Abstract
Herbaceous biomass crops have the potential to capture solar radiation and store energy as a renewable fuel resource. Establishment procedures that can be used successfully without damage to the environment are essential. The objective of this research was to develop procedures to establish perennial, warm-season grasses, such as switchgrass ( Panicum virgatum L.) and lovegrass ( Eragrostis curvula L.), without tillage and preparation of a fine seedbed. Two applications of paraquat spaced 3 weeks apart or a single application of glyphosate can be used to suppress sod before no-till plantings. Carbofuran applied in the row at 1.1 kg ha −1 with the seed increased seedling vigor and populations. Application of 1.1 kg ha −1 of atrazine when seedlings began to emerge provided post-planting weed suppression. Weed encroachment occurring in years after establishment was halted by 2 kg ha −1 of simazine applied before first growth in the spring. These data provide guidelines for successful establishment of herbaceous perennial, warm-season grass biomass crops.
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