Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Combined Effects of Nutrient Management on Nutrient Content and Uptake of Transplant Aus Rice (brri Dhan48)

Nahid Kaisar
Department of Soil Science, Bangladesh Agricultural University, Bangladesh

Abu Zofar Md. Moslehuddin
Professor
Department of Soil Science, Bangladesh Agricultural University, Mymensingh, Bangladesh

Md. Mahbubul Alam Tarafder
Senior Scientific Officer
Soil Science Division, Bangladesh Institute of Nuclear Agriculture, Bangladesh

Md. Sohanur Rahman
Scientific Officer
Department of Entomology, Bangladesh Jute Research Institute, Dhaka

Abstract/ Executive Summary:

A field experiment was conducted at Sutiakhali, Mymensingh for crop production and chemical analysis was performed at the Department of soil science, Bangladesh Agricultural University, Mymensingh to see the combined effect of nutrient management on nutrient content and uptake of Transplant Aus rice (BRRI dhan48) during March to July 2015 following Randomized Complete Block Design with four replications. The treatments were T1: RD (N75 P12 K45 S9), T2: STB (N74 P11 K36 S7), T3: INM (N54 P5 K27 S5+ CD @ 5.0 t ha−1), T4: Farmer’s practice (N69 P30 K37), and T5: Control (no fertilizer). The NPKS content and uptake by BRRI dhan48 were also influenced significantly due to combined use of manure and fertilizers. The maximum N, P, K and S uptake by grain (35.55, 6.99, 15.20 and 3.38 kg/ha respectively) were obtained from the application of Integrated Nutrient Management. The minimum N, P, K and S uptake by grain (20.08, 3.64, 8.35 and 1.74 kg/ha respectively) were found from T5: Control. Similarly, The maximum N, P, K and S uptake by straw (3.38, 5.43, 99.25 and 7.37 kg/ha respectively) were found from T3: INM. The minimum N, P, K and S uptake by straw (1.74, 2.67, 49.70 and 3.87 kg/ha respectively) were obtained from T5 (Control). The performance of the treatment T3 was better than T1, T2, T4 and T5 in nutrient content and uptake of BRRI dhan48. Considering nutrient content and uptake, the application of chemical fertilizers in combination with manure based on INM could be recommended for BRRI dhan48 production in aus season.

Keywords: Nitrogen, Phosphorous, Potassium, Sulphur, Grain, Straw, Fertilizer, BRRI dhan48, Soil

Location: Department of Soil Science, Bangladesh Agricultural University, Bangladesh

Start Date: 00-03-2015

End Date: 00-07-2015

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer and manures, Rice

Objectives:

The present research work was undertaken to know the nutrient content and uptake of Transplant Aus rice (BRRI dhan48) in combined nutrient management.

Methodology:

2.1 Site and Weather Description: The field experiment was done at Sutiakhali, a village of Mymensingh Sadar upazila and laboratory analysis was done at The Department of soil science, Bangladesh Agricultural University District during January-July 2015. At a height of 8.3 m above the mean sea level under Old Brahmaputra Floodplain Agro-ecological zone. Physical characteristics of soil were sand 27.06%, silt 63.40% and clay 9.54%. The textural class was silt loam. Drainage system was moderate. Chemical characteristics of soil were pH (6.53), organic matter (1.35%), total N (0.10%), available P (6.0 mg kg-1), Exchangeable K (0.097cmol+ kg-1), available S (9.3 mg kg-1) and available Zn (0.41mg kg-1). The weather information ranged temperature (max. 23.90c - 35.40c & min. 11.30c - 26.70c) rainfall (Nil -??299.9 mm) and humidity (76-86.6%) prevailed at the experimental site during the cropping season of conducting the experiment (Source: Department of Irrigation and Water Management, Bangladesh Agricultural University, Mymensingh). 0-15 cm depth soil collected for samples. The samples were then stored in clean plastic bags for subsequent chemical and mechanical analysis. The planting material used for the experiment was transplanted aus rice. The variety was BRRI dhan48.
2.2 Experimental Design and Treatments: The experiment was done by Randomized Complete Block Design (RCBD) where the experimental area was divided
into 4 blocks and each block was subdivided into 5 plots. Treatments distributed randomly to the unit plots in each block. Total unit plot was 20 and plot size was 4.5 m x 3.15 m and the spacing among the plots was 20 cm. There were five treatments as follows: T1: RD (Recommended Dose (N75 P12 K45 S9)), T2: STB (Soil Test Basis (N74 P11 K36 S7)), T3: N54 P5 K27 S5 (Combined Nutrient Management (CNM) + CD ( Cowdung) @ 5.0 t ha−1, T4: Farmer’s
practice (N69 P30 K37) and T5: Control (no fertilizer).

