@article{Agüero-Alvarado_Rojas_Pérez_2006, title={Earthworm populations under six weed control strategies in a banana plantation.}, volume={13}, url={https://revistas.ucr.ac.cr/index.php/agromeso/article/view/13234}, DOI={10.15517/am.v13i1.13234}, abstractNote={Six weed management<br />strategies were established in with banana plantation; in San<br />Pablo, a farm located in the Atlantic region of Costa Rica.<br />Since then, earthworm counts have been performed at regular<br />intervals. Weed management strategies consisted of: 1-<br />unweeded control. 2- Hand weeded control at monthly<br />intervals. 3- Glyphosate (Ranger Plus-680 g/kg; at 0.687%<br />w/v) applications at eight week intervals. 4- Paraquat<br />(Gramoxone-200 g/l, at 0.75% v/v) at monthly intervals. 5-<br />Glufosinate (Finale-150 g/l, at 1% v/v) applications at eight<br />week intervals. 6- Monitored treatment, depending on<br />detected weeds, only in the area of maximum weed-crop<br />interference. Earthworms were counted, at each sampling<br />time, from four 15625 cm3 soil samples of each plot. Samples<br />were taken from different microhabitats, including soil<br />covered with Paspalum conjugatum; soil covered with<br />Panicum zizanoides; soil covered with banana residues<br />(leaves, pseudo-stems) and bare soil. Soil samples from sites<br />covered with banana residues or Paspalum conjugatum<br />showed the highest earthworm counts, followed by soil<br />covered with Panicum zizanoides and bare soil. A direct<br />effect of weed management strategies on earthworm number<br />has not been detected.}, number={1}, journal={Agronomía Mesoamericana}, author={Agüero-Alvarado, Renán and Rojas, Silvia and Pérez, Leonardo}, year={2006}, month={Jan.}, pages={25–29} }