PJB-2019-335
Co-inoculation of biogas slurry and Bacillus strain CIK-515 in improving nutrient concentration and yield of potato (Solanum tuberosum)
Iftikhar Ahmad, Muhammad Javed Akhtar, Ali Zakir, Muhammad Baqir Hussain, Abdul Khaliq, Muhammad Farhan Saeed, Muhammad Aslam Farooqi and Niaz Ahmed
Abstract
Manipulations of organic and inorganic fertilizers are known to enhance plant growth regulating factors in the soil that ultimately increase crop growth and yield. However, less has been investigated on the efficiency of both fertilizers by co-inoculating plant growth promoting rhizobacteria (PGPR). This study was designed to investigate the improvement in potato tuber yield and nutrient contents (N, P) through the integrated application of biogas slurry (BGS) and PGPR, Bacillus strain CIK-515, with or without the recommended dose of NPK (RNPK). The results showed a significant effect of BGS and PGPR on tuber yield (p<0.05) and that it was independent of the addition of RNPK. The application of BGS and CIK-515 showed a significant improvement in plant height (22-42%), total dry biomass (24-43%), tuber yield (19-51%), N and P (25-45%, 5-31% in plant biomass) in potato plant compared to RNPK, with or without. However, the combination of BGS and RNPK led to a significant increase in agronomic indices of N and P use efficiency. A better correlation had existed between tuber yield and NUE (R2 = 0.73) compared to tuber yield and PUE (R2 = 0.66). It could be concluded that co-inoculation of BGS and Bacillus strain CIK-515 could be a useful soil amendment that has the ability to improve N and P contents and tuber yield when utilized with mineral fertilizers.
To Cite this article:
Iftikhar Ahmad, Muhammad Javed Akhtar, Ali Zakir, Muhammad Baqir Hussain, Abdul Khaliq, Muhammad Farhan Saeed, Muhammad Aslam Farooqi And Niaz Ahmed - Co-inoculation of biogas slurry and Bacillus strain CIK-515 in improving nutrient concentration and yield of potato (Solanum tuberosum). Pak. J. Bot., 52(4): DOI: http://dx.doi.org/10.30848/PJB2020-4(45)
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