NODULATION, GROWTH AND YIELD OF MUNGBEAN AND BLACKGRAM AS AFFECTED BY FERTILIZER MATERIALS

Abstract

An experiment was carried out at the Sher-e-Bangla Agricultural university fbirn: Dhaka to investigate the nodulation, growth and yield of mungbean and blackgram as affected by fertilizer materials during the period from March 2007 to June 2007. The trial comprised of two crops and five fertilizer treatments such as C3

mungbean and C hlackgram, F1 = no fertilizer (control). F, = chemical fertilizer (NPKB), F.I = inoculum. F4 cowdung, F= PKI- inoculum. The experiment was laid out in a split plot design with three replications where two craps were assigned in the main plot and five fertilizer materials as the sub-plot. Plant height. nodulation. root length. root dry weight. total dry matter production, number of branches plant". pods plant", number of seeds pod',lOOO-seeds weight, shelling percentage, seed yield. stover yield, biological yield and harvest index were tested for different treatments. Results revealed that inoculum and PK+ inoculum influenced significantly on the growth, yield parameters and yield of mungbean and blackgram. Plant height, root length, number of branches plant" and pods plant ' were higher in blackgram than mungbean. Number of nodules plant'. total dry matter production, pod length. number of

seeds pod" and yield were higher in mungbean than blackgram. inoculum alone or in combination with PK increased plant height. total dry matter production, leaf area index. number of branches plant", number of seeds pod' and yield. The highest seed yield (1.59 ha") was given by mungbean with inuculum treatment that was similar to mungbean with PK+inoculum (1.43 t hi') and chemical fertilizer (NPKB) (1.33 t ha") and blackgram with inoculum (1.35 t ha"). The higher dry matter eventually supported the plant to produce maximum number of branches and pods per plant, which resulted in maximum seed yield.