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Effect of Integrated Organic and Inorganic Fertilizer on Nutrient Uptake by Rice

M. M. U. Rashid
Planning and Evaluation wing, Department of Agriculture Extension, Khamarbari, Farmgate, Dhaka-1215, Bangladesh.

M. M. Riad
ANSVM Faculty, Patuakhali Science and Technology University, Dhumki, Patuakhali, Bangladesh.

D. Hossain
ANSVM Faculty, Patuakhali Science and Technology University, Dhumki, Patuakhali, Bangladesh.

M. K. Islam
ANSVM Faculty, Patuakhali Science and Technology University, Dhumki, Patuakhali, Bangladesh.

M. Shahjahan
Forestry Unit, Natural Resources Management Division, Bangladesh Agricultural Research Council, Farmgate, Dhaka-1215, Bangladesh.

Abstract/ Executive Summary:

A field experiment was conducted to assess the effects of integrated use of urea with cowdung, poultry manure and urban wastes in boro rice (Var. BRRI dhan29) at the Bangabandhu Sheikh Mujibur Rahaman Agricultural University, (BSMRAU), Gazipur during 2008-2009, Urea at the rate of 47.5 kg N/ha (50% of recommended N) along with PKS and cowdung, poultry manure or urban wastes at the rates of 11.5, 9.5 or 11.8 t/ha, respectively resulted in better nutrient uptake by grain or straw compare to urea alone, but the effect of poultry manure was the most pronounced than that of cowdung and urban wastes. Soil pH value decreased slightly as compared to that of initial soil. Application of urea-nitrogen alone slightly decreased the organic matter, total N and available P contents. The overall results indicate that urea nitrogen at the rate of 47.5 kg/ha along with PKS and 9.5 t poultry manure/ha was the best treatment for higher sustainability of soil fertility.

Keywords: Integrated organic, Inorganic fertilizer, Nutrient, Rice.

Location: Bangabandhu Sheikh Mujibur Rahaman Agricultural University, Salna, Gazipur-1706, Bangladesh

Start Date: 00-00-2008

End Date: 00-00-2009

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To evaluate the effect of integrated use of urea with cowdung, poultry,-manure, urban wastes on the yield and nutrient uptake by crops and soil properties in the rice-rice pattern.

Methodology:

The experiment was carried out at the Research Farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Gazipur during boro season of 2008-09. The soil belongs to Madhupur Tract (AEZ 28), Salna series and is fall the order of Inceptisols. A high yielding variety BRRI dhan29 was used as the test crop. The soil was silty clay loam mentioning porosity 48.50%, bulk density 1.29 g/cc, particle density 2.58 g/cc, pH 5.80, organic carbon 0.83%, total N 0.12%, available P 12.90 ppm, exchangeable K 0.52 meq./l00 g soil and available S 12.98 ppm. Cowdung contained 0.82% N, 0.25% P, 0.50% K and 0.11% S, poultry manure 1.00% N, 0.30% P, 0.55% K and 0.16% S and urban wastes 0.80% N, 0.21% P, 0.45% K and 0.09% S. The randomized Complete Block design (RCBD) with three replications was used for the experiment. The unit plot size was 4.0 m x 2,5 m. Treatments were:T₀ = control, T₁ = 47.5: N:28P:57K:15 S Kg/ha, T₂= 75: N:28P:57K:15 S Kg/ha, T₃ = 95:N:28P:57K:15S Kg/ha, T₄ -47.5:N:13.63 P:28.3K:8.68 S Kg/ha + CD 5.75 t/ha, T₅ = 71.5:N:13.63 P:28.3K:8.68 S Kg/ha + CD 2.85 t/ha, T₆ = 47.5:N: 4.75 P Kg/ha + PM 4.75 t/ha, T₇= 71.5:N:13.75 P:30.&8 K:7.4 S Kg/ha + PM 2.37 t/ha, T₈ = 71.5:N:13.75 P:30.8S K:7.4: S Kg/ha + UW 5.75 t/ha, and T₉ = 71.5:N:9.75 P:30.50K:9.69 S Kg/ha + PM 2.85 t/ha,. Each treatment received equally 1.0 Zn Kg/ha and phosphorus, potassium and sulphur were adjusted where organic manures were applied. Recommended dose and fertilizer application method was used (FRG, 2005). Ninety five Kg N was used on 100% basis in treatment T₃ and subsequently 50% and 75% @ 47.5 and 71.7 Kg N/ha for treatment T₁ and T₂, respectively. Well decomposed poultry manure (PM), cowdung (CD) and Urban wastes (UW) were applied 25 and 50% basis of the recommended dose as per treatments one week before final land preparation. Nitrogen as urea was top dressed in three equal installments (splits) at 12, 35 and 58 days after transplanting. Thirty five days old seedlings were transplanted on 10 January, 2008. Distances of 20 cm from row to row and 15 cm from plant to plant were maintained. Intercultural operations like weeding and irrigation were done as and when necessary. The crops were harvested plot wise at maturity after 155 days in boro season (seed to seed). The analysis of variance for the crop characters and also the nutrient content of the plant samples were done following the ANOVA technique and the mean values were adjusted by Duncan's Multiple Range Test (DMRT).

Source of Information: Bangladesh Journal of Agriculture, Vol: 37(1), pp: 83-90, 2012, ISSN: 0253-5408

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Combined application of fertilizer along with cowdung, poultry manure and urban wastes performed better in respect of nutrient uptake by grain and straw than that of urea nitrogen alone. Nitrogen at the rate of 47.5 kg/ha along with PKS and 9.5 t poultry manure/ha was the best treatment for higher sustainability of soil fertility. Among the organic sources, poultry manure performed best in nutrient uptake by rice. Organic manuring insignificantly increased organic matter, total N, available P, exchangeable K and available S contents in post harvest soil compared to initial soil. The result should that 47.5 kg N along with PKS and poultry manure at the rate of 4.75t/ha may be suitable dose for higher yield of boro rice. Cowdung or urban wastes at the rate of 5.75 t/ha, respectively could be applied in boro rice if poultry manure is not available.

Knowledge Management: Journal