Application Of Liquid Organic Fertilizer Research Articles

Pakcoy's (Brassica rapa L.) Response to the Provision of Liquid Organic Fertilizer in Polybags

This study aimed to examine the effect of Liquid Organic Fertilizer (LOF) in increasing the growth and yield of pakcoy, as well as obtaining LOF concentrations that provided the best growth and yields of pakcoy plants. It was conducted at the Teaching and Research Farm, Faculty of Agriculture, University of Jambi, 35 asl. The study used a Randomized Block Design with one factor, namely various LOF concentrations: 0ml/l; 5ml/l; 10ml/l, 15ml/l. Each treatment was repeated five times. The results showed that LOF application was able to increase the growth and yield of pakcoy plants in the form of plant height (4.94%–24.49%), number of leaves (4.63%–9.26%), leaf area (18.17%–46.12%), dry weight (50.98%–94.90%), and plant fresh weight (50.46%–102.60%). The LOF concentration of 10ml/l provided the best pakcoy growth and yield. The results of this study have just been able to produce a fresh weight of pakcoy 26%–33% of the potential pakcoy yield.

Effectivity of liquid organic fertilizer on production of pakcoy (Brassica rapa L.)

The main objective of this research was to obtain the optimal concentration of Liquid Organic Fertilizer (LOF) from house waste against the growth and yield of pakcoy. This study used an experimental method with a single-factor randomized design group, with eight treatments. The treatments are: A0 (control), A1 (LOF 100 ml/L), A2 (LOF 200 ml/L), A3 (LOF 300 ml/L), A4 (LOF 400 ml/L), A5 (LOF 500 ml/L), A6 (LOF NASA 6 ml/L), A7 (NPK fertilizer 250 kg/ha). The treatments were repeated four times and tested by analysis of variance (ANOVA) and further tested with Duncan’s Multiple Range Test (DMRT) at 5% level. The results showed that the application of LOF from house waste significantly affected improving the growth and yield of pakcoy plants. The LOF concentration of 200 ml/L gave the highest contibution to the leaf area: 285 cm2 and fresh weight: 82 gram.

Effect of application liquid organic fertilizer Bio3 with some concentrations to carrot (Daucus carota L.) yield

Bio3 Liquid Organic Fertilizer is a liquid organic fertilizer made from fermented fruit waste with local activator JB3. This fertilizer was tested on carrot plants to determine the effect of giving several concentrations of POC Bio3 on carrot yields. The research was conducted in July-November 2022 in Tobu Village, South Central Timor District, East Nusa Tenggara Province, Indonesia. This study used a single factor randomized block design (RBD) consisting of 9 concentrations of liquid organic fertilizer (LOF) Bio3 (0, 5, 10, 15, 20, 25, 30, 35, 40 ml/L water) and 3 replications. The parameters studied were tuber diameter, tuber length, tuber wet weight per plot. The results obtained were that the application of Bio3 liquid organic fertilizer to carrot plants had a significant effect on tuber diameter (3.30 cm), tuber length (16.22 cm), tuber weight per plant (84.61 g) and tuber weight per plot (4,230 kg). Based on effectiveness, efficiency and results that are not significantly different, a concentration of 25 ml/L of liquid organic fertilizer Bio3 is the best concentration.

Dendrobium sp. subcultures with instant Vacin Went media against many concentrations of fruit waste liquid organic fertilizer plus

Orchids are ornamental plants in great demand by collectors and the public due to the varieties colors of Orchid flowers and the price. This study aims to determine the effect and obtain the concentration of the application of fruit waste liquid organic fertilizer plus on the growth and development of a Dendrobium sp. sub-culture on VW media in vitro. The research had been carried out from May to August 2022 at the Biotechnology Laboratory of Kupang State Agricultural Polytechnic. The study design used a single-factor complete randomized design consisting of six treatments and four replications. The tested factors were six level of concentrations of fruit waste liquid organic fertilizer plus instant VW media in vitro, which are: instant VW media; instant VW media + 2.5 ml/L; instant VW media + 5 ml/L; instant VW media + 7.5 ml/L; instant VW media + 10 ml/L; and instant VW media + 12.5 ml/L. The results showed that the best concentration of Fruit Waste Plus LOF for the growth of Dendrobium orchid explants is the treatment instant VW media + 7.5 ml/L LOF, which is shown by the time of bud emergence (10.75 days after planting), number of shoots (2.38), shoot height (3.5 mm), number of roots (1.38), and root length (2.5 mm).

