Science News

Leftovers can be quite valuable. For instance, when soybean seed is crushed and the oil extracted, what’s left is called soybean meal. You’ll want to save this leftover.

Two crops or one? Sometimes, growing two crops simultaneously on the same piece of land – called intercropping – can benefit farmers. But it needs careful planning and resource management.

Soil characteristics like organic matter content and moisture play a vital role in helping plants flourish. It turns out that soil temperature is just as important. Every plant needs a certain soil temperature to thrive. If the temperature changes too quickly, plants won’t do well. Their seeds won’t germinate or their roots will die.“Most plants are sensitive to extreme changes in soil temperature,” said Samuel Haruna, a researcher at Middle Tennessee State University. “You don’t want it to change too quickly because the plants can’t cope with it.”

Did you know carbon comes in blue?

Blue carbon refers to the carbon in oceans and coastal areas. These ecosystems are excellent carbon sinks – they can efficiently absorb and store carbon from the atmosphere.

And with global emissions of carbon dioxide topping 35 billion tons in 2016, carbon sinks are more important than ever.

Living mulch functions like mulch on any farm or garden except — it’s alive. No, it’s not out of the latest horror movie; living mulch is a system farmers can use to benefit both profits and the soil. While the system has been around for a while, scientists at the University of Georgia are making it more efficient and sustainable.

When you picture a horse, you may imagine it grazing contentedly in a grassy pasture. Grazing lets horses move around naturally outdoors and socialize with other horses. And grass is an easily available, nutritious feed that horses like eating. If you have the land, providing pasture for horses is less costly than buying hay.

Soils keep plants healthy by providing plants with water, helpful minerals, and microbes, among other benefits. But what if the soil also contains toxic elements?

Nitrogen can present a dilemma for farmers and land managers.

On one hand, it is an essential nutrient for crops.

Domesticating plants to grow as crops can turn out to be a double-edged scythe.

On the steep farming slopes of China, Bozhi Wu and his research associates are finding ways to improve economic and environmental stability.