Agronomy

For farmers and researchers, a field is often like a giant chemistry set. The timing and amounts of different fertilizers to supply nutrients can interact with each other, the soil, and crops.

Corn is a classic American crop. First cultivated in North America thousands of years ago, it now blankets American farmland from coast to coast. The U.S. grows more corn than any other country. And the grain is used for everything from tortilla chips to cow feed, to biofuel.

Earth’s carbon cycle works on a global scale. But it can be affected by the tiniest of organisms: soil microbes. These microbes decompose organic matter like plant litter and dead organisms, and create simple carbon compounds. These simple carbon compounds can then be used by other organisms, or turned into gases (like carbon dioxide) and released into the atmosphere.

If you’re a gardener, you know that planting seeds in the ground doesn’t always mean you’ll have a good yield at the end of growing season. On a personal level, this can be disappointing. Farmers are in charge of growing dozens to thousands of acres of food. And, they face the same variability in the planting, growing, and harvesting processes as gardeners do.

On average, Americans eat more than 50 pounds of beef each year (according to USDA estimates). But what do beef cattle eat? In the eastern United States, beef cattle often eat tall fescue, a “cool-season” grass. As the name suggests, cool-season grass grows best in temperate conditions: temperatures between 65 and 75 degrees Fahrenheit and abundant rainfall.

Undeniably, corn is one of the world’s most important crops. From feeding humans and livestock, to its many industrial uses, humans have been growing it for approximately 10,000 years.

Cotton is an important crop grown around the world, such as in countries like the United States and Uzbekistan. When a fungus began to harm cotton in both countries, it brought together their scientists for an innovative research collaboration.

For more than four decades, biosolids have been applied to land and studied by researchers for many useful purposes. Biosolids are a product of the wastewater treatment process. Yes, that means sewage. However, the sewage is treated carefully to ensure it has beneficial properties and is not harmful.

Did you know one of the oldest life forms on Earth can be found in your backyard? Soil nematodes have been thriving in habitats around the world for at least 400 million years. Even though they are only 1/500th of an inch wide and 1/20th of an inch long, these worm-like animals are an important part in almost every ecosystem.

Winter grazing is part of what is called an integrated crop-livestock system. It is a process where livestock, such as cattle or goats, are allowed to graze a crop field during the winter. It is more common in climates with mild winters. Rather than eating the cash crop the farmer sells, the livestock eat the cover crop that was planted to grow over the winter.