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Effect of Phosphorus and Boron on the Performance of Summer Mungbean in High Ganges River Floodplain Soil

M. Robiul Alam
RARS, BARI, Akbarpur, Moulvibazar

M. Akkas Ali
On-Farm Research Division, BARI, Pabna

S. Rafiquzzaman
RARS, BARI, Akbarpur, Moulvibazar

B. Ahmed
On-Farm Research Division, BARI, Pabna

M. Bazzaz
Wheat Research Sub-station, Rajbari, Dinajpur

Abstract/ Executive Summary:

An experiment was carried out at the Multilocation Testing site (MLT) Atghoria, Pabna during the kharif season of 2006 to findout the effect of levels of applied P and B on the performance of summer mungbean. Four different levels of P (0, 10, 20 and 30 kg ha^-1) and three levels of B (0, 1 and 2 kg ha^-1) were employed in RCB design with 3 replications. The result revealed that yield attributes and yield of summer mungbean significantly influenced by the application of phosphorous (P) and boron (B) except plant height and plant population m^-2. The highest seed yield was obtained from the application of 20 kg P and 1 kg B ha^-1 which was 21.68% higher over control (P and B omission). The maximum economic return in terms of gross margin and marginal benefit-cost ratio was achieved with the same level of phosphorous and boron fertilization.

Keywords: Phosphorus, Boron, Summer mungbean, Ganges river floodplain soil

Location: Multilocation Testing Site (MLT), Atghoria Pabna

Start Date: 01-03-2006

End Date: 20-05-2006

Program Area: Crop-Soil-Water Management

Commodity: Mungbean

Objectives:

1. To find out the effect of levels of applied P and B on the performance of summer mungbean.

Methodology:

Site description: The experiment was carried out at the Multilocation Testing Site (MLT), Atghoria Pabna during the kharif season of 2006. The experimental site was in Gopalpur soil series belonging to the High Ganges River Floodplain Soils (AEZ-12). Before starting the experiment, initial composite soil samples (0-15 cm depth) were collected from the experimental plots and were analyzed. The analytical result indicated that soil was clay loam with low organic matter content (1.75%) and slightly alkaline in nature. Nitrogen, P and K content of the soil were low but S and B content were medium. Zinc content of the soil was optimum. The experiment was laid out in randomized complete block (RCB) design with three replications. The unit plot size was 4 m x 4 m. Treatments: Treatment consisted of four different levels of P (0, 10, 20 and 30 kg ha^-1) and three levels of B (0, 1 and 2 kg ha^-1) which were tested for mungbean crop. Field and crop management: The land of the experimental plot was prepared with a power tiller by ploughing followed by laddering. Phosphorous and Boron was applied in the form of triple super phosphate and boric acid as per treatment specification. For nitrogen, inoculum was used at the rate of 50g kg^-1seed. A blanket dose (30-10-1 kg K S Zn ha^-1) was applied for growing mungbean. The full amount of N, P, K, S, Zn and B were applied at the time of final land preparation in the forms of urea, triple super phosphate, muriate of potash, gypsum, zinc oxide and boric acid, respectively. Mungbean (var. BARI Mung-6) seed was sown on March 01, 2006 in line (30 cm apart) with continuous seeding at the rate of 30 kg ha^-1. The experimental field appeared shortage of residual soil moisture and hence one light irrigation was applied at 12 days after sowing for better seed germination. One weeding was done at 17 days after sowing of seed. Other intercultural operations and plant protection measures were taken as and when required. The crop was harvested on May 20, 2006. Measurement: The data on crop parameters except grain and straw yield were measured from ten randomly selected plants of the sampling area of each treatment. Grain and straw yields were measured from the total area of each treatment. Grain yield per hectare was then calculated on 9% moisture content. Collected data were statistically analyzed and mean differences for each character were compared by Duncan’s New Multiple Range Test (DMRT). Cost and return analysis of different treatments were done for net benefit. Variable cost was counted from monetary cost (fertilizer) and opportunity cost (labour) only while the other cost considered as fixed cost. Gross return was computed by adding market values of grain and straw yield.

Source of Information: J. Agrofor. Environ. 3 (2): 183-186, 2010; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

It revealed that the performance of summer mungbean was responsive to phosphorous and boron fertilization. Considering yield and yield contributing characters, the highest performance exhibited due to application of 20 kg ha^-1 phosphorous along with 1 kg ha^-1 boron. Moreover, the said treatment combination resulted in the maximum economic return. Therefore, for growing summer mungbean in the High Ganges River Flood plain soil, the growers may be advised to apply recommended fertilizer package along with 20 kg ha^-1 phosphorous and 1 kg ha^-1 boron for maximizing yield and economic return.

Knowledge Management: Journal