Green Global
Foundation Journal
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Papers
EFFECT OF MULCHING AND DIFFERENT NITROGEN LEVEL ON THE GROWTH AND YIELD OF BROCCOLI (Brassica oleracia) (Pages : 22 - 28)
A.M. RAMZAN, M.M. FERDOUS AND H.M. AZIZULA field experiment was conducted to investigate the effect of mulching and nitrogen on the growth and yield of broccoli. The experiment was designed with four types of mulching (control, water hyacinth mulch, saw dust and black polyethylene mulch) and four different levels of nitrogen (control, 100 kg N/ha, 160 kg N/ha and 220 kg N/ha). Results revealed that mulching and nitrogen level significantly influenced the growth and yield of broccoli. Black polyethylene mulching resulted highest yield (12.77 t/ha) among four mulching treatments. On the other hand, 220 kg/ha nitrogen level resulted maximum yield (14.90 t/ha) compared with other nitrogen levels. Highest yield of broccoli (16.42 t/ha) was found in the combination of M3N3 treatment (black polyethylene mulch and 220 kg N/ha) and statistically similar with the result (15.95 t/ha) of M1N3 (water hyacinth mulch and 220 kg N/ha), whereas lowest yield (6.80 t/ha) was found for control treatment. Although, both M3N3 and M1N3 combination resulted maximum yield, M1N3 treatment was found economically profitable in respect of net return (Tk. 1,76,660 per hectare) with a benefit cost ratio of 3.82.Download