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Nutrients and Leaf Plucking Effect on Growth and Yield of Cabbage

Anannya Parvin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

Tahmina Mostarin
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

Khaleda Khatun
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

Md. Ehsanul Haq
Department of Genetics and Plant Breeding, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

Faiza Akhter
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

Shila Akhter
Department of Horticulture, Sher-e-Bangla Agricultural University, Dhaka, Bangladesh.

Montasir Ahmed
Plant Pathology Division, Bangladesh Rice Research Institute, Gazipur, Bangladesh.

Abstract/ Executive Summary:

The experiment was carried out at the Horticulture Farm of Sher-e-Bangla Agricultural University, Dhaka from September 2016 to December 2016 to find out the growth, yield, and economic benefit of cabbage as influenced by nutrients and leaf plucking. The research comprises of two factors: Factor A: NPK nutrients (four levels) as- N₀ = control, N₁ = N₁₂₀P₃₀ K₁₀₀kg ha^-1, N₂ = N₁₄₀P ₄₀ K₁₂₀kg ha^-1, N₃ = N₁₆₀P₅₀ K₁₄₀kg ha^-1and Factor B: leaf plucking (three levels) as- L₀ = No leaf plucked, L₁ = 4-leaves plucked and L₂ = 6-leaves plucked. The experiment was set up in randomized complete block design (RCBD) with three replications. In the case of nutrients, the highest gross yield (90.53 t ha^-1) and marketable yield (68.95 t ha^-1) were obtained from N₃, while the lowest gross yield (60.26 t ha^-1) and marketable yield (44.24 t ha^-1) from N₀. For dissimilar levels of leaf plucking, the highest gross yield (80.64 t ha^-1) and marketable yield (62.08 t ha^-1) were recorded from L₁, whereas the lowest gross yield (74.13 t ha^-1) and marketable yield (56.96 t ha^-1) from L₀. Due to the combined effect, the highest gross yield (94.38 t ha^-1) and marketable yield (71.91 t ha^-1) were recorded from N₃L₁, whereas the lowest gross yield (58.75 t ha^-1) and marketable yield (41.15 t ha^-1) from N₀L₀. From the economic point of view, the highest benefit-cost ratio (BCR) was2.35 noted from N₃L₁ and the lowest (1.63) from N₀L₀. It is evident that the N₃L₁ gave the best performance for the growth, yield, and economic benefit of cabbage. So, N₁₄₀ P ₅₀ K₁₂₀kg ha^-1 with 4- leaves plucked may be considered as an optimum dose for cabbage production.

Keywords: Benefit Cost Ratio (BCR); Cabbage; Leaf plucking; NPK nutrients; Yield.

Location: Horticulture Research Farm of Sher-e-Bangla Agricultural University (SAU), Dhaka, Bangladesh.

Start Date: 00-09-2016

End Date: 00-12-2016

Program Area: Crop-Soil-Water Management

Commodity: Cabbage

Objectives:

To evaluate the performance of nutrients and leaf plucking on growth, yield, and economic return of cabbage.

Methodology:

The experiment was conducted at the Horticulture Research Farm of Sher-e-Bangla Agricultural University (SAU), Dhaka, Bangladesh from September 2016 to December 2016. The experimental site is situated at an elevation of 8 meters above sea level in the Agro-ecological zone of "Madhupur Tract" (AEZ-28). The soil was sandy loam and medium high land in texture having pH 5.46- 5.62. The research was consisted of two factors: Factor A: NPK nutrients (four levels) as- N₀ = control, N₁ = N₁₂₀ P₃₀ K₁₀₀ kg ha^-1, N₂ = N₁₄₀ P₄₀K₁₂₀ kg ha^-1, N₃ = N₁₆₀ P₅₀ K₁₄₀ kg ha^-1 and Factor B: leaf plucking (three levels) as- L₀ = No leaf plucked, L₁ = 4-leaves plucked and L₂ = 6-leaves plucked. The two factors experiment was laid out following Randomized Complete Block Design (RCBD) with three replications. The experiment was divided into three equal blocks where each block was divided into 12 plots. Then 12 treatment combinations were allotted randomly in each block. The size of each unit plot was 1.8 m × 1.6 m. The distance maintained between two blocks and two plots were 0.5 m and 0.5 m, respectively. The seedlings were transplanted with maintaining distance row to row 60 cm and plant to plant 40 cm. About 10 t ha^-1 well-decomposed cow dung was applied only control (as No treatment) plot and incorporated adequately to the soil during final land preparation whereas other plots were applied with inorganic fertilizer as per treatment. Doses of inorganic fertilizers (Urea, Triple superphosphate, and Muriate of potash) were applied in the experimental plot according to the treatments. The whole amount of TSP and half amount of MoP were also applied as basal dose before seedlings transplanting in the main field. 1st top dressing of urea was applied when seedlings were established in the main field about 10days after seedling transplanting. 2nd top dressing of urea and the rest amount of MoP was applied about 25days after 1st top dressing. Then rest amount of urea was applied as 3^rdinstallment about 40 days after transplanting. Each top dressing was followed by manual irrigation. Leaf plucking was stunted only when the head grew 12-15cm in diameter. Initially, two bottom leaves were plucked normally which was followed by further leaf plucking as per treatment. Older and unfolded leaves were plucked at 30DAT and 40DAT as per treatment of leaf plucking. The plucked leaves may be useful either as vegetables or fodder as increased total biomass production. The cost of production was analyzed in order to find out the most economic treatment in respect of NPK nutrients as chemical fertilizers and labour requirements for leaf plucking. All input costs, cost of land, and running capital were considered for computing the cost of production. The cost and return analysis was done in detail according to the procedure of Alam et al.. The benefit-cost ratio (BCR) was calculated as follows: BCR = Gross return per hectare (Tk.) ÷ Cost of production per hectare (Tk.) The data obtained for different parameters were statistically analyzed by the MSTAT-C computer package. The significance of the difference among the treatment combinations means was compared by LSD test at a 5% level of probability.

Source of Information: Asian Journal of Agricultural and Horticultural Research 2(4): 1-11, 2018

Article Link (Online Journal): DOI: 10.9734/AJAHR/2018/45484

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Both crop yield and economic benefit of the crop are important for crop production. Leaf plucking represents a higher yield in cabbage plants than without leaf plucking According to the results of the present experiment, it may be concluded that efficient production of cabbage is increased by the application of nutrients and leaf plucking. Thus, the combined application of nutrients and leaf plucking may be helpful for higher and better qualitative cabbage production in considering crop productivity and the economic return of cabbage. On the basis of the benefit-cost ratio, it may be suggested that N₁₆₀ P₅₀ K₁₄₀kg ha^-1 nutrients with 4-leaves plucked gave maximum and profitable yield of the cabbage head.

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