International Journal of Life Science and Agriculture Research

Purpose: Sustainable agricultural intensification needs to be well developed. Therefore, food and agricultural production activities can be continuously produced without damaging the ecosystems and environment. One that can be used is a plant biostimulant based on humus. This research was conducted to examine the effect of humic acid as a soil biostimulant and the impact of its use on the yield of seedless watermelon cultivated on marginal land. This study involve IoT technology through monitoring soil quality which is carried out based on the concept of precision agriculture using the farm management system (FMS) Agrooscan tool.  Methods: The study used humic acid factor for five treatments (0, 2, 4, 6, and 8 g/L). Observations included soil conditions monitored with Agrooscan instruments such as soil pH, nutrients (N, P, K), as well as measuring plant height, fruit weight, fruit volume and total sugar content (Brix).

Results: The results showed that application of humic acid increased the nutrient content in the soil and significantly affected soil pH and seedless watermelon yields. The 8 g/L treatment gave the highest soil N and K values, and was significantly different from no treatment (control).

Conclusions: Thus, exogenous use of humic acid as a soil nutrient supplement can be used to help increase marginal land use, including in the development of seedless watermelon cultivation. The use of Agrooscan as a tool to scan soil conditions plays a very important role in maintaining the quality of nutrients so that the growth of watermelon cultivation can run better.

Agrooscan instrument, biostimulant, humic acid, scan automation, seedless watermelon, soil quality

