Main Article Content


This study aims to determine the effect of humic acid and micro compound fertilizer on soil microbial populations and yields of Inpago10 varieties of upland rice in coastal areas. This research was conducted from August to December 2021 in Beringin Jaya village, Muara Bangkahulu District, and analysis of soil and plant samples at the Soil Science Laboratory, Faculty of Agriculture, University of Bengkulu. This study was prepared using a randomized complete block design (RCBD) with 2 factors.The first factor is the dose of humic acid which consists of 3 levels, namely 0 L ha-1 , 8 L ha-1, and 16 L ha-1. The second factor is a compound micro fertilizer consisting of 2 levels, namely 0 g ha-1 and 70 g ha-1. Each treatment was repeated 4 times, resulting in 24 experimental units. Observation variables include C-organic (%), respiration, total microbial population, pH KCl, pH H2O, plant height (cm), the number of grains per panicle, plant dry weight (g), root dry weight (g), and weight per plot (g plot-1). The Data were analyzed using variance analysis and extended with DMRT at the level of 5%. The results showed that the application of humic acid was able to stimulate the population of soil microorganisms by 38.91% and the addition of micro compound fertilizer was able to increase the yield of weight per plot by 26.69%. 

Article Details

How to Cite
Sibagariang, N. A., Bertham, Y. H., Widiyono, H., Anandyawati, & Utami, K. (2022). The Effect of Humic Acid and Micro Compound Fertilizer on Soil Microorganism Population and Upland Rice Yield in Coastal Land. TERRA : Journal of Land Restoration, 5(2), 58–64.


