UTILIZATION OF LIQUID ORGANIC FERTILIZER TO BREAK SEED DORMANCY AND GROWTH OF SUGAR APPLE (Annona squamosa L.) SAPLINGS

This study aims to improve the quality of cow manure liquid organic fertilizer from several bioactivators and to determine the effect of liquid organic fertilizer on the growth and yield of shallot (Allium ascalonicum L.) plants. This research was conducted on March 11 2022 – November 29 2022 at the cultivation land of Lamongan Regency. The research was arranged using Factorial RBD consisting of two levels and three replications. The first level is the types of bioactivators which consist of 5 types, namely without bioactivators (B0), Em4 (B1), BRE4 (B2), PAZ's (B3), and Mol rumen (B4). The second level is the concentration of liquid organic fertilizer to be tested on plants which consists of 4 concentrations of only basic fertilizer (K0), 20 ml/liter (K1), 40 ml/liter (K2), and 60 ml/liter (K3). Research data can be analyzed by ANOVA followed by Duncan's Multiple Range test at 5% level. The experimental results showed that a single treatment with the type of bioactivator helped improve the quality of liquid organic fertilizer for cow dung because the total N and pH parameters met the quality of the Minister of Agriculture. Single treatment concentration of cow manure liquid organic fertilizer showed a highly significant different effect on the variables observed in plant height, number of leaves, root volume, tuber diameter, and tuber dry weight. The variable number of tubers showed significantly different results in a single treatment, the concentration of cow dung liquid organic fertilizer and the fresh weight of tubers showed no significant differences. The best concentration of liquid organic fertilizer for cow dung was 60 ml/liter with the highest value at plant height 15.81 cm, number of leaves 10-11 leaves, root volume 10.96 ml, tuber diameter 1.86 cm, tuber number 38-38 tubers/plot, and tuber dry weight 17.89 grams. A significant correlation was also shown between fresh weight and tuber diameter because the value of r count 0.5237 was greater than r table 0.2144.

This research is to study the effect of concentration and various types of liquid organic fertilizer on yield of Edamame soybeans (Glycine max (L.) Merr.) The research conducted in September 2021 until January 2022 in Sidorejo Village, Bandongan District, Magelang Regency with an altitude of 357 m. The research was conducted with a factorial experiment (4 x 3) arranged in a completely randomized block design with three replications. The first factor is concentration of liquid organic fertilizer 0 ml/l, 10 ml/l, 20 ml/l and 30 ml/l. The second factor is liquid organic fertilizer namely liquid organic fertilizer Nasa, Super Garden and Cow Blood Waste. The results show that the application of liquid organic fertilizer with concentration of 30 ml/l still showed a significant effect on plant height, but the difference in concentration didn’t show a significant effect in the number of filled pods each plants, weight of filled pods each plant, number of fresh seeds each plants, fresh seed weight each plant, fresh soybean seed protein content, and weight 100 dry seeds stored. Liquid organic fertilizer from Cow Blood Waste is able to produce the highest plants height compared to liquid organic fertilizer from Nasa and Super Garden but not significantly different on other parameters. There was no interaction between concentration and type of liquid organik fertilizer for all observed parameters.Keywords: concentration, Edamame soybean, liquid organic fetilizer.

This study aimed to determine the best concentration of liquid organic fertilizer on the growth and production of three chili varieties. An experiment was conducted with a Split Plot Design. The first factor was the seed variety, namely the variety of Dewata, Bara, and Maruti. The second factor was the concentration of SNN liquid organic fertilizer with a concentration of 0 cc L−1, 3 cc L−1, 4 cc L-1, 5 cc L−1. The results showed that the Liquid Organic Fertilizer treatment affected several observed parameters. The Maruti variety had the highest plant height of 59.39 cm and was significantly different from the other treatments, the flowering age parameter also showed that the Maruti variety showed an average the average age of the fastest flowering was at age 52.08 day after planting and significantly different in other treatments. The fruit length parameter showed that Bara variety has the longest fruit length (1.48 cm) and was significantly different from other treatments. There was an interaction between liquid organic fertilizer with seed varieties on the parameters of production with the highest production per hectare was achieved by the dose of 5 cc L−1 liquid fertilizer and Maruti varieties. The value was 1 ton per hectare.

