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Fertilizer Management for Grasspea Relay Cropping System with T.aman Rice in High Ganges Floodplain Soil (2017--2018)

M. A. SALAM
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. A. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. HOSSAIN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

S. M. ZAMAN
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

M. O. ALI
Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Abstract/ Executive Summary:

A field experiment was conducted at the research field of Pulses Research Centre, Regional Agriculture Research Station, Ishurdi, Pabna during 2017-18 to find out the suitable fertilizer dose for grasspea relay cropping system with T.aman rice in High Ganges Floodplain soil. The trial consisted of six nutrient treatments such as T₁ = Native (control), T₂ = Farmers practice, T₃ = FRG 2012, T₄ = FRG 2012+Zn_2.0, T₅ = FRG 2012+B_1.0, T₆ = FRG 2012+Zn_2.0+B_1.The experiment was designed as a randomized complete block with three replications. The result showed that the application of different nutrient management proved effective in significantly enhancing the yield attributes and seed yield of grasspea. The maximum number of pods per plant and number of seeds per pod were recorded from the treatment T₆ (FRG 2012+Zn_2.0+B₁) and T₅ (FRG 2012+B_1.) which was significantly different from the other treatments, but statistically identical to T₄ (FRG 2012+Zn_2.0) while it was lowest in control plot due to variation for nutrient supply. The maximum seed yield of grasspea was found in treatment T₆(FRG 2012+Zn_2.0+B₁) followed by treatment T₅(FRG 2012+B_1.0). Regarding the cost and return analysis, the highest net return TK. 115650/ha was obtained from treatment T₆. The highest benefit-cost ratio 2.36 and 2.28 were recorded from the treatment T₆ and T₅. Therefore, it may be concluded that treatment T₆ (20-20-18-10-2-1 kg N-P-K-S-Zn-B/ha) and T₅(20-20-18-10-1 kg N-P-K-S-B/ha) may be considered as economically sound and optimum fertilizer dose for yield maximization of grasspea production relay with T.aman rice in High Ganges River Floodplain soil (AEZ # 11).

Keywords: Benefit-cost ratio, Floodplain soil, Grasspea, Relay cropping

Location: Pulses Research Centre, Regional Agriculture Research Station, Ishurdi, Pabna

Start Date: 00-00-2017

End Date: 00-00-2018

Program Area: Crop-Soil-Water Management

Commodity: Fertilizer, Grasspea

Objectives:

An experiment has been planned to find out the suitable fertilizer dose for grass pea relay cropping system with T.aman rice in High Ganges Floodplain soil (AEZ # 11).

Methodology:

The experiment was conducted at the research field of Pulses Research Centre, Regional Agriculture Research Station, Ishurdi, Pabna during 2017-18 to find out the suitable fertilizer dose for grass pea relay cropping system with T.aman rice in High Ganges Floodplain soil. The initial soil samples collected from the experimental plot from a depth of 0-15 cm and were analyzed in the laboratory following standard methods. Initial values of some important chemical parameters of the soil of the experimental field are presented in table 3.10. The trial consisted of eight nutrient treatments such as such as T₁ = Native (control), T₂ = Farmers practice, T₃ = FRG 2012, T₄ = FRG 2012+Zn_2.0, T₅ = FRG 2012+B_1.0, T₆ = FRG 2012+Zn_2.0+B_1.The experiment was designed as a randomized complete block with three replications. The unit plot size was 4m×3m. Nutrients N-P-K-S-Zn-B was supplied from Urea, TSP, MP, Gypsum, Zinc sulphate and Boric acid, respectively. All fertilizers should be applied broadcast before sowing. The variety was BARI Khashari 3. Grasspea was sown on 5 November 2017 as a relay with T.aman rice maintaining a seed rate of 60 kg/ha. Seeding was done with the broadcasting method. Intercultural operations were done as and when necessary. Grasspea was harvested on 25 February 2018. Data on seed yield were collected from the whole plot and stover data were counted from 2 square meters but all the yield components namely: plant height, pod length, number of pods/plant, number of seeds /pod and 1000 seed weight were collected from ten plants selected randomly from each unit plot. Collected data were statistically analyzed through MSTAT-C package. Economic analyses were calculated. In this study, BCR was calculated for a hectare of land. Treatment-wise management cost was calculated by adding the cost incurred for labours and inputs for each treatment. The total yield after each harvest was calculated separately for every treatment and accumulated at the end of the final harvest. The total yield of each treatment was converted for determining yield (t/ha). This yield was utilized to calculate the gross return. This was measured by multiplying the total yield by the unit price of grasspea at that time. Net return was calculated by subtracting management cost from gross return.

Source of Information: Annual Research Report 2017-2018, Pulses Research Centre, RARS, BARI, Ishurdi, Pabna

Article Link (Online Journal):

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Different nutrient management showed a significant effect on the yield and yield components of grasspea. The plant height of grasspea ranged from 88 to 107.3 cm. The highest plant height was recorded from treatment T₄ which was significantly higher over the other treatments that were statistically identical to treatment_,T₅and T₆. The significant increase in plant height with these treatments might be due to a higher amount of nutrients. The pod length was recorded from treatment T₅. The lowest values were obtained from the treatment T₁(Control). The maximum number of pods per plant was recorded from the treatment T₆ and T₅ which was significantly different from the others treatments, but statistically identical to T₄while it was lowest in T₁ treatment. This might be due to variation in nutrient supply. The highest number of seeds per pod was observed in T₆followed by T₅ and T₄and the lowest value in T₁treatment. The seed yield of grasspea was influenced significantly differ by different nutrient management practices. Maximum seed yield was found in the treatment T₆and T_5.This was significantly higher than the other treatments. The lowest yield was recorded from the control treatment. This might be due to that a higher amount of nutrients might have improved and developed a good root system of grasspea plants and the capacity of root to absorb more N, P and K. Maximum stover yield was found from treatment T₆ and T₄ but lowest in the control plot. Regarding the cost and return analysis, the maximum net return Tk. 115650/ha was obtained from treatment T₆which was followed by treatment T₅ and T₄. The highest benefit-cost ratio 2.36 and 2.28 were recorded from the treatment T₆ and T₅. The lowest net return was calculated from control (T₁) treatment and the lowest benefit-cost ratio was counted from the control

Knowledge Management: Report/Proceedings