Sowing Method Effects on Clover Establishment into Permanent Pasture
- David Schluetera and
- Benjamin Tracy *a
A study was conducted from 2009 to 2011 near Blacksburg, VA, to gain a better understanding of how sowing method affected establishment and persistence of clover in permanent cool-season grass pastures. Four 1.1-ha pastures were split in half and assigned a broadcasted or no-till drilled sowing treatment. Pasture treatments were sown with an equal proportion of red (Trifolium pratense L.) and white clover (Trifolium repens L.) each at 4.4 kg ha−1 in February 2009. Residual grass biomass on pastures was measured at sowing, and clover seedling density was counted 2 mo later. Grass, white clover, red clover, and weed biomass were measured four times during each growing season. Broadcast treatments had 56% more clover seedlings than drilled treatments 2 mo after sowing, but this difference was not significant (P = 0.1087). No difference (P > 0.10) for clover biomass was observed between sowing treatments in any year, yet clover establishment was considered successful (>25% of pasture composition). In the drilled treatments, clover seedling density was negatively affected by the amount of residual grass biomass present during sowing (P = 0.0196). In the broadcasted treatment, a negative quadratic relationship between clover seedling density and residual grass biomass at sowing was found (P = 0.0516). For successful establishment of clovers into permanent pastures, these data imply that removing residual grass biomass before sowing was more important than seeding method.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 2012 by the American Society of Agronomy, Inc.