Growth and production of purple eggplant (Solanum melongena L.) with application of chicken manure and liquid organic fertilizer of goat urine

It is feared that the continuous use of inorganic fertilizers at high doses could cause a decrease in soil fertility. Besides that, currently people tend to prefer organic plant products. Efforts that can be made to reduce the use of inorganic fertilizers are using liquid organic fertilizer goat urine and steps to improve soil quality require the application of manure. This study aims to determine the effect of the interaction of dosing chicken manure and the concentration of goat urine liquid organic fertilizer. This study used a factorial completely randomized design consisting of two factors, namely chicken manure with 3 dose levels of 10, 20, 30 t.ha-1 and liquid organic fertilizer (LOF) of goat urine with 3 concentration levels of 10, 20, 30%. The results showed that the interaction between chicken manure and goat urine liquid organic fertilizer did not provide an increase in all observation parameters. Applying several doses of chicken manure can increase plant height and stem diameter in purple eggplant plants with the best growth found at a dose of chicken manure 20 t.ha-1. Application of liquid organic fertilizer goat urine does not improve the entire parameter. Application of chicken manure dose of 20 t. ha-1 and concentration of 20% LOF showed the best growth and production of purple eggplant plants.

The Effect of Applying Liquid Organic Fertilizer Kasgot on the Growth and Weight of Kolesom Leaf Consumption (Talinum triangulare [Jacq.] Willd)

The purpose of the research was to determine the effect of kasgot liquid organic fertilizer on the growth and consumption weight of kolesom leaves (Talinum triangulare [Jacq.] Willd). The experiment was conducted in Babakan Jawa Village, Majalengka District, Majalengka Regency, from August to October. The land used for research has a clay texture. Rainfall at the research location is included in type C, which is rather wet. The research method used was a Randomized Complete Design (RCD). The treatment consisted of one factor with four replications. The factor in this study is the concentration of kasgot liquid organic fertilizer which consists of six treatment levels, namely: K1 (control/no treatment), K2 (5 ml l-1), K3 (10 ml l-1), K4 (15 ml l-1), K5 (20 ml l-1), K6 (25 ml l-1) all treatment were repeated 4 replication. Variables observed were plant height (cm), number of leaves (strands), stem diameter (mm), number of shoots per plant of upright leaves (strands), shoot weight per plant (g), total shoot weight (g). The results showed that the application of kasgot liquid organic fertilizer had a significant effect on the growth of kolesom plants, namely on the diameter of the stem at the age of 6 MSPT and the number of leaves at the age of 7 MSPT. The application of liquid organic fertilizer Kasgot K2 5 ml l-1 gave the best results on the diameter of the stem at the age of 6 MSPT and 5 20 ml l-1 gave the best results on the number of leaves at the age of 7 MSPT.

The Effect of Egg Shell and Banana Peel Organic Fertilizer on The Growth Of Green Spinach (Amaratus tricolor L.)

Long-term use of chemical fertilizers damages soil properties. Efforts to restore soil fertility by using liquid organic fertilizer are needed. Organic fertilizers from waste provide nutrition for plants while reducing environmental pollution. This study aims to analyze the effect of applying liquid organic fertilizer from banana peels, liquid organic fertilizer from egg shells, and the effect of the combination of liquid organic fertilizers. Two Way Anova test results with sig. a value <0.05 indicates that the POC of banana peel increased plant height, number of leaves, fresh weight and dry weight of green spinach. Eggshell POC increased wet weight and dry weight, while the combination of the two POC increased plant height and number of leaves, wet weight and dry weight of green spinach plants. This shows that the application of banana peel liquid organic fertilizer is more influential than the application of egg shell organic fertilizer.

Growth response of Meranti Liberoid coffee seedling to liquid organic fertilizer and dolomite application

Liberica coffee is a type of coffee that can grow in soils with low pH and low nutrients. One of the efforts to increase the strength of the coffee seedling is by improving the planting media, through organic fertilizers and ameliorants application. This study aimed to analyze the effect of liquid organic fertilizer (LOF) and dolomite on the growth of Meranti Liberoid 2 (LIM 2) coffee seedlings. This research was conducted at the Pakuwon Experimental Station, Sukabumi, from April 2021 to January 2022. The research design used was a factorial 2 factor with 3 replications. The first factor was the LOF concentration (0, 5, and 10%), and the second was the dolomite dose (0; 2.5; 5.0; 7.5; and 10 g seedling−1). The results showed that the highest seedling height, leaf, and root dry weight of LIM 2 coffee seedlings was achieved by dolomite treatment of 7.5 g seedling−1 without LOF. The use of LOF can be an alternative to the need for dolomite to increase the growth of LIM 2 coffee seedlings.

