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Effects of Compost and Nitrogen on Growth and Yield of Tomato

A .R. M. SOLAI MAN
Department of Soil Science, Bangabandhu Sheikh Mujihur Rahman Agricultural Universi1y, Cazipur

M.G. Rabbani
Department of Soil Science, Bangabandhu Sheikh Mujihur Rahman Agricultural Universi1y, Cazipur

Abstract/ Executive Summary:

A field experiment was carried out to assess the effects of inorganic and organic fertilizers on vegetative, flowering and fruiting characteristics as well as yield attributes and yield of tomato var. Ratan. The plot s were treated with five levels of compost (5, 10, 1 5, 20 and 25 t/ha) and four levels of urea ( 100. 1 50, 200 and 250 kg/ha). There were three replications for each treatment. The highest plant height, the maximum number of cluster. fruits/plant and as well as the highest fruit size and fruit yield/plant. fruit yield/ha were obtained from the treatments receiving 15 t compost + l 00 kg N/ha. The effects of 5 t compost along with 200 kg N/ha , 10 t compost along with 150 kg N/ha and 250 kg N/ha were also comparable to the effect of 15 t compost + I 00 kg N /ha . It was further observed that the combination of 15 t compost + l 00 kg N/ha appeared to be the economically viable treatment which offered maximum benefit cost ratio (4.49) for tomato production in the Shallow Red- Brown Terrace Soil (AEZ-28) of Bangladesh.

Keywords: Compost, Nitrogen , Growth, Yield, Tomato

Location: Gazipur,

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity:

Objectives:

To evaluate the effects of compost as manure with or without urea N on the productivity and profitability of tomato.

Methodology:

A field experiment was conducted at the Bangabandhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) Farm, Gazipur, Bangladesh, during the Rabi (Winter) season. The soil was Shallow Red-Brown Terrace Soil (A EZ-28) and was classified as Inceptisols having pH 6.4, bulk density 1 .32 g/cc total N 0.11 %, organic carbon 1.146 %, C: N ratio 10.42, available P 25.58 µg/g soil , exchangeable K 0.36 meq/100g soil, available S 44.32 µg/g soil, Ca 7.45 meq/100g soil, Mg 2.21 meq/100g soil , total Zn 3.25 µg/g soil and CEC 1 1 .91 cmol/kg. The experiment was arranged in a randomized complete block design with nine treatments replicated thrice. Data on plant height, dry weight of shoot, number of clusters per plant, number of flowers per plant, number of fruits per plant, fruit setting rate (%), fruit size (length x breath) and fruit yield per plant were recorded from ten randomly selected plants from each plot. Plant height was recorded at pre-flowering (40 days after transplanting), 50% flowering (55 days after transplanting) and final harvesting ( 120 days after transplanting) stage. Dry weight of shoot was recorded at final harvesting stage of the crop. Total yield/ha was calculated from the yield recorded in each plot. Fruit setting rate (FSR) was calculated The cost of labour, land preparation, seedling transplanting, compost and urea fertilizer were considered as the total variable cost of the experiment and fruit yield/ha was considered as experimental produce. The collected data were analyzed statistically. Means were separated using DMRT.

Source of Information: Asiat. Soc. Bangladesh, Sci., 33(2) : 175- 183, December-2007

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The results suggested that compost at the rate of 15 t/ha in combination with nitrogen at the rate of 100 kg/ha appeared to be the best combination of fertilizer, which gave maximum benefit to the cultivator. The effects of 5 t compost along with 200 kg N/ha, 10 t compost along with 150 kg N/ha and 25O kg N/ha was also comparable to the effect of 15 t compost along with 100 kg N/ha.

Knowledge Management: Journal