In Indonesia, kailan plants are classified as new plants but have quite large prospects, however, kailan production in Indonesia is still relatively low and is not comparable to the increasing demand for kailan and the availability of agricultural land which is still limited. The use of liquid organic fertilizer with the application of a substrate hydroponic cultivation system is a good alternative in a cultivation system to increase yields in terms of quality and quantity. It is necessary to do research on the effect of the right type and concentration of liquid organic fertilizer for kailan plants. This study aims to determine the effect of the right type of liquid organic fertilizer and the concentration of good liquid organic fertilizer on the yield of kailan plants. The research was conducted in August-October 2022 which took place in Patrang, Jember Regency. This study used the RAL method (Completely Randomized Design) which was arranged in a factorial manner consisting of 2 treatment factors which were applied to kailan plants which were repeated 3 times. The first factor is the type of liquid organic fertilizer (P), which consists of three levels, namely: Rabbit Urine (P1), Nasa (P2), and Cow Biourine (P3). The second factor was the concentration of liquid organic fertilizer (K) which consisted of 4 levels, without POC treatment (K0); 10 ml/l water (K1); 20 ml/l water (K2); 30 ml/l water (K3); 40 ml/l water (K4). The data obtained will be analyzed using analysis of variance (ANOVA). Treatments with significantly different effects were further analyzed using Duncan's test at the 5% level. Based on the data and discussion of the research that has been done, it can be concluded that the best type of liquid organic fertilizer concentration treatment is the Nasa liquid organic fertilizer type treatment, while the more efficient liquid organic fertilizer concentration treatment used to be applied in the kailan cultivation system is the kailan plant treatment. concentration of liquid organic fertilizer 30ml/L. There is an interaction between the types of liquid organic fertilizer treatment at the concentration level of liquid organic fertilizer on the plant wet weight parameter.

Low production of soybean caused by reduction of arable land due inorganic fertilizer contionously. Therefore, it should be done improvements by used liquid organic fertilizer. This research was conducted in Desa Tanjung Anom, Medan with altitude ± 25 meters above sea surface began on September to November 2015. This research used factorial randomized block design with two factors. The first factor was concentration liquid organic fertilizer (20; 40; 60 and 80 ml/L water) and the second factor was application methods liquid organic fertilizer with (spray and flush). Variable observed was total leaf area, shoot dry weight, root dry weight, dry weight of seeds per plant, dry weight of 100 seeds. The result of this research showed that concentration of liquid organic fertilizer of 40 ml increased the yield of soybean production in almost all the variable observation. Application methods of liquid organic fertilizer by flushed increased the yield of soybean production in almost all the variable observation. Interaction of concentration and application method of liquid organic fertilizer increased the yield of soybean production with the best treatment combination in concentration of 40 ml and by flushed. Key words: soybean, liquid organic fertilizer, concentration, application methods

The application of a wed-based liquid organic fertilizer can increase the production of black soybeans (Glycine Max L. Merril). The study aimed to identify the best source and dose of liquid organic fertilizer (LOF) for black soybean growth and yield. The researchers used a three-times-repeated Completely Randomized Design (CRD) using a factorial layout. The first factor was the source of LOF, which included Siam weed (Chromolaena odorata, L.), Goat weed (Ageratum conyzoides L.), and yellow creeping daisy (Wedelia trilobata L.). The second factor was the concentration of weed-based LOF, consisted of water (control treatment); 12 ml/L; 16 ml/L; 20 ml/L. The results of the study show, weed-based LOF, namely LOF Yellow creeping daisy, Goat weed, and Siam weed, resulted in no significant difference in the growth and yield of the black soybean. Except for the variables of root fresh weight and number of pods per plant, the variation in concentration of weed-based liquid organic fertilizer had no significant effect on plant growth and yield.

