| This study aimed at improving the quality of potato tubers using vermicompost and plant extracts. It employed the RCBD design with three replicates within the factorial experiment (3*5). The factors included vermicompost at two levels of 0.5 and 1% designated V1 and V2, respectively, and treatment without vermicompost (V0). The second treatment involved foliar application of Cyperus Rotundus root extracts at 5 and 10 g L-1 designated T1 and T2, respectively, and Silybum marianum leaf extract at 5 and 10 g L-1 (T3 and T4 respectively), and spraying the control treatment with water (T0). The results showed significant improvements in treatment involving vermicompost and spraying with Silybum marianum leaf extract (V2T3) in terms of dry matter percentage of the tubers, their specific density, and percentages of starch, nitrogen, protein, carbohydrates and phenols at 28.55, 1.119, 21.44, 1.71, 10.68, 11.43% and 3.13 mg 100 g, respectively. This did not differ significantly in the percentage of dry matter and specific density of the tubers, their percentage of starch from the V0T3 treatment, the percentage of nitrogen and protein in the tubers for treatments V2T4, V1T3, V2T2, and V1T4, in carbohydrates for treatment V1T4, and in total phenols for treatment V2T2, V1T3, and V0T3 compared to the measured plants, which recorded 21.71, 1.087, 15.34, 1.35, 8.43, 5.56%, and 1.14 mg 100 g, respectively. Therefore, the application of 1% vermicompost and spraying of 5 g.L-1 Silybum marianum leaf extract is recommended for improving the quality of potato tubers and for sustainable cultivation. This will also promote recycling and preserve the environment. |
- Ali, N. S., H. S. Rahi, and A. A. Shaker. (2014). Soil fertility. Dar Al-Kutub Al-Ilmiyyah for printing, publishing, and distribution. Iraq. A. P. 307.
- Al-Malikshah, Z. R. J. Y. (2023). Effect of spraying with chitosan nano particles, nettle leaf extract and green tea extract on the growth and yield of potato and physical and chemical characteristics of starch. Ph.D. College of Agricultural Engineering Sciences, University of Baghdad. pp: 170.
- Al-Malikshah, Z. R. J., and Abdulrasool, I. J. (2024). Spraying nano chitosan loaded with NPK, nettel and green tea extracts as a tool for improvement potato productivity. Iraqi Journal of Agricultural Sciences, 55(Special): 175-185. https://doi.org/10.36103/ijas.v55iSpecial.1896.
- Al-Zaidi, A. K. N. A. (2023) The effect of mycorrhizal fungi, Trichoderma fungi, Nile flower peat and its extract on the growth and yield of potatoes. Doctoral thesis. University of Baghdad. College of Agricultural Engineering Sciences. Page: 200.
- (2016). Official methods of analysis of AOAC International. 20th Edition, Washington, D.C. PP:3172.
- Cajamarca, S. M. N., Martins, D., da Silva, J., Fontenelle, M. R., Guedes, Í. M. R., de Figueiredo, C. C., and Pacheco Lima, C. E. (2019). Heterogeneity in the chemical composition of biofertilizers, potential agronomic use, and heavy metal contents of different agro-industrial wastes. Sustainability, 11(7): 1995. https://doi.org/10.3390/su11071995.
- Devi, C., and Khwairakpam, M. (2022). Vermicompost for sustainable agriculture and bioconversion of terrestrial weed biomass into vermicompost. In New Generation of Organic Fertilizers. IntechOpen. DOI: 10.5772/intechopen.100615.
- Di Maria, F., Barratta, M., Bianconi, F., Placidi, P., and Passeri, D. (2017). Solid anaerobic digestion batch with liquid digestate recirculation and wet anaerobic digestion of organic waste: Comparison of system performances and identification of microbial guilds. Waste management, 59: 172-180. https://doi.org/10.1016/j.wasman.2016.10.039.
- Hasanuzzaman, M., Bhuyan, M. B., Nahar, K., Hossain, M. S., Mahmud, J. A., Hossen, M. S., ... and Fujita, M. (2018). Potassium: a vital regulator of plant responses and tolerance to abiotic stresses. Agronomy, 8(3): 31. https://doi.org/10.3390/agronomy8030031.
- Hassan, A. A. (2003). Potato production vegetable crop series: Production technology and advanced agricultural practices. Arab House for Publishing and Distribution, Egypt.
- Hosseinzadeh, S. R., Amiri, H., and Ismaili, A. (2016). Effect of vermicompost fertilizer on photosynthetic characteristics of chickpea (Cicer arietinum L.) under drought stress. Photosynthetica, 54: 87-92. https://doi.org/10.1007/s11099-015-0162-x.
