scholarly journals The Study of Liquid Fertilizer from Ground Coffee

2021 ◽  
Vol 6 (2) ◽  
pp. 111
Author(s):  
Putri Annisa Febrian ◽  
Yunita Ismail Masjud
Keyword(s):  
Organic Fertilizer ◽  
Chemical Parameter ◽  
Liquid Fertilizer ◽  
Coffee Ground ◽  
The Republic ◽  
Ministerial Decree ◽  
Nitrogen Phosphorus ◽  
Standard Regulation ◽  
Ground Coffee

<span lang="EN-US">Nowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing waste along coffee production, one of them is coffee ground. Coffee ground </span><span lang="EN-GB">has toxic properties to the environment such as caffeine, tannins, and polyphenols. While other chemicals contain on coffee ground are 2.28% nitrogen, 0.06% phosphorus, 0.6% potassium, which means has a good impact to the soil. In existing condition, coffee gr<span lang="EN-US">Nowadays, coffee is one of needs among metropolitan people. This lifestyle impact to increasing waste along coffee production, one of them is coffee ground. Coffee ground </span><span lang="EN-GB">has toxic properties to the environment such as caffeine, tannins, and polyphenols. While other chemicals contain on coffee ground are 2.28% nitrogen, 0.06% phosphorus, 0.6% potassium, which means has a good impact to the soil. In existing condition, coffee ground is commonly used to, biodiesel and bioethanol or by direct used to the soil. The processing of coffee ground to be liquid organic fertilizer by using bio-activator are considered to substitute the direct used, it will improve the quality of soil. </span><strong><span lang="IN">Objectives:</span><span lang="IN"> </span></strong><span lang="EN-US">The objective of this research is to study of liquid fertilizer from coffee ground, whether comply or not to the standard regulation </span><span lang="EN-GB">Ministerial Decree of Agriculture of the Republic of Indonesia Number 261/2019</span><span lang="EN-US">.</span><span lang="EN-US"> </span><strong><span lang="IN">Method and results:</span></strong><span lang="IN"> </span><span lang="EN-US">This research use a coffee ground from <em>arabica</em> and <em>robusta</em> coffee and applied 2(two) different dilution by repeated 2x2 on one time </span><span lang="EN-US">by using EM4 as bio-activator.  The pH and temperature for 4 experiment measured daily and has an average on 4.8 and 31-degree celcius for 10 days. Nitrogen, Phosphorus, and phosphor measured in the end of experiment has average results on 0.18, 0.17, 0.04, sequentially. </span><strong><span lang="IN">Conclusion:</span></strong><span lang="IN"> </span><span lang="EN-US">The result for chemical parameter; Nitrogen, Phosphorus, and phosphor has not comply to the standard of liquid organic fertilizer by Indonesia Government.</span>ound is commonly used to, biodiesel and bioethanol or by direct used to the soil. The processing of coffee ground to be liquid organic fertilizer by using bio-activator are considered to substitute the direct used, it will improve the quality of soil. </span><strong><span lang="IN">Objectives:</span><span lang="IN"> </span></strong><span lang="EN-US">The objective of this research is to study of liquid fertilizer from coffee ground, whether comply or not to the standard regulation </span><span lang="EN-GB">Ministerial Decree of Agriculture of the Republic of Indonesia Number 261/2019</span><span lang="EN-US">.</span><span lang="EN-US"> </span><strong><span lang="IN">Method and results:</span></strong><span lang="IN"> </span><span lang="EN-US">This research use a coffee ground from <em>arabica</em> and <em>robusta</em> coffee and applied 2(two) different dilution by repeated 2x2 on one time </span><span lang="EN-US">by using EM4 as bio-activator.  The pH and temperature for 4 experiment measured daily and has an average on 4.8 and 31-degree celcius for 10 days. Nitrogen, Phosphorus, and phosphor measured in the end of experiment has average results on 0.18, 0.17, 0.04, sequentially. </span><strong><span lang="IN">Conclusion:</span></strong><span lang="IN"> </span><span lang="EN-US">The result for chemical parameter; Nitrogen, Phosphorus, and phosphor has not comply to the standard of liquid organic fertilizer by Indonesia Government.</span>

scholarly journals Increase In Macro Nutrients By Adding Banana Waste To Liquid Organic Fertilizer

