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Effects of Cowdung and Different Inorganic Fertilizers on Growth, Yield and Nutrient Content of Boro Rice (brri Dhan29)

MU Kulchhum
Ph.D. student
Dept.of Agril.Chemistry, Sher-e-Bangla Agril.University, Dhaka-1207,Bangladesh

M A Razzaque
Professor
Dept.of Agril.Chemistry, Sher-e-Bangla Agril.University, Dhaka-1207,Bangladesh

Abstract/ Executive Summary:

This study was conducted to evaluate the effects of cowdung and different inorganic fertilizers on growth, yield and nutrient content of boro rice (BRRI dhan29). The experiment consisted of 16 treatmentscombinations.At harvest stage the tallest plant height, longest panicle, the maximum number of filled grains/panicle, the highest weight of 1000 seeds, the maximum grain yield, straw yield, benefit cost ratio and different properties of soil (soil pH, organic matter, %N, P ppm and K meq/100 g soil) was recorded from treatment combination CD₃F₃ (100% cowdung and 100% inorganic fertilizer) and CD₃F₂ (100% cowdung and 75% inorganic fertilizer) whereas the lowest plant, the shortest panicle, the minimum filled grains /panicle, the lowest weight of 1000 seeds, the lowest grain yield, straw yield, benefit cost ratio and different properties of soil (soil pH, organic matter, %N, P ppm and K meq/100 g soil) was observed from control treatment. The overall findings of the study indicated that the yield of rice can be increased substantially with the judicious application of cowdung with inorganic fertilizer.

Keywords: Cowdung, NPK, Benefit-cost ratio, Soil properties, Boro rice

Location: Shakhepur, under the district of Tangail

Start Date: 00-00-2013

End Date: 00-00-2013

Program Area: Crop-Soil-Water Management

Commodity: Rice, Manures

Objectives:

The present study was revealed to asses the effect of inorganic fertilizers and cowdung growth yield and nutrient content in producing boro rice (BRRI dhan29).

Methodology:

The experiment was conducted at the Shakhepur, under the district of Tangail during the boro season of 2013. The climate of the experimental area is characterized by a scanty rainfall associated with moderately low temperature in the rabi season (October-March). The experiment was laid out in a randomized complete block design (RCBD),with three blocks. Each block was furnished 16 treatments combinations with 3 replications. The unit plot size was 1.5 m x 2 m and block was separated by 70 cm drains. Before land preparation, initial composite soil sample were collected at 0-15 cm depth from different spots and prepared for physical and chemical analysis. Factor A :Organic manures (Cowdung)-4 levels (0, 50, 75 and 100% level of treatments of the recommended doses of Urea, TSP and MoP). Factor B: Inorganic fertilizers (Urea, TSP and MoP) -4 levels (0, 50, 75 and 100% level of treatments of the recommended doses of Urea, TSP and MoP). Fertilizer recommendation guide, BARC, 2012. So, there were 16 treatment combinations were as CD₀F₀, CD₀F₁,CD₀F₂,CD₀F₃,CD₁F₀,CD₁F₂,CD₁F₂,CD₁F₃CD₂F₀, CD₂F₁,CD₂F₂, CD₂F₃, CD₃F₀,CD₃F₁,CD₃F₂ and CD₃F₃. Full amounts of TSP, MoP, gypsum and zinc sulphate were applied as basal dose before transplanting of rice seedlings. Urea were applied in 3 equal splits: one third was applied at basal before transplanting, one third at active tillering stage and the rest one third was applied at 7 days before panicle initiation stage. Cowdung were applied before six days of final land preparation. Five weeks old seedlings BRRI dhan 29 were transplanted in the plot on 25 January 2014. The line to line distances 20 cm and hill to hill 15 cm distances were maintained. Three seedlings per hill were transplanted. Intercultural operations were done whenever required.When 80-90% of the grains become golden yellow in color maturity of crop was determined. The harvesting of BRRI dhan 29 was done on May 11, 2014.The grains were cleaned and sun dried to a moisture content of 12-13%. Straw was also sun dried properly. Finally grain and straw yields (kg/plot) were determined and converted to ton ha^-1. A partial budget was estimated which is useful to analyze relatively small changes in the farm business (Kay, 1981).Benefit cost ratios has been calculated for finding the most profitable combination in terms of total and net revenue and finally estimated economic analysis.The soil and manure samples were collected, processed and analyzed for N, P and K. The The N, P and K concentration of cowdung were 1.18, 0.45 and 0.47 %respectively. The N concentration of cowdung was determined by Micro-Kjeldahl method. The available P were determined by ascorbic acid blue color method (Olsen et al., 1954). Exchangeable K were determined by using flame photometer. The statistical analysis was done using the MSTAT-C (Russell, 1986) computer package program. Analysis of variance was done following two factors randomized complete block design. The mean differences among the treatments were compared by Duncan’s Multiple Range Test (DMRT) at 5% level of significance.

Source of Information: Eco-friendly Agril. J. 12(06):26-35, 2019 (June)

Article Link (Online Journal): www.efaj-international.com

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

From analysis of data the treatment combination (100% cowdung +75% Inorganic Fertilizer) and (100% cowdung+100% inorganic fertilizer) found in highest grain yield with maximum BCR. Therefore, it can be recommended that treatment combination (100% cowdung+75% inorganic fertilizer) is best for the yield of boro rice BRRI dhan 29.

Knowledge Management: Journal