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Effect of Number of Seedlings Hill-1 and Zinc Fertilizer on the Performance of Transplant Aman (brri Dhan39) Rice (oryza Sativa L.)

Salam MA
Dept. Agron, Bangladesh Agricultural University, Mymensingh.

Hisashi Kato-Noguchi
Dept. Applied Biological Science, Faculty of Agriculture, Kagawa University, Miki, Kagawa 761-0795, Japan.

Bari MA
Sustainable Solution for the Delivery of Safe Drinking Water Project, DACOH, Sunamganj.

Abstract/ Executive Summary:

An experiment was conducted at the Agronomy Field Laboratory of Bangladesh Agricultural University, Mymensingh during transplant aman season (July to October 2012) to evaluate the effect of number of seedlings hill^-1 and level of zinc on the yield and yield contributing characters of BRRI dhan39. The experiment consisted of two factors namely, (i) number of seedlings hill^-1 i.e., 1, 2 and 3 seedlings hill^-1 and (ii) level of zinc i.e., 0, 5 and 10 kg ZnSO₄ ha^-1. The experiment was laid out in a randomized complete block design with three replications. Results of the study revealed that plant height, total tillers hill ^-1, effective tillers hill^-1, length of panicle, grains panicle^-1 and sterile spikelets panicle^-1 were significantly affected by number of seedlings hill^-1. Level of Zn had significant effect on plant height, total tillers hill^-1 and sterile spikelets panicle^-1. Other yield and yield contributing characters including grain yield were remained unaffected by level of Zn. Plant height, total tillers hill^-1, effective tillers hill^-1 , grains panicle^-1 and sterile spikelets panicle^-1 were significantly affected by the interaction of num ber of seedlings hill^-1 and level of Zn fertilizer although grain yield was not influenced. From the results of the study it may be concluded that BRRI dhan39 rice could be grown in AEZ-9 (Old Brahmaputra Floodplain) with one seedlings or two seedlings hill^-1 without Zn fertilizer. Moreover, BRRI dhan39 rice could be accommodated in transplant aman rice - mustard- boro rice cropping pattern since this rice can be harvested in mid or late October.

Keywords: BRRI dhan39, Cropping pattern, Number of seedlings, Zinc fertilizer

Location: Bangladesh Agricultural University, Mymensingh

Start Date: 00-07-2012

End Date: 00-10-2012

Program Area: Crop-Soil-Water Management

Commodity: Rice

Objectives:

To find out the optimum number of seedlings hill^-1 and application of zinc for the production of BRRI dhan39 rice grown in aman season.

Methodology:

The study was carried out at Mymensingh during the period from July to October 2012 with a view to find out the effect of number of seedlings hill^-1 and zinc fertilization on the yield of transplant aman rice namely BRRI dhan39. The treatments consisted of hree levels of number of seedlings hill^-1 viz., one, two and three seedlings hill^-1 and three levels of ZnSO₄ viz., 0, 5 and 10 kg ZnSO₄ ha^-1. The experimental site belongs to the Old Brahmaputra Floodplain (AEZ-9). The experimental field was medium high. The experiment was laid out in a randomized complete block design with three replications. Rice variety BRRI dhan39 was used as planting material. Sprouted seeds were sown on well- prepared nursery bed on 30 June 2012. Weeds were removed and irrigation was given in the seedling nursery as and when necessary. In the experiment, each unit plot was uniformly fertilized with urea, TSP, MP, and gypsum at the rate of 130, 55 , 85 and 60 kg ha^-1 as source of N, P₂O₅ , K₂O and S, respectively, as per BRRI recommendation. Fifteen-day- old seedlings were uprooted on 15 July 2012 and transplanted in the unit plot as per experimental treatment. The zinc sulphate as a source of zinc was also applied as per experimental treatment. Except urea all the fertilizers were applied as basal dose. Urea was top dressed in two equal splits at 20 and 40 days after transplanting. Weeding, watering and other intercultural operations were done as and when necessary. No remarkable disease and insect infestation were observed in the experimental plots and hence, no plant protection measure was taken. The crop was harvested at full maturity on 24 October 2012. Maturity of crops was determined when some 90% of the grains became golden yellow in colour. The grains were cleaned and sun dried to moisture content 14%. Straws were also sun dried properly and brought to moisture content 14%. Finally grain and straw yields plot^-1 were recorded and converted to t ha^-1. Data were collected on plant height, total tillers hill^-1, effective tillers hill^-1, length of panicle, grains panicle^-1, 1000-grain weight, grain yield, straw yield and harvest index. The collected data were compiled and tabulated in proper form and were subjected to statistical analysis. Analysis of variance (ANOVA) was done following the computer package MSTAT- C. The mean differences were adjudged by Duncan’s Multiple New Range Test.

Source of Information: BJPST: 11(1):111-114 [January, 2013],ISSN: 2305-1809

Article Link (Online Journal): http://bjpst.net/wp-content/uploads/2016/02/Salam-111-114.pdf

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Based on the results of the study it may be concluded that BRRI dhan39 rice could be grown in AEZ 9 (Old Brahmaputra Floodplain) with one seedlings or two seedlings hill^-1 without Zn fertilizer. Moreover, BRRI dhan39 rice could be accommodated in T. Aman - Mustard- Boro rice cropping pattern since this rice can be harvested in mid or late October.

Knowledge Management: Journal