PENGARUH MEDIA TANAM DAN PEMBERIAN PUPUK ORGANIK CAIR TERHADAP PERTUMBUHAN DAN HASIL TANAMAN SELEDRI (Apium grafeolens L)

This study aims to determine the effect of planting media and application of liquid organic fertilizer on the growth and yield of celery plants. The research was carried out at the Field Laboratory Experimental Garden 1, Faculty of Agriculture, Halu Oleo University, Kendari, from November 2021 to January 2022. The study used a factorial randomized block design consisting of 2 factors. The first factor is the planting medium (M) which consists of 3 levels: Soil (M0), Soil + Manure = 2:1 (M1) and Soil + Rice Husk = 2:1 (M2). The second factor is liquid organic fertilizer (M2). P) which consisted of 3 levels: POC 0 ml L-1 (P0), POC 10 ml L-1 (P1) and POC 20 ml L-1 (P2). There were 9 treatment combinations and arranged into three groups, so there were 27 experimental units. The variables observed were plant height, number of leave and tillers, plant and root fresh weight, plant and root dry weight. The results showed that treatment of planting media, the application of liquid fertilizer and the interaction between the two treatments on the leaves of gamal had a very significant effect on all observed variables. The best interaction was obtained at the M0P2 interaction.

Application of Liquid Organic Fertilizer (LOF) From Vegetable Waste and NPK on the Growth and Results of Corn (Zea Mays L.)

Liquid Organic Fertilizer (LOF) and NPK fertilizer are fertilizers that are often used as additional nutrients in the soil to increase the productivity of agricultural products. This experiment aims to test the level of effectiveness and benefits of LOF on corn plants of the Paragon variety, and to provide a comparison between LOF and NPK fertilizer in the analysis of production and farming economics. This experiment was carried out from August to December 2022 at the Experimental Field of the Soil Fertility and Plant Nutrition Chemistry Laboratory, Department of Soil Science and Land Resources, Faculty of Agriculture, University of Padjadjaran Jatinangor, Sumedang Regency, West Java with an altitude of ± 750 meters above sea level . The experiment was carried out using the field trial method with a randomized block design (RBD) consisting of 6 treatments and repeated 4 times, namely 4 treatments with LOF doses, 1 treatment with recommended fertilizer and 1 control treatment. The results of the experiment showed that LOF treatment with NPK fertilizer had an effect on plant height, crown diameter, number of leaves, cob diameter, cob length, fresh and peeled cob weight, crop yield, and farm income. Based on the considerations of this experiment, LOF has met the requirements as a LOF that is suitable for use as a complementary nutrient supplement by combining single NPK fertilizers (Urea, Sp-36, and KCl). 1 treatment with recommended fertilizer and 1 control treatment. The results of the experiment showed that LOF treatment with NPK fertilizer had an effect on plant height, crown diameter, number of leaves, cob diameter, cob length, fresh and peeled cob weight, crop yield, and farm income. Based on the considerations of this experiment, LOF has met the requirements as a LOF that is suitable for use as a complementary nutrient supplement by combining single NPK fertilizers (Urea, Sp-36, and KCl). 1 treatment with recommended fertilizer and 1 control treatment. The results of the experiment showed that LOF treatment with NPK fertilizer had an effect on plant height, crown diameter, number of leaves, cob diameter, cob length, fresh and peeled cob weight, crop yield, and farm income. Based on the considerations of this experiment, LOF has met the requirements as a LOF that is suitable for use as a complementary nutrient supplement by combining single NPK fertilizers (Urea, Sp-36, and KCl).

