Resources by Stephen J. Donohue
|Agronomy Handbook, 2000||May 1, 2009||424-100||
|Fertilizing the Vegetable Garden||
The amount of fertilizer to apply to a garden depends on the natural fertility of the soil, the amount of organic matter present, the type of fertilizer used, and the crop being grown. The best way to determine fertilizer needs is to have the soil tested. Soil testing is available through your local Extension agent, through private labs, and with soil test kits which can be purchased from garden shops and catalogs.
|Apr 16, 2015||426-323 (HORT-144P)|
|Trees and Shrubs for Acid Soils||
The trees and shrubs on your new home site are growing poorly, so you take samples to the Extension office and the agent suggests a soil test. Test results show that your soil has a pH of 4.5, which is rated as strongly acid. The agent suggests you either take corrective action to raise the pH or grow different plants. What do the test results mean? What are “acid soils” and what does pH measure? Why does this matter to your plants? How can you correct the situation or what alternative trees and shrubs can you grow?
|Apr 8, 2015||430-027 (HORT-115P)|
|Soil Sampling for the Home Gardener||
This publication explains how to obtain representative soil samples and to submit them for analysis to the Virginia Tech Soil Testing Laboratory.
|Feb 6, 2020||452-129 (SPES-176P)|