significantly. This lack of water use by the plant creates saturated soil conditions susceptible to compaction this fall. High soil moisture increases soil compaction caused by field traffic and machinery. Over the past decade the size of Iowa farms has increased, leading to larger and heavier equipment.
However, equipment size is only one factor among many causes of the soil compaction problem.
Top 10 reasons to avoid soil compaction
This spring consisted of wet field conditions for many regions across Iowa during planting season. When soil moisture is at or exceeds field capacity, there is an increased potential for soil compaction, particularly at topsoil depths. Soil compaction at planting time can impact root growth and development for the rest of the growing season, and can be a serious problem for Iowa farmers. However, with proper field management, compaction can be minimized.
Soil Compaction and What You Can do About It
This spring consisted of wet field conditions for many regions across Iowa during planting season. When soil moisture is at or exceeds field capacity, there is an increased potential for soil compaction, particularly at topsoil depths. Soil compaction at planting time can impact root growth and development for the rest of the growing season, and can be a serious problem for Iowa farmers. However, with proper field management, compaction can be minimized.
13 reasons for uneven corn
I've been getting a lot of calls about uneven corn. Uneven corn can be caused by many factors, and there are usually multiple variables in play. Since a lot of folks have asked, here are some reasons I am seeing uneven spots in fields around west central and southwest Iowa.
Cover crops provide grazing opportunities
Cover crops have become quite popular in recent years, not only from a soil conservation and water quality perspective, but also due to their potential to be an additional forage source for livestock producers. To better understand how cover crops can be used as a potential forage source, Iowa State University Extension and Outreach started a grazing cover crop project in the fall of 2015 at the McNay Research Farm near Chariton and the Allee Research Farm near Newell.
Be aware of potential problems with fall tillage
By: Mahdi Al-Kaisi
Soil tillage increases the potential for soil erosion and reduces water infiltration and subsoil recharge. Keeping crop residue on the soil surface this fall along with cover crops can increase water infiltration, reduce soil erosion, sediment and nutrient loss, contribute to soil organic matter, and improve soil quality. Here are some things to keep in mind when planning for the choice of tillage practice this fall.
How and Why to Avoid Soil Compaction
The most effective way to minimize soil compaction is to avoid field operations when soil moisture is at or near field capacity. Ten good reasons to avoid soil compaction are listed in this article.