A $20 UMass Amherst soil test gives gardeners custom advice to improve soil, save money and help plants grow better.
A project starting in central Iowa can help reduce fertilizer application, writes Iowa Agriculture Secretary Mike Naig.
Soil scientist Andrew Margenot holds a jar of soil gathered from Menard County, Illinois in 1948. The University of Illinois professor said he rediscovered the "church of soil" when searching an old ...
One of the most common questions gardeners have is how to fertilize specific plants. Many plants have individual nutrient needs, but for all plants it is impossible to guess at what you need without ...
Far from brown dirt, the Australian National Soil Archive houses 100,000 soil samples — some a century old — that represent a ...
Quick strip tests reveal how much nitrogen is already available in soil and irrigation water, helping you avoid unnecessary ...
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