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Yield improvement of direct sown rice on raised beds using different priming techniques in salt affected soils

Research Paper | July 1, 2019

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Muhammad Qaisar Nawaz, Khalil Ahmed, Muhammad Sarfraz, Ghulam Qadir, Zaheen Manzoor, Muhammad Faisal Nawaz, Muhammad Nadeem, Imtiaz Ali Warriach, Muhammad Sultan Ali bazmi

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Int. J. Biosci.15( 1), 155-161, July 2019

DOI: http://dx.doi.org/10.12692/ijb/15.1.155-161


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The principal method for rice establishment is transplanting, however, water scarcity and labor shortage limited the transplanting method and required an alternative approach. One of the most pragmatic and economical approach is the direct seeding of rice in an aerobic condition, but problems associated with direct seeding rice are weed infestation, uneven crop stand and poor germination and these problems are further exacerbated in saline conditions. To overcome these problems, seed priming is an effective and economical technology for uniform emergence and establishment of seedlings, improved robustness and enhanced yields. So, a three years experiment was conducted from 2016 to 2018 to investigate the yield enhancement of direct sown rice with different seed priming agents using raised bed sowing method in salt affected soil. Treatments included in the study were: T1, KH2PO4 (2 %), T2, ZnSO4 (2 %), T3, SSP (1 %), T4, MgSO4 (2 %), T5, SSP + Urea (1% each). Experimental designed was RCBD with three replications. Seeds of rice cultivar (KSK-133) were soaked for 12 hours in respective osmopriming agents according to treatments plan. Three seeds per hill were sown by dibbling maintaining P x P and R x R distance of 30 cm. Yield and yield determining attributes of rice crop were recorded at harvesting. Results of our study showed that yield and yield determining attributes of direct sown rice were significantly influenced by all the seed priming agents, particularly seed priming with SSP solutions proved more superior as compared to other treatments and produced maximum paddy yield of direct sown rice. Therefore, it is suggested that seed priming with SSP solution can be an effective strategy to increase the yield of direct sown rice in salt affected soil which is easily and readily available source of phosphorus to poor farmers.


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Yield improvement of direct sown rice on raised beds using different priming techniques in salt affected soils

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