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2019 Seed Catalog2019 Seed Catalog

Seed Catalog




    2018 Corn Prices

    2018 Soybean Prices

    2018 Sorghum Prices

   2018 Cover Crop Prices

    2017 Spring Price Sheet


2017 Corn Plots

2017 Soybean Plots

2017 Milo Plots



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Sunn hemp

    Sunn hemp is a warm-season legume that requires good drainage, and tolerates poor, sandy, droughty soils.  It is a high biomass crop and can also fix high levels of nitrogen.  This is a tall herbaceous shrubby annual 3-9’ tall.  It has a strong taproot with many well-developed lateral shoots and numerous branched, lobed nodules up to 1” in diameter with stems up to ¾” in diameter.  Warm temperatures with moderate humidity are best.  It is less demanding of soil fertility than cowpea.  It can produce over 5,000 pounds of biomass and over 100 pounds of nitrogen per acre in 8-12 weeks of frost free growth.  It tolerates soil pH levels from 5 to 7.5. 

    In the central plains it has been successfully seeded up to 2-2.5” deep.  It looks to be a natural fit between two wheat crops, or preceding corn the following year.  Possibly cotton, grain sorghum and sunflowers could be added to that list.  Sunn hemp suppresses weeds, slows soil erosion, and reduces root-knot nematode populations.

Growing sunn hemp.

Sunhemp after a freeze.

Kauffman Seeds, Inc.Kauffman Seeds, Inc.

Midland Genetics GroupMidland Genetics Group