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 Double/triple Rice Cropping Pattern for Maximizing Yield and Sustaining Soil Fertility

Masuda Akter
Senior Scientific Officer
Soil Science Division, BRRI Gazipur

Pranesh Kumar Saha
Principal Scientific Officer
Soil Science Division, BRRI Gazipur

S. Kaiser Zaman
Chief Scientific Officer
Soil Science Division, BRRI Gazipur

Abstract/ Executive Summary:

The highest grain yield of Boro, 2009 (4.77 t/ha) was obtained with the treatment T₃which was statistically similar with the treatment T₂ (4.54 t/ha) but dissimilar with the treatment T₁ and T₄. In T. Aus the highest grain yield of 3.15 t ha^-1 was obtained with the treatment T3 which was statistically similar with the treatment T₂ (3.09 t ha-1) but dissimilar with the treatment T₁ and T₄. In T. Aman, BR22 produced the highest grain yield of 3.60 t ha^-1 with the treatment T₃ which was statistically similar with the treatment T₄ (3.25 t ha^-1) but dissimilar with the treatment T₁ and T₂. Under Boro-Fallow- T. Aman cropping pattern the effect of fertilizer on grain yield of BRRI dahn49 was not significant. Finally, Boro – T. Aus – T. Aman cropping pattern gave higher yearly yield than Boro – fallow – T. Aman pattern. The treatment receiving 50% of STB fertilizer + mixed manure (cowdung 2 t/ha + ash 1 t/ha + azzola) gave highest yearly yield (11.52 t/ha) in Boro – T. Aus – T. Aman cropping pattern compared to 8.81 t/ha in Boro – fallow – T. Aman pattern.

Keywords: Ash, Azolla, Cowdung, Cropping pattern, Mixed manure, Rice.

Location: Bangladesh Rice Research Institute farm, Gazipur

Start Date: 1-7- 2008

End Date: 30-6- 2009

Program Area: Crop-Soil-Water Management

Commodity: Rice, Soil fertility

Objectives:

1. to observe the effect of continuous wetland rice cultivation under Boro-Fallow- T. Aman and Boro-T. Aus - T. Aman cropping pattern on soil fertility and yield sustainability

Methodology:

The experiment was initiated in Boro 2009 as first crop of the both cropping pattern at BRRI Farm Gazipur. Selected variety for Boro and T. Aus season were BRRI dhan29 and BRRI dhan43, respectively. BR22 and BRRI dhan49 was selected for T. Aman season. The soil of the experimental field was clay loam in texture. Four treatment combinations were tested viz. T₁= native nutrients, T₂= 100%STB dose (NPKSZn @ 160-25-60-20-0 kg ha-1 for Boro, NPKSZn @ 70-12-48-10-0 kg ha^-1 for T. Aus and NPKSZn @ 84-15-54-14-0 kg ha^-1 for T. Aman), T₃= 50%STB+Mixed manure (CD 2 t ha^-1+ash 1 t ha^-1as oven dry basis + Azolla), T₄= Farmers’ practice (NPKSZn @ 80-10-20-10-0 kg ha^-1 for Boro, NPKSZn @ 70-10-15-0-0 kg ha^-1 for T. Aus and NPKSZn @ 70-10-15-0-0 kg ha^-1 for T. Aman). The experiment was laid out in a RCB design with three replications. Urea N was applied in three 3 equal splits i.e. 1/3 at final land preparation, 1/3 at active tillering stage and 1/3 at 5-7 days before PI stage. Cow dung, ash, TSP, MOP and gypsum were applied at final land preparation. The unit plot size was 8m X 5 m. 2-3 seedlings were transplanted per hill with 20cm X 20cm spacing. At maturity, the crop was harvested form 5 m² areas at the centre of each plot and 16 hills were collected for straw yield. The grain yield was recorded at 14% moisture content and straw yield as oven dry basis. Grain and straw samples were collected for chemical analysis. Nitrogen content from plant samples were determined by micro Kjeldahl distillation method. Phosphorus, potassium, sulfur, zinc and copper content of these samples were determined by using standard laboratory procedure.

Source of Information: Proceedings of BRRI Annual Internal Review, 2008- 2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The annual grain yield was higher in Boro-T. Aus - T. Aman cropping pattern than that of Boro-Fallow - T. Aman rice cropping pattern. The treatment T3 produced the highest annual grain yield of 11.52 t/ha followed by T2 (10.55 t/ha) in Boro-T. Aus - T. Aman cropping pattern while in Boro-Fallow-T. Aman cropping pattern the treatment T3 also produced the highest annual grain yield (8. 81 t ha) followed by T2 (8.50 t/ha). The highest nitrogen uptake of 108 kg/ha was obtained with the treatment T2 which was statistically dissimilar with the treatment T1, T3 and T4. The highest potassium uptake of 63 kg/ha was obtained with the treatment T3 which was statistically dissimilar with the treatment T1, T2 and T4. The highest phosphorus, sulfur, zinc and copper uptake of 20, 20, 0.82 and 0.07 kg/ha, respectively were obtained with the treatment T3 which were statistically similar with the treatment T2 but dissimilar with the treatment T1 and T4. Boro – T. Aus – T. Aman cropping pattern gave higher yearly yield than Boro – fallow – T. Aman pattern. The treatment receiving 50% of STB fertilizer + mixed manure (cowdung 2 t/ha + ash 1 t/ha + azzola) gave highest yearly yield (11.52 t/ha) in Boro – T. Aus – T. Aman cropping pattern compared to 8.81 t/ha in Boro – fallow – T. Aman pattern.

Knowledge Management: Report/Proceedings