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Effect of Fertilizer on the Growth and Yield of Modern Fine Rice Varieties in Acid Soil

M A Aziz*
Department of Soil Science,Sylhet Agricultural University, Sylhet 3100, Bangladesh

M A Kashem
Department of Soil Science,Sylhet Agricultural University, Sylhet 3100, Bangladesh

M N H Miah
Departmentof Agronomy and Haor Agriculture, Sylhet Agricultural University, Sylhet 3100, Bangladesh

A F M S Islam
Department of Crop Botany and Tea Technology, Sylhet Agricultural University, Sylhet 3100, Bangladesh

Abstract/ Executive Summary:

Pot experiments were conducted at the net house of Department of Soil Science, Sylhet Agricultural University campus, Sylhet during the period from November 2015 to May 2016 and November 2016 to May 2017 to find out the effect of fertilizer on the growth, yield and yield contributing characters of fine boro rice varieties. Two varieties (BRRI dhan50 and BRRI dhan63) and two fertilizer treatments (NPKSZn recommendation and 50% of NPKSZn recommendation) were included in the experiment. The recommended fertilizer dose was NPKSZn @ 138-22.4-63.5-13.5-1.3 kg ha^-1. The experiment was laid out in a two factors Completely Randomized Design (CRD) with three replications and continued for consecutive two years. During 2015-16 the tallest plant (70.65 cm) and the higher no. of tillers hill^-¹ (13.73) was produced by BRRI dhan63 but during 2016-17 the higher no. of tillers hill^-1 (15.54) was produced by BRRI dhan63. The tallest plant (70.86 cm and 57.67 cm) and the highest no. of tillers hill^-¹ (14.11 and 20.06) was produced due to application of NPKSZn as per recommendation. The higher grain yield of 39.20 g pot^–1 and 78.21 g pot^–1 and straw yield of 66.86 g pot–1 and 95.18 g pot^–¹ were recorded from the variety BRRI dhan63. The grain yield was significantly affected due to fertilizer application. The lower grain yield of 41.58 g pot^-¹ and 56.68 g pot^-¹ were observed in the NPKSZn fertilizers as 50% of recommendation. The higher grain yield 48.02 g pot^-¹ and 86.00 g pot^-¹ were recorded in NPKSZn due to recommended fertilizer application. The highest grain yield was also obtained due to effect of in the interaction of BRRI dhan63 with application of recommended NPKSZn fertilizers.

Keywords: Fertilizer, Growth, Yield, Fine rice.

Location: Sylhet Agricultural University campus, Sylhet

Start Date: 00-00-2015

End Date: 00-00-2017

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Rice

Objectives:

In the present study, the effect of fertilizers on the growth and yield of modern boro fine rice varieties in pot culture were evaluated.

Methodology:

The pot experiments were conducted at the research net house of Sylhet Agricultural University campus, Sylhet during boro seasons of 2015-16 and 2016-17. Two factors experiment include variety (BRRI dhan50 and BRRI dhan63) and fertilizer package (F1=N138 P22.4 K63.5 S13.5 Zn1.3 and F2=N69 P11.2 K31.7 S6.7 Zn0.65) in the pot culture.The pots were made of cement having three holes at the bottom. Before filling with soil, these holes were covered with jeans cloth to prevent excess leaching of water and loss of soil due to washing away. Each pot was filled with 45 kg field soil. Standing water was maintained 2-3 cm in the pot throughout the growing period. The pH of the initial soil was around 5.27, soil organic carbon 0.90%, soil organic matter 1.55%, available P 6.5 ppm, available S 17.67 ppm, available Zn 0.137 ppm and exchangeable K was 0.14 meq 100g-1soil. Soil texture, pH, organic matter, available P, S, Zn and exchangeable K, were determined following standard methods (Black, 1965; Jackson, 1962; Walkley and Black, 1935; Olsen, et al.,1954 and Page, et al.,1982). Plant height (cm) and number of tillers hill^-1 were recorded for growth parameters. Data were recorded with 15 days interval starting from 15 days of transplanting up to 75 DAT and at harvest. Data on yield and yield contributing characters were collected after harvest. The plant heights were measured and tillers were counted from all hills of each pot. All four hills were collected from each pot to record the agronomic characters. The grain and straw yields were recorded from each pot. The experiments were conducted following completely randomized design and mean separation of data was done by DMRT (Gomez and Gomez,1984).

Source of Information: J. Sylhet Agril. Univ. 4(2):207-212, 2017 ISSN: 2308-1597

Article Link (Online Journal): www.jsau.com.bd

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

The result of the experiment revealed that the highest grain yield of 49.50 g pot^–¹ in 2015-16 and 90.46 g pot^–¹ in 2016-17 were obtained by BRRI dhan63 due to application of recommended dose of NPKSZn.

Knowledge Management: Journal