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Applied on Various Inorganic Fertilizers in Soil and to Evaluate the Effect of Nutrient Content and Uptake of T. Aman Rice (brri Dhan49)

Md. Romel Biswash
Adaptive Research Division, Bangladesh Rice Research Institute, Bangladesh

Mashuka Sharmin
Horticulture Research Center, Bangladesh Agricultural Research Institute, Bangladesh

Md. Maksudul Haque
Plant Breeding Division, Bangladesh Rice Research Institute, Bangladesh

Golam Sarwar Jahan
Adaptive Research Division, Bangladesh Rice Research Institute, Bangladesh

M.M. Emam Ahmed
Plant Breeding Division, Bangladesh Rice Research Institute, Bangladesh

Abstract/ Executive Summary:

The experiment was conducted at the research field of Bangladesh Rice Research Institute (BRRI), Gazipur during Aman season of 2012 in applied on various inorganic fertilizers in soil and to evaluate the effect of nutrient content and uptake of T. Aman rice. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. There were seven treatments such as control, Recommended Fertilizer Dose (RFD), 50% reduced rate of N, 50% reduced rate of P, 50% reduced rate of K, 50% reduced rate of S and 50% reduced rate of Zn. The highest grain yield of 6.16 t ha^-1 was observed in the treatment 50% reduced rate of N which was statistically identical to those recorded in the treatments 100% recommended fertilizer dose and 50% reduced rate of P, effective tillers hill^-1, filled grains panicle^-1, 1000-grains weight had also higher in the treatment T₃ and unfilled grains panicle lower in the treatment T₃. However, plant height and panicle length had higher in 50% reduced rate of P. It was observed that application of 50% reduction of N fertilizers from RFD affected non-significantly both in yield contributing traits, nutrient content and nutrient uptake by grain and straw of BRRI dhan49 compared to RFD. Grain yield was increased with increasing nutrient uptake by BRRI dhan49. Therefore, the treatment 50% reduced rate of N fertilizer performed better than RFD and other treatments.

Keywords: Inorganic fertilizer, Yield, Nutrient content, Nutrient uptake

Location: Research field of Bangladesh Rice Research Institute (BRRI), Gazipur

Start Date: 00-07-2012

End Date: 00-12-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

Objective of the study was to evaluate the effect of nutrient content and uptake by T. Aman rice.

Methodology:

The experiment was conducted at the west beyd of BRRI farm, Gazipur during the period of Aman season of 2012. The area belongs to the Agro-ecological Zone (AEZ- 28) Madhupur Tract. The experiment was laid out in a Randomized Complete Block Design (RCBD) with three replications. The soil of the experimental field was silty clay loam in texture and neutral in reaction. Organic C, total N, available P (Modified Olsen’s) and exchangeable K (N NH OAc) of the soil were 1.45%, 40.10%, 13 ppm and 0.23 meq/100 g soil, respectively. The available S (calcium dihydrogenphosphate) and Zn (DTPA) were 20 ppm and 5 ppm, respectively. The climate of the experimental site is sub-tropical, wet and humid. There were 21 (7 x 3) unit plots. The unit plot size was 2.5 m x 4 m. The spacing between blocks was 1 m and between plots was 0.5 m. The treatments were randomly distributed to unit plots in each block. Twenty five day old seedlings were transplanted in the experimental plots on 20 August 2012. A distance of 20 cm from row to row and 20 cm from plant to plant was maintained. Two seedlings were used in each hill. The crops were harvested at a time due to 80% maturity of grains. Treatments: There were 7 treatments including one control treatment. The treatment combinations for the experiment were as follows: T₁: Control, T₂: Recommended fertilizer dose (RFD), T₃: RFD -50% N, T₄: RFD- 50% P, T₅: RFD -50% K, T₆: RFD -50% S, T₇: RFD -50% Zn. Recommended Fertilizer Dose (RFD) = 100 kg N ha^-1, 15 kg P ha^-1, 50 kg K ha^-1, 15 kg S ha^-1and 1.5 kg Zn ha^-1. The sources of N, P, K, S and Zn nutrients were Urea, MoP, Gypsum and Zinc sulphate, respectively. Data collection: Yield and yield contributing characters such as plant height (cm), number of effective tillers hill^-1, panicle length (cm), filled and unfilled grains panicle^-1, 1000–grain weight (g), grain yield (t ha^-1 ) and straw yield (t ha^-1 ) were recorded at the time of harvest. Data analysis: All the collected data were analyzed by following the analysis of variance (ANOVA) technique and mean differences were adjudged by Duncan’s Multiple Range Test (DMRT) using a computer operated statistical program named MSTAT-C.

Source of Information: European Journal of Applied Sciences, 6 (3): 50-56, 2014

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Application of 50% reduction of N fertilizers from RFD affected non-significantly both in yield contributing traits, nutrient content and nutrient uptake by grain and straw of BRRI dhan49 compared to RFD. Grain yield was increased with increasing nutrient uptake by BRRI dhan49. Therefore, the treatment 50% reduced rate of N fertilizer performed better than RFD and other treatments.

Knowledge Management: Journal