RESPONS PERTUMBUHAN DAN PRODUKSI TANAMAN CABAI (CAPSICUM ANNUUM L.) YANG DIBERI PUPUK ORGANIK CAIR DAUN GAMAL DENGAN DOSIS YANG BERBEDA

This study aims to determine the level of treatment with liquid organic fertilizer on gamal leaves which gives the best effect on the growth and production of chili (Capsicum Annuum L) plants. This research was carried out at the Field Laboratory of Experimental Gardens II, Faculty of Agriculture, Halu Oleo University, Kendari. The study took place from December 2021 to February 2022. This study used a Randomized Block Design (RAK) which consisted of 5 levels of treatment, namely P0: No POC of gamal leaves; P1: POC of gamal leaves 200 ml L-1 tan water-1; P2: POC of gamal leaves 400 ml L-1 tan-1; P3 : POC of gamal leaves 600 ml L-1 tan-1; P4 : POC of gamal leaf 800 ml L-1 tan-1. Each treatment was repeated 4 times as a group so that 20 polybags were obtained. Each treatment used 3 polybags, overall using 60 polybags. The variables observed included plant height, number of leaves, stem diameter, leaf area. number of days of flowering and number of fruit. The results showed that there was an effect on the application of liquid organic fertilizer with Gamal leaves on liquid organic fertilizer of Gamal leaves gave the best effect on growth and production of large chili plants. P3: POC of gamal leaves 600 ml L-1 tan water-1.

Growth responsse of cacao seeds (Theobroma cacao L.) to the application of urea fertilizer and liquid organic fertilizer of gamal leaves

Tujuan penelitian untuk mengetahui pengaruh pemberian dosis pupuk Urea dan dosis pupuk organik cair daun gamal serta interaksi kedua perlakuan terhadap pertumbuhan bibit kakao (Theobroma cacao L.). Waktu penelitian dilaksanakan selama 3 bulan, terhitung mulai dari bulan Mei sampai dengan bulan Agustus 2021. Tempat penelitian di Kebun Percobaan Fakultas Pertanian Universitas Widya Gama Mahakam Samarinda.
 Metode penelitian menggunakan Rancangan Acak Kelompok (RAK) dengan percobaan faktorial 4 x 4 yang terdiri dari 3 ulangan. Faktor pertama adalah Pupuk Urea (U) yang terdiri dari 4 taraf yaitu U0 (kontrol), U1 (3 g/polybag), U2 (6 g/polybag), U3 (9 g/polybag). Faktor kedua adalah POC Daun Gamal (G) yang terdiri dari 4 taraf yaitu G0 (kontrol), G1 (200 ml/polybag), G2 (250 ml/polybag), G3 (300 ml/polybag).
 Variabel pengamatan yaitu tinggi tanaman, jumlah daun dan diameter batang. Hasil penelitian menunjukan bahwa dosis pupuk Urea dan POC daun gamal berpengaruh nyata pada interaksi U2G3 (6 g dan 300 ml/polybag) untuk parameter tinggi tanaman dan pada interaksi U3G3 (9 g dan 300 ml/polybag) memberikan pengaruh sangat nyata terhadap parameter jumlah daun dan diameter batang.
 
 Kata Kunci : Gliricidia, Urea, Theobroma

Effect of Concentration Variation of Liquid Organic Fertilizer Application on the Growth of Mustard Plants

This study aimed to determine the effect of giving Infarm POC concentration variations on the growth of green mustard (Brassica juncea L). The research employed a completely randomized design (CRD) or randomized block design with 6 treatments and 5 replications, resulting in a total of 30 experimental units. The data collection method and mechanism used involved implementing a completely randomized design (CRD) with 6 types of treatment and 5 replications, leading to the cultivation of 30 mustard plants with POC concentrations ranging from 2% to 10%. The findings revealed that the application of POC fertilizer to mustard plants resulted in increased plant height, leaf count, and resistance to leaf pests. Notably, the POC concentration of 6% exhibited the most significant improvements in plant height and leaf count. However, to gain a more comprehensive understanding of the effectiveness of this POC, further research is necessary. It is recommended to extend the duration of the study until harvest to assess the weight and quality of the mustard greens, thereby providing more conclusive insights

Effect of Concentration of Liquid Vermicompost Fertilizer and ZPT Cytokinin on Growth and Yield oF Mustard Greens (Brassica Sinesis L)

This study aims to determine the concentration of liquid organic fertilizer vermicompost and ZPT cytokinins on the growth and yield of mustard greens (Brassica sinesis L). This research was conducted in Mojoruntut Village, Krembung District, Sidoarjo Regency from December 2022 to January 2023. This research method was carried out using a factorial randomized block design (RAK) consisting of 2 factors. The data obtained were processed using ANOVA, if there were differences between the treatments, the 5% BNJ test would be continued. The variables observed were plant height, number of leaves, fresh weight, dry weight, root length, and harvest index. Based on the results of the study it can be concluded that the application of liquid organic fertilizer from pineapple peel waste has a significant effect on the observation variables of plant height, number of leaves, fresh weight, dry weight and root length. While not significantly different in the harvest index observation variable. The optimal administration of liquid organic vermicompost fertilizer and cytokinin ZPT is with a concentration of 25 ml/l (P4) and 2ml/l (Z1).

