Main Article Content
Abstract
The uses of liquid organic fertilizer (LOF) have been increasingly practiced in organic vegetable to increase the effectiveness of solid organic fertilizer application. Farmers can produce LOF by using locally available green biomass in the surrounding production areas, including leaves of Leucaena leucocephala (Lam) de Wit. This experiment aimed to determine the best concentration of Leucaena leaf-based LOF on growth and yield of Pak Choi (Brassica rapa Subsp. Chinensis). An experiment was arranged in Randomized Complete Design with seven replicates. Treatments are several concentrations of Leucaena leaf-based LOF, 0%, 25%, 50%, 75% and 100%. Although, the concentration of 50% was likely able to increase shoot length, leaf area and leaf greenness of Pak Choi, but the effects of Leucaena leaf-based LOF on leaf numbers, shoot fresh weight, shoot dry weight, root fresh weight and root dry weight of Pak Choi were insignificant. Consistency effects of Leucaena leaf-based LOF in the production of Pak Choi should be re-evaluated
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Copyright (c) 2024 Dewi Anjasmoro Wati, Fahrurrozi Fahrurrozi, Entang Inoriah

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References
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- BPS. 2022. Statistics of Horticulture 2022. BPS-Statistics Indonesia. 97 pp.
- https://www.bps.go.id/publication/2023/06/09/03847c5743d8b6cd3f08ab76/statistik-hortikultura-2022.html
- Fahrurrozi, F., D.N. Sari, E.R. Togatorop, U. Salamah, Z. Muktamar, N. Setyowati, M. Chozin, and S. Sudjatmiko. 2019. Yield performances of potato (Solanum tuberosum L.) as amended with liquid organic fertilizer and vermicompost. International Journal of Agricultural Technology 15(6):869-878. http://www.ijat-aatsea.com/pdf/v15_n6_2019_November/6_IJAT_15(6)_2019_Fahrurrozi,%20F..pdf
- Fahrurrozi, F., Sariasih, Y., Muktamar, Z., Setyowati, N., Chozin, M., & Sudjatmiko, S. 2017. Identification of nutrient contents in six potential green biomasses for developing liquid organic fertilizer in closed agriculture production system. https://doi.org/10.31219/osf.io/2mdx8
- Fahrurrozi, F., Z. Muktamar, N. Setyowati, and S. Sudjatmiko. 2022. liquid organic fertilizer increased nutrient uptakes, growth and yields of organically grown carrot and green onion. Asian Journal of Plant Sciences 21(4):707-715. https://doi.org/10.3923/ajps.2022.707.715
- Fahrurrozi., Z. Muktamar, N. Setyowati, S. Sudjatmiko, and M. Chozin. 2015. Evaluation of Tithonia-enriched liquid organic fertilizer for organic carrot production. International Journal of Agricultural Technology 11(8):1705-1712. http://www.ijat-aatsea.com/pdf/v11_n8_15_DecemberSpecialissue/008%20-%20Fahrurrozi-S1.pdf
- Gomies, L., H. Rehatta dan J. Nandissa. 2012. Pengaruh pupuk organik cair R11 terhadap pertumbuhan dan produksi tanaman kubis bunga (Brassica oleracea var. Botrytis L.). Agrologia 1(1):13-20. https://ojs.unpatti.ac.id/index.php/agrologia/article/view/294
- Hardiansyah, P., Nurjanah, U. and Widodo., 2019. Growth response and yield of pakcoy (Brassica rapa L.) on various concentrations liquid organic fertilizer of Jiringa hulls [Phithecellobium jiringa (Jack) Prain Ex King]. Akta Agrosia 22(2):43-49. https://doi.org/10.31186/aa.22.2.43-49
- Hartadi, H., S. Reksohadiprojo, dan A.D. Tillman. 2005. Tabel Konsumsi Pakan untuk Indonesia. Gajah Mada University Press. Yogyakarta.
- Hartz, T.K., J.P. Mitchell, and C. Giannini. 2000. Nitrogen and carbon mineralization dynamics of manures and composts. HortScience 35(2):209-212. https://doi.org/10.21273/hortsci.35.2.209
- Hasan, F., M.J. Nur, dan F. Nayo. 2021. Aplikasi pupuk organik cair daun lamtoro (Leucaena leucophala (Lam.) de Wit) terhadap pertumbuhan dan produksi tanaman jagung manis (Zea mays saccharata sturt L.). Jurnal Agercolere 3(2):38-44. https://doi.org/10.37195/jac.v3i2.129
- Hawkesford, M., W. Horst, T. Kichey, H. Lambers, J. Schjoerring, I.S. Møller, and P. White. 2012. Functions of Macronutrients. In: P. Marschner (Ed.). Marschner’s Mineral Nutrition of Higher Plants (3rd ed.). pp.135-189. Academic Press.
