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Effect of Potassium on Growth and Yield of Tomato (lycopersicon Esculentum Mill.)

R Sultana
Post graduate student Dept of Horticulture, SAU Dhaka

S Dilruba
Post graduate student Dept of Horticulture, SAU Dhaka

N Parvin
Rice Farming Systems Division, BRRI, Gazipur

ABMJ Islam
Rice Farming Systems Division, BRRI, Gazipur

Abstract/ Executive Summary:

The experiment was conducted in the farm of Sher-e-Bangla Agricultural University, Dhaka-1207 during October 2006 to March 2007 to find out the optimum level of potassium (K) for maximum yield of tomato. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. The experiment consisted of four levels of potassium K₀: 0 kg K/ha, K₁: 124.5 kg K/ha, K₂: 132.8 kg K/ha and K₃: 141.1 kg K/ha. In case of potassium, K₃ produced the maximum fruits per plant (37.08) and highest yield (65.96 t/ha) and the lowest yield (43.83 t/ha) and minimum fruits per plant (26.19) was from K₀.

Keywords: Potassium, Growth, Yyield and tomato

Location: Farm of Sher-e-Bangla Agricultural University, Dhaka-1207

Start Date: 00-10-2006

End Date: 00-03-2007

Program Area: Crop-Soil-Water Management

Commodity: Tomato

Objectives:

The present study was aimed to find out the optimum level of potassium for the maximum yield.

Methodology:

The experiment was conducted at the experimental farm of Sher-e-Bangla Agricultural University, Sher-e-Bangla Nagar, Dhaka -1207 during October 2006 to March 2007. Soil of the study site was silty clay loam in texture representing the Agro-Ecological Zone of Madhupur Tract (AEZ-28) with PH 5.8-6.5, ECE-25.28.The experimental area is characterized by subtropical rainfall during the month of May to September and Scattered rainfall during the rest of the year. The experiment consisted of four levels of potassium K₀: 0 kg K/ha, K₁: 124.5 kg K/ha, K₂: 132.8 kg K/ha and K₃: 141.1 kg K/ha. The experiment was laid out in Randomized Complete Block Design (RCBD) with three replications. An area of 41.5 m x 13 m and the size of each plot was 3.2 m x 2 m. The tomato variety used in the experiments was "Ratan" and the seeds were collected from the Horticulture Research Centre, Bangladesh Agricultural Research Institute (BARI) at Joydebpur. Tomato seedlings were raised in five seedbeds of 3 m x 1 m size. All weeds and stubbles were removed and 5 kg well rotten cow dung was mixed with the soil. Ten gram of seeds was sown on each seedbed on 27 October 2006. After sowing, seeds were covered with light soil. Heptachlor 40 WP was applied @ 4 kg ha^-1, around each seedbed as precautionary measure against ants and worm. The land of the experimental field was ploughed with a power tiller. After ploughing and laddering, all the stubbles and uprooted weeds were removed and then the land was ready. Potassium was applied as per treatment and Urea and TSP was applied at the rate of 550 kg/ha and 450 kg/ha. The quantity of manure, cow dung was also determined as recommended at the rate of 10 t/ha.The entire amount of cow dung and TSP were applied as basal during land preparation. Urea and MP were used as top dressing in equal splits at 20, 30 and 40 days after transplanting. Healthy and uniform 30 days old seedlings were uprooted separately from the seed bed and were transplanted in the experimental plots in the afternoon of 1 December, 2006 maintaining a spacing of 50 cm x 40 cm between the rows and plants respectively. This allowed an accommodation of 32 plants in each plot. All Intercultural operations were done when necessary. Fruits were harvested at 3 days intervals during early ripe stage when they attained slightly red color. Harvesting was started from 26 February, 2007 and was continued up to 29 March 2007. Ten plants were selected randomly from each plot for data collection. The data were collected on Plant height, flower clusters per plant, flowers per plant, flowers per cluster, fruits per plant, fruits per cluster, weight of individual fruit, fruit length, fruit diameter, dry matter of leaves, dry matter of fruits, yield of fruits per plot (kg), yield of fruits per hectare (ton). The recorded data on various parameters were statistically analyzed using MSTAT statistical package programme and means were determined by Duncan`s Multiple Range Test (DMRT) according to Gomez and Gomez at 5% level of significance.

Source of Information: Eco-friendly Agril. J. 8(06): 77-80, 2015 (June); ISSN 1999-7957

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In case of potassium, K₃ produced the maximum fruits per plant (37.08) and highest yield (65.96 t/ha) and the lowest yield (43.83 t/ha) and minimum fruits per plant (26.19) was from K₀.

Knowledge Management: Journal