One of the efforts to increase the production of chickpea plants to meet market needs is to optimally utilize the waste of Moringa leaves by converting Moringa leaves into liquid organic fertilizer so that it is easier and more practical to apply and easily absorbed by plants. Liquid organic fertilizer plays a role in improving the physical, chemical and biological properties of the soil, which can increase the production of upright bean plants. This study aims to determine the effect of liquid organic fertilizer (POC) of Moringa leaves with different concentrations and to determine the most effective concentration of liquid organic fertilizer (POC) on the growth of green beans (Phaseolus vulgaris L.). The method used is an experimental method with a completely randomized design (CRD). The treatment consisted of a concentration of 16% chicken manure (as a control), POC concentrations of 60%, 65%, 70%, 75% and 80%. The results showed that there was an effect of different concentrations of liquid organic fertilizer (POC) from Moringa oleifera L. on the growth of plant height, number of leaves and wet weight in bean plants (Phaseolus vulgaris L.). The most effective concentration of liquid organic fertilizer (POC) from Moringa leaves is at a concentration of 80% with an average plant height of 41.2 cm, an average number of leaves of 15.25 leaves and an average wet weight of 3.98 grams. number of leaves and fresh weight on chickpea plants (Phaseolus vulgaris L.). The most effective concentration of liquid organic fertilizer (POC) from Moringa leaves is at a concentration of 80% with an average plant height of 41.2 cm, an average number of leaves of 15.25 leaves and an average wet weight of 3.98 grams. number of leaves and fresh weight on chickpea plants (Phaseolus vulgaris L.). The most effective concentration of liquid organic fertilizer (POC) from Moringa leaves is at a concentration of 80% with an average plant height of 41.2 cm, an average number of leaves of 15.25 leaves and an average wet weight of 3.98 grams.

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).

Abstract. Tomatoes are one type of horticultural plant that has its own charm because it has high economic value and is very promising. One of the efforts to increase the yield potential of tomato plants is by applying fertilizer. Fertilizer is a material added to growing media or plants to meet the nutritional needs of the plant for good growth. In addition to fertilization, increasing tomato production can also be increased by using appropriate varieties. The purpose of this study was to determine the concentration of liquid organic fertilizer and banana weevil species and the interaction of these two factors on tomato growth and yield. The study was conducted from August to December 2022 in Lampedaya village, Darussalam sub-district, Aceh Besar district and the Laboratory of Seed Science and Technology, Faculty of Agriculture, Syiah Kuala University. This study used a 4x3 factorial randomized block design (RBD) with 3 replications, resulting in 12 treatment combinations and 36 experimental units. There are 2 factors studied, namely the concentration of banana weevil liquid organic fertilizer and tomato varieties. The first factor is the concentration of banana weevil liquid organic fertilizer (P) consisting of 4 levels, namely P0 = Control, P1 = 25%, P2 = 50%, P3 = 75% and the second factor is variety (V) which consists of 2 levels, namely V1 = Servo F1, V2= Karina F1, V3= Jewel F1. The results showed that the POC of banana weevil had a very significant effect on fruit weight per fruit and had a significant effect on the number of fruit bunches. Tomato plant growth and yield were optimal at a banana weevil POC concentration of 75%. Tomato varieties have a very significant impact on plant height, flowering age, fruit weight per plant, number of fruits per bunch, fruit weight per fruit, yield potential of 30 HST and 45 HST. The tomato plant growth and yield are best with Servo F1 variety. There was a very significant interaction between banana weevil POC concentrations and several at 45 HST the highest was obtained in a combination of 50% concentration with Karina F1 variety. Keywords: Banana weevil POC concentration, varieties, tomatoes varieties on higher fruit weight obtained in a combination of 75% concentration with the Permata F1 variety, there was a significant interaction between banana weevil POC concentrations and several varieties on stem diameter.

