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 Alley Widths of Gliricidia Sepium and Nitrogen Levels on Soil Properties After Harvesting of Rice

S Mondal
Scientific Officer
RFS Div., BRRI, Gazipur.

G Miah
Professor
Dept. of Agro-forestry and Environment, BSMRAU, Gazipur.

M A Saleque
Principal Scientific Officer
Soil Science Div., BRRI, Gazipur.

A Rahman
Associate Professor
Dept. of Agro-forestry and Environment, BSMRAU, Gazipur.

T Ahamed
Associate Professor
Dept. of Agro-forestry and Environment, BSMRAU, Gazipur.

M I Hossain
Scientific Officer
Central lab, SAU, Sylhet.

Abstract/ Executive Summary:

An experiment was conducted to investigate the performance of Gliricidia sepium at different nitrogen levels and effect of alley widths of Gliricidia sepium on soil properties at the research farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) during May 2008 to September 2008. Three alley widths 3.0. 4.5. and 6.0 m and a control, without tree were compared under five N doses 0, 18.75, 37.5, 56.25 and 75 kg ha^-1. G. septum species of the closer alley width (3.0 m ) produced the highest (20.42 t ha^-1) pruned materials. The soil properties in respect of soil pH, organic carbon, cation exchange capacity in the top layer increased after alley cropping but NH₄-N and NO₅-N status were lower than the initial soil. However, soil pH, OC and CEC were increased because of practicing alley cropping by 1.58, 8.57 and 4.82% compared to the initial soil, respectively. The study suggests that Gliricidia sepium can contribute to soil organic carbon as well as rice yield.

Keywords: Soil properties, Alley cropping, Nitrogen levels, Pruning materials.

Location: Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) research farm, Gazipur.

Start Date: 00-05-2008

End Date: 00-09-2008

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To investigate the performance of Gliricidia sepium at different nitrogen levels and effect of alley widths of Gliricidia sepium on soil properties

Methodology:

The experiment was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) research farm, Gazipur during the period from May 2008 to September 2008 under rain fed condition. The experiment was laid out in a split plot design having three replication. The Gliricidia septum alley widths were 3.0, 4.5 and 6.0 m. Every alley was divided into 15 unit plots comprising three replications and five levels of nitrogen. The unit plot length was 5 m. So, total area of a unit plot was 3 x 5, 4.5 x 5 and 6 m X 5 m for alley of 3.0, 4.5 and 6.0 m, respectively. The five sub-sub plots having different nitrogen levels were N_o (zero dose of N) + Pruned materials (PM), N₂₅ (25% of recommended N dose) + PM, N₅₀(50% of recommended N dose) + PM, N₇₅, (75% of recommended N dose) + PM, N₁₀₀(100% of recommended N dose) + PM. Control plots (15 in number with 3 replications) received five N levels 0, 18.75, 375, 56.25 and 75 kg ha^-1 but no PM was used in those plots. The control plots were kept to compare the results with crop yields under alley cropping system. Urea was used as the source of different nitrogen doses. The experiment was laid out in a split-plot design, each treatment had three replications. Alley widths of Gliricidia sepium were in main plots, and five nitrogen levels were distributed to sub-plot under each alley widths. Seeds were sown in line sowing in the assigned plots of alleys as well as in the control plots from 17 to 18 May 2008. The seeds were sown in line at the rate of 50 kg ha^-1 having 25 cm line to line distance.

Source of Information: Eco-friendly Agril. J. 5(01):01-05, 2012 (January)

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The highest amount of fresh pruned materials was produced and added to the soil from 3.0 m alley width which was followed by 4.5 m and 6.0 m alley width, respectively. Agronomic efficiency and apparent nitrogen recovery had negative relationship with nitrogen level but physiological efficiency and total nitrogen uptake had positive relationship with nitrogen level. The soil properties in respect of soil pH, organic carbon, cation exchange capacity in the top layer changed in a positive direction, i.e. increase after alley cropping but. NH₄-N and NO₃-N status was lower than the initial soil.

Knowledge Management: Journal