Responses of Potato (Solanum tuberosum) to Glomus sp. Combined with Pseudomonas diminuta at Different Rates of NPK Fertilizers
Abstract
Conventional farming for potato production in Indonesia has been using NPK fertilizer at high application rates. Any adverse environmental effects that might arise trough this fertilizer use shall be avoided. Application of bioferrtilizer consisted of ArbuscularMycorrhizal Fungi (Glomus sp.) isolated from the potato farming area and Mycorrhizal Helper Bacteria (Pseudomonas diminuta) have been tested to reduce the use of NPK rates in the production of potato crops. The inoculant has been pot-cultured prior to its application on potato crops. The controlled-field site experiment, used the mixtures of spores of Glomus sp. and inoculant of Pseudomonas diminuta, applied at different rates of NPK fertilizer. Results of the experiment showed that the application of Glomus sp. and Pseudomonas diminuta reduced the use of NPK up to 50%, where the growth, nutrients uptake(N,P,K), and tubers of potato had similar effect to the highest recommendation rate of NPK fertilizer (being applied by the farmers). Findings from this experiment confirmed the evidences that application of AM fungi and mycorrhizal helper bacteria could reduce the use of chemical fertilizer which support sustainable farming system. Further step has been done to scale up the production of inoculants for the wider use by local farmers.
Keywords:Glomus, Pseudomonas, mycorrhiza, potato, NPK fertilizer.
References
[1] Khoshnevisan, B., S. Rafieei, M. Omid and H. Mousazadeh. 2013. Emission of efficient and inefficient potato producers based on data envelopment analysis. Journal of Agricultural Engineering and Biotechnology 1(3):81-88.
[2] Auge, R.M. 2001. Water relations, drought and vesicular-arbuscular mycorrhizal symbiosis. Mycorrhiza, 11:3-42.
[3] Ordones, Y.M., Fernandez, B.R., Lara, L.S., Rodriguez, A., Uribe-Velez, D., Sanders, I.R. 2016. Bacteria with Phosphate Solubilizing Capacity Alter Mycorrhizal Fungal Growth Both Inside and Outside the Root and in the Presence of Native Microbial Communities. Plos ONE 11(6):e0154438. Doi:10.1371/journal.pone.0154438
[4] Tiberius, B. and Catalin, T. 2011. Interrelations between the mycorrhizalsystemsand soil organisms. J. Plant Develop. 18: 55-69.
[5] Bücking, H and Kafle, A. 2015. Role of ArbuscularMycorrhizal Fungi in the Nitrogen Uptake of Plants: Current Knowledge and Research Gaps. Agronomy5, 587-612; doi: 10.3390/agronomy5040587.
[6] Hidayat, C., Arief, D. H., Nurbaity, A. and Sauman, J. 2013. Rhizobacteria Selection to Enhance Spore Germination and Hyphal Length of ArbuscularMycorrhizal Fungi in Vitro. Asian Journal of Agriculture and Rural Development 3(4):199-204.
[7] Wu Fasi., Wang Wanfu., Ma Yantian., Liu Yongjun., Ma Xiaojun., An Lizhe., and FengHuyuan. 2013. Prospect of Beneficial Microorganism Applied in Potato Cultivation for Sustainable Agriculture. African Journals of Microbiology Research Vol 7 (20): 2150-2158.
[8] Nurbaity, A., Hidayat, C. Hudaya, C., Sauman, J. 2013. Mycorrhizal Fungi and Organic Matter Affect Some Physical Properties of Andisols. Soil Water Journal Vol 2 No 2(1): 639-644.
[9] Córdova, J., Valverde, F., Espinosa, F. 1996. Phosphorus Residual Effect in Andisols Cultivated with Potatoes. Better Crops International 10(2), Ecuador.
[10] Moore, D. Robson, G.D., Trinci, A.P.J. 2011. 21st Century Guidebook to Fungi. Cambridge University Press.
[11] Abbott, L.K. and Robson A.D. 1992. What is the Role of VA Mycorhizal. Soil 37-41.
[12] McArthur D.A.J. and Knowles, N.R. 1992. Resistance Responses of Potato to Vesicular-ArbuscularMycorrhizal Fungi under Varying Abiotic Phosphorus Levels’.Plant Physiol.100, 341-351.
[13] Adavi, Z., and Tadayoun, M.R. 2014. Effect of Mycorrhiza Application on Plant Growth and Yield in Potato Production under Field Condition. Iranian Journal of Plant Physiology, 4(3): 1087-1093.