Illinois Soil Nitrogen Test measures microbial nitrogen

Contrary to the prevailing view, cereal crops derive the majority of their nitrogen from the soil, not fertilizer. Soils differ considerably in microbial activities that determine nitrogen-supplying power, and these differences ...

Balancing nitrogen for sunflowers

Sunflowers have many uses. They are used for floral arrangements, animal feed, biofuels, and even food for us.

Nitrogen loss in soils unearthed

Researchers from The University of Western Australia have challenged the current understanding about which microorganisms carry out important nitrogen transformations in semi-arid agricultural soils.

Straw residue helps keep nitrogen on the farm

Scientists are exploring ways to reduce non-point pollution from agriculture. A new study finds that using straw residue in conjunction with legume cover crops reduces leaching of nitrogen into waterways, but may lower economic ...

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