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Yield Response of Mustard, Boro and T. Aman Rice to Npks Fertilizers in High Ganges River Floodplain Soil

M. A. Siddiky
Scientific Officer
BARI, Gazipur

K. U. Ahammad
Senior Scientific Officer
OFRD, RARS, BARI, Jessore

N. Y. Shaikh
Senior Scientific Officer
ORC, BARI, Gazipur

J. A. Mahmud
Scientific Officer
OFRD, RARS, BARI, Jessore

J. C. Malakar
Additional Agriculture Officer
DAE, Khamarbari, Dhaka

Abstract/ Executive Summary:

The experiment was conducted at the Farming System Research site, Bagherpara, Jessore. During three consecutive years of Mustard, Boro and T. Aman season of 2000 to 2003 to determine the response and to find out the optimum rate of nutrients (NPKS) for Mustard- Boro and T. Aman rice on the yield under AEZ 11a. Four different levels of NPKS were assigned in RCB design with 4 replications. Average of three years study reveals that a considerable response of Mustard, Boro and T. Aman rice to NPKS was observed. However, the response to N and P was more distinct in comparison to K and S. Similarly, the response was more evident in Boro rice compared with T. Aman rice. Yield of Mustard increased up to the application of 86, 15 and 30 kg/ha of NP and S, respectively. Yield of Boro rice increased up to the application of 125, 7 and 12 kg/ha of N, P and S, respectively. But in T. Aman yield was increased up to the application of 80, 8 and 14 kg/ha of NP and S, respectively. From the regression analysis it was found that the relationship was almost quadratic in nature. The application of 84-13-25 kg NPS/ha for Mustard, 121-6-10 kg NPS/ha for Boro rice and 75-7-12 kg NPS/ha for T. Aman rice was the beneficial and most economically optimum fertilizer dose in High Ganges River Floodplain Soil under AEZ 11a.

Keywords: Mustard, Boro, T. Aman, Optimum fertilizer rate

Location: Bagherpara Farming System Research site, Jessore

Start Date: 00-00-2001

End Date: 00-00-2003

Program Area: Farming System

Commodity: Fertilizer

Objectives:

To determine an economically optimal dose of fertilizer nutrients for Mustad-Boro-T. Aman rice cropping pattern at Bagarpara, Jessore under AEZ11a.

Methodology:

A trial with Mustard-Boro-T. Aman cropping system was conducted at Bagherpara Farming System Research site, Jessore (AEZ-lla and land type-MHL) BARI during 2001, 2002 and 2003. The soil was silt loom having pH 7.5, initial Soil organic matter 1.88%, total N 0.06%, exchangeable K 0.20 meq/l00 g soil, Olsen's P 6.96 ppm, available S 19.3 ppm, available Zn 0.95 ppm and available B 0.40 ppm. The experimental plot of Mustard was laid out in randomized complete block design with four dispersed replications. The unit plot size was 5 m x 3 m. Four different levels of N(0, 61, 86 and 120), P(0, 11, 15 and 21), and S(0, 24, 30 and 42), for Mustard, Boro and T. Aman rice was tested based on the soil analysis. Mustard (var. Tori-7 seed rate was 80 (eighty) kg/ha was sown during 3rd week of November and harvested during the 2^nd week of February. Forty days old seedlings of Boro (var. BRRI dhan28) rice were transplanted during 3rd week of February with a spacing of 25 cm X 15 cm and harvested during the last week of May. Thirty days old seedlings of T. Aman rice (var. BR-11) were transplanted during last week of July with a spacing of 20 cm X 15 cm and were harvested during the last week of November. Fertilizer doses were calculated according to original soil status of the experimental plots using Fertilizer Recommendation Guide. In case of mustard, half of N and the whole amount of P, K, S, Zn were applied at the time of final land preparation. The rest half of N was top-dressed at 40 days after sowing. In case of rice the entire quantity of P, S and Zn 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 Day after transplanting (DAT), at maximum tillering stage and before panicle initiation stage. Data on yield and yield attributes were recorded and analyzed statistically by Duncan’s Multiple Range Test (DMRT). Regression analysis was done and the optimum and economic dose of fertilizer nutrients were calculated using the formula.

Source of Information: Int. J. Sustain. Crop Prod. 4(1):49-54, 2009

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The cumulative result indicated that fertilizer dose that maximized yield of Mustard was 86-15-30 kg NPS/ha, Boro rice was 125-7-12 kg NPS/ha and 80-8-14 kg NPS/ha for T. Aman rice while 84-13-25 kg NPS/ha was profitable for Mustard, 121-6-10 kg NPS/ha for Boro and 75-7-12 kg NPS/ha for T. Aman in respect of yield and economics. The present recommended dose is relatively lower but judicious that ensures higher yield than that of farmer’s traditional practices; and it will be helpful to improve soil health for sustainable higher yield. So, 84-13-25 kg NPS/ha for mustard, 121-6-10 kg NPS/ha for Boro and 75-7-12 kg NPS/ha for T. Aman rice could be proposed for recommendation in high Ganges river floodplain area under AEZ 11a.

Knowledge Management: Journal