Pakcoy (Brassica rapa L.) is one of the important and popular vegetable crops in Indonesia. City development and massive urbanization have resulted in the shrinking of agricultural land in urban areas. Home gardens have great potential if managed optimally and planned. Therefore, the concept of urban farming with the vertical farming method can be a solution. This study aimed to determine the optimal composition of planting media and liquid organic fertilizer (LOF) concentration for the growth and production of pakcoy plants. This study used a completely randomized design (CRD) with two factors. The first factor was the composition of the planting medium, which consisted of three levels: soil, compost, and goat manure with a ratio of 1:1:1, 1:1:2, and 1:2:1. The second factor was the concentration of LOF and urea, which consisted of four levels: 1 gram urea, 2 ml/liter water, 4 ml/liter water, and 6 ml/liter water. The results of the study showed that the combination of planting medium composition and LOF concentration had an effect on all observation parameters. The combination of planting medium composition 1:1:2 and LOF concentration of 4 ml/liter water produced the best results for all observation parameters, namely plant height, number of leaves, total fresh weight, fresh head weight, fresh root weight, and plant dry weight. Key words : Pakcoy mustard, verticulture, media composition, concentration, LOF

The study aims to determine the concentration and the appropriate frequency of biomi liquid organic fertilizer application for the growth and yield of okra plants. This experiment was a factorial experiment designed using a Randomized-group Design, which consisted of two treatments, comprising the concentration of liquid organic biomi fertilizer (C) and frequency of application (F). The results of the data analysis showed that the concentration of liquid organic fertilizer biomi (C) had a significant effect (P <0.05) on the maximum number of leaves per plant and had no significant effect (P≥0.05) on other variables. Meanwhile, the treatment of application frequency (F) and interaction (CxF) had no significant effect (P≥0.05) on all observed variables. The highest fresh weight of fruit per plant was found in the concentration of biomi liquid organic fertilizer 5 ml.l-1, which is 300.93 g, which increased by 4.55% compared with the lowest weight obtained at a concentration of 2.5 ml.l-1 is 287.83, although it is not significantly different from other concentrations. The frequency of application (3 times) is able to give the highest fresh weight of fruit per plant that is 299.14 g, which also experienced an increase of 1.99% and 3.69% when compared to the that of twice administration that is only 293.28 g and the lowest frequency of 4 times, was 288.48 g.

[VEGETATIVE GROWTH OF GRAFTING SEEDLINGS OF GERGA ORANGE IN DIFFERENT CONCENTRATIONS OF LIQUID ORGANIC FERTILIZER]. This study aims to examine explain the effect of gamal leaf liquid organic fertilizer dosage, the way of application of gamal leaf liquid organic fertilizer, and the interaction between treatments on the growth of citrus plants. This research was conducted from August to December 2017 at the Greenhouse of the Faculty of Agriculture, University of Bengkulu. This research was carried out using a Randomized Complete Block Design using 2 factors. The first factor is the way the application of gamal leaf liquid organic fertilizer is sprayed on the leaves and watered onto the ground. The second factor is the concentration of gamal leaf liquid organic fertilizer which consists of control, 25%, 50%, 75% and 100%. The results showed that application of liquid organic fertilizer only gave effect to the number of branches. The 50% gamal leaf liquid organic fertilizer concentration was able to increase the number of branches of gerga orange seedlings by an average of 1.04 branches.

This study aims to determine the effect of concentration and frequency of liquid organic fertilizer on the growth and production of maize. This research started in August 2021 until November 2021. This study used a two-factor randomized block design (RAK). The first factor is the concentration of liquid organic fertilizer which consists of 3 levels, namely, without POC, 2 g/l water, 4 g/l water. The second factor is the frequency of application of liquid organic fertilizer which consists of 3 levels, namely, once a week, every 2 weeks, and every 3 weeks. Each combination was repeated 3 times so that there were 27 experimental units, the number of plant samples per plot was 5 plants. Parameters observed in this study consisted of plant height, number of leaves, male flowering age 50%, female flowering age 50%, length of ear, diameter of ear, weight of seeds per ear, production of cobs per plot, weight of 100 seeds, weight of seeds per plot and production seeds per hectare. The results of this study showed that the application of liquid organic fertilizer concentration of 4 g/l water had a good effect on the parameters of plant height, ear length, ear diameter and seed weight per ear, seed weight per plot and seed production per hectare. The frequency of giving liquid organic fertilizer once a week has a good effect on the parameters of seed weight per cob. The interaction between the application of liquid organic fertilizer concentration of 4 g/l of water and the frequency of once a week has a good effect on plant height. The suggestion of this research is to use liquid organic fertilizer with a concentration of 4 g/l of water and a frequency of once a week in the cultivation of corn.