- Hidayat, O., dan A. Suharyana. 2019. Pengaruh dosis pupuk organik cair daun lamtoro terhadap pertumbuhan dan hasil tanaman Pak Coy (Brassica rapa L.) varietas Nauli-F1. PASPALUM : Jurnal Ilmiah Pertanian 7(2):57-63.
- Indonesian Ministry of Agriculture. 2022. Statistics of Food Consumption. Center for Agricultural Data & Information System Secretariate General, Indonesian Ministry of Agriculture. 132pp. https://satudata.pertanian.go.id/assets/docs/publikasi/Buku_Statistik_Konsumsi_2022.pdf
- Jeksen, J., dan C. Mutiara. 2017. Analisis kualitas pupuk organik cair dari beberapa jenis tanaman leguminosa. Jurnal Pendidikan MIPA 7(2):124-130. https://ejournal.tsb.ac.id/index.php/jpm/article/view/9
- Mohammad, N.S., F.A. Kassim, N. Usaizan, A. Hamidon, and Z.S. Safari. 2022. Effects of organic fertilizer on growth performance and postharvest quality of Pak Choy (Brassica rapa subsp. Chinensis). AgroTech Food Science, Technology and Environment 1(1):43-50. https://doi.org/10.53797/agrotech.v1i1.6.2022
- Muktamar, Z., S. Sudjatmiko, M. Chozin, N. Setyowati, and F. Fahrurrozi. 2017. Sweet corn performance and its major nutrient uptake following application of vermicompost supplemented with liquid organic fertilizer. International Journal on Advanced Science, Engineering and Information Technology 7(2):602-608. https://doi.org/10.18517/ijaseit.7.2.1112
- Purbajanti, E.D., and S. Setyowati. 2020. Organic fertilizer improve the growth, physiological characters and yield of Pak Choy. Agrosain:Jurnal Penelitian Agronomi 22(2):83-87. http://dx.doi.org/10.20961/agsjpa.v22i2.43112.
- Ram, D. 2009. How to grow Pak-Choi. Ministry of Food Production, Land and Marines Affairs. Extension Training and Information Services Division. Home Gardening Series. HG/TT:Ag Ext 98:16. https://agriculture.gov.tt/wp-content/uploads/2017/11/how-to-grow-pakchoi.pdf
- Ramadhani, B.M. and Koesriharti. 2022. The effect of organic fertilizer and nitrogen on growth and yield of Pak Choy (Brassica rapa L. var chinensis). Plantropica: Journal of Agricultural Science 7(1):54-60. https://jpt.ub.ac.id/index.php/jpt/article/view/286
- Septirosya, T., R.H. Putri, dan T. Aulawi. 2019. Aplikasi pupuk organik cair lamtoro pada pertumbuhan dan hasil tanaman tomat. AGROSCRIPT: Journal of Applied Agricultural Sciences 1(1):1-8. https://doi.org/10.36423/agroscript.v1i1.185
- Shoemaker, W.H. 1991. Irrigating and Mulching, In J.M. Swiader, G.W. Ware, and J.P. McCollum. (eds). Producing Vegetable Crops. (pp. 133-149). Interstate Publisher, Danville, Illinois, USA.
- Slamet, A.S., A. Nakayasu, and H. Bai. 2016. The determinants of organic vegetable purchasing in Jabodetabek region, Indonesia. Foods 5:85. https://doi.org/10.3390/foods5040085
- Uchida, R. 2000. Essential nutrient for plant growth: Nutrient functions and deficiency symptoms. In: JA. Silva and R. Uchida (eds). Plant Nutrition Management in Hawaii’s Soils, Approaches for Tropical and Subtropical Agriculture. Chapter 3 (pp. 31-55). College of Tropical Agriculture & Human Resources. University of Hawaii at Manoa.
- Yao, Y., Q. Dai, R. Gao, Y. Gan, X. Yi. 2021. Effects of rainfall intensity on runoff and nutrient loss of gently sloping farmland in a karst area of SW China. PloS ONE 16(3)
- Zhai, L., E. David, T. Forge, T. Helmer, W. Lin, M. Dorais, and A.P. Papadopoulus. 2009. Organic fertilizer for greenhouse tomatoes: Productivity and substrate microbiology. HortScience 44:800-809.
