Sam Angima

Assistant Dean

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College of Agricultural Sciences Administration

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541-737-3742

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Content by Sam Angima

What is Industrial Hemp?

Industrial hemp was grown as a commodity crop for decades until it was banned in the mid-1930s. Congress decriminalized the crop in 2018, sparking interest in it among growers in Oregon, where hemp can be grown successfully. The plant's uses and restrictions, as well as many frequently asked...

By Richard Roseberg, Silvia Rondon, Jay Noller, Valtcho Jeliazkov, Sam Angima | OSU Extension Catalog

Soil, Seedbed Preparation and Seeding for Hemp

Growers planting a successful commercial crop of hemp for seed, fiber, or resin will follow these guidelines for soil preparation, seeding, and irrigation.

By Richard Roseberg, Valtcho Jeliazkov, Sam Angima | OSU Extension Catalog

Liming Coastal Pastures

Nearly everybody involved in agriculture knows something about soil pH. Broadly, pH is a measure of the hydrogen ion concentration in soil solution which controls the overall suitability for root...

By Sam Angima | Article

Measuring Soil PH

As the summer season winds down, it is time again to start planning for next year’s crop. One of the areas to do inventory is soil fertility. Soil pH is one factor that gauges your plant nutrition...

By Sam Angima | Article

Aminopyralid Residues in Compost

Several farmers and gardeners in Washington State lost most of their vegetable crops in 2010 due to the effects of aminopyralid herbicide residues that originated from composted dairy manure. For more...

By Sam Angima | Article