Nursery Management Options for Enhancing Post Flood Survival, Productivity and Economics of Rice (Oryza sativa L.) under Submergence in West Central Table Land Zone of Odisha

Author: B.S. Bishoyi*, B. Duary, S.S. Nanda, U.K. Behera and C. Patra

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Abstract

A field experiment was conducted at the Instructional Farm of the College of Agriculture, Chiplima, Sambalpur, Odisha kharif seasons in the year 2019 where submergence tolerant rice (Cultivar ‘Swarna sub 1’) was taken as test crop to investigate the effect of nursery management on seedling vigour and post flood survival of rice (Oryza sativa L.) as well as to study its subsequent effect on yield and economics under submergence. As Post flood survival and subsequent plant establishment are major challenges in flood prone areas, which many often depend upon the seedling vigour at the time of transplanting. Application of fertilizers and sowing of the pre germinated seeds were done as per the treatments. The Main field lay out was done as per the nursery lay out. A common Fertilizer dose of N:P2O5:K2O at 80:40:40 kg ha-1 was applied in the main field. Plants were completely submerged at 10 DAT with a water depth of 1.1 meter for a period of 15 days. From the experimental findings it

Keywords

Rice, Submergence, Nursery management, Nutrient management, Age of seedling, Seeding density.

Conclusion

Application of N:P2O5:K2O at 80:40:40 kg ha-1 where 25 kg N applied through FYM @ 5 t ha-1, seeding density of 40 g m-2 in the nursery and transplanting of 40 days old seedlings resulted comparable growth parameters of seedling at transplanting. Such practices significantly increased the post flood survival of rice leading to record significantly higher grain and straw yield and return rupees-1 invested of rice in flood prone low land condition. These practices can effectively be implemented in other states of India as well as Bangladesh and in the regions having similar ecologies

References

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How to cite this article

B.S. Bishoyi, B. Duary, S.S. Nanda, U.K. Behera and C. Patra (2022). Nursery Management Options for Enhancing Post Flood Survival, Productivity and Economics of Rice (Oryza sativa L.) under Submergence in West Central Table Land Zone of Odisha. Biological