PJB-2022-19
RESPONSE OF MUNGBEAN TO DIFFERENT LEVELS OF BORON AND IRON
Izharullah
Abstract
An experiment was conducted at Agronomy Research Farm, The University of Agriculture, Peshawar during summer 2021 study the response of mungbean to different levels of boron (0, 4, 8 and 12 kg ha-1) and iron (0, 10, 15 and 20 kg ha-1) on yield and yield attribute of mungbean. The research was planned in randomized complete block design (RCBD) with three replications. Plot size was 3 x 3.6 meter with a row-row distance of 45 cm and plant-plant distance of 10 cm which accommodating 8 rows. The mungbean cultivar “RAMZAN†was sown on 06 July 2021. Boron and iron was applied in the form of borax acid H3BO3 and ferrous sulfate (FeSO4). The required amount of both sources was mixed with 300 g of sand and was applied on surface of soil at the time of sowing after tillage. Nitrogen was applied at 30 kg ha-1 from of urea and phosphorus at 50 kg P2O5 ha-1 from single super phosphate at time of sowing. All fertilizer was thoroughly mixed in the soil. The weeds were controlled manually and pesticide was applied in case of pest incidence. Irrigation of the crop was done as per requirement and crop was harvested at maturity stage. Insignificant impact on days to emergence and emergence m-2 was observed by different levels of boron and iron. Boron fertilization at 12 kg ha-1 increased branches plant-1 (13), leaves number plant-1 (27), nodules plant-1 (20), plant height (79.1 cm), pods plant-1 (20 pods), grain pod-1 (14), 1000 grain weight, economic (775.7 kg ha-1), biomass production (2739.1 kg ha-1) and HI (28.9%) while days to flowers (40 days) and physiological maturity (68 days) appeared early. Fertilization of iron to the crop at 20 kg ha-1 enhanced branch plant-1 (12), numbers of leaves (26), nodule (18), plant height (78.3 cm), pods plant-1 (16 pods), seed pod-1 (16), heavier 1000 grains weight (38.3g), economic (755.4 kg ha-1), biomass production (2634.0 kg ha-1) and HI (28.9%) while delay days to flowering (44 days) and physiological maturity (75 days). The interactive effect of B x Fe on growth and yield parameter was reported not significant. It was concluded from the outcomes that boron at 12 kg ha-1 and iron at 20 kg ha-1 performed well and is recommended for higher mungbean productivity.
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