Agronomy eUpdate September 14th, 2023

Issue 974

In-furrow fertilizers for wheat

Wheat is considered a highly responsive crop to band-applied fertilizers, particularly phosphorus. The application of phosphorus as a starter fertilizer can be an effective method for part or all the phosphorus needs. Wheat plants typically show a significant increase in fall tillers and better root development with the use of starter fertilizer.

wheat fertilizer starter fertilizer phosphorus soil fertility in-furrow 

Soybean seed filling and dry down rate before harvest

The weather conditions expected for the last half of September will be critical for soybeans as related to seed filling and determining final seed weight. Final maturity is defined as the formation of the black layer in the seeds. The dry-down rate will depend on the maturity group, planting date, and weather conditions experienced during the latter part of the reproductive phase.

soybeans drydown harvest 

Grain sorghum yield potential: An on-farm calculation

Estimating crop yields before harvest can be difficult. However, having these estimates is valuable information for producers as it helps them to make relevant decisions on inputs. As the sorghum crop gets closer to maturity, yield estimates will be more accurate. This article walks through an example of an on-farm calculation for estimating sorghum yield.

sorghum grain sorghum yield potential yield estimates 

Grain sorghum yield potential: Understanding the main yield components

In order to best estimate the yield potential of grain sorghum, you need to understand the main plant components of yield. The main yield-driving factors are number of plants, tillers per plant, seeds per head, and seeds per pound. This article discusses each of these factors and their relative importance to the final yield of sorghum.

grain sorghum yield potential sorghum yield components 

Fall soil sampling; Sample collection and submission to K-State Soil Testing Lab

Soil testing provides producers and homeowners with important information concerning the fertility status of the soil. This information can help produce better crops and reduce input costs by guiding management decisions. The K-State Soil Testing Lab offers many affordable options for assessing the soil fertility status of your soil.

soil sampling soil testing Soil Testing Lab 

The challenge of collecting a representative soil sample

Collecting a representative soil sample from your area of interest is critical to ensure the best soil testing results. Most fields are highly variable even over short distances. This makes collecting a representative soil sample more of a challenge. This article has information on the best soil sampling practices.

soil sampling soil testing fall soil sampling 

War Against Weeds podcast enters its sixth season this fall

The War on Weeds podcast has officially kicked off its sixth season. There are over 90 past episodes that can be accessed for free. Topics for season six include weed management on rangelands, harvest weed seed control practices, site-specific herbicide applications, and more.

weed control podcast War on Weeds 

Kansas Ag-Climate Update for August 2023

The Kansas Ag-Climate Update for the month of August is here! This report summarizes the weather and associated agronomic impacts across the different cropping districts of Kansas. The month of August saw some excessive heat waves. Check out this article for the rest of the weather story of August.

weather Climate