2.4 Application of Manures and Fertilizers: The amounts of nitrogen, phosphorus, potash and sulphur fertilizers required per plot were calculated as per thetreatments. Cowdung was applied before one week of transplanting (9 April 2015). The full dose of TSP, MoP and Gypsum were applied one day before transplanting (15 April 2015). Nitrogen from urea was applied in 3 equal splits. The first split of urea was applied after 15 days of transplanting (1 May 2015). Second split was applied as (31 May 2015) i.e. at panicle initiation stage.
2.5 Harvesting and Data Recording: The crop was harvested at full maturity on 20 July 2015. The harvested crop from each plot was bundled separatelyand brought to the threshing floor and threshed plot-wise. Grain and straw yields were recorded plot-wise and expressed as t ha-1 on the basis of 14% moisture content.
2.6 Chemical Analyses of Plant Samples: Preparation of plant samples-The representative grain and straw samples were dried in an oven at 650 C for about 24 hours before they were ground by a grinding machine and stored in paper bags and finally kept into a desiccator until analysis.
Digestion of plant samples for total nitrogen determination An amount of 0.1g of oven dry ground plant sample (both grain and straw separately) was taken in a micro-kjeldahl flask for nitrogen determination. 1.1 g catalyst mixture (K2SO4: CuSO4. 5H2O: Se = 100: 10:1), 2 ml 30% H2O2 and 3 ml H2SO4 were added into the flask. It was swirled and allowed to stand for 30 minutes. Then heating was continued until the digest was clear and colorless. After cooling, the content was taken into a 100 ml volumetric flask and the volume was made up to the mark with distilled water. A reagent blank was prepared in a similar manner. The digest was used for nitrogen determination. Digestion of plant samples for P, K and S determination Plant sample of 0.5g (grain or straw) was transferred into dry clean 100 ml Kjeldahl flask. 10ml of di-acid mixture (HNO3: HC1O4= 2:1) was added into the flask. After leaving for a while, the flasks were heated at a temperature of 2000 C. When the flask became sufficiently clear and colorless, it boiled. After cooling, the digests was transferred into a 100 ml volumetric flask and the volume was made up to the mark with distilled water. This digest was used for the determination of P, K and S.
2.7 Determination of N, P, K and S from Plant Samples: Nitrogen: Nitrogen content digests were determined by micro-kjeldahl method. 40% NaOH was added for distillation after digestion complete. The evolved ammonia was trapped into 4% H3BO3 solution and 5 drops of mixed indicator of bromocressol green (C21H14O5Br4S) and methyl red (C10H10N3O3) solution. Finally the distillate was titrated with standard 0.01 N H2SO4 until the color changed from green to pink.
Phosphorus: Phosphorus was determined following the procedure of using 1ml digest for grain sample and 2 ml digest for straw sample from 100 ml extract. Then the sample was shaking with 0.5 M NaHCO3 solution at pH 8.5 following Olsen method. The extracted phosphorus was determined by developing blue color by SnCl2 reduction of phosphomolybdate complex and measuring the intensity of color spectrophotometrically at 660 nm wavelength. The readings were calibrated to the standard P curve.
Potassium: 5 ml of digest for the grain and 10 ml for the straw was taken with 1.0 N NH4OAc (pH 7) and diluted to 50 ml volume to make desired concentration. K was determined from the extract by using Flame photometer and calibrated with a standard curve.
Sulphur: Sulphur was determined by using 10 ml of digest (both for grain and straw) from 100 ml extract with CaCl2 solution
(0.15%). The S content in the extract was estimated turbidimetrically and readings were taken by spectrophotometer at 420 nm.
2.8 Determination of Nutrient Uptake: After chemical analysis of grain and straw samples, the nutrient content were calculated and from the value of
nutrient concentration. Nutrient uptakes were also calculated by the following formula:

Nutrient Uptake =[Nutrient content(%) x Yield (kg/ha)]x100

Statistical analysis: The analysis of variance for nutrient content of the plant samples were done following the ANOVA technique and the mean results in case of significant F-value were adjudged by the Duncan's Multiple Range Test (DMRT).

Source of Information: Agricultural Science; Vol. 2, No. 1; 2020

Article Link (Online Journal): https://doi.org/10.30560/as.v2n1p282

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It can be concluded that combined use of manure and fertilizers significantly increased nutrient content and uptake by BRRI dhan48. The treatment T3: CNM revealed the highest NPKS uptake while the lowest value was recorded over the control. Integrated Nutrient Management practice keeps soil healthy with a higher yield of BRRI dhan48. So, farmers should follow this technique to minimize soil pollution and get economically benefitted from rice cultivation. Further research should be recommended for more confirmation of the result.

Knowledge Management: Journal