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 Combined Use of Different Organic Manures and Chemical Fertilizers on the Yield and Nutrient Uptake of T. Aman Rice Var. BRRI Dhan31

M. E. Ali
Scientific Officer
Soil Science Division, BARI, Joydebpur, Gazipur

M. R. Islam
Professor
Department of Soil Science, BAU, Mymensingh

M. Jahiruddin
Professor
Department of Soil Science, BAU, Mymensingh

M. N. Rahman
Lecturer
Department of Soil Science, HSTU, Dinajpur, Bangladesh

S. M. Sayem
Assistant Professor
Department of Soil Science, HSTU, Dinajpur, Bangladesh

Abstract/ Executive Summary:

Nutrient uptake by T. Aman var. BRRIDhan31 were greatly influenced by the applications of different organic manures in combination with chemical fertilizers. Application of 70% NPKS + PM produced the highest grain yield of T. Aman rice, which was identical to that obtained with 100% NPKS with no manure. The grain yield ranged from 2.84 t ha-1 in T1 (control) to 5.52 t ha-1 in the 70% NPKS + PM. The application of 3 t ha-1 PM with 70% NPKS (T8) produced the highest grain yield of 5.52 t ha-1, as well as the highest straw yield of 6.73 t ha-1. It appears that the application of 3 t ha-1 PM with 70% NPKS can reduce the use of 30% NPKS as fertilizers. The economic analyses revealed that most of the treatments produce BCR (benefit-cost ratio) more than 3.0 showing that all of them were economically viable. The overall findings of the study indicated that the integrated use of chemical fertilizer and manure was important for producing better yield of T. aman rice.

Keywords: Organic manure, Nutrient uptake, Rice

Location: Bangladesh Agricultural University farm, Mymensingh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: T. Aman, Fertilizer and manures

Objectives:

The long-term research of BRRI revealed that the application of cowdung @ 5 t ha–1 yr-1 improved rice productivity as well as prevented the soil resources from degradation (Bhuiyan, 1994). Thus, it is necessary to use fertilizer and manure in an integrated way in order to obtain sustainable crop yield without affecting soil fertility. Based on the soil fertility problem as discussed above, the present study was undertaken to investigate the effect of combined use of chemical fertilizers and organic manures in producing T. Aman rice var. BRRI dhan31.

Methodology:

A field experiment was conducted at Bangladesh Agricultural University farm, Mymensingh to evaluate the suitability of different sources of organic materials for integrated use with chemical fertilizers for the yield and nutrient uptake of T. Aman rice var. BRRI dhan31. The soil was Non-Calcareous Dark Grey Floodplain. The cultivar was used BRRI dhan31. The experiment was designed with eight treatments for both the crops. The experiment was laid out in a randomized complete block design with three replications. The unit plot size was 5m x 4m. The treatment combinations were: T1 (control), T2 (70% NPKS), T3 (100% NPKS), T4 (70% NPKS + RS), T5 (70% NPKS + DH), T6 (70% NPKS + MBR), T7 (70% NPKS + CD) and T8 (70% NPKS + PM).

The rates of N, P, K and S for the T. Aman rice was 100, 15, 45 and 10 kg ha-1 . Five different sources of organic matters, viz., rice straw (RS), dhaincha (DH), mungbean residues (MBR), cowdung (CD) and poultry manure (PM) were applied @ 5, 15, 10, 5 and 3 t ha-1 , respectively. Urea was applied in three equal splits. The first split was applied during final land preparation, the second split at active tillering stage and the remaining split at panicle initiation stage of the crop. Organic manure was applied to soil before final land preparation. All the cultural practices were done in time. Grain and straw were analyzed for determination of N, P, K and S contents. All the data were analyzed statistically following the F-test and the mean comparisons were made by DMRT at 5% level.

Source of Information: J. Sci. technol. (Dinajpur) Vol. 5: 81-88 (2007) ISSN 1994-0386

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based on the findings of the experiment, it may be concluded that for efficient production of T. aman rice, it is judicial to use organic manure or crop residues with chemical fertilizers.

Knowledge Management: Journal