COMBINED EFFECT OF ORGANIC AND INORGANIC FERTILIZERS ON GROWTH AND YIELD OF MUNGBEAN UNDER DIFFERENT PLANT SPACING

Abstract

The experiment was conducted at the Agronomy research farm of Sher-e-Bangla Agricultural University, Dhaka during the period from mid-March to June, 2019 to study the effect of different combinations of organic and inorganic fertilizers with different plant on yield of mungbean (BARI mung 5) using split plot design with three replications by assigning spacing in the main plot and fertilizer in the sub plot. The experiment comprised of two factors; Factor A: 3 level of spacing; S 1 - 20 cm × 10 cm, S 2 - 30 cm × 10 cm

(recommended) and S 3 - 45 cm × 15 cm; Factor B: 6 level of fertilizers; F 0 - No fertilizer (control), F 1 ii

- Recommended dose of NPK, F 2

cowdung, F 3 - 5 t ha -1 cowdung + Recommended dose of NPK, F 4 - 2.5 t ha cowdung + Recommended dose of NPK and F 5 - 2.5 t ha -1 cowdung + ½ Recommended dose of NPK. Plant Height, number of leaves plant -1 , number of branches plant , dry matter plant -1 , pod length, number of pods branch -1 , number of pods plant -1 , number of seeds pod -1 , 1000 seed weight, seed yield, stover yield, biological yield, harvest index were compared for different treatments. Among the three spacing, S 2 produced maximum seed yield (1022.8 kg ha -1 ) while the lowest in S 3 (834.4 kg ha -1 ). Cowdung had a significant effect on the growth and yield attributes of mungbean. The highest number of pods plant -1 (24.44) was found from S 3 F 4 and the lowest (17.11) from the S 1 The highest number of seeds pod -1 (12.9) found from S 3 F 4 and the lowest (9.67) from the S 1 F 0. The highest 1000 seed weight (51.47 g) was recorded from S 3 F 4 and the lowest (45.25 g) was observed from the S 2 F 0 . The maximum seed yield (1156.7 kg ha ) was obtained by applying cowdung @ 2.5 t ha -1 along with recommended dose of NPK while minimum (930.0 kg h -1 ) was found applying cowdung @ 5 t ha . From the 18 treatment combinations, S 2 F 4 was showed excellent performance when considering stover yield, biological yield. Plant spacing of 30 cm × 10 cm

-1 -1 -1 - 5 t ha along with 2.5 t ha + recommended dose of NPK application can be more beneficial for the farmers to get maximum yield from the cultivation of BARI Mung-5.