Researchers study impacts of winter grazing

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 ...

Carbon cycle in microbial ecosystems of biological soil crusts

As greenhouse effects become increasingly prominent, soil carbon has been a major focus of research on climate change. Soil microorganisms are the key groups that drive soil carbon transformation. Due to the complexity of ...

Improved maize yields in Tanzania

Given the extra cost, it's understandable that Tanzanian farmers living below the poverty level may be both unable and unwilling to invest in chemical fertilizers to address soil deficiencies. But research from a multidisciplinary ...

Measuring nitrogen in green manures

Both chemical fertilizers and cover crops can help build the nitrogen content in soil. But cover crops come with many other benefits, like improving soil structure and boosting beneficial microbes.

Heavy metals make soil enzymes 3 times weaker

Heavy metals suppress enzyme activity in the soil by three to 3.5 times and have especially prominent effect on the enzymes that support carbon and sulfur circulation, according to a soil scientist from RUDN, together with ...

New test measures corn nitrogen needs with greater accuracy

The soil fertility tests farmers have used for decades to measure nitrogen levels don't account for the vast majority of the nitrogen in soils, so Iowa State University scientists helped develop a new test that yields more ...

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