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Yield Response of Mungbean, T. Aus and T. Aman Rice to Npk Fertilizers in Ganges Tidal Floodplain

M. I. A. Howlader
Scientific Officer
On-Farm Research Division, Bangladesh Agricultural Research Institute, Patuakhali

M. S. Islam
Scientific Officer
On-Farm Research Division, Bangladesh Agricultural Research Institute, Patuakhali

S. Rafiquzzaman
Senior Scientific Officer
Pulse Research Sub-Station, Bangladesh Agricultural Research Institute, Madaripur

M. M. A. A. Chowdhury
Scientific Officer
Soil Resources Development Institute (SRDI), Dinajpu

M. M. Rashid
Scientific Officer
SRDI, Noakhali, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at farmers’ field of Farming System Research and Development (FSRD) site, Lebukhali under Patuakhali district during 1999-2000, 2000-2001 and 2001-2002 to determine the response and to find out the optimum rate of nutrients (NPK) for Mungbean-T.Aus-T. Aman cropping pattern under AEZ-13. Different three levels of NPK with control were assigned in RCB design with 5 dispersed replications. Average of three years study reveals that a considerable response of T. Aus and T. Aman rice to N, P and K was observed. The response was more evident in T. Aus and T. Aman rice compared to Mungbean. The results indicated that fertilizer nutrient dose that maximized yield of Mungbean, T. Aus and T. Aman rice were 12-15-6 kg/ha, 78-24-15 kg/ha and 48-13-13 kg/ha NPK, respectively while 11-10-6 kg/ha NPK was profitable for Mungbean, 70-19-14 kg/ha NPK for T. Aus rice and 45-11-13 kg/ha NPK for T. Aman rice in respect of yield and economics.

Keywords: Cropping pattern, Yield, Fertilizer

Location: Farmers’ field of Farming System Research and Development (FSRD) site, Lebukhali under Patuakhali district

Start Date: 00-00-1999

End Date: 00-00-2002

Program Area: Farming System

Commodity: Fertilizer

Objectives:

To determine an economically optimal dose of fertilizer nutrients for MungbeanT. Aus and T. Aman cropping pattern at Patuakhali under AEZ-13.

Methodology:

The experiment was conducted at farmers’ field of Farming System Research and Development (FSRD) site, Lebukhali under Patuakhali district during 1999-2000, 2000-2001 and 2001-2002. The land type was medium high land with pH 6.24. The initial soil nutrient status of the experimental plot was total nitrogen 0.16%, P, S and Zn level 7.55, 57.92 and 3.80 μg g^-1soil, respectively and K level 0.30 meq 100 g^-1 soil. Soil organic matter was 1.62% . The experiment was laid out in a randomized complete block (RCB) design with five dispersed replications. The unit plot size was 5 m × 4 m. The crop variety was BARI mung-2 for Mungbean, BRRI dhan27 for T. Aus rice and local improved variety (Sada mota) for T. Aman rice. Four different levels of N, P and K for Mungbean, T. Aus and T. Aman were tested on the basis of soil analysis. The experiment was initiated with Mungbean. Mungbean was sown on 01-04 February in a continuous row keeping line to line 30 cm apart and was harvested on 18-22 April. Thirty days old seedling of T. Aus rice was transplanted on 26-30 April with a spacing of 25 cm × 15 cm and was harvested on 13-17 August. Same aged seedling of T. Aman rice was transplanted on 21-25 August with same spacing as T. Aus rice and was harvested on 25-31 December. Fertilizer doses were calculated according to initial soil status of the experimental plots using Fertilizer Recommendation Guide. All fertilizers were applied as basal in Mungbean. In case of T. Aus and T. Aman rice entire quantity of P and K were applied as basal dose at the time of final land preparation and N was applied in three equal splits as top dress at 15 days after transplanting (DAT), at maximum tillering stage and before panicle initiation stage. The source of N, P and K were urea, TSP and MP, respectively. Cymbush was applied to control the Thrips of Mungbean. No other disease or pest was reported in any of the three crops. Data on yield and yield attributes were recorded and analyzed statistically. Regression analysis was done and optimum and economic dose of fertilizer nutrients were calculated using the formula Y = -b/2c and Y = 1/2c (Pf/Py -b), respectively from the response curve.

Source of Information: J. Soil. Nature. 1 (3):11-19, (2007)

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The cumulative results indicated that fertilizer nutrient dose that maximized yield of Mungbean, T. Aus and T. Aman rice were 12-15-6 kg/ha, 78-24-15 kg/ha and 48-13-13 kg/ha NPK, respectively while 11-10-6 kg/ha NPK was profitable for Mungbean, 70-19-14 kg/ha NPK for T. aus rice and 45-11-13 kg/ha NPK for T. Aman rice in respect of yield and economics. The present recommended doses were relatively lower but judicious that ensure higher yield than that of farmers’ traditional practices and it will be helpful to improve soil health for sustainable higher yield. So, 11-10-6 kg/ha NPK for Mungbean, 70-19-14 kg/ha NPK for T. Aus rice and 45-11-13 kg/ha NPK for T. Aman rice could be proposed for recommendation for Patuakhali in Ganges Tidal Floodplain area (AEZ-13).

Knowledge Management: Journal