![]() ![]() The desiccated residue forms a thick layer of mulch over the topsoil to protect the soil surface from harmful rainfall energy, thus reducing soil erosion and runoff. A roller-crimper flattens the plants and damages the stems with the crimping bars (equally spaced on the roller’s drum), crushing them to enhance desiccation. This requires injuring the plant with the crimping bars without severing stems. One is mechanical termination utilizing rolling and crimping technology. There are different cover crop management methods. Because of this restriction, mechanical termination must be as effective as chemical application. This practice, however, is not permitted in organic systems, where the use of commercial herbicides is prohibited. However, yields were higher for cereal rye and hairy vetch cover crops (41,785 kg ha −1 and 42,000 kg ha −1) compared to crimson clover (32,213 kg ha −1).Ĭommon practice in accelerating the termination process is to utilize herbicides, such as glyphosate (Roundup TM), as a supplement to rolling and crimping. There were no significant differences in cantaloupe yield among the rolling treatments, which averaged 38,666 kg ha −1. ![]() Three weeks after rolling, a higher termination rate was found for flail mowing (92%) compared to lower termination rates for a two-stage roller (86%) and powered roller-crimper (85%), while the control termination rate was only 49%. Cover crop termination rates were evaluated one, two, and three weeks after termination. Crimson clover, cereal rye, and hairy vetch cover crops were terminated using two different roller-crimpers, including a two-stage roller-crimper for four-wheel tractors and a powered roller-crimper for a two-wheel walk-behind tractor. A field experiment was conducted over three growing seasons in northern Alabama to determine the effects of different cover crops and termination methods on cantaloupe yield in a no-till system. Another popular and commercially available method is mowing, but this can cause problems with cover crop re-growth and loose residue interfering with the planter during cash crop planting. Mechanical termination, utilizing rolling and crimping technology, is one method that injures the plant without cutting the stems. In a no-till system, there are many different methods available for terminating cover crops. ![]()
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