Response of weeds and some characteristics of Red bean (Phaseolus calcaratus L.) to cultivation time and weeds control methods

In order to evaluate the effects of time cultivation and weeds control methods on yield and some it components of Red bean (Phaseolus calcaratus L.) and select of best weeds control method a experiment was performed in farm of Ezna city. An experiment was carried out based on randomized complete block design in two separate tests with four replicates in 2012-2013. The experimental factors were time of cultivation at day and night also weeds control methods in six levels of control (without weed control), once hand weeding, application of Treflan herbicide, application of Bentazon herbicide, application of Treflan + once hand weeding and application of Bentazon + once hand weeding. Results showed that minimum number and dry weight of weeds (Lambsquarter, Puncturevine and Broomrape) obtained at night cultivation and application of Bentazon + once hand weeding (H+B) treatments. Red bean yield and some of it components was significantly higher in night cultivation and application of Bentazon + once hand weeding (H+B) treatments However, minimum weeds infestation and maximum yield and it components was obtained in both night cultivation and application of Bentazon + once hand weeding (H+B) treatment and this method is the best for controlling of weeds in Red bean.