Abbas, G., Abbas, Z., Aslam, M., Malik, A.U., Hussain, F., 2011. Effects of organic and inorganic fertilizers on mungbean (Vigna radiata L.) yield under arid climate. International Research Journal of Plant Science, 2(4): 094-098.
Alburquerque, J.A, Fuente, D.L.C., Campoy, M., Carrasco, L., Nájera, I., Baixaul, C., Caravaca, F., Roldán, A., Cegarra, J. and Bernal, M.P., 2012. Agricultural use of digestate for horticultural crop production and improvement of soil properties. European Journal of Agronomy, 43: 119-128.
https://doi.org/10.1016/j.eja.2012.06.001
Bandani, M., Mobasser, H.R. and Sirusmehr, A., 2014. Effect of organic fertilizer on quantitative yield of mung bean (Vigna radiata L). Journal of Novel Applied Sciences, 3(4): 367-370.
Brotodjojo, R.R.R. and Arbiwati, D., 2018. Growth and yield of hybrid corn under different fertilizer applications. Journal of Advanced Agricultural Technologies, 5(2): 149-152. https://doi.org/10.18178/joaat.5.2.149-152
Chang, Y., Zhao, H., Sun, L.,Cui, J., Liu, J., Tang, Q., Du, F., Liu, X., Yao, D., Li and M.J.,2022. Resource utilization of biogas waste as fertilizer in China needs more inspections due to the risk of heavy metals. Agriculture 12: 72.
https://doi.org/10.3390/agriculture12010072
Dragicevic, I., Sogn, T.A. and Eich-Greatorex, S., 2018. Recycling of biogas digestates in crop production—soil and plant trace metal content and variability. Frontiers in Sustainable Food Systems, 2(45): 1-14.
https://doi.org/10.3389/fsufs.2018.00045
Duyen, H.T.M., Chiem, N.H. and Nam, P.T., 2012. Effect of application ofbiogas-effluent charcoal to ammonia emission and salad growth. Journal of Science, Can Tho University, 18: 193-202.
Giang, P.T., Bích, V.N. and Vân, N.T.H., 2021. Study on the use of biogas wastewater in tomato cultivation. Science and technology VietNam, 6: 47-49.
Hidayati, S., Ali, M. and Purwanti, S., 2018. Granting of organic fertilizer and npk fertilizer to growth and results of sweet corn (Zea mays. L). International Journal of Engineering and Technology, 7(4-15): 427-430.
https://doi.org/10.14419/ijet.v7i4.15.23600
Hong, N.T. and Lieu, P.K., 2012. Treatment efficiencies of household-scale biogas systems on piggery wastewater in Thua Thien Hue province. Journal of Science, Hue University, 73(4): 83-91.
Jjagwe, J., Chelimo, K., Karungi, J., Komakech, A.J. and Lederer, j., 2020. Comparative Performance of Organic Fertilizers in Maize (Zea mays L.) Growth, Yield, and Economic Results. Agronomy 2020, 10: 69.
https://doi.org/10.3390/agronomy10010069
Kandil, E.E., Abdelsalam N.R., Mansour M.A.,Ali, M.H. and Siddiqui, M.H., 2020. Potentials of organic manure and potassium forms on maize (Zea mays L.). Scientific Reports, 10: 8752. https://doi.org/10.1038/s41598-020-65749-9.
Koszel, M. and Lorencowicz, E., 2015. Agricultural use of biogas digestate as a replacement fertilizers. Agriculture and Agricultural Science Procedia, 7: 119-124. https://doi.org/10.1016/j.aaspro.2015.12.004
Linh, T.B. and Guong, V.T., 2013. Effect of organic fertilizers on water holding capacity and structural strength of soil for fruit, pepper and vegetable crops in the Mekong Delta, Binh Duong and Da Lat. Journal of Science, Can Tho University, 25: 208-213.
Michael, G., Williams and Frank, F., 1999. Total viable counts most probable number (MPN) in Encyclopedia of Food Microbiology in Animal Biotechnology. United States of America, 2166-2168.
https://doi.org/10.1006/rwfm.1999.4000
Ministry of Natural Resources and Environment. 2016. National technical regulation on the effluents of livestock (QCVN 62-MT:2016/ BTNMT).
