Tag Archives: Nitrogen

Testing for Residual Soil N can Save $ – Corn

Two trials were conducted in 2017 the objective to evaluate the effect of reducing by the amount of residual nitrogen found in soil tests at depths up to 24 inches. Each of these trials were conducted with large plots in grower fields. What follows is the research report for the Corn test. (printable version) Evaluation of Reducing Nitrogen Fertilizer Application by Residual Soil Nitrogen Found to Depths Of 24 Inches in Corn Investigator: Stephen Biles and Geri Kline Cooperator: Clay Brett                            Summary A field research trial was conducted… Read More →

Testing for Residual Soil N can Save $ – Cotton

Two trials were conducted in 2017 the objective to evaluate the effect of reducing by the amount of residual nitrogen found in soil tests at depths up to 24 inches. Each of these trials were conducted with large plots in grower fields. What follows is the research report for the Cotton test. (printable version) Evaluation of Reducing Nitrogen Fertilizer Application by Residual Soil Nitrogen Found to Depths of 24 Inches in Cotton Investigator: Stephen Biles and Geri Kline Cooperator: Shane May                           Summary A field research trial was conducted to… Read More →

Soil Testing for the 2017 Crop

Once the 2016 crop has been harvested, it is time to look at testing the soil for the nutrient content required for the next crop.  Extensive research has been done on soil testing over the past 20 years resulting in the recommendation of testing soil annually for nitrogen content to a depth of 24 inches. Sampling conducted recently in the Port Lavaca area found residual nitrogen levels as high as 134 lbs available nitrogen per acre.  In fields with clay or loam soils, the amount of nitrogen found… Read More →

Mid-Coast Soil Sampling Program

We are conducting a soil testing program this fall to assist farmers with their soil fertility decision making. We will sample fields to a depth of 24 inches and have nutrient analysis done at the Texas A&M AgriLife Extension Service Soil, Water and Forage Testing Laboratory. The cost for participation in this program is as follows: • $50 per field for fields 100 acres or less in size. ($0.50 per acre over 100 acres) • Plus $14 per sample for routine analysis and residual nitrogen. Contact the Stephen… Read More →

Soil Testing for Proper Nutrient Management

This is the time of year to sample soils for proper application rates of fertilizers.  In 2013, we tested soils on 53 Calhoun County fields and found soil nitrogen levels ranged between 9 and 134 pounds of available nitrogen in the upper 18 inches of soil. The potential savings in fertilizer cost ranged from $4.24 – $60.30 per acre.  The only way to know the nitrogen level in your fields is to test the soil. Field research was conducted by Drs. Dennis Coker and Mark McFarland, Texas A&M… Read More →