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Agro Economic Performance of Bio-slurry on Boro Rice Cultivation in Some Sites of Moulvibazar District

M. R. Shaheb
PhD Scholar
Harper Adams University, UK and the University of Illinois at Urbana Champaign, IL 61801, USA and Senior Scientific Officer, On-Farm Research Division, Bangladesh Agricultura

M. I. Nazrul
Senior Scientific Officer
On-Farm Research Division, Bangladesh Agricultural Research Institute (BARI), Sylhet-3100, Bangladesh

S. M. M. R. Khan
Chief Scientific Officer
On-Farm Research Division, BARI, Gazipur-1701, Bangladesh

Abstract/ Executive Summary:

Soil fertility in Bangladesh is gradually diminishing and this is now becoming a critical issue. Biogas slurry is a renewable energy produced organic fertilizer can be applied for maintaining the fertility of soil. In this study, a two years experiment was conducted in the year 2011 and 2012 at the farmer’s field of Moulvibazar district under the agroecological zone 20 (AZE-20). The overall objective of the study was to observe the effect of bio-slurry on the agroeconomic performance of boro rice cultivation at on-farm condition. Three fertilizer treatments viz., T1: Soil test based (STB) inorganic fertilizer for high yield goal (HYG), T2: Integrated Plant Nutrient System (IPNS) based inorganic fertilizer + cowdung bio-slurry 5 tha^-1 for HYG and T3: Farmer’s practice as control i.e. average of 20 farmers fertilizer application dose in boro rice were considered during experimentation. Results revealed that bioslurry based boro rice production is more profitable than chemical fertilizer. The highest grain yield (5.06 t ha^-1) was recorded from IPNS with 5 t ha^-1 cow dung slurry for HYG (T2) while the lowest yield was obtained from farmer’s practice. However, yield increase due to application of 5 t ha^-1 Cowdung slurry slurry with IPNS based inorganic fertilizer was 115 and 124% compared to STB inorganic fertilizer and farmers followed treatment. Gross margin (Tk.65900 ha^-1), benefit cost ratio (2.59) and marginal rate of return (451) were also obtained higher in the same treatment. Thus, nutrient package NPKSZn @102-12-25-18-2 kg + cowdung slurry 5 tha^-1 might be helpful to get increased yield and improve soil health in AZE-20.

Keywords: Bio-slurry, IPNS, Boro rice, Profitability, Soil health, AEZ-20.

Location: At the farmer’s field at multi location testing site, Moulavibazar under On Farm Research Division, Bangladesh Agricultural Research Institute, Sylhet

Start Date: 00-00-2011

End Date: 00-00-2012

Program Area: Socio-economic and Policy

Commodity: Bio fertilizer

Objectives:

To evaluate the efficiency of bio-slurry on the performance of boro rice crops with the objectives: to determine the effect of bio-slurry application on soil nutrient status, to find out the effect of bio-slurry use on the yield and yield attributes of boro rice, and to estimate the financial performance of bio-slurry in boro rice cultivation.

Methodology:

The experiment was conducted at the farmer’s field at multi location testing site, Moulavibazar under On Farm Research Division, Bangladesh Agricultural Research Institute, Sylhet in the year 2011 and 2012. The trial was laid out in a randomized complete block design with three replications. There were three fertilizer treatments viz. T1: Soil test based (STB) inorganic fertilizer for high yield goal (HYG), T2: Integrated Plant Nutrient System (IPNS) based inorganic fertilizer + cowdung bio-slurry 5 tha-1 for HYG and T3: Farmer’s practice as control i.e. average of 20 farmers fertilizer application dose in boro rice. The plot size was 6m × 5m the rice variety BRRI dhan29 was used in the trial. Thirty days aged entire amount of cowdung slurry as per treatment were applied 4 days before final land preparation. The whole amount of PKSB and 1/3 of N were applied during final land preparation. The rest of N was top dressed at 21 and 45 days after transplanting of boro rice. Twenty seven days old of boro rice seedling were transplanted on 15 March in both the years. Plant protection measures and other intercultural operations were done as and when necessary. The crop was harvested on 28 June 2011 and 30 June 2012. Data on yield and yield attributes viz., plant height, tiller per plant, panicle per m2 and 1000 grain weights were recorded in time. Individual plot wise data on grain and straw yield were recorded and converted into per hectare yield. Biological yield is expressed as the combined yield of grain and straw yields while the harvest index was calculated with the grain yield multiply with 100 and then divided by biological yield. The partial budget and marginal analysis of cost and return was done as per Perrin et al. (1979) and Karim and Elias (1992). The collected data were analyzed following the ANOVA technique with the help of MSTAT-C software. The mean differences among the treatment means were adjudged by Least Square Difference (LSD) test (Gomez and Gomez., 1984).

Source of Information: Bangladesh J. Agril. Res. 42(2): 363-371, June 2017 ISSN 0258-7122 (Print), 2408-8293 (Online)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

From the findings of the study it revealed that bio-slurry based boro rice production is more profitable than chemical fertilizer. The highest grain yield (5.06 t ha^-1) was recorded from IPNS with 5 t ha^-1 cow dung slurry for HYG while the lowest yield was obtained from farmer’s practice. Yield increase due to application of CD slurry @ 5 t ha^-1 with IPNS based inorganic fertilizer for HYG was 115 and 124% compared to STB inorganic fertilizer and farmers treatments. According to partial budget and marginal analysis, the same treatment provided the highest gross return (Tk.107470 ha^-1) and gross margin (Tk.65900 ha^-1). BCR (2.59) and marginal rate of return (451) were also recorded higher in CD slurry @ 5 t ha^-1 with IPNS based inorganic fertilizer for HYG. Farmers were found to be highly impressed to receive higher yield of rice using cow dung slurry and they wanted to apply bio-slurry in their field in future for receiving sustainable crop production. Thus, it might be recommended that CD bioslurry @ 5 t ha^-1 along with inorganic fertilizer in IPNS approach could be applied for boro rice cultivation in Moulvibazar. It would be benefited for farmers to contribute more in food security as well as sustainable crop and soil management. Hence, it is also strongly recommended to continue this trial in other field crops including horticultural crops as a regular basis by the concerned organizations covering all agro-ecological zones of Bangladesh.

Knowledge Management: Journal