• Cornell University: Industrial Hemp.
• Penn State Extension: Industrial Hemp Production.
• University of Vermont Industrial Hemp Research Program.
• Purdue University Hemp Project.
• Hemp Biology.
• Crop Physiology of Fibre Hemp. [pdf]
• Effects of Nitrogen Fertilizer Rate, Timing and Herbicide Use on Industrial Hemp.
• S1084: Industrial Hemp Production, Processing, and Marketing in the U.S.
• Hemp Husbandry.
• Manitoba Agriculture Industrial Hemp Production and management [ Weights and other values ]
• Industrial Hemp in the U.S. Status and Market Potential [PDF].
• Hemp Genetics International.