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Application of Partial Budget Tecnique of Fertilizer Response on Fallow -t. Aus -t. Aman Cropping Pattern in Southern Region of Bangladesh

M. A. Awal
RARS, BARI Rahrnatpur, Barisal

M. S. I. Khan
RARS, BARI Rahrnatpur, Barisal

B. L. Nag
RARS, BARI Rahrnatpur, Barisal

M A. Kader4
Soil Science Department, BAU, Mymensingh

M. S. Alam
RARS. BARI Rahrnatpur, Barisal

Abstract/ Executive Summary:

An experiment was carried out to see the response of different fertilizer combination in T.aus and T.aman crop under AI] 13 during 2000-200 I. The experiment was laid out in a randornised complete block design with six levels of fertilizer combinations viz. estimated mineral fertilizer dose for moderate yield goal (T1). estimated mineral fertilizer dose for HYG (T₂); IPNS basis fertilizer management with cowdung for HYG (T₃); recommended fertilizer based on FRG/97 (T₄); farmers pracrice) and absolute control(T_o). The highest grain yield of T.Aus andT.aman (3.25 & 5 t/ha. respectively) was obtained from T₃ treatment and the lowest (2.14 &. 3.53 t/ha. respectively) from control (To). Economic analysis of T. aus showed that farmers got highest additional return (153%) by using 70. 6 and I kg/ha N. P and Zn per hectare. respectively If the: farmers applied 80. 16. () and I kg/ha N. P. K and Zn, they can get only 60) percent additional return. In case of T. arnan. it was also observed that marginal rate of return was the highest (868%) at T₃ treatment which was followed by T₄ (320) .Among the treatments, IPNS basis fertilizer management with cowdung was economically viable.

Keywords: Partial budget, Fertilizer response, Cropping pattern. Economical viability

Location: Farmer's field of Jhalokati

Start Date: 00-00-2000

End Date: 00-00-2001

Program Area: Socio-economic and Policy

Commodity: Rice

Objectives:

To find out the economically viable fertilizer doses for T. Aus (Kazla) and T. Amari (BR 23) which may be accepted by the farmers.

Methodology:

The experiment was conducted at the farmer's field of Jhalokati during 2000-200 I. Characteristically. the soil was medium high land with silt loam texture having pH 6.1-6.8. organic matter 3.183%. total N 0.12%. available phosphorus 7.6 ug/g, available S 50 ug/g. exchangeable K 0.386 ug/g and available Zn 0.93 µg/g. So, the soil contains low N and P, very high K and S and moderate quantity of Zinc. Local improved aus variety 'Kazla' and high yielding variety 'BR 23' were transplanted in aus and aman season, respectively. The experiment was designed with 6 treatments comprised various levels of chemical fertilizer in a Randomized Complete Block design with 6 dispersed replications. Unit plot size was 5mx4m. The treatments were as follows: T₁ = Estimated mineral fertilizer dose for moderate yield goal, T₂ = Estimated mineral fertilizer dose for high yield goal. T₃ = IPNS basis fertilizer recommendation for high yield goal, T₄ = Recommended fertilizer based on FRG'97. T₅= Farmer's practice, T₆ = Absolute control Initial soil sample were collected from the experimental plot before establishment of the first crop and analyzed by following standard procedure (Page et 0/.1989). The fertilizers were used in the form Urea, TSP, MP and Zinc sulphate. Half of urea and all fertilizers were applied as basal. Rest of the urea was applied in 2 equal splits, i.e. at maximum tillering stage and at panicle initiation stage. Necessary intercultural operations and pest management practices were done as and when necessary. The price of N, P, K and Zn were calculated by converting them into urea. TSP, MP and zinc sulphate. So, the price of per kg N, P, K and Zn were 13,61,18 and 37 Tk. The price of T. aus and T. aman grain and straw were estimated as 6, 7 and 0.5 Tk.lkg. The economic analysis was carried out to estimate the economically viable doses of fertilizer by using partial budgeting techniques.

Source of Information: Baugladesh J. Environ. Sci. Vol. 9, 57-61, 2003 ; ISSN 1561-9206

Article Link (Online Journal):

Funding Source:

Total Budget (Tk.) :

Achievement/Findings:

The highest grain yield of T.Aus andT.aman (3.25 & 5 t/ha. respectively) was obtained from T₃ treatment and the lowest (2.14 &. 3.53 t/ha. respectively) from control (T_o). Economic analysis of T. aus showed that farmer's got highest additional return (153%) by using 70. 6 and I kg/ha N. P and Zn per hectare. respectively If the farmers applied 8O. 16. and I kg/ha N. P. K and Zn, they can get only 60%percent additional return. In case of T. arnan, it was also observed that marginal rate of return was the highest (868%) at T₃ treatment which was followed by T₄ (320) . Among the treatments, IPNS basis fertilizer management with cowdung was economically viable.

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