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The Effect of Phosphatic Fertilizer on the Yield of Tomato

S. Razia
Division of Soil Science, Bangladesh Agricultural Research Institute, Joydebpur, Dhaka.

M. S. Islam
Division of Soil Science, Bangladesh Agricultural Research Institute, Joydebpur, Dhaka.

Abstract/ Executive Summary:

A fertilizer trial was conducted at the Central Research Farm of Bangladesh Agricultural Research institute, Joydebpur during Rabi season of 1979-80 to find out the effect of phosphorus on the yield of tomato. Phosphorus was applied at the rate of 0, 30, 60, 90, 120 and 150 kg P₂O₅/ha from TSP along with basal doses of 100 kg N/ha from urea, 100 kg K₂O/ha from MP, 300kg gypsum/ha and 1000kg compost/ha. Phosphorus application significantly and progressively increased the yield with increasing rates of application upto 90kg P₂O₅/ha.

Keywords: Phosphorus, Fertilizer, Yield, Tomato

Location: Central Station, Bangladesh Agricultural Research Institute, Joydebpur

Start Date: 00-00-1979

End Date: 00-00-1980

Program Area: Crop-Soil-Water Management

Commodity: Tomato

Objectives:

To study the effect of different level of phosphorus on the yields of tomato

Methodology:

The experiment was conducted at the Central Station, Bangladesh Agricultural Research Institute, Joydebpur, during Rabi season of 1979-80 to find out the yield response of tomato to added phosphorus under optimum cultural practices. The initial soil samples, collected from a depth of 0.20cm, were analyzed and the properties are described. The experiment comprised of the variety Sunmarizano with six phosphorus levels (0, 30, 60, 90, 120 and 150kg P₂O₅/ha from TSP) along with basal doses of 100 kg N/ha from urea, 100 kg K₂O/ha from MP, 300 kg gypasum/ha and 1000 kg compost/ha was laid out in a randomized complete block design with three replications. Half of the compost and all gypsum were applied at the time of final preparation of land. The second half of compost and entire dose of P were applied to the holes two days before transplanting, and mixed well with the soil. Nitrogen and potash were applied in two installments at 20 and 60 days after 120 21.05 1436 transplanting as top dressing. The unit plot size was 5m X 3m. Healthy seedlings of 25 days old and of equal size were transplanted in the first week of December 1980 with a row to row and plant plant distances of 75 and 60cm respectively and thus accommodating twenty eight plants in each plot. Intercultural operations were done as and when necessary. The first harvesting of the ripen fruits was done on March 15, 1980 and there after at an interval of one week, subsequent harvestings were made until all the leaves and plants were dried out. The harvesting was completed on May 7, 1980 the yield data were recorded and analyzed statistically.

Source of Information: Bangladesh Horticulture,8(2):29-31;1980

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The application of phosphorus progressively and significantly increased the yield of tomato, upto 90kg P₂O₅/ha. Higher application of phosphorus could not produce any yield increase over 90kg P₂O₅/ha but when compared with the control, the percent increase stood to 26.4 and 14.9 at 120 and 150 kg P₂O₅/ha application respectively. In other words, higher application produced toxic effects and so reduced the yield.

Knowledge Management: Journal