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Development of Fertilizer Recommendation for Blackgram in Charland of Pabna, Bangladesh

M. Maniruzzaman*
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M. R. Alam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M.S. Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M.Z. Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Pabna

M.S.H. Molla
On-farm Research Division, Bangladesh Agricultural Research Institute, Rangpur

M.A. Islam
On-farm Research Division, Bangladesh Agricultural Research Institute, Shampur, Rajshahi

Abstract/ Executive Summary:

The experiment was conducted at charland of Charsadipur in Pabna district under AEZ-11 during Khrif season of 2014 and 2015 to determine appropriate fertilizer dose for enhancing yield of blackgram as well as to increase farmers’ income. The experiment was laid out in a randomized complete block design with four dispersed replications. Eight fertilizer packages, viz.T1: N20P15K6S9Zn2 kg ha^-1(STB), T2: N25P15K6S9Zn2kg ha^-1, T3: N25P19K6S9Zn2 kg ha^-1, T4: N25P15K8S9Zn2 kg ha^-1, T5: N20P19K8S9Zn2 kg ha^-1, T6: N25P19K15S9Zn2 kg ha^-1, T7: N15P11K5S7Zn1.5kg ha^-1and T8: Native nutrients (control) were tested on blackgram. Fertilizer package of N25P19K15S9Zn2 kg ha^-1 (T6) enhanced crop growth and yield of blackgram in both the years. Maximum seed yield of blackgram (1.43t ha^-1 in 2014 and 0.97 t ha^-1 in 2015) was obtained with N25P19K15S9Zn2 kg ha^-1 (T6), which was 80 and 147% more than the control in 2014 and 2015, respectively. The highest gross return (Tk. 82815 ha^-1 in 2014 and Tk. 65200 ha^-1 in 2015) and gross margin (Tk. 51125 ha^-1 in 2014 and Tk. 32020 ha^-1 in 2015) were also recorded from the same treatment in both the years. The results revealed that fertilizer package of N25P19K15S9Zn2kg ha^-1 might be recommended for getting higher seed yield of blackgram and economic return as well under charland condition of Pabna district.

Keywords: Charland, AEZ, Pulse, Blackgram,Yield, Cost and return

Location: at charland of Charsadipur in Pabna district

Start Date: 00-00-2014

End Date: 00-00-2015

Program Area: Crop-Soil-Water Management

Commodity: Black gram

Objectives:

The present study was undertaken to determine the optimum fertilizer dose for getting higher economic benefit for blackgram in charland of Pabna district.

Methodology:

The experiment was conducted at charland of Charsadipur in Pabna district during the Khrif-II season of 2014 and 2015. Soil series of the experimental site was Gopalpur belonging to the High Ganges River Floodplain Soils (AEZ-11). Before sowing, initial soil samples (0-15 cm depth) were collected from the experimental plots and were analyzed. The analytical results indicated that soil was sandy loam with very low organic matter content (0.78%) and slightly alkaline in nature. N content of soil was very low and P, S and Zn content were also low. K content of the soil was medium. The experiment was laid out in randomized complete block (RCB) design with three dispersed replications. The unit plot size was 5m x 4m.

Full amount of all fertilizers were applied as basal according to treatments. Seeds of blackgram were broadcasted in each plot on 15-20 August maintaining the seed rate of 35 kg ha^-1 in both the year . The variety used this trial was BARI Mash-3. Two weedings were done at 25 and 40 days after sowing (DAS) for better growth of the crop. Ripcord 50 EC was applied at 35 DAS to control leaf feeding insect. Other intercultural operations were done when required. The above ground part of blackgram was harvested on 10-15 November in both the year. Data on days to 50% flowering, days to 80% maturity were taken from all plots. Plant height, pods plant^{- 1},seeds pod^-1and 1000-seed weight were collected from randomly selected 10 plants at maturity stage from each plot. Seed yield and stover yield were taken from whole plot. All collected data were analyzed statistically by using MSTAT package and the means were adjudged by LSD test at 5% level of significance. Cost and return analysis of different treatments were also done .

Source of Information: Bangladesh Agron. J. 2018, 21(1): 89-94

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The results revealed that fertilizer packages exerted significant effect on growth and yield of blackgram. Blackgram grown with N25P19K15S9Zn2 kg ha^-1 produced the highest yield and gave the maximum economic benefit at charland area of Pabna district, Bangladesh.

Knowledge Management: Journal