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Influence of Integrated Use of Organic Manure and Chemical Fertilizers on Yield and Yield Components of Rainfed Lowland Rice Cv. BINAdhan 4

A Mahmud
Researcher, Dept. of Soil Science, BAU, Mymensingh

AKMA Hoque
SAD, NATA, Gazipur

MR Bhuiyan
Plant Pathology Division BRRI, Gazipur

MR Islam
Dept. of Soil Science, BAU Mymensingh, Bangladesh

MH Rahman
Dept. of Soil Science, BAU Mymensingh, Bangladesh

Abstract/ Executive Summary:

An investigation was carried out at BINA (Bangladesh Institute of Nuclear Agriculture) farm, Mymensingh during kharif-2 (T. aman) season of 2010 to evaluate the effect of organic manures (tobacco dust and press mud) and fertilizers on the yield as well as nutrient status both at grain and straw of T. aman variety (Binadhan-4). The experiment comprises of nine treatments laid out in a Randomized Complete Block Design. The treatments included, T₁ : Control (without application of any plant nutrients), T₂ : Recommended Fertilizer Dose (RFD) based on AEZ , T₃ : RFD based on HYG, T₄ : 75% RFD based on AEZ + 1 ton press mud/ha, T₅ : 75% RFD based on AEZ + 1 ton tobacco dust/ha, T₆ : 75% RFD based on AEZ + 2 ton press mud/ha, T₇ : 75% RFD based on AEZ + 2 ton tobacco dust/ha, T₈ : RFD based on HYG + 2 ton press mud/ha based on IPNS and T₉: RFD based on HYG + 2 ton tobacco dust/ha based on IPNS. Integrated application of manures and fertilizers significantly increased the yield and yield components of Binadhan-4. The treatment T₉produced the highest grain (5.00 t ha^-1) and straw (7.58 t ha^-1) yield however, lowest grain (2.15 t ha^-1) along with lowest straw (3.33 t ha^-1) yield were recorded in control treatment. The N, P, K and S contents both at grain and straw of Binadhan-4 were also influenced due to application of manures and fertilizers. Highest %N and %P were obtained at T₇ while highest %K and %S were detected at T₉ in case of grain. In case of straw, highest %N, %P and %K were detected at T₉, T₆ and T₉, respectively, while %S showed insignificant irrespective of treatment. From this study, it was concluded that application of tobacco dust is better than that of press mud as organic manure for rice production. An integration of organic manure and chemical fertilizers is also necessary for maximizing rice yield under rainfed lowland conditions.

Keywords: Fertilizer, organic manure, yield components

Location: BINA (Bangladesh Institute of Nuclear Agriculture) farm, Mymensingh

Start Date: 00-07-2010

End Date: 00-10-2010

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

The present research work was undertaken with a view to evaluating the effects of organic manures and chemical fertilizers on the yield and yield components, and nutrient uptake both in rice straw and grain of a popular rainfed lowland rice cultivar Binadhan-4.

Methodology:

An investigation was carried out during kharif-2 (T. Aman) (mid July to mid October) season of 2010 at BINA (Bangladesh Institute of Nuclear Agriculture) farm, Mymensingh with a view to evaluating the effects of manures and fertilizers on the yield and yield components, and nutrient status both in rice straw and grain of Binadhan-4. The soil belongs to sonatola series under the AEZ of Old Brahmaputra Floodplain. The soil was silty loam in texture having pH 6.2, organic matter content 1.57%, total N 0.09%, available P 13.0 ppm exchangeable K 0.034 meq.%, and available S 6.29 ppm. The experimental area belongs to sub-tropical climate and is characterized by high temperature accomplished by moderately high rainfall during kharif season. There were altogether nine treatment consisting of N, P, K and S fertilizers applied as urea, TSP, MOP and gypsum, respectively in association with two sources of organic manures such as tobacco dust and press mud. The treatment include, T₁: Control (without application of any plant nutrients), T₂: RFD based on AEZ, T₃: RFD based on HYG, T₄: 75% RFD based on AEZ + 1 ton press mud/ha, T₅ : 75% RFD based on AEZ + 1 ton tobacco dust/ha, T₆ : 75% RFD based on AEZ + 2 ton press mud/ha, T₇: 75% RFD based on AEZ + 2 ton tobacco dust/ha and T₈ : RFD based on HYG + 2 ton press mud/ha based on IPNS, T₉: RFD based on HYG + 2 ton tobacco dust/ha based on IPNS. The experiment was laid out in a Randomized Complete Block deign with three replications. The total number of unit plots was 27 and the size of unit plot was 5m x 4m. Total amount of P, K and S fertilizers were applied as basal during final land preparation but urea was applied in 3 equal splits. Tobacco dust and press mud were applied 7 days before transplanting. Forty day old seedlings were transplanted in the experimental plots maintaining three seedlings per hill. Intercultural operations were done as and whenever required. At maturity, the crop was harvested. The grain and straw samples were analyzed for N. P, K and S content following Micro kjeldahl method, 1 N NH₄OAC solution and CaCl₂ solution (0.15%), respectively. Initial and post harvest soil samples were also analyzed for physical and chemical properties of soil. All the data were statistically analyzed by F-test and the mean differences were adjudged by Duncan's Multiple Range Test (DMRT).

Source of Information: Eco-friendly Agril. J. 8(08): 86-90, 2015 (August); ISSN 1999-7957

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Funding Source:

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Total Budget (Tk.) :

Achievement/Findings:

It could be concluded from the present study that the application of tobacco dust based on IPNS with the recommended dose of chemical fertilizers showed better performance in respect of grain yield, yield contributing characters, nutrient content and uptake. So the application of tobacco dust based on IPNS with chemical fertilizers will be beneficial for T. aman rice cultivation.

Knowledge Management: Journal