Effect of human urine enriched with Efficient Microorganisms on the yield of potato (Solanum tuberosum L.) Peruanita variety

This research was conducted in the community of Tranca Pampa- District of San Marcos de Rocchac, province of Tayacaja Department of Huancavelica, Peru; in the agricultural campaign 2019- 2020, with the objective of evaluating the effect of human urine enriched with efficient microorganisms on the yield of potato, peruanita variety. A randomized complete block experimental design with three replications was used to test the effect of 5 liters of urine plus EM, 10 liters of urine plus EM, 15 liters of urine plus EM and a witness without application. Plant height at 120 and 210 days, number, and weight of tubers per plant at harvest were evaluated. Analysis of variance and Duncan's multiple comparison tests of means at =0.05 were performed. The best yields were obtained with the application of 15 liters of urine plus EM (75.53 t ha-1) and 10 liters of human urine plus EM (73.48 t ha-1), significantly exceeding the other treatments; it is concluded that the application of liquid organic fertilizer based on human urine plus effective microorganisms contributes to a significant and favorable increase in the yield of the potato crop, Peruvian variety.

Effect of Application of Liquid Organic Fertilizer of Pineapple Peel Waste on Growth and Production of Red Lettuce Plants (Lactuca sativa var. Crispa)

This study aims to determine the effect of giving the optimal concentration of pineapple peel liquid organic fertilizer on the growth and production of red lettuce plants (Lactuca sativa var. Crispa)". This research was conducted in Modong Village, Tulangan Subdistrict, Sidoarjo Regency and continued at the Agrotechnology Laboratory of Muhammadiyah Sidoarjo University. The research was conducted from December 2022 to January 2023. This study uses a Randomized Group Design (RGD) with a single factor, namely the concentration of liquid organic fertilizer application of pineapple peel waste. The concentrations of liquid organic fertilizer of pineapple peel waste were 100 cc/l; 150 cc/l; 200 cc/l; 250 cc/l; 300 cc/l; 350 cc/l; 400 cc/l. The data obtained were processed using ANOVA, if there is a difference between treatments then it will be followed by 5% tukey test. The variables observed were plant height, number of leaves, wet weight, dry weight, root length, and harvest index. Based on the results of the study, it can be concluded that the application of liquid organic fertilizer pineapple peel waste significantly affects the observation variables of plant height, number of leaves, wet weight, dry weight and root length. While it is not significantly different on the observation variable of harvest index. The optimal application of liquid organic fertilizer pineapple peel waste is with a concentration of 250 cc/l (N4).

The Effect of Organic Liquid Fertilizer Chicken Eggshell with Onion Skin Waste For The Growth and Yield of Basil Plant (Ocimum basilium L.)

This study aims to determine the effect of applying liquid organic fertilizer from chicken eggshell and onion skin waste for the growth and yield of Basil plants which were carried out from May to June 2023, using a single factor Randomized Block Design (RBD) with 4 experimental levels, namely D0: Without POC, D1: (100 ml POC + 1 L Water), D2: (200 ml POC + 1 L Water), D3: (300 ml POC + 1 L Water), D4: (400 ml POC + 1 L Water ) which was repeated 3 times. The variables observed were plant height, number of leaves, number of branches, stem diameter, flower weight, leaf weight and plant weight. Then analyzed the variance using ANOVA to determine the effect of giving POC which will then be carried out by a BNJ follow-up test. The results of the study showed that the application of liquid organic fertilizer from chicken eggshell and onion skin waste in D2 treatment with a dose of 200 ml POC + 1 L of water gave the highest yields of basil plants with the highest number of leaves, number of branches and leaf weight.

Production of Shallots (Allium ascalonicum L. var. bauji) with The Provision of Liquid Organic Fertilizer Mixed Pineaplle Peel Waste (Ananas comosus L.) and Water Hyacinth (Eichornia crassipes L.)

