What factors affect the rate of dry down in grain sorghum? This is a question on the minds of many producers as harvest draws closer and temperatures drops. Find out more in this article from KSU CROPS.
Pre-emergence herbicide programs for corn were discussed in a recent eUpdate article. The role of pre-emergence herbicides is similar in both corn and grain sorghum, and some herbicides are similar. Read more here from Dr. Sarah Lancaster.
The most critical planting practices affecting yields in sorghum are: row spacing, row arrangement, seeding rate/plant population, planting date, and hybrid maturity. Read more about the best sorghum planting practices from Cropping Specialist Ignacio Ciampitti.
planting grain sorghum seeding rate row spacing hybrid selection
With adequate moisture and high temperatures, Palmer amaranth populations are rapidly growing and causing concern for some sorghum producers in western Kansas. What options to growers have at this point in the growing season? Read more in the article from weed scientist Dr. Vipan Kumar.
To make the best estimate of the yield potential of grain sorghum, you need to understand the main yield-driving factors. What are the primary components that influence grain sorghum yield?
Estimating crop yields before harvest can be difficult. For sorghum, yield estimates can be calculated 3 to 4 weeks after flowering. However the final seed number and seed weight can still change. Estimates are more accurate the closer to harvest.
Grain sorghum maturity is significantly ahead of last year and close to the 5-year average. What effect did the early September cold snap have on crop development? Will the remaining sorghum reach maturity before the first freeze? Read more here from K-State Agronomy.
It is important to check corn and sorghum fields for stalk rot diseases prior to harvest. Stalk rot is a stress-related disease. Any stress on a crop can increase both the incidence and severity of stalk rot.
After a hard freeze, there could be questions regarding prussic acid in sorghum. Prussic acid poisoning is more of a concern when grazing sorghum than when harvested for hay or silage.
Herbicide-resistant grain sorghum has been a topic of conversation for several years. This article will provide an overview of weed management in these herbicide-resistant grain sorghum systems.
As of late December, grain sorghum farmers have access to IMIFLEX™ herbicide to use in igrowth® grain sorghum for the 2021 growing season. Read more about the target weeds, use rates, and rotation intervals in this article.
The results from the 2020 Kansas Performance Tests with grain sorghum hybrids are now available online. These tests provide valuable information on many of the sorghum hybrids marketed in Kansas.
K-State Research and Extension has released the latest Kansas Sorghum Management publication. This comprehensive guide is written specifically for Kansas and includes valuable, up-to-date information on many aspects of sorghum production.
With few post-emergence herbicide options for control of grass species and Palmer amaranthl in grain sorghum, having an effective pre-emergence herbicide program is very important. Learn more about the different soil-applied residual herbicides in this article.
grain sorghum weed control pre-emergence residual herbicides
Shattercane is a summer annual grass weed species commonly present in grain sorghum producing regions, including Kansas. Current research studies in western KS have identified 3 populations of shattercane with low-to-moderate resistance to imazamox.
The most critical planting practices affecting yields in grain sorghum are: row spacing, row arrangement, seeding rate/plant population, planting date, and hybrid maturity. Learn which planting practices are best suited for your location and cropping system.
planting grain sorghum seeding rate row spacing plant population
Pre-emergence herbicides are critical for successful weed management in grain sorghum, especially for difficult to control species like Palmer amaranth. When pre-emergence control efforts fail, learn the best options for Palmer amaranth in sorghum fields later in the growing season.
grain sorghum palmer amaranth post-emergence herbicide resistance
Grain sorghum is in various stages of flowering in the southwest right now. Once flowering begins, growers might want to keep an eye out for sorghum midge. Learn the best way to scout for these pests and how to properly identify midge damage to sorghum.
Estimating crop yields before harvest can be variable, but producers often like to know about the potential yield of their crops. As the sorghum crop gets closer to full maturity, yield estimates will be more accurate because the seed weight will be closer to being set.
In order to best estimate the yield potential of grain sorghum, you need to understand the main plant components of sorghum yield. These components are the main yield-driving factors. Learn about these factors and the roles they play in determining final grain sorghum yields.
Last week, we shared some general information about applying pre-emergence herbicides for kochia control. This article focuses on specific recommendations for fields going to corn or grain sorghum this growing season.
A newly revised K-State Research and Extension publication, Kansas Grain Sorghum Management 2022, is now available online. This comprehensive guide is written specifically for Kansas and includes valuable, up-to-date information on several grain sorghum management practices.
The 2021 Kansas Performance Tests with Grain Sorghum Hybrids report is now online. Performance tests, conducted annually by the Kansas Agricultural Experiment Station, provide unbiased agronomic information on many of the grain sorghum hybrids marketed in Kansas.
Challenging weather conditions in the spring may have resulted in rapidly growing Palmer amaranth in grain sorghum fields. Post-emergence herbicide options in grain sorghum are limited, with the available choices most effective when the weeds are small. This article discusses the pros and cons of key herbicides that can provide control.
Relatively new, cost effective, and environmentally friendly products are available for controlling headworms in sorghum. These are pest-specific viruses, formulated as biological pesticides, that can be applied the same as any foliar insecticide, or delivered via overhead irrigation sprinklers.
Yield estimates prior to harvest can be helpful for producers to make informed management decisions for the crop while there is time before harvest. As sorghum gets closer to maturity, yield estimates will be more accurate. Nonetheless, you can start taking yield estimations three to four weeks after flowering.
In order to best estimate the yield potential of grain sorghum, you need to understand the main plant components of yield. These components are number of plants, tillers per plant, seeds per head, and seeds per pound. The interaction among all four components will determine the actual yield, but a wide range of variation can be expected in all these main yield-driving factors.
It is important to check sorghum fields for stalk rot diseases prior to harvest. Even in fields where lodging is has not yet occurred, producers should be prepared to deal with stalk rot issues. Symptoms generally appear several weeks after pollination when the plant appears to prematurely ripen.
With fall harvest progressing at earlier than normal, favorable wheat prices, and many row-crop acres chopped for silage, producers may consider planting wheat back into freshly harvested summer crop residue, especially if they receive some needed rainfall. There are several considerations when seeding wheat immediately after harvest of a summer crop.
In recent years, a common question from producers is related to the dry down rate for sorghum when approaching the end of the season. The dry down process can be delayed by low temperatures, high humidity, and high grain moisture content at black layer. Learn more in this article from KSU farming systems specialist, Ignacio Ciampitti.
An updated version of the Sorghum Growth and Development poster has been published by K-State Research and Extension. The full-color poster is 20x30 inches, and describes nine stages of growth of the sorghum plant. New features include key management practices associated with each growth stage, updated graphics, and the dry-down progression of the grain until physiological maturity.
This article contains information from the new KSRE publication MF3615 "National Sorghum Yield Contest: A Summary for Kansas". Five years of data were summarized (2013-2017) from the National Sorghum Yield Contest with a focus on Kansas entries. Different management practices impacted sorghum yields in varying magnitudes.
sorghum grain sorghum publication yield estimates Sorghum Yield Contest
There can be considerable environmental variation across Kansas during the growing season for grain sorghum. The most critical planting practices affecting sorghum yield are row spacing, row arrangement, seeding rate/plant population, planting date, and hybrid maturity. Tailoring the right management strategy to your location is critical.
planting grain sorghum seeding rate row spacing planting date plant population