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Effect of Inorganic and Organic Fertilizers on Soil Properties with Vegetative Growth and Yield Quality of Sweet Pepper (capsicum Annuum L.) in Bangladesh

Md. Monirul Islam
Department of Soil Science, Patuakhali Science and Technology University, Bangladesh

Mohammad Kabirul Islam
Department of Soil Science, Patuakhali Science and Technology University, Bangladesh

Ram Proshad
Department of Soil Science, Patuakhali Science and Technology University, Bangladesh

Md. Sazedul Islam
Department of Soil Science, Patuakhali Science and Technology University, Bangladesh

Md. Shozibul Islam
Forestry & Wood Technology Discipline, Life Science School, Khulna University, Khulna, Bangladesh

Tapos Kormoker
Department of Emergency Management, Patuakhali Science and Technology University, Bangladesh

K. M. M. Masum Billah
Department of Plant Pathology, Patuakhali Science and Technology University, Bangladesh

Abstract/ Executive Summary:

A field experiment was conducted on sweet pepper for yield and quality of fruits using different types of organic and inorganic fertilizers at the farm of Patuakhali Science and Technology University. Inorganic and organic fertilizers treatments were tested on California variety of sweet pepper. The fertilization treatments were T1, (Urea +TSP+ MOP): (260+120+124) kg/ha; T2, Cow dung: 9 t/ha; T3, Poultry manure: 7 t/ha; T4, (Urea + cow dung): (195kg +2.5 t/ha); T5,( Urea + poultry manure): (180 kg + 2t/ha); T6, (Urea + cow dung): (130kg + 4.5 t/ha); T7, (Urea + poultry manure): (140kg +3 t/ha);T8, Control: no manure and fertilizer. A randomized complete block design (RCBD) with three replicates was used to conduct this experiment. Physiochemical properties of soil were increasing after harvesting sweet pepper. Obtained results showed that urea with cow dung (130kg + 4 tons)/ha (T6) increased sweet pepper production. Combined application of urea with cow dung showed a significant increase in leaves number per plant (174), Leaf area (48.6cm2), Root/canopy (15.2%), Plant fresh weight (378.5g), No. of fruits/plant (16.6), Fruit length (9.9cm), Fruit diameter (5.8cm), Average green fruit weight (142.1g), Average dry fruit weight (84.6g), yield/replicate (38.5Kg), no. of branching (10.6). Urea with cow dung influenced the total yield per replicate and extended the period of pepper fruit production compared to other treatments.

Keywords: Sweet pepper, Vegetative growth, Yield quality, Bangladesh, Inorganic and organic fertilizer, Flowering

Location: Patuakhali Science and Technology University, Patuakhali, Bangladesh

Start Date:

End Date:

Program Area: Crop-Soil-Water Management

Commodity: Sweet Pepper

Objectives:

A field experiment was conducted involving organic manure (cow dung), poultry manure and inorganic fertilizers as sources of nutrients to find out the best combination of manures and fertilizers for obtaining the higher yield of sweet pepper.

Methodology:

The experimental site Present study was conducted in the farm of Patuakhali Science and Technology University, Patuakhali. The experiment was carried out during the year 2015/2016 season. The experimental field was located at 220 13/ and 23 04 N latitude and 890 55/ and 910 00/ E longitude with an elevation of 30 cm above sea level. Soils The soil of the experimental field belongs to the Barisal soil series of the Ganges tidal floodplain (Agro-ecological Zone AEZ-13). The general soil type of the experimental field is silt loam. Topsoil is silt clay in texture. Organic matter content is very low and soil pH varies from 6.87 to 7.06. The land is above flood level and well-drained. In order to determine the textural class and fertility status of the experimental area, the soil samples were collected randomly from each plot with the help of a soil auger before sowing from the experimental field. Primary samples were mixed to prepare and a composite soil sample from each replication was drawn to study physical and chemical properties of the experimental field. The data pertaining to various physical and chemical properties of the soil before planting and after harvesting of sweet pepper have been presented in Table 2. Climate The climate of the experimental area was tropical in nature. It is characterized by high temperature, high humidity and heavy rainfall during the month of April to September and a scanty rainfall associated with moderately low temperature during the rest of the year. The annual precipitation of the site was 2152mm and potential vapor -transpiration was 1297mm. the average maximum temperature was 26.34°C. The temperature during the cropping period was ranged between 11.24°C to 27.2°C. The humidity varied from 70.22% to 77.219%. Application of manure and chemical fertilizers Required amounts of nitrogen, phosphorus and potassium fertilizers were applied in the whole plots as basal dose according to the fertilizers Recommendation Guide (BARC, 1997). Half of nitrogen and whole of potassium were applied during final land preparation in the form of urea and murate of potash (MOP), respectively .the fertilizers were mixed thoroughly with the soil and rest nitrogen applied after 30 days of planting. Half of the cow dung, poultry manure were applied at the time of final land preparation. The remaining amount of cow dung, poultry manure, and the full amount of phosphorus was applied before one week of transplanting as per treatment. Nitrogen and potassium were applied in three equal installments 21, 35 and 50 days after transplanting (DAT) as ring method around the plants (Fertilizer Recommended Guide, 2012). Experimental design and statistical analysis The experiment was laid out in a Randomized Complete Block Design (RCBD) design. There were three replications and 7 doses of organic and inorganic fertilizers; the plot size was 2m x 1.5m = 3m2 and maintaining a spacing of 75cm x 50cm and the plots were separated from each other by 0.5m bunds. The blocks to block and plot to plot distances were 0.5m and 1.0m, respectively. Plant to plant and row to row spacing was also 50 and 75cm. thus each unit plot accommodated 9 plants. The collected data on various parameters under study were analyzed using the MSTAT statistical package program. The means for all the treatments were calculated and analyses of variance for all the characters were performed by F test. The Least Significant Difference (LSD) for each parameter was done comparison among the treatment means was evaluated by the Duncan Multiple Range Test (DMRT) AT 5% level of probability.

Source of Information: International Journal of Agronomy and Agricultural Research (IJAAR) Vol. 11, No. 5, p. 37-46, 2017 ISSN: 2223-7054 (Print) 2225-3610 (Online) http://www.innspub.net

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In the context of the above results it was found that integrated nutrient application (Urea: 130kg + cow dung: 4 tons)/ha increased plant growth; a number of leaves/plant, leaf area, root/canopy, no. of branching, plant fresh weight, no. of fruits/plant, fruit length, fruit diameter, average green fruit weight and yield/replicate. Inorganic fertilizers increased plant growth and organic matter accelerated the flowering stage. So integrated nutrient application in sweet pepper was most effective and efficient.

Knowledge Management: Journal