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Evaluation of Organic Fertilizer on Cabbage Production at Mymensingh and Jamalpur, Bangladesh

Sadia Tasmin
Horticulture Division, Bangladesh Institute of Nuclear Agriculture (BINA), BAU Campus, Mymensingh-2202, Bangladesh.

Mahbubur Rahman Khan
Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), BAU Campus, Mymensingh-2202, Bangladesh.

Md. Mahbubul Alam Tarafder
Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), BAU Campus, Mymensingh-2202, Bangladesh.

Ahmed Khairul Hasan
Horticulture Division, Bangladesh Institute of Nuclear Agriculture (BINA), BAU Campus, Mymensingh-2202, Bangladesh

Md. Habibur Rahman
Soil Science Division, Bangladesh Institute of Nuclear Agriculture (BINA), BAU Campus, Mymensingh-2202, Bangladesh.

Abstract/ Executive Summary:

Organic fertilizer (OF) has positive effects on soil, especially soil fertility and productivity. Two experiments were conducted at the farmer’s field of Mymensingh and Jamalpur to observe the effect of organic fertilizer on cabbage production during rabi season 2018. There were seven fertilizer treatments viz: T₁: RCF (N₁₅₀ P₄₀ K₁₀₀ S16 Kg ha^-1), T₂: 85% RCF, T₃: 70% RCF, T₄: 85% RCF + 3 t ha^-1 OF, T₅: 85% RCF + 1 t ha^-1 OF, T₆: 70% RCF + 3 t ha^-1 OF and T₇: 70% RCF + 1 t ha^-1 OF. The experiments were laid out in an RCBD (Randomized Complete Block Design) with three replications. The average fresh yield at Mymensingh ranged from 34.5 to 60.0 t ha^-1 with the highest yield of 60.0 t ha^-1 from treatment T₄ (85% RCF + 3 t ha^-1 OF). At Jamalpur, the average yield ranged from 31.5 to 56.3 t ha^-1 and the highest yield of 56.3 t ha^-1 was recorded from treatment T₄ (85% RCF + 3 t ha^-1 OF). The lowest yield was found from treatment T₃ in both locations. The percent fresh yield increased over control (T₁), was 42.85 and 40.04 in Mymensingh and Jamalpur, respectively. The highest gross margin is Tk. 534507, which was obtained from treatment T₄ (85% RCF + 3 t ha^-1 organic fertilizer). The highest MBCR 3.05 (average of two locations) was obtained from the same treatment T₄ (85% RCF + 1 t ha^-1 organic fertilizer). The result indicated that applying organic fertilizer and 85% recommended dose of chemical fertilizer is more profitable than applying chemical fertilizers only.

Keywords: Organic fertilizer, Cabbage, Higher yield

Location: Mymensingh and Jamalpur.

Start Date: 00-00-2018

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Organic fertilizer, Cabbage

Objectives:

To evaluate the effect of organic fertilizer on cabbage production.

Methodology:

To determine the effect of organic fertilizers on cabbage production during rabi season 2018, field experiments were conducted at farmer’s fields of Mymensingh and Jamalpur. The experiments comprised seven treatments. With three replications, the experiments were laid out in RCBD (Randomized Complete Block Design). The unit plot size of the experiment was 5×4 m². The lands were prepared properly as per crop requirements before setting up the experiments. Organic fertilizers were applied before final land preparation. Applications of fertilizers were made as per treatments. One-third of urea and all TSP, MP, and Gypsum were applied during final land preparation and thoroughly incorporated into the soil. Urea was applied in two equal splits. Both of these installments were applied as broadcast and incorporated with soil. Intercultural operations were done whenever necessary and fresh cabbage was harvested at maturity. Economic analysis was done using standard procedure. The initial soils of the experimental fields were collected and analyzed following standard methods (pH, Organic matter, nitrogen, phosphorus, potassium, and sulphur). Soil pH was measured with a glass electrode pH meter, the soil-water ratio being 1:2.5 as described by Jackson. The organic carbon content of the soil was determined following the wet oxidation method. Total N content in soil was determined by the Kjeldahl method. Available P content was extracted from the soil with 0.5M NaHCO₃ solution at a pH of 8.5. The Exchangeable K content of the soil was determined by extraction with 1M NH₄OAc, pH 7.0 solution followed by measurement of extractable K by flame photometer. Available S content was determined by extracting soil sample with CaCl₂ (0.15%) solution as described by Page et al.. The S content in the extract was determined turbidimetrically and the turbid was measured by spectrophotometer at 420 nm wavelength. The analysis of variance for various crop characters and yield was done following the principle of F-statistics. Mean comparisons of the treatments were adjudged by Duncan's Multiple Range Test.

Source of Information: Asian Journal of Crop, Soil Science and Plant Nutrition - Vol. 05, Issue 01: 165-169, 2021

Article Link (Online Journal): https://doi.org/10.18801/ajcsp.050121.21

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

In both locations, treatment T₄ (85% recommended chemical fertilizer + 3 t ha^-1 organic fertilizer) has produced the highest yield. The highest marginal benefit-cost ratio was obtained from treatment T₄ as well and this treatment is found economically cost-effective. From the result, it might be concluded that treatment T₄ (85% recommended chemical fertilizer + 3 t ha^-1 organic fertilizer) is the best treatment for cabbage production. There is ample scope for increasing the yield of cabbage through the use of organic fertilizer.

Knowledge Management: Journal