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Growth and Yield of Banana Cultivars in Relation to Nitrogen Fertilization in Brown Hill Soils

Nirmal Kumar Halder
Soil Science Division, Bangladesh Agricultura Research Institure, Gazipur, Bangladesh.

A.H.M. Fazlul Kabir
Planning and Evaluation Division, Bangladesh Agricultural Research Institure, Gazipur, Bangladesh.

Jalal Uddin Sarker
Soil Science Division, Bangladesh Agricultura Research Institure, Gazipur, Bangladesh.

Deeder Sultana
Planning and Evaluation Division, Bangladesh Agricultural Research Institure, Gazipur, Bangladesh.

Zahurul Islam
Soil Science Division, Bangladesh Agricultura Research Institure, Gazipur, Bangladesh.

Abstract/ Executive Summary:

Field studies were conducted in brown hill soils of Hill Tracts Agricultural Research Station of Ramgarh, Khagrachari hill district to find out optimum dose of nitrogen and suitable cultivar for maximizing yield of banana in hilly region. There were four levels of nitrogen (0, 100, 200 and 300 g N Plant^-1) and three banana cultivars (Amritsagar, Kabri and Champa) in the study. The growth and yield of banana were significantly increased with the increase of N levels. The maximum number of fingers, number of hands bunch^-1 and highest weight of bunch and total fruit yield were recorded in 300 g N plant^-1 in both the years of 1996-97 and 1997-98 respectively. While untreated plants (0g N Plant^-1) failed to produce optimum fruit yield. In interaction effect, Champa exhibited best performance when nitrogen was applied @ 300 g N Plant^-1 followed by Kabri (Bangla) and Amritsagar in both the years. It was revealed from the correlation study that nitrogen had a strong positive correlation with the yield contributing characters of banana except days to flowering and to harvest.

Keywords: Banana, Nitrogen, Brown hill soils, Cultivars

Location: Hill tracts Agricultural Research Station, Ramgarh, Khagrachari hill distric

Start Date: 00-00-1996

End Date: 00-00-1998

Program Area: Crop-Soil-Water Management

Commodity: Banana

Objectives:

To find out the optimum dose of nitrogen for evaluating banana cultivers in the hilly region.

Methodology:

The field studies were carried out at Hill tracts Agricultural Research Station, Ramgarh, Khagrachari hill district in two consecutive years of 1996-97 and 1997-98 cropping seasons. The experimental soils were sandy clay loam having pH 4.2-4.5. The physical and chemical properties of the experimental soils were given below. The experiment was laid out in randomized complete block design with three replications. The unit plot size was 4 m x 4 m with a spacing of 2.5 m x 2.5 m maintained by planting sword suckers of healthy plants. There were twelve treatments combination comprising four levels of nitrogen (0, 100, 200 and 300 g N plant^-1) and 3 banana cultivars (Amritsagar, Kabri and Champa) were taken in the study. The blanket dose of phosphorus and potassium along with cowdung @ 200 g P, 300 g K and 10 kg CD Plant^-1 were applied into the pits before ten days of planting. Nitrogen was applied in three equal installments. First split of nitrogen was applied to the plants just at the beginning of the monsoon shower. Second and last installment was applied at vegetative and flowering/booting stages respectively by ring placement method. The suckers were planted on late October in both the years following residual moisture. Necessary intercultural operations were performed in time. Data on different yield and yield contributing Characters were recorded from randomly selected plants in each treatment. The collected data were computed for statistical analysis. The differences between treatment means were compared by least significant difference (LSD) at 5% level of significance.

Source of Information: Asian Journal of Plant Sciences, 2(13): 963-967,2003; ISSN: 1682- 3974

Article Link (Online Journal): http://scialert.net/fulltext/?doi=ajps.2003.963.967&org=11

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Early flowering and fruit maturity responded to nitrogen and potassium were also stated. Nitrogen had a tremendous effect on yield and yield attributes of banana. Number of hands, number of fingers, bunch weight and fruit yield were significantly influenced by N application. Maximum bunch weight (10.55 and 10.60 kg) and highest fruit yields (32.0 and 33.13 t ha^-1) were recorded in 300 g N plant^-1 in 1996-97 and 1997-98 respectively. Where as control treatment (0 g N) failed to perform optimum yield (10.33 and 11.03 t ha^-1) in both the years. In two years study, it was summarized that 300 g N per plant may be suggested in boosting and popularizing banana cultivation specially for Champa cv. in brown hill soils of Chittagong Hill Tracts region.

Knowledge Management: Journal