Agronomy eUpdate September 29th, 2022

Issue 926

Control annual weeds with fall-applied herbicides ahead of corn and sorghum

With row crop harvest well underway, it is time to start planning fall herbicide applications. Herbicide applications in late October through November can improve control of difficult winter annual weeds. However, it is important to remember that fall-applied herbicides may limit your crop options in the spring.

sorghum fall-applied corn annual weeds 

Control woody plants on rangeland: Basal bark and cut-stump herbicide applications

Late summer and fall can be an excellent time to treat unwanted stands of woody plants. Scattered stands of individual trees should either be treated individually using the basal bark method (for labeled plants less than 4-6 inches in diameter) or the cut stump treatment method.

herbicide woody plants rangeland 

Ammonia treatment of low-quality forages

Ammonia treatment is a very effective means of markedly increasing the feeding value of low-quality forages. Most forages with less than 5 percent crude protein and 45 percent TDN (total digestible nutrients) on a dry matter basis are candidates for ammonia treatment. Keep in mind that the costs associated with this process have increased and this may not be the best cost-effective option.

Small grain forage options for this fall

In 2022, forage production was limited during the summer, and filling the gaps during the fall/winter will be a challenge. Small grain forages can be a profitable option for producers. They can be planted in the fall and either terminated or grazed out in the early spring.

forage small grains 

Kansas Bankers Association Conservation Awards Nominations due Nov. 11

Nominate a deserving Kansas producer or landowner for the 2022 Kansas Bankers Association Conservation Awards Program. In 2021, over 200 Kansas producers and landowners were recognized through this program. Nomination forms should be submitted by November 11.

conservation award