Category Archives: Soil Test
Soil Testing Principles- Part IV
This item is adapted from an AgriLife submission to Texas Grain Sorghum Association’s “Sorghum Insider” Calvin Trostle, Ph.D., Professor & Extension Agronomist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu December 2023—Part IV (Part 5 in a future Row Crops Newsletter) Eight Soil Test Pointers for Texas Grain Sorghum: Part I: What is your soil test lab’s philosophy of nutrient provision? Part II: What does your soil test lab base fertilizer recommendations on? Part III: Do you use a soil test lab that is… Read More →
Soil Testing Principles- Part 3
This item is adapted from an AgriLife submission to Texas Grain Sorghum Association’s “Sorghum Insider” Calvin Trostle, Ph.D., Professor & Extension Agronomist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu Part III (Part 4 in a future ‘Texas Row Crops Newsletter’) Eight Soil Test Pointers for Texas Crops: Part I: What is your soil test lab’s philosophy of nutrient provision? Part II: What does your soil test lab base fertilizer recommendations on? Part III: Do you use a soil test lab that… Read More →
Keeping Current with AgriLife Extension Test Lab Submittal Forms
This item is adapted from an AgriLife submission to Texas Grain Sorghum Association’s “Sorghum Insider” Calvin Trostle, Ph.D., Professor & Extension Agronomist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu The Texas A&M Soil/Water/Forage Testing Lab, https://soiltesting.tamu.edu/, is in College Station. It is a public lab that participates in the North American Proficiency Testing program for quality control/quality assurance. There are five types of general tests the Soi/Water/Forage Testing Lab (SWFTL) performs. These are not limited to soil! The types and their direct links… Read More →
Soil Testing Principles–Part 3 of 8, Texas A&M AgriLife
Calvin Trostle, Ph.D., Professor & Extension Agronomist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu Residual (Excess) Soil Fertility Tax Deduction: In order to deduct excess fertilizer on newly purchased or inherited land, what is the best way to compute and document that deduction? Necessary background: On 2/23/2023 Kansas State University Dept. of Agricultural Economics reprinted as an Extension publication a commentary from a law professor blog published on 2/21/2023. This document and the references therein outline a legal means where residual soil fertily at… Read More →
Soil Testing Principles–Part 2 of 8, Texas A&M AgriLife
This item is adapted from an AgriLife submission to Texas Grain Sorghum Association’s “Sorghum Insider” Calvin Trostle, Ph.D., Professor & Extension Agronomist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu Part II (Part 3 in the next Texas Row Crops Newsletter) Eight Soil Test Pointers for Texas Crops: Part I: What is your soil test lab’s philosophy of nutrient provision? Part II: What does your soil test lab base fertilizer recommendations on? Do you use a soil test lab that is out of state?… Read More →
Soil Testing Principles–Part 1 of 7, Texas A&M AgriLife
This item is adapted from an AgriLife submission to Texas Grain Sorghum Association’s “Sorghum Insider” Calvin Trostle, Ph.D., Professor & Extension Agronomist, TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu March 6, 2023 Part I (Part 2 in the next Texas Row Crops Newsletter) Seven Soil Test Pointers for Texas Crops: Part I: What is your soil test lab’s philosophy of nutrient provision? What does your soil test lab base fertilizer recommendations on? Do you use a soil test lab that is out… Read More →
On-Line Calculator to get Texas A&M Soil Test Recommendations based on Other Labs’ Test Values
Dr. Calvin Trostle, Extension Agronomy/TAMU Dept. of Soil & Crop Sciences, Lubbock, (806) 746-6101, ctrostle@ag.tamu.edu Dr. Tony Provin, Extension Soil Testing,/TAMU Dept. of Soil & Crop Sciences, College Station, (979) 845-4816, t-provin@tamu.edu May 4, 2021 Texas farmers have many choices for laboratories conducting their soil analyses. If you work with a fertilizer dealer, they may collect your soil samples, pay for analysis, and draw from the information to make recommendations. This is fine, just know there is a possible conflict of interest (sales). If someone does your soil… Read More →