- https://journals.ashs.org/hortsci/view/journals/hortsci/44/3/article-p800.xml
- http://dx.doi.org/10.35138/paspalum.v7i2.118
- Yao, Y., Q. Dai, R. Gao, Y. Gan and X. Yi. 2021. Effects of rainfall intensity on runoff and nutrient loss of gently sloping farmland in a karst area of SW China. PLoS One 18:16(3):e0246505. https://dx.doi.org/10.1371/journal.pone.0246505
References
Al-Akhyar., F. Fahrurrozi, W. Widodo, and D.N. Sari. 2019. Use of gliricidae-enriched liquid organic fertilizer for production of Caisim (Brassica juncea L.). Jurnal Agroqua 17(1): 1-7. https://journals.unihaz.ac.id/index.php/agroqua/article/view/725
BPS. 2022. Statistics of Horticulture 2022. BPS-Statistics Indonesia. 97 pp.
Fahrurrozi, F., D.N. Sari, E.R. Togatorop, U. Salamah, Z. Muktamar, N. Setyowati, M. Chozin, and S. Sudjatmiko. 2019. Yield performances of potato (Solanum tuberosum L.) as amended with liquid organic fertilizer and vermicompost. International Journal of Agricultural Technology 15(6):869-878. http://www.ijat-aatsea.com/pdf/v15_n6_2019_November/6_IJAT_15(6)_2019_Fahrurrozi,%20F..pdf
Fahrurrozi, F., Sariasih, Y., Muktamar, Z., Setyowati, N., Chozin, M., & Sudjatmiko, S. 2017. Identification of nutrient contents in six potential green biomasses for developing liquid organic fertilizer in closed agriculture production system. https://doi.org/10.31219/osf.io/2mdx8
Fahrurrozi, F., Z. Muktamar, N. Setyowati, and S. Sudjatmiko. 2022. liquid organic fertilizer increased nutrient uptakes, growth and yields of organically grown carrot and green onion. Asian Journal of Plant Sciences 21(4):707-715. https://doi.org/10.3923/ajps.2022.707.715
Fahrurrozi., Z. Muktamar, N. Setyowati, S. Sudjatmiko, and M. Chozin. 2015. Evaluation of Tithonia-enriched liquid organic fertilizer for organic carrot production. International Journal of Agricultural Technology 11(8):1705-1712. http://www.ijat-aatsea.com/pdf/v11_n8_15_DecemberSpecialissue/008%20-%20Fahrurrozi-S1.pdf
Gomies, L., H. Rehatta dan J. Nandissa. 2012. Pengaruh pupuk organik cair R11 terhadap pertumbuhan dan produksi tanaman kubis bunga (Brassica oleracea var. Botrytis L.). Agrologia 1(1):13-20. https://ojs.unpatti.ac.id/index.php/agrologia/article/view/294
Hardiansyah, P., Nurjanah, U. and Widodo., 2019. Growth response and yield of pakcoy (Brassica rapa L.) on various concentrations liquid organic fertilizer of Jiringa hulls [Phithecellobium jiringa (Jack) Prain Ex King]. Akta Agrosia 22(2):43-49. https://doi.org/10.31186/aa.22.2.43-49
Hartadi, H., S. Reksohadiprojo, dan A.D. Tillman. 2005. Tabel Konsumsi Pakan untuk Indonesia. Gajah Mada University Press. Yogyakarta.
Hartz, T.K., J.P. Mitchell, and C. Giannini. 2000. Nitrogen and carbon mineralization dynamics of manures and composts. HortScience 35(2):209-212. https://doi.org/10.21273/hortsci.35.2.209
Hasan, F., M.J. Nur, dan F. Nayo. 2021. Aplikasi pupuk organik cair daun lamtoro (Leucaena leucophala (Lam.) de Wit) terhadap pertumbuhan dan produksi tanaman jagung manis (Zea mays saccharata sturt L.). Jurnal Agercolere 3(2):38-44. https://doi.org/10.37195/jac.v3i2.129
Hawkesford, M., W. Horst, T. Kichey, H. Lambers, J. Schjoerring, I.S. Møller, and P. White. 2012. Functions of Macronutrients. In: P. Marschner (Ed.). Marschner’s Mineral Nutrition of Higher Plants (3rd ed.). pp.135-189. Academic Press.
Hidayat, O., dan A. Suharyana. 2019. Pengaruh dosis pupuk organik cair daun lamtoro terhadap pertumbuhan dan hasil tanaman Pak Coy (Brassica rapa L.) varietas Nauli-F1. PASPALUM : Jurnal Ilmiah Pertanian 7(2):57-63.
