• I Ketut Sumantra Agrotechnology Study Program, Faculty of Agriculture and Business, Universitas Mahasaraswati Denpasar
  • I Ketut Widnyana Agrotechnology Study Program, Faculty of Agriculture and Business, Universitas Mahasaraswati Denpasar
  • Putu Pandawani Agrotechnology Study Program, Faculty of Agriculture and Business, Universitas Mahasaraswati Denpasar
Keywords: Reduction, Fertilizers, organic, Inorganic, Rice


The massive use of inorganic fertilizers without adequate organic fertilizers will cause land and plant productivity to decline.  This study aims to obtain a combination of organic and inorganic fertilizers and their effect on rice production. The study used a Randomized Block Design with three replications and four treatments, namely a) full inorganic package (200 urea + 200 kg Phonska), b) organic fertilizer + 75% inorganic fertilizer, c) organic fertilizer + 50% inorganic fertilizer, d) organic + 25% inorganic fertilizers. Organic fertilizers are given as essential fertilizers, while half of the inorganic fertilizers are given when the plants are planted and the rest when the tillers are active. The results showed that: 1) Applying a combination of organic and inorganic fertilizers increased the percentage of productive tillers, weight of 1000 grains and weight of dry grain harvested per hectare. 2) Application of organic fertilizer + 75% NPK can increase grain weight by 4% compared to using only NPK fertilizer.   The results of the study recommend that fertilizing rice with a combination of organic fertilizer + 50% NPK needs to be considered for increasing paddy grain production and improving the quality of rice fields.


Download data is not yet available.


Chen, JH. 2006. The combined use of chemical and organic fertilizers and/or bio fertility for crop growth and soil fertility. In Proceedings of the International Workshop on Sustained Management of the Soil-Rhizosphere System for Efficient Crop Production and Fertilizer Use, Bangkok, Thailand, 16–20 October 2006; 16, p. 20.

Evans. 1975. The Physiological Basis of Crop Yield. Cambridge University Press, London.

Geng, Y., Cao, G., Wang, L., & Wang, S. 2019. Effects of equal chemical fertilizer substitutions with organic manure on yield, dry matter, and nitrogen uptake of spring maize and soil nitrogen distribution. PLoS One, 14(7).

Gosal, SK, Gill, GK, Sharma, S., & Walia, SS. 2018. Soil nutrient status and yield of rice as affected by long-term integrated use of organic and inorganic fertilizers. Journal of Plant Nutrition, 41(4), 539-544.

Gusmiatu and N. Marlina. 2018. Peran Pupuk Organik dalam Mengurangi Pupuk Anorganik pada Budidaya Padi Gogo. Jurnal Ilmiah agribisnis dan Perikanan11(2): 91-99.

Mi, W., Sun, Y., Xia, S., Zhao, H., Mi, W., Brookes, PC, ... & Wu, L. 2018. Effect of inorganic fertilizers with organic amendments on soil chemical properties and rice yield in low-productivity paddy soil. Geoderma, 320, 23-29.

Moe, K., Htwe, AZ, Thu, TTP, Kajihara, Y., & Yamakawa, T. 2019. Effects on NPK status, growth, dry matter and yield of rice (Oryza sativa) by organic fertilizers applied in field condition. Agriculture, 9(5): 109.

Negassa, W., Getaneh, F., Deressa, A. and Dinsa, B. 2007. Integrated Use of Organic and Inorganic Fertilizers for Maize Production. Witzenhausen, Germany.

Sharma, S., Padbhushan, R., & Kumar, U. 2019. Integrated nutrient management in rice-wheat cropping system: an evidence on sustainability in the Indian subcontinent through meta-analysis. Agronomy, 9(2), 71.

Tang, H., Xiao, X., Tang, W., Li, C., Wang, K., Li, & Pan, X. 2018. Long-term effects of NPK fertilizers and organic manures on soil organic carbon and carbon management index under a double-cropping rice system in Southern China. Communications in Soil Science and Plant Analysis, 49(16), 1976-1989.

Tomar, R., Singh, NB, Singh, V., & Kumar, D. 2018. Effect of planting methods and integrated nutrient management on growth parameters, yield and economics of rice. J. Pharmacogn. Phytochem, 7(2), 520-527.

Vegera. 1990. Bercocok Tanam Padi. Proyek Prasarana Fisik Bappenas. Jakarta.

Veronica, N. T., Setiawan, A., & Tyasmoro, S. Y. 2019. Respon Varietas Lokal Dan Varietas Unggul Nasional Terhadap Kombinasi Pupuk Organik dan Anorganik pada Pertumbuhan dan Hasil Tanaman Padi (Oryza sativa L.). Jurnal Produksi Tanaman, 7(1).

Zhong, W.; Cai, Z. 2007. Long-term effects of inorganic fertilizers on microbial biomass and community functional diversity in paddy soil derived from quaternary red clay. App. Soil Ecol. 36, 84–91.

Yang, D., Xiao, X., He, N., Zhu, W., Liu, M., & Xie, G. 2020. Effects of reducing chemical fertilizer combined with organic amendments on ammonia-oxidizing bacteria and archaea communities in a low-fertility red paddy field. Environmental Science and Pollution