Moller, K. and Stinner, W., 2009. Effects of different manuring systems with and without biogas digestion on soil mineral nitrogen content and on gaseous nitrogen losses (ammonia, nitrous oxides). European Journal of Agronomy, 30: 1-16.
https://doi.org/10.1016/j.eja.2008.06.003
Nga, B.T. and Dat, N.V., 2014. Effects of using sewage sludge compost in growing lettuces (Lactuca sativa var.capitata L.) in the suburban area of Can Tho City. Journal of Science, Can Tho University, 33: 92-100.
https://doi.org/10.1007/s11356-017-0103-2
Nga, B.T., Izumi, T. and Thuan, N.C., 2015. Using wastewater as a biogas model to grow marigolds (Tagetes patula L.). Journal of Agriculture and Rural Development, 1: 55-60.
Nga, B.T., Thao, N.P., Thao, H.V., 2016. Research on using honeycomb coal slag to treat biogas wastewater to grow mustard green (Brassica juncea L.). Journal of Agriculture and Rural Development, 10: 173-178.
Nga, B.T., Chiem, N.H. and Nu, P.V., 2013. The biogas technology of plastic digesters in the rural areas of the Mekong Delta. Journal of Science Can Tho University, 28: 23-29.
Nghia, N.K. and Thu, T.T.A., 2017. Efficacy of the insecticide propoxur biodegradation in soil by Paracoccus sp. P23-7 strain immobilized in spent coffee grounds. Journal of Science Can Tho University, 52: 31-40.
https://doi.org/10.22144/ctu.jvn.2017.121
Nu, P.V., Nga, B.T. and Izumi, T., 2015. Using effluents from biodigester with loading material from pig manure and giant water fern (Pistia stratiotes) for cultivating chili peppers (Capsicum frutescens L.) (Capsicum frutescens L.). Journal of Science, Can Tho University, 36: 35-40.
Ortenblad, H., 2002. The use of digested slurry within agriculture.
Pertiwiningrum, A., Budyanto, E.C., Hidayat, M., Rochijan, Soeherman, Y. and Habibi, M.F., 2017. Making organic fertilizer using sludge from biogas production as carrier agent of Trichoderma harzianum. Journal of Biological Sciences, 17(1): 21-27.
https://doi.org/10.3923/jbs.2017.21.27
Rodhe, L., Salomon, E. and Edstrom, M., 2006. Handling of digestates on farm level. Economic calculations. JTI-rapport Landbruk and Industry 347, 1401-4963.
Ross, D.J., Tate, K.R., Speir, T.W., Stewart, D.J. and Hewitt, A.E., 1989. Influence of biogas-digester effluent on crop growth and soil biochemical properties under rotational cropping. New Zealand Journal of Crop and Horticultural Science, 17(1): 77-87.
https://doi.org/10.1080/01140671.1989.10428013
Sigurnjak, I., Vaneeckhaute, C., Michels, E., Ryckaert, B., Ghekiere, G., Tack, F.M.G. and Meers, E., 2017. Fertilizer performance of liquid fraction of digestate as synthetic nitrogen substitute in silage maize cultivation for three consecutive years. Science of The Total Environment. 600: 1885-1894.
https://doi.org/10.1016/j.scitotenv.2017.05.120
Smith, K.A., Metcalfe, J.P., Grylls, J.,Jeffrey, W.A., Sinclair, A.H. and Williams, J.R., 2007. Nutrient value of digestate from farm-based biogas plants in Scotland. Report for Scottish Executive Environment and Rural Affairs Department-ADA/009/06.
Taylor, W.I. and Harris, B., 1965. Isolation of Shigellae. II. Comparison of plating media and enrichment broths. American Journal of Clinical Pathology, 44(4): 476-479.
Thao, N.P., Anh N.T.L., Vân T.T.T., et al, 2017. Research on using biogas effluent for planting maize (Zea mays L.). Journal of Science, Can Tho University, 53A: 53-64. https://doi.org/10.22144/ctu.jvn.2017.141
ViL, Q., Huyen Đ.T.T., Tin P.Đ., et al, 2020. Evaluation of the efficiency of livestock waste water treatment after biogas regulating family households in the Mekong delta by the adsorption biochar method combined with high oxydation (ozon). Journal of Environment, Special Issue, 2020(1).
Viet, L.H., Y L.T.N., Nhi V.T.Đ. and Ngan, N.V.C., 2017. Study on treatment of biogas effluent by high rate Spirulina sp. algae culture pond. Journal of Science, Can Tho University. 49a: 1-10. https://doi.org/10.22144/jvn.2017.001
Vinh, N.Q., 2010. Summary report on Research on using wastewater from biogas plants as fertilizer for green vegetables and lettuce in Dong Nai. Final report Ministry of Agriculture and Rural Development.