2021 ◽  
Vol 7 (3) ◽  
Author(s):  
Hendrawani Hendrawani ◽  
Husnul Hatimah ◽  
Hulyadi Hulyadi
Keyword(s):  
Organic Waste ◽  
Phosphorus Content ◽  
Organic Fertilizer ◽  
Quality Standard ◽  
Organic Fertilizers ◽  
Fermentation Time ◽  
Liquid Fertilizer ◽  
Vis Spectroscopy ◽  
Macro Nutrients

Liquid organic fertilizer is a solution from the fermentation of organic materials by involving microorganisms as a destructor of macromolecular compounds into minerals that are easily absorbed by plants. The quality of organic fertilizers is the main ingredient to get productive plants. The quality of organic fertilizer is determined by the concentration of macro nutrients such as nitrogen (N), potassium (K), and phosphorus. Getting high amounts of macronutrients fertilized organically is not easy. Macro-nutrients in organic waste with high concentrations are very difficult to obtain because each organic waste does not have all three macro-nutrients simultaneously. It takes a combination of organic waste to increase the concentration of macro nutrients in organic fertilizers. The combination of tofu whey with banana waste is one technique to obtain organic fertilizers that are high in phosphorus content. This study aims to obtain the effect and conditions of fermentation on the addition of mass of banana waste to produce optimum levels of phosphorus (P) in liquid fertilizer of tofu waste. The type of research used is pre-experimental research. The design of this study used a completely randomized design (CRD) with two factors, namely the first factor was the mass of banana waste (X) (X1 = 250 grams, X2 = 500 grams, X3 = 750 grams) and the second factor was the fermentation time (Y) (Y1 = 14 days, Y2 = 28 days, Y3 = 42 days). Determination of phosphorus content using UV-Vis spectroscopy instrument. Parameters measured were phosphorus (P) levels in liquid organic fertilizer. The independent variables in this study were the mass of banana waste and fermentation time, while the dependent variable in this study was the phosphorus content of the liquid fertilizer produced. The results of the analysis show that the phosphorus content (P) produced is X1Y1 = 0.1%, X2Y1 = 0.5%, X3Y1 = 0.09%, X1Y2 = 0.5%, X2Y2 = 2%, X3Y2 = 1.9 %, X1Y3 = 0.2%, X2Y3 = 0.5% and X3Y3 = 0.5%. There is an effect with the addition of a mass of banana waste as much as 250 grams at a 12-day fermentation time. It can be concluded that the liquid fertilizer produced has exceeded the SNI quality standard.

scholarly journals Soil Quality Engineering Using Vermicompost and its Effect on the Corn (Zea mays L.) Production in Coastal Area

2020 ◽  
Vol 25 (3) ◽  
pp. 127
Author(s):  
Riwandi Amir Diny ◽  
Hasanudin Hasanudin ◽  
Herry Gusmara ◽  
Anandyawati Anandyawati
Keyword(s):  
Soil Quality ◽  
Zea Mays L ◽  
Soil Analysis ◽  
Block Design ◽  
Organic Fertilizer ◽  
Corn Cob ◽  
Highest Weight ◽  
Phosphorus And Potassium ◽  
Nitrogen Phosphorus

The low quality of Entisol is caused by low availability of nitrogen, phosphorus, and potassium as well as low soil pH, so the addition of vermicompost is necessary. The purpose of this study was to determine the effect of vermicompost application on soil quality and to obtain the highest vermicompost dosage on the availability of nutrients such as N, P, K, and the yield of corn. The field experiment used a Randomized Completely Block Design (RCBD) with 7 dosages of vermicompost and three replications. The treatments were V0 = 0; V1 = 5; V2 = 10; V3 = 15; V4 = 20; V5 = 25; V6 = 30 Mg ha-1. Variables observed consisted of 1) initial soil and vermicompost characterization analysis, 2) soil analysis and N, P, and K content in leaves, and yield of corn. The results showed that Entisol was classified as low quality; however, vermicompost quality complied with the requirements of quality organic fertilizer. The experiment also indicated that the highest pH of Entisol (5.31) and K content in corn leaves (2.12%) were obtained at a dose of vermicompost 25 Mg ha-1. Meanwhile, the highest weight of husked corn cobs (415.55 g plant-1) and weight of unhusked corn cob (351.11 g plant-1) were obtained at a vermicompost dose of 15 Mg ha-1.

scholarly journals Evaluation of the range of fertilizers and methods of their application for a new variety of fiber flax Universