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Nitrogen Fertilizer Effect on Tillering, Dry Matter Production and Yield of Traditional Varieties of Rice

M. R. Amin
Scientific Officer
Farm Division, Bangladesh Agricultural Research Institute (BARI), Gazipur-1701

A. Hamid
Professor
Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU), Salna, Gazipur-1706

R. U. Choudhury
Senior Scientific Officer
Plant Genetic Resources Centre, BARI, Gazipur-1701

S. M. Raquibullah
Principal Scientific Officer
Planning and Evaluation Division, BARI, Gazipur-1701

M. Asaduzzaman
Scientific Officer
Regional Agricultural Research Station, BARI, Jamalpur, Bangladesh

Abstract/ Executive Summary:

was compared with that of a modern variety in a field experiment. The experiment was conducted at Bangabandhu Sheikh Mujibur Rahman Agricultural University farm Salna, Gazipur during Aman season of 1996 to determine the tillering pattern, total dry matter production and yield performance of three local and one modern cultivar as influenced by nitrogen fertilizer. Application of 60 kg N ha^-1 produced more TDM and lesser ineffective tillers. Traditional varieties accumulated higher amount of vegetative dry matter than the modern variety. Cultivar KK-4, a high yielding variety outyielded (4772 kgha^-1) the indigenous varieties Jharapajam (4150 kg ha^-1), Lalmota (3628 kg ha^-1) and Bansful Chikon (3575 kgha^-1). Application of 30 kg N ha^-1 appropriate for low responsive traditional varieties produced the highest yield (4451 kg ha^-1).

Keywords: Traditional rice varieties, Nitrogen fertilizer, Tillering, Dry matter and yield

Location: Experimental Farm of Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur

Start Date: 00-00-1996

End Date: 00-00-1996

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To determine the tillering pattern, total dry matter production and yield performance of three local and one modern cultivar as influenced by nitrogen fertilizer.

Methodology:

A field experiment was conducted in Aman season of 1996 at the Bangabandhu Sheikh Mujibur Rahman Agricultural University, Salna, Gazipur with three traditional cultivars (viz. Jharapajam, Lalmota, Bansful Chikon) and a modern cultivar (viz. KK-4) grown as check each at four levels of nitrogen (0, 30, 60 and 90 kg ha^-1). The traditional varieties were originated in south and southeastern districts of Bangladesh and the modern variety was collected from Khoenkhen, Thailand. The three indigenous local varieties represent medium to bold grain rice while KK-4 is exotic long and slender grained rice. The treatments were arranged in a split-plot design and replicated three times. Unit plot was 10m². Thirty days old seedlings were planted on August 20, 1996 maintaining two seedlings in each hill. Seedlings were planted in rows 25 cm apart and the distance between the hills in a row was 10 cm. A blanket rate fertilizer at 40 kg P₂O₅, 20 kg K₂O, 20 kg S and 8 kg Zn ha^-1 was applied uniformly in all the plots and thoroughly incorporated into the soil at the time of final land preparation. Nitrogen was applied as per treatments in the form of urea in three splits- once immediately after the establishment of seedlings, the next was at maximum tillering stage and final top dressing was done at panicle initiation stage. Intercultural operations and plant protection measures were taken as and when necessary. For the determination of growth and other characters, plants were sampled from the plots at 15 days interval. At each sampling, 10 hills per plot were pulled out from the second row avoiding the border effect. The number of tillers in each 10 hills was counted and means of each hill were recorded. Plant parts were separated as green leaf, dead leaf, leaf sheath, stem and panicle and oven dried at 80⁰C for 48 hours and total dry weight recorded. Grain yield of rice was determined harvesting a sample area of 5m2 from the middle of each plot.

Source of Information: Int. J. Sustain. Crop Prod. 1(1):17-20, 2006

Article Link (Online Journal):

Funding Source:

1. Government

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Application of 30 kg N ha^-1 appropriate for low responsive traditional varieties produced the highest yield (4451 kg ha^-1).

Knowledge Management: Journal