Controlling glyphosate-resistant marestail in soybeans has been a big challenge for Kansas no-till producers in recent years. Because soybeans are generally planted later in the season, and marestail generally germinates in the fall or early spring, application timing and weed size are critical factors to successful control. Continue reading “Controlling Marestail in Soybeans”
Tag: Agriculture
Weed Control Strategies in Grain Sorghum
Severe grass and broadleaf weed pressure will reduce grain sorghum yields and can make harvest very difficult. Good crop rotation and herbicide selection are essential components of managing weeds in grain sorghum.
In a wheat-sorghum-fallow rotation, it is essential that broadleaf and grassy weeds do not produce seed during the fallow period ahead of grain sorghum planting. It is equally important that winter annual grasses are not allowed to head in spring, before the sorghum is planted. Continue reading “Weed Control Strategies in Grain Sorghum”
Double Crop Pig Weed Control
Getting good control of Palmer amaranth and common waterhemp in Kansas has become more of a challenge in recent years. Many populations are now resistant to either glyphosate, triazine, ALS-inhibitor herbicides, HPPD-inhibitor herbicides, PPO-inhibitor herbicides – or a combination of those modes of action. As wheat harvest approaches over the next few weeks in Kansas, producers should plan now for good weed control ahead of double crop soybean. Continue reading “Double Crop Pig Weed Control”
Soil Compaction
Conducting field work includes planting, tillage, or traffic in general. After wet weather, it can cause soil compaction, and in particular sidewall compaction in the seed furrow. The worst cases of sidewall compaction are seen after a field has been planted when the soil was too wet, followed by a period of dry weather. Continue reading “Soil Compaction”
2017 In-Depth Wheat Diagnostic School Speaker Schedule
The 2017 In-Depth Kansas State Diagnostic Wheat School, will occur in the Experiment Field in Hutchinson on May 10-11.
This will help you in depth in all aspects of weed control, soil fertility, disease management, insects and summer cover crops. Registration is NOT needed.
Note: This is a 1.5 day event where CCA/CEU credits will be available. Continue reading “2017 In-Depth Wheat Diagnostic School Speaker Schedule”
Wheat Freeze Update
Temperatures over the weekend of April 22-23 dropped below freezing and into the lower 30’s for most of the state. In a few specific locations in southwest Kansas, temperatures were in the upper 20’s in the early morning of April 23, and were well below 32F for as long as 7.3 hours. In low areas of the fields, temperatures will typically be lower than the officially recorded temperatures.
The effects of a freeze event to the wheat crop will depend on Continue reading “Wheat Freeze Update”
Current Wheat Conditions
The wheat crop continues to develop at a fast pace across the state. The most advanced fields in far southeast corner of the state are between boot and flowering, and the majority of the region is already at or past flag leaf emergence. Parts of south central Kansas and the northern-most counties in southeast Kansas are mostly now at flag leaf emergence or at boot. Wheat in central Kansas and in fields that emerged last fall in southwest Kansas are past the second node and approaching flag leaf emergence. Northern Kansas and northwest Kansas have the majority of the fields now at jointing growth, or just past it.
The major issues being faced across Kansas in the current wheat crop involve viral diseases (mostly wheat streak mosaic in western Kansas and barley yellow dwarf in central Kansas), stripe rust, and nitrogen and sulfur deficiencies which are still showing up in many Kansas wheat fields. Continue reading “Current Wheat Conditions”