Indonesian Ministry of Agriculture. 2022. Statistics of Food Consumption. Center for Agricultural Data & Information System Secretariate General, Indonesian Ministry of Agriculture. 132pp. https://satudata.pertanian.go.id/assets/docs/publikasi/Buku_Statistik_Konsumsi_2022.pdf
Jeksen, J., dan C. Mutiara. 2017. Analisis kualitas pupuk organik cair dari beberapa jenis tanaman leguminosa. Jurnal Pendidikan MIPA 7(2):124-130. https://ejournal.tsb.ac.id/index.php/jpm/article/view/9
Mohammad, N.S., F.A. Kassim, N. Usaizan, A. Hamidon, and Z.S. Safari. 2022. Effects of organic fertilizer on growth performance and postharvest quality of Pak Choy (Brassica rapa subsp. Chinensis). AgroTech Food Science, Technology and Environment 1(1):43-50. https://doi.org/10.53797/agrotech.v1i1.6.2022
Muktamar, Z., S. Sudjatmiko, M. Chozin, N. Setyowati, and F. Fahrurrozi. 2017. Sweet corn performance and its major nutrient uptake following application of vermicompost supplemented with liquid organic fertilizer. International Journal on Advanced Science, Engineering and Information Technology 7(2):602-608. https://doi.org/10.18517/ijaseit.7.2.1112
Purbajanti, E.D., and S. Setyowati. 2020. Organic fertilizer improve the growth, physiological characters and yield of Pak Choy. Agrosain:Jurnal Penelitian Agronomi 22(2):83-87. http://dx.doi.org/10.20961/agsjpa.v22i2.43112.
Ram, D. 2009. How to grow Pak-Choi. Ministry of Food Production, Land and Marines Affairs. Extension Training and Information Services Division. Home Gardening Series. HG/TT:Ag Ext 98:16. https://agriculture.gov.tt/wp-content/uploads/2017/11/how-to-grow-pakchoi.pdf
Ramadhani, B.M. and Koesriharti. 2022. The effect of organic fertilizer and nitrogen on growth and yield of Pak Choy (Brassica rapa L. var chinensis). Plantropica: Journal of Agricultural Science 7(1):54-60. https://jpt.ub.ac.id/index.php/jpt/article/view/286
Septirosya, T., R.H. Putri, dan T. Aulawi. 2019. Aplikasi pupuk organik cair lamtoro pada pertumbuhan dan hasil tanaman tomat. AGROSCRIPT: Journal of Applied Agricultural Sciences 1(1):1-8. https://doi.org/10.36423/agroscript.v1i1.185
Shoemaker, W.H. 1991. Irrigating and Mulching, In J.M. Swiader, G.W. Ware, and J.P. McCollum. (eds). Producing Vegetable Crops. (pp. 133-149). Interstate Publisher, Danville, Illinois, USA.
Slamet, A.S., A. Nakayasu, and H. Bai. 2016. The determinants of organic vegetable purchasing in Jabodetabek region, Indonesia. Foods 5:85. https://doi.org/10.3390/foods5040085
Uchida, R. 2000. Essential nutrient for plant growth: Nutrient functions and deficiency symptoms. In: JA. Silva and R. Uchida (eds). Plant Nutrition Management in Hawaii’s Soils, Approaches for Tropical and Subtropical Agriculture. Chapter 3 (pp. 31-55). College of Tropical Agriculture & Human Resources. University of Hawaii at Manoa.
Yao, Y., Q. Dai, R. Gao, Y. Gan, X. Yi. 2021. Effects of rainfall intensity on runoff and nutrient loss of gently sloping farmland in a karst area of SW China. PloS ONE 16(3)
Zhai, L., E. David, T. Forge, T. Helmer, W. Lin, M. Dorais, and A.P. Papadopoulus. 2009. Organic fertilizer for greenhouse tomatoes: Productivity and substrate microbiology. HortScience 44:800-809.
https://journals.ashs.org/hortsci/view/journals/hortsci/44/3/article-p800.xml
http://dx.doi.org/10.35138/paspalum.v7i2.118
Yao, Y., Q. Dai, R. Gao, Y. Gan and X. Yi. 2021. Effects of rainfall intensity on runoff and nutrient loss of gently sloping farmland in a karst area of SW China. PLoS One 18:16(3):e0246505. https://dx.doi.org/10.1371/journal.pone.0246505