- Ibrahim, H. I. M. (2010). Plant samples collected and analyzed. First edition. Dar Al Fajr for Publishing and Distribution. Arab Republic of Egypt, p. 534.
- Jackson, M. (1958). Soil chemical analysis prentice Hall. Inc., Englewood Cliffs, NJ, 498(1958): 183-204.
- Jeguirim, M., Goddard, M. L., Tamosiunas, A., Berrich-Betouche, E., Azzaz, A. A., Praspaliauskas, M., and Jellali, S. (2020). Olive mill wastewater: From a pollutant to green fuels, agricultural water source and bio-fertilizer. Biofuel production. Renewable Energy, 149: 716-724. https://doi.org/10.1016/j.renene.2019.12.079.
- Joslyn, M. A. (Ed.). (1970). Methods in food analysis. Physical, chemical and instrumental methods of analysis. Methods in food analysis. Physical, chemical and instrumental methods of analysis, 2nd ed. p:845.
- Latif, K., D., & I. Neamah, S. (2024). Physiological Changes And Growth Parameters Of Phaseolus Vulgaris L. Calli Cultures By Chitosan And Calcium Pantothenate Under Heat Stress. Anbar Journal Of Agricultural Sciences, 22(1), 691–705. https://doi.org/10.32649/ajas.2024.183788.
- Mageed, R. G., and Hussin, W. A. (2023). Promote the Quantitative and Qualitative Production of Three Varieties of Organically Grown Beetroot. In IOP Conference Series: Earth and Environmental Science, 1259(1): p. 012055. DOI: 10.1088/1755-1315/1259/1/012055.
- Mageed, R. G., and Hussin, W. A. (2023). The Effect of the Combination of Organic Fertilizer and Spraying with Silicon and Calcium on the Growth and Production of Three Cultivars of Beet. In IOP Conference Series: Earth and Environmental Science, 1213(1): p. 012004. DOI: 10.1088/1755-1315/1213/1/012004.
- Malla, M., Tesema, G., and Hegano, A. (2021). Evaluation of vermicompost on growth, yield and yield components of potato (Solanum tuberosum L.) in Debub Ari Woreda, Southwestern Ethiopia. Agricultural and Veterinary Sciences. 9(1): 12-21.
- Mohammed, A. S., and Estefo, J. I. (2018). Effect of seeds, leaves, and roots extract plants on growth and yield of pea. Tikrit Journal for Agricultural Sciences, 18(2): 60-67.
- Naiji, M., and Souri, M. K. (2018). Nutritional value and mineral concentrations of sweet basil under organic compared to chemical fertilization. Acta Scientiarum Polonorum. Hortorum Cultus, 17(2): 167-175. DOI: 10.24326/asphc.2018.2.14.
- Parastesh, F., Alikhani, H. A., and Etesami, H. (2019). Vermicompost enriched with phosphate–solubilizing bacteria provides plant with enough phosphorus in a sequential cropping under calcareous soil conditions. Journal of Cleaner Production, 221: 27-37. https://doi.org/10.1016/j.jclepro.2019.02.234.
- Salman, A. D., and Hussein, W. A. (2023). Effect of blue and red led light and some plant extract on lettuce growth and yield in NFT technique. In IOP Conference Series: Earth and Environmental Science, 1158(4): p. 042042. DOI: 10.1088/1755-1315/1158/4/042042.
- Salman, A. D., Hussein, W. A., and Mhawesh, A. O. (2023). Improving mini tuber potato growth and yield by some plants aqueous extract and earth worm compost. Anbar Journal of Agricultural Sciences, 21(2): 656-666. https://doi.org/10.32649/ajas.2023.144707.1098.
- Shayaa, A. H., and Hussein, W. A. (2019). Effect of neem leaves extract and organic fertilizer in the productivity and quality of two potato cultivars. The Iraqi Journal of Agricultural Science, 50(1): 275-285. https://doi.org/10.36103/ijas.v50i1.293.
- Singleton, V. L., Orthofer, R., and Lamuela-Raventós, R. M. (1999). [14] Analysis of total phenols and other oxidation substrates and antioxidants by means of folin-ciocalteu reagent. In Methods in enzymology, 299: 152-178. https://doi.org/10.1016/S0076-6879(99)99017-1.
- Trani, P. E., Terra, M. M., Tecchio, M. A., Teixeira, L. A. J., and Hanasiro, J. (2013). Adubação orgânica de hortaliças e frutíferas. Campinas: Instituto Agronômico de Campinas.
|