@article{Rojas_Chaves_2006, title={Effect of minimun and conventional tillage in bean (Phaseolus vulgaris L.) in the Northern Huetar Region in Costa Rica.}, volume={13}, url={https://revistas.ucr.ac.cr/index.php/agromeso/article/view/12025}, DOI={10.15517/am.v13i2.12025}, abstractNote={<p>The work was conducted in the northern area of</p><p>Costa Rica where two plots were sown: one of minimum</p><p>tillage (1.85 ha) and another of conventional tillage (2 ha).</p><p>Both tillage systems were planted with a hydraulic sower</p><p>fertilizer. The sown variety was the Brunca. The population of</p><p>bean plants evaluated during the vegetative stage was of 9.37</p><p>plants/lineal meter in minimum tillage, and of 9.55</p><p>plants/lineal meter in conventional tillage. The weed density</p><p>was larger under conventional tillage and the most prevalent</p><p>weeds were Richardia scabra, Rottboellia cochinchinensis y</p><p>Spermacoce sp. The dry weight of weeds was of 37.6 g of</p><p>weed/frame of 0.25 m<span>2 </span>in minimum tillage, while in the</p><p>conventional tillage it was of 46.4 g of weed/frame. The</p><p>incidence and severity of web-blight (Tanatheporus</p><p>cucumeris) in the system of minimum tillage was of 42.8%</p><p>and of 0.83, respectively, while in conventional tillage it was</p><p>of 52.2% and 1.22, respectively. In the system of minimum</p><p>tillage the yield was of 930 kg/ha, and in conventional of 676</p><p>kg/ha.</p>}, number={2}, journal={Agronomía Mesoamericana}, author={Rojas, Luis Antonio and Chaves, Gerardo}, year={2006}, month={Jul.}, pages={105–110} }