Evaluating the Impact of Different Irrigation Scheduling and Zinc Application Methods on Growth of Transplanted Summer Rice in Lateritic Soil of West Bengal

Author: Rahul Kumar Gupta, Ruchi Bharti, Kalipada Pramanik and Sk Naim Aktar

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Abstract

The study was conducted during the boro seasons (February–May) of 2021 and 2022 at the Agricultural Farm, Institute of Agriculture, Visva-Bharati, Sriniketan, West Bengal, India. The experiment was carried out in split-plot design with twenty treatments combinations and three replications. The experiment involved four irrigations scheduling viz., I1- irrigation of 5 cm when water level falls below 5 cm from soil surface in the perforated PVC water tube, I2- irrigation of 5 cm at one day after disappearance of ponded water, I3- irrigation of 5 cm at three days after disappearance of ponded water and I4- irrigation of 5 cm at hair crack stage of the soil in main plot and treatments and five zinc application viz., Zn0- control; Zn1- 25 kg ZnSO4, 7H2O ha-1 as soil application; Zn2- 0.5 % ZnSO4, 7H2O as foliar application at 15 and 45 DAT; Zn3- 0.3 % ZnSO4, 7H2O as seed priming; and Zn4- 0.5 % ZnSO4, 7H2O as nursery root dipping. The results showed that the application of irrigation of 5 cm at one day after disappearance of ponded water (I2) and irrigation of 5 cm at three days after disappearance of ponded water (I3) along with application of zinc through 0.3% ZnSO4, 7H2O as seed priming (Zn3) registered higher plant height, leaf area index (LAI) and dry matter accumulation. Thus, I2 or I3 along with Zn3 has best impact on growth parameters of transplanted summer rice in lateritic soil of West Bengal

Keywords

Dry matter accumulation, irrigation, plant height, rice, zinc

Conclusion

From the discussions, it can be concluded that cultivation of summer rice, with the application of irrigation of 5 cm at one day after disappearance of ponded water (I2) and irrigation of 5 cm at three days after disappearance of ponded water (I3) along with application of zinc through 0.3% ZnSO4, 7H2O as seed priming (Zn3) may be recommended for higher productivity in lateritic soil of West Bengal

References

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How to cite this article

Rahul Kumar Gupta, Ruchi Bharti, Kalipada Pramanik and Sk Naim Aktar (2024). Evaluating the Impact of Different Irrigation Scheduling and Zinc Application Methods on Growth of Transplanted Summer Rice in Lateritic Soil of West Bengal. Biological Forum – An International Journal, 16(3): 202-208