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

Effect of Tree Leaf Biomass on Soil Fertility and Yield of Rice

B.N. Tanzi
Department of Agroforestry, Bangladesh agricultural University, Mymensingh- 2202

M.S.A. Arifin
Department of Agroforestry, Bangladesh agricultural University, Mymensingh- 2202

M.A. Mondol
Department of Agroforestry, Bangladesh agricultural University, Mymensingh- 2202

A.K. Hasan
Department of Agronomy, Bangladesh agricultural University, Mymensingh- 2202

M.A. Wadud
Department of Agroforestry, Bangladesh agricultural University, Mymensingh- 2202

Abstract/ Executive Summary:

A field experiment was conducted in the Agroforestry Field Laboratory, Bangladesh Agricultural University, Mymensingh during the period from July to December 2011 to find out the response of different leaf biomass application on yield contributing characters and yield of rice cv. BR11(Mukta). Seven experimental treatments such as T₁ = kalo koroi leaf biomass, T₂ = Sada koroi leaf biomass, T₃ = Raintree leaf biomass, T₄ = Krishnochura leaf biomass, T₅ = Jhau leaf biomass, T₆ = Recommended fertilizer dose, T₇ = Control were imposed in this study. The experiment was conducted in a Randomized Complete Block Design (RCBD) with three replications. Soil fertility status was determined before and after the study. Yield and yield contributing characters viz. plant height (cm), no. of total tillers hill^-1, no. of effective tillers hill^-1, panicle length (cm), number of grains panicle^-1, 1000-grain weight (g) and grain yield (t ha^-1) were recorded. Soil fertility status were examined and changed in different treatments after rice cultivation. After rice cultivation soil pH little increased where biomasses were applied. All the treatments contained green biomass organic matter (%) was improved and Nitrogen (%), phosphorus (ppm), potassium (me/100g soil), sulphur (ppm), zinc (ppm) were decreased where RFD applied due residual effect of fertilizers. Result showed that green leaf biomass had significant effect on the yield contributing characters viz. plant height, panicle length, no. of tillers hill^-1, no. of leaves hill^-1 , leaf size , no. of panicles hill^-1, no. of effective tillers hill^-1, no. of non-effective tillers hill^-1, no. of spikelets panicle^-1, 1000-grain weight The highest grain yield 5.86 t ha^-1was obtained from Treatment T₆ and second highest grain yield 5.20 t ha^-1 obtained from T₁ where kalo koroi leaf biomass was applied. Beside the green biomass of kalo koroi, green leaf biomass of krishnochura have good effect on the yield of rice.

Keywords: Tree green leaf biomass, Albizia lebbeck, Albizia procera, Albizia saman, Delonix regia, Casuarina equisetifolia, rice.

Location: Agroforestry Field Laboratory, Bangladesh Agricultural University, Mymensingh

Start Date: 00-07-2011

End Date: 00-12-2011

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

1. To find out the response of different leaf biomass application on yield contributing characters and yield of rice cv. BR11(Mukta).

Methodology:

Experimental site and soil: The experiment was carried out at the Field Laboratory of the Department of Agroforestry, Bangladesh Agricultural University, Mymensingh, during the period from July, 2010 to December, 2011. The experimental site was located at 24.75°N latitude and 90.5⁰E longitude at the mean elevation of 18m above the sea level. The experimental field was medium high land belonging to the Sonatola Soil Series of non-calcareous dark grey flood plain soil type under the agro-ecological zone of Old Brahmaputra Flood Plain. The soil consisted of sandy loam (silty loam) imperfectly to poorly drain with low permeability. Layout of the experiment: The experiment was conducted in a Randomized Complete Block Design (RCBD) with three replications. The total numbers of plots were 21. The unit plot size was 3.7 m x 2.2 m. The spacing between blocks was 100 cm and the plots were separated from each other by 40 cm space. Test crop: BRRI dhan 11 (Mukta), a modern variety of rice, was used as the test crop in this experiment. It grows well all over Bangladesh in aman season. Total growth duration of this variety ranges from 140-145 days from sowing to harvesting. It gives an average yield of 6.5 to 7.0 t/ha under proper management. Experimental treatment: Experimental treatments were T₁ = Kalo koroi leaf biomass (12 kg/plot), T₂ = Sada koroi leaf biomass (12 kg/plot), T₃ = Raintree leaf biomass (12 kg/plot), T₄ = Krishnochura leaf biomass (12 kg/plot), T₅ = Jhau leaf biomass (12 kg/plot), T₆ = Recommended fertilizer dose (RFD) and T₇ = Control. Organic materials collection and maintenance: Green leaf biomass like kalo koroi, sada koroi, raintree, krishnochura and jhau leaves, were collected the respective tree of Bangladesh Agricultural University Campus, Mymensingh. These leaves were separated from the branch. These were cut and used as green leaf biomass. These leaves were applied to the soil and remained in the soil 30 days for decomposed. Fertilizer application: Recommended dose of fertilizers such as Urea 180 kg ha^-1, TSP 90 kg ha^-1, Gypsum 60 kg ha^-1 and MOP 40 kg ha^-1. Urea was top dressed in three equal splits i.e.15, 30 and 55 days after planting (DAP). Data collection and recording: The following data were collected and recorded. A) Yield: Grain yield (kg ha^-1) and B) Yield components:Plant height (cm), number of total tillers, number of effective tillers hill^-1, panicle length (cm), number of grains panicle^-1 , 1000-grain weight (g) and grain yield (t ha^-1). Statistical analysis: The recorded data were compiled and analyzed by RCBD design to find out the statistical significance of the experimental results. The means for all recorded data were calculated and the analyses of variance for all the characters were performed. The mean differences were evaluated by Duncan’s New Multiple Range Test (DMRT)and also by Least Significant Difference (LSD) test.

Source of Information: J. Agrofor. Environ. 7 (1): 129-133, 2013; ISSN 1995-6983

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

Soil fertility status is improved in the treatment where only green leaf biomass was applied. The treatment containing green leaf biomass and recommended fertilizer dose slightly deteriorate the soil fertility status because of residual effect of fertilizer. All the yield and yield contributing characters such as plant height, panicle length, no. of tillers hill^-1, no. of leaves hill^-1, leaf size, no. of panicles hill^-1, no. of non-effective tillers hill^-1, no. spikelets panicle^-1, 1000-grain weight, and grain yield was found best results in the treatment where green leaf biomass and recommended fertilizer dose were applied over control treatment.

Knowledge Management: Journal