YIELD RESPONSE OF TOMATOES AND BEANS TO COVER CROPS OVER TIME

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  • 1 Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695
  • 2 Department of Horticulture, Clemson University, Clemson, SC 29634
  • 3 Department of Soil Science, North Carolina State University, Raleigh, NC 27695
  • 4 Department of Horticulture, University of Georgia, Tifton, GA 31793
  • 5 Department of Horticultural Science, North Carolina State University, Raleigh, NC 27695
  • 6 Department of Horticulture, Clemson University, Clemson, SC 29634

Tomatoes and beans were grown in rotation for 4 years with three cover crop treatments (bareground, wheat, and crimson clover) and three nitrogen rates (0, 60, and 120 kg N/ha). Over the course of the study, when no additional N was provided, lowest yields of tomatoes and beans were obtained with the wheat cover crop. With the highest N rate, however, there was little difference in yields of beans or tomatoes with any of the cover crop treatments. Considering the benefits associated with the use of cover crops, it is encouraging to see that with proper N amendment, yields obtained with cover crop systems can be comparable to conventional bareground systems.

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