  1. Afandi, F., B. Siswanto, and Y. Nuraini. 2015. The effect of various types of organic matter on the chemical properties of the soil on the growth and production of sweet potato plants in entisol Ngrangkah Pawon, Kediri. Journal of land and Land Resources V 2(2): 237-244.
  2. Asmara, A., A. Atmaja., A. Suwastika, and Kusumadewi. 2021. Effect of bamboo biochar size and urea fertilizer dosage on fertilizer efficiency and yield of green mustard (Brassica juncea L.) on sandy soils. Journal on Agricultural Science V 11 (2): 157-166.
  3. Bertham, Y. H., A.D. Nusantara., B. G. Murcitro, and Z. Arifin. 2020. Increased adaptability and growth of several varieties of gogo rice through inoculation of biofertilizers and biocomposites in coastal areas. Journal Of Agrin V 24 (2) : 185-194.
  4. Bertham, Y. H., A.D. Nusantara, and Sukisno. 2016. Socialization and assistance of chili cultivation Biological Technology package in a coastal area of Bengkulu. Dharma Raflesia Unib V(2): 155-165.
  5. Fadhli, R. 2021. Changes in the chemical properties of rice soil in Bener Meriah district by giving tithonia compost and rice straw. Journal Of Real Research V 3 (1): 61-68.
  6. Fauziah, F., R. Wulansari, dan E. Rezamela. 2018. The effect of micro fertilizer Zn and Cu and soil fertilizer on the development of Empoasca sp. in the area of tea plants. Journal Of Agriculture V 29 (1): 26-34.
  7. Heil, C. A. 2005. Effect of humic, fulvic, and hydrophilic acids on the growth, photosynthesis, and respiration of the dinoflagellate prorocentrum minimum (Pavillard) Schiller. Harmful Algae V 4: 603-618.
  8. Hermanto, D., N.K. Dharmayani, R. Kurnianingsih, and S. Kamali. 2013. The effect of humic acid as a fertilizer complement the availability and uptake of nutrients in corn crops in dry land District. Bayan-NTB. Agricultural Science V 16 (2) : 28-41.
  9. Husin, L., G. Manurung, dan M. Khoiri. 2014. The use of compost and micro fertilizer in Palm Oil seeding (Elaeis guineensis J.) in peat medium. Let Faperta V 1(2): 1-9.
  10. Idawanni., dan F. Ferayanti. 2021. Characteristics of growth and yield of three superior varieties of gogo rice on dry land in Pidie Jaya regency. Journal Of Research V 8 (1): 1-9.
  11. Janket, A., N. Vorasoot., T. Kesmala, and S. Joglon. 2018. The effect of zinc, copper, and manganese on dry matter yield and physiological traits of three cassava genotypes grown on soil micronutrient deficiencies. Pakistan Journal of Botany 50(5):1719-1725.
  12. Kurniawan, F., K. Setiawan, M. Hadi, and Agustiansyah. 2020. Agronomic character and production of cassava (Manihot esculenta C.) due to micronutrient fertilization. Journal Of Kelitbangan V 8(1): 29-38.
  13. Kurniawati, N., and Priyadi. 2021. Effect of fly ash and cow manure fertilizer application on microorganism population in ultisol soil. Journal of Applied Agricultural Sciences V 5(1): 41– 49.
  14. Lasabuda, R. 2013. Development of coastal and marine areas in the perspective of the archipelago of the Republic of Indonesia. Platax Scientific Journal V 1 (2): 92-101.
  15. Mandie, V., A. Simic, and Bijelic. 2015. Effect of foliar fertilization on soybean grain yield. Husbandry Biotechnology V 31 (1): 1-12.
  16. Minda, W., P. Sasson, U. Khasanah, and Pujiono. 2018. Rationalization of the role of biochar and Humate on soil Physico-chemical characteristics. Journal Of Folium V 1(2): 34 – 42.
  17. Zachary, L., and B. Damanik. 2015. Growth and yield of three varieties of gogo rice on fertilization treatment. Journal Of Floratek V 10: 54-60.
  18. Nikiyuluw, V., R. Soplanit, dan A. Siregar. 2018. The efficiency of giving water and compost to NPK mineralization on regosol soil. Journal Of Agricultural Cultivation V 14 (2) : 105-112.
  19. Nusantara, A. D., Y. H. Bertham., A. Junedi., H. Pujiwati, and Hartal. 2019. Utilization of microbes to improve the growth and yield of soybeans in coastal soil. Indonesian Journal Of Agricultural Sciences V 21 (1): 37-43.
  20. Nusantara, A. D., Y. H., Bertham, and I. Mansur. 2012. Works with arbuscular mycorrhizal fungi. Seamer Biotrop. Bogor. PP: 1-78.
  21. Praba, H., D. Harjoko, dan A. Jonah. 2018. Micro and complete nutrient application through leaves in some Chinese hybrid rice varieties. Journal Of Agrosains V 20 (1): 7 – 12.
  22. Primary, F., E. Nihayati, and N. Barunawati. 2017. Effect of altitude and boron application on pollen fertility and wheat yield (Triticum aestivum L.). Journal Of Crop Production V 5 (2) : 307-315.
  23. Priyadi, N. Kurniawati, and P.A. Nugroho. 2018. Soil biological activity derived from rubber plantations in various conditions kelengasan. Journal Of Enviscience. V 2(1): 10-15.
  24. Purbalisa, W., I. Zulaehah., D. Paputri and S. Revelation. 2020. Dynamics of carbon and microbes in soil treatment biochar compost plus. Journal Of Precipitation V 17 (2) : 138-143.
  25. Grace, S., KhairullaH, and Sufardi. 2020. Physical properties of entisols Darusslam after the provision of soil improvement in planting mustard seed growing season to four. Scientific Journal Of Agricultural Students V 5 (2): 317-326.
  26. Romlan, R.., V. Laia, dan T. Nainggolan. 2021. The effect of potassium fertilizer and iron (Fe) micronutrient elements on the growth and production of peanuts. Journal Of Agrotechnics V 5 (1): 68-82.
  27. Rozen, Nalwida, Nurhajati Hakim, and Gusnidar. 2007. Application of microelements in rice paddy intensification given tithonia plus organic fertilizer on SRI method. Journal Of Solum V 14(1): 1-12
  28. Ruhaimah, R., A. Asmar, dan M. Harianti. 2009. The residual effect of humic acid from rice straw composting process and water management in reducing iron toxicity (Fe) of new opening Paddy soil to rice production. Journal Of Solum V 6 (1) : 1-13.
  29. Sanda, N., dan N. Sham. 2018. The effectiveness of vermicompost organic fertilizer and liquid organic fertilizer on the growth and production of tomato plants (Lycopersicum esculantum M.). Journal Of Agrotek V 2(1): 16-27.
  30. Santi, L. 2016. The effect of humic acid on the growth of cocoa seedlings (Theobroma cacao) and the population of microorganisms in the soil humic dystrudept. Journal of soil and Climate V 40(2): 87-94.
  31. Septanti, K. S., and Saptana. 2019. Potential utilization of local wisdom to withstand the conversion of rice fields to moonshine. Agro Economic Research Forum V 37 (1): 59-75.
  32. Shaaban, S. H. A., F. M. Manal, and M. H. M. Afifi. 2009. Humic acid foliar application to minimize soil applied fertilization on surface-irrigated wheat. World Journal Of Agric Sci V 5 (2): 207-2010.
  33. Subowo, G. 2010. Strategy for the efficient use of organic materials for soil fertility and productivity through the empowerment of soil biological resources. Journal Of Land Resources V 4 (1): 13-25.
  34. Suwardi., and H. Wijaya. 2013. Increased production of food crops with the active ingredient humic acid with zeolite as a carrier. Indonesian Journal Of Agricultural Sciences V 18 (2): 79-84.
  35. Tangapo, A., D. I. Astuti, dan P. Aditiawati. 2018. The Dynamics and diversity of cultivable rhizospheric and endophytic bacteria during the growth stages of cilembu sweet potato (Ipomoea batatas L.). Agriculture and Natural Resources V 52 (4): 1-21.
  36. Wang, Y, Y. He, H. Zhang, and C. Li D. Zhou. 2008. Phosphate mobilization by citric, tartaric, and oxalic acids in a clay loam ultisol. Soil Sci. Soc. Am. J V 72: 1263-1268.
  37. Widayat, D., U. Umiyati, and D. Riswandi. 2020. Effect of micro compound fertilizer on rubber plant breeding (Hevea Brasiliensis L) on soil inception Jatinangor. Journal Of Agroswagati V 8 (1): 16-20.
  38. Winarso, S., E. Handayanto., Shaykhfani, and D. Sulistyanto. 2009. The effect of humic compounds on the activity of aluminum and phosphate typic plaeudult Kentrong Banteng. Agrivita V 31(3): 214-222.
  39. Yulianti, T. 2010. Distribution of soil microbial population in bptp Nai Bonet (NTT) in various planting patterns. PP: 277-282.