1. Aziez, A.F., Budiyono, A., & Prasetyo, A. (2018). Improving quality of watermelon with plant growth regulator gibereline. Agrineca, 18(2): 1-11 (In Indonesian, with English abstract). https://dx.doi.org/10.36728/afp.v18i2.762
2. Badan Pusat Statistik Kabupaten Banyuwangi. (2023). Kabupaten Banyuwangi dalam Angka Banyuwangi Regency in Figures 2023. Banyuwangi: Cv. Anugrah Setia Abadi.
3. Canellasa, Luciano P., Olivares,Fábio L.  Aguiar, Natália O.  Jones, Davey L., Nebbiosoc, A., Mazzeic, P., &Piccoloc, A. (2015). Review: Humic and fulvic acids as biostimulants in horticulture. Scientia Horticulturae, 196 (2015) 15–27. https://doi.org/10.1016/j.scienta.2015.09.013
4. Chen Y., M.De Nobili & T. Aviad. (2004). Stimulatory effects of humic substances on plant growth. In: Soil organic matter in sustainable agriculture (Magdoff F., Weil R.R., eds). CRC Press, NY, USA: 103-129.
5. El-Boray, M. S. S., Mostafa, M. F. M., Abd El-Galel, M.M. & Somaa, I.A.I. (2015). Effect of humic and fulvic acids with some nutrients at different time of application on yield and fruits quality of anna apple trees. J. Plant Production, 6 (3): 307 -321. https://dx.doi.org/10.21608/jpp.2015.49321
6. Hanafiah, K. A. (2013). Dasar-Dasar Ilmu Tanah. 1. 6. Jakarta: Rajawali Pers
7. He, X., Zhang, H., Li, J., Yang, F., Dai, W., Xiang, C. & Zhang, M. (2022). The positive effects of humic/fulvic acid fertilizers on the quality of lemon fruits. Agronomy 2022, 12, 1919. https://doi.org/10.3390/agronomy12081919
8. Heil, C.A. (2005). Influence of humic, fulvic and hydrophilic acids on the growth, photosynthesis and respiration of dinoflagellate Prorocentrum minimum (Pavillard) Schiller. Harmful Algae. 4 (3) :603-618. https://doi.org/10.1016/j.hal.2004.08.010
9. Indra, P.B.B., Purnamasari, R.T., & Pratiwi., S.H. (2019). The effect of humic acid dosage on the growth and yield of peanut plants (Arachis hypogea L.). Agrosaintifika: Jurnal Ilmu-Ilmu Pertanian, 2 (1): 98-102 (In Indonesian, with English abstract). https://doi.org/10.32764/agrosaintifika.v2i1.758
10. Khan, A., Gurmani, A.R., Khan, M.Z., Hussain, F., Akhtar, M.E., Khan, S., Khan, A. (2013). Effect of humic acid on the growth, yield, nutrient composition, photosynthetic pigment and total sugar contents of peas (Pisum sativum L). J.Chem.Soc.Pak.,Vol. 35, No.1, 2013. https://www.researchgate.net/publication/288966636_Effect_of_humic_acid_on_the_growth_yield_nutrient_composition_photosynthetic_pigment_and_total_sugar_contents_of_peas_Pisum_Sativum_L
11. Lubis, D. S., A. S. Hanafiah, M.Sembiring. (2015). The effect of pH on root nodules formation, nitrogen and phosphorus uptake, and crop production in some soybean varieties in inceptisol on screen house. Agroekoteknologi, 03 (03) 2015: 1111-1115. (In Indonesian, with English abstract). https://dx.doi.org/10.32734/jaet.v3i3.10970
12. Mikkelsen, R.L. (2005). Humic Materials for Agriculture. Better Crops, 89: 7-10
13. Mindari, W., Sassongko, P.E., Syekhfani. 2022. Asam Humat sebagai Amelioran dan Pupuk. Penerbit UPN “Veteran”, Cetakan Ketiga: Surabaya, Jawa Timur
14. Mufti, F. & L. Hamidah. 2022. Smart Farming 4.0 Solusi Pertanian Indonesia. Yogyakarta: Salma Idea. 
15. Nardi S., D. Pizzeghello, A. Muscolo, & A. Vianello. (2002). Physiological effects of humic substances on higher plants. Soil Biol Biochem 34:1527–1536. https://doi.org/10.1016/S0038-0717(02)00174-8
16. Nikiyuluw, V., R. Soplanit, & A. Siregar. (2018). Efisiensi pemberian air dan kompos terhadap mineralisasi NPK pada tanah regosol. J. Budidaya Pertanian, 14(2): 105-112. doi: 10.30598/jbdp.2018.14.2.105.
17. Noroozisharaf, A., & M. Kaviani. (2018). Effect of soil application of humic acid on nutrients uptake, essential oil and chemical compositions of garden thyme (Thymus vulgaris L.) under greenhouse conditions. Physiol Mol Biol Plants, 24(3):423–431. https://doi.org/10.1007/s12298-018-0510-y
18. Novia, W., & Fajriani. (2021). Comparative analysis of the level of acidity (pH) of paddy soil using the calorimeter and electrometer method in Matang Setui Village. Jurnal Hadron, 03 (01) 2021: 10-12. (In Indonesian, with English abstract). https://doi.org/10.33059/jh.v3i1.3758
19. Nugroho. (2011). The role of leaf fertilizer concentration and dose of potassium fertilizer on tomato (Lycopersicum esculentum Mill). J.Politeknosains Ed. Khusus Dies Natalis: 35-43. (In Indonesian, with English abstract). https://docplayer.info/31048378-Peran-konsentrasi-pupuk-daun-dan-dosis-pupuk-kalium-terhadap-hasil-tanaman-tomat-lycopersicum-esculentum-mill-abstract.html
20. Pitono, J. (2020). The precision farming on pepper cultivation. Perspektif, 18(2),. https://doi.org/10.21082/psp.v18n2.2019.91-103.
21. Rahmandhias, D.T. & Rachmawati, D. (2020). The effect of humic acid on productivity and nitrogen uptake in kangkong (Ipomoea reptans Poir.). JIPI, Vol. 25 (2): 316-322. (In Indonesian, with English abstract). http://journal.ipb.ac.id/index.php/JIPI
22. Salman, S.R., Abou-hussein, S.D., Abdel-Mawgoud, A.M.R. and El-Nemr, M.A. (2005). Fruit yield and quality of watermelon as affected by hybrids and humic acid application. Journal of Applied Sciences Research 1(1): 51-58, 2005. https://www.researchgate.net/publication/281545361_Fruit_yield_and_quality_of_watermelon_as_affected_by_hybrids_and_humic_acid_application
23. Santoso, G., S. Hani, & R.Prasetiyo. (2020). Sistem monitoring kualitas tanah tanaman padi dengan parameter suhu dan kelembaban tanah berbasis Internet of Things (IoT) (Paddy soil quality monitoring system based on temperature and soil moisture parameters and Internet of Things (IoT)); Seminar Nasional Teknoka; 28 November 2020; Aula Ahmad Dahlan Lantai 6 Gedung A FKIP UHAMKA; Fakultas Teknik UHAMKA; 18 Oktober 2021.
24. Sarno & Eliza F. (2012). The Effect of Humic Acid Application on Growth and N Uptake in Spinach Plants (Amarathus spp.). In: Proceedings SNSMAIP III, Lampung: 288-293
25. Sjarif, S.R., Nuryadi, A.M., Sulistyorini, J. & Sukron, A. (2021). Additional glucose and the effect of brix degree to inhibite the crystalization process in liquid sugar products. Jurnal Penelitian Teknologi Industri, 13(1): 27-36. (In Indonesian, with English abstract). https://dx.doi.org/10.33749/jpti.v13i1.7165
26. Sutedjo, M. M. (2010). Pupuk dan Cara Pemupukan. Cetakan Kesembilan. Rineka Cipta. 23 -25.
27. Suwahyono, U. (2011). Prospects of remediation technology for critical land with humic acid. Jurnal Teknik Lingkungan. 12 (1): 55-65. (In Indonesian, with English abstract). https://media.neliti.com/media/publications/152508-ID-none.pdf
28. Tadmor, Y., King, S., Levi, A., Davis, A., & Hirschberg, J. (2005). Comparative fruit coloration in watermelon and tomato. Food Research International, 38: 837-841. https://doi.org/10.1016/j.foodres.2004.07.011
29. Tan, K. H. (1993). Dasar-dasar Kimia Tanah. Diterjemahkan oleh Didiek Hajdar Goenadi. Marcel Gajah Mada University Press.
30. Verlinden, G., Pycke, B., Mertens, J., Debersaques, F.,Verheyen, K., Baert, G. & Haesaert, G. (2009). Application of humic substances results in consistent increases in crop yield and nutrient uptake. J. of Plant Nutrition. 32(9): 1407–1426. https://doi.org/10.1080/01904160903092630