Liquid Organic Fertilizer (LOF) obtained of vermicomposting processis an alternative organic fertilizer that has the potential to enhance sustainable plant growth. This study aims to investigate the effects of liquid organic fertilizer vermicompost on the vegetative growth of selected lfruity plant species, as okra (Abelmoschus esculentus) eggplant (Solanum melongena), and white radish (Raphanus sativus). The research was conducted at the Integrated Organic Farm and the Organic Laboratory of the Malaysian Agriculture Research and Development Institute (MARDI) in Serdang, Selangor, Malaysia, during September 2024. The study was carried out in two phases: field trials and laboratory tests. The field trial used a non-factorial Randomized Block Design (RBD) with four treatments, each replicated three times. The treatments of LOF vermicompost were as follows: V1 = 25% LOF; V2 = 50% LOF; V3 = 75% LOF; and V4 = 100% LOF. The laboratory tests utilized a non-factorial Completely Randomized Design (CRD) with eleven treatments, also replicated three times. The treatments were: V0 = Control (no treatment); V1 = 10% LOF; V2 = 20% LOF; V3 = 30% LOF; V4 = 40% LOF; V5 = 50% LOF; V6 = 60% LOF; V7 = 70% LOF; V8 = 80% LOF; V9 = 90% LOF; V10 = 100% LOF. The results indicated that the concentration of liquid organic fertilizer (LOF) vermicompost did not significantly affect the time of plumule emergence, the number of leaves, the fresh weight, and the dry weight in okra, eggplant, and radish. However, a significant effect was observed on plant height growth in the seedling trays. The study showed no significant differences in responses to the concentrations of LOF vermicompost among the three seed types. Nonetheless, white radish (R. sativus) exhibited better growth potential, particularly in plant height in the seedling trays. The concentration of LOF vermicompost did not significantly influence the time of plumule emergence, the number of leaves, and the dry weight in okra, eggplant, and radish. However, significant effects were observed on plant height and fresh weight in the laboratory. Overall, radish (R. sativus) demonstrated the best potential compared to okra and eggplant, especially regarding plant height and fresh weight in the laboratory.

Solid organic fertilizing for organically sweet corn production should be combined with foliar application to improve fertilizing effectiveness. Each sweet corn variety had different response to particular liquid organic fertilizer (LOF). This experiment aimed to determine growth and yields of three sweet corn varieties to local-based LOF was conducted at CAPS research station (950 m above sea level) from March to June 2015, arranged in a factorial completely randomized block design with three replicates. The first factor was three sweet corn varieties, i.e. Talenta, Jambore and Asian Honey, and the second factor was five LOF concentrations, i.e. 0, 25, 50, 75, and 100 ppm, respectively. Result indicated that sweet corn varieties significantly affected plant height, plant leaf-area, root fresh-weight, weight of green ears, weight of dehusk ears, but did not affect diameter of dehusk ear and shoot fresh-weight. LOF concentrations did not affect all observed parameters. So did the interaction between varieties and LOF concentrations, except on shoot fresh-weight. Asian Honey variety had the highest plant height, plant leaf-area, root fresh-weight, weight of green ears, weight of dehusk ears. There were no different in plant diameter and shoot fresh weight among the tested varieties. Further research should be focused on the use of higher concentration of local-based LOF to provide effective complementary organic fertilizing in sweet corn production