Abstract
Mungbean can successfully be grown under strip tillage system if appropriate seeding rate can determine and adjust with machine. Due to high weed pressure in strip tillage system, selection of such mungbean varieties that have some potentialities to suppress weeds need to find out and moreover, determining optimum seed rate for different varieties could help to achieve best yield. Therefore, a study was conducted at Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during March-June, 2013 to study the effect of variety and seed rate on weed suppression and yield performance of mungbean under strip tillage system. The study comprised three mungbean varieties (BARI mung-6, BINA mung-5 and BINA mung-8) and five seed rates (20, 25, 30, 35 and 40 kg ha-1). The experiment was laid out in split-plot design with three replications. The study exposed that variety and seed rate had significant effect on plant population of mungbean, weed dry matter, number of pods plant-1, pod length, number of seeds pod-1, seed yield and stover yield of mungbean. The study results clearly found that weed population significantly reduced with increasing seeding rate of mungbean. Seeding of mungbean at 40 kg ha-1 and 35 kg ha-1 could successfully suppress weed under strip tillage system. Moreover, BINA mung-8 and BINA mung-5 had the more potentiality to suppress weeds compare to BARI mung-6. However, BINA mung-5 was found the superior among the three tested varieties that produced the highest seed yield from 35 kg ha-1 seed rate. In case of BARI mung-6 and BINA mung-8, maximum seed yield was also obtained from 35 kg ha-1 seed rate. Therefore, the study concluded that seeding of any of the three mungbean varieties at 35 kg ha-1 rate may help to obtain the satisfactory yield but the study suggest cultivation of BINA mung-5 at 35 kg ha-1 seeding rate under strip tillage system that will give not only the optimum seed yield but also provide good weed suppression.J. Bangladesh Agril. Univ. 14(1): 49-56, June 2016
Highlights
Mungbean (Vigna radiata L.) is one of the most important pulse crops of Bangladesh
From the interaction effect of variety and seed rate, the highest plant population was observed from BINA mung-5 at 40 Kg ha-1 seed rate both at 20 and 45 days after sowing (DAS) whereas BARI mung-6 at 20 Kg ha-1 produced the lowest plant population
BINA mung-8 at 20 kg ha-1 seed rate gave the highest weed dry matter (181.3 g m-2). These results demonstrated that higher seed rate of BINA mung-8 and BINA mung-5 provided better weed control whereas decreasing seed rate helped to grow more weed in strip tillage system
Summary
Mungbean (Vigna radiata L.) is one of the most important pulse crops of Bangladesh. It is considered as the best of all pulses from the nutritional point of view. The total production of mungbean in Bangladesh was 32000 metric tons from an area of 39,285 hectare of land with average yield of about 0.81 t ha-1 during 2013-14 (BBS, 2016). Our country is facing an acute shortage of mungbean due to low yield of approximately 654.36 kg ha-1 (MOA, 2012). While we have limited land for mungbean cultivation, attempts must be taken to increase the yield per unit area by improving technology and management practices
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
