Impact of SRI Components on Growth and Productivity of Conventional Transplanted Rice

Author: Rahul Kumar, Manish Raj, Kanhaiya Lal and Ankita Ranjan

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Abstract

Conventional puddled rice cultivation is labour intensive and water consumptive, while SRI addresses these issues. So, the effect of System of Rice Intensification (SRI) components studied on growth and yield of conventional transplanted kharif rice, an experiment was conducted at research farm of Bihar Agricultural University, Sabour, Bhagalpur, India during kharif 2019. The experiment was laid out in completely randomized block design with eight treatments replicated thrice. The first treatment was conventional puddled transplanted rice (CPTR), thereafter six treatments were also CPTR with an addition component of SRI in each treatment and the last treatment was sole SRI. Results revealed that all growth parameters i.e., plant height, leaf area index and dry matter accumulation obtained highest in the SRI at all growth stages. The highest grain yield (6020 kg ha-1) was recorded in the SRI, which was statistically at par with CPTR with 12 days seedling (5693 kg ha-1). The highest stra

Keywords

SRI, Puddled transplanted rice, younger seedlings, Square planting.

Conclusion

All growth parameters as well as yield parameters were recorded highest in the SRI which was statistically at par with CPTR using 12 days old seedlings in most of the parameters. Similar trend was observed in grain yield as well as straw yield. Treatments CPTR using 12 days old seedlings and CPTR with single seedling/hill have performed well and are next to only SRI in terms of growth parameters, yield parameters and yield. Transplanting 12 days young seedlings in CPTR would be able to increase the grain yield by 7.2%, over the conventional transplanted rice with 21 days old seedlings. The SRI technique is superior regarding grain yield over the conventional practice (14% higher) but following all principles of SRI is a herculean task for farmers in some regions because of the unavailability of resources. Based on these findings, we can suggest the farmers in our country to go for partial implementation of SRI i.e., 12 days old seedling with single seedling/hill in transplanted kharif

References

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How to cite this article

Kumar, R., Raj, M., Lal, K. and Ranjan, A. (2021). Impact of SRI Components on Growth and Productivity of Conventional Transplanted Rice. Biological Forum – An International Journal, 13(3): 196-199.