Red onion is a rural commodity developed by people in West Kalimantan. The development of shallots in West Kalimantan is mostly completed in the formation of media in the form of peat soil with physical and substantive qualities that are unfit for the production of shallots. The application of Liquid Organic Fertilizer (LOF) is one method used to overcome the limitations of shallot cultivation on peatlands. The aim of the study was to determine the production of shallots of the Bauji variety influenced by a mixture of liquid organic fertilizer containing waste pineapple skin and water hyacinth. The study used an experimental method with a completely randomized design (CRD) and there were seven treatment standards for liquid organic fertilizer. The results of the study found that liquid organic fertilizer mixed with water hyacinth waste and pineapple peel had an effect on tuber wet weight, tuber dry weight, tuber number and tuber diameter. The best concentration is on. LOF treatment of 50 ml/L to increase the production of shallots of the bauji variety planted on peatlands in West Kalimantan. This treatment resulted in the highest tuber wet weight value of 55.07 grams and tuber dry weight of 15.22 grams, the number of tubers was 8 pieces and the tuber diameter was 2.44 cm.

Pengaruh Dosis dan Frekuensi Pemberian Bahan Organik Cair Urine Kelinci terhadap Pertumbuhan dan Hasil Bayam Merah (Amaranthus tricolor L.)

Increasing the production of red spinach can be done through fertilization. This research aimed to know the effect of dose, frequency application, and combination of dose and frequency application of liquid organic fertilizer from rabbit's urine on the growth and yield of red spinach plants. The research was conducted from December 2020 to February 2021 at the screen house in Melung Village, Kedung Banteng District, Banyumas Regency and the Laboratory of Agronomy and Horticulture, Faculty of Agriculture, Jenderal Soedirman University. The research was carried out using polybag experiment in a screen house with 3 x 3 factorial treatment plus control. The experimental design was a Completely Randomized Block Design which resulted in 9 factorial and control treatments, repeated 3 times so that there were 30 experimental units. The first factor was the dose of liquid organic fertilizer from rabbit urine, which consisted of 3 levels, namely 150, 300, and 450 ml/plant. The second factor is the frequency of fertilization time which consists of 3 levels, that is 1x application (5dap), 3x application (5, 10, and 15 dap), and 5x application (5, 10, 15, 20 and 25 dap). Observation variables included plant height, number of leaves, leaf area, fresh plant weight, dry plant weight, fresh root weight, dry root weight, fresh crown weight and waste index. The data obtained were analyzed using the F test. If there was variance, the data was analyzed using the Dunnett test at a 95% confidence level. The dose of 300 ml/plant of liquid organic fertilizer of rabbit urine affected the growth of red spinach seen in the variables of fresh plant weight, dry plant weight, number of leaves, leaf area, and plant height. In addition, the fresh crown weight variable shows the effect on the yield of red spinach. The frequency of 5 times giving liquid organic fertilizer from rabbit urine affects the yield of red spinach seen in the fresh crown weight variable. A good combination was obtained between a dose of 300 ml/plant and a frequency of 5x administration of LOM rabbit urine on the growth of red spinach seen in the variable leaf area and fresh crown weight.

Increasing The Growth And Yield of Green Lettuce (Lactuca sativa L.) With Fish Waste Liquid Organic Fertilizer

This study aims to determine the effect of applying liquid organic fertilizer from fish waste to the growth and yield of green lettuce. The research was conducted in Modong, Tulangan District, from December to January 2023. This study used a single factor randomized block design (CRD), namely fish waste liquid organic fertilizer consisting of 7 treatments, namely 10 ml/l; 20ml/l; 30ml/l; 40ml/l; 50ml/l; 60ml/l; and 70 ml/l. The data obtained were processed using Analysis of Variance (ANOVA), if there were differences between treatments, the 5% tukey test would be continued. The variables observed were plant height, number of leaves, fresh weight, dry weight, root length, and harvest index. It can be concluded that the effect of applying fish waste liquid organic fertilizer to green lettuce plants had a significant effect on plant height parameters with the highest average yield in the 50 ml/l treatment of 20.73, the number of leaves with the highest average yield in the 50 ml/l treatment of 4.00, the wet weight with the highest average yield in the 50 ml/l treatment was 44.30 grams, the dry weight with the yield of 3.90 grams, the root length with the highest average yield in the treatment 50 ml/l was 11.33, and the harvest index with the highest average yield was in the 50 ml/l treatment of 0.94. The results showed that the optimal application of fish waste liquid organic fertilizer on the growth of green lettuce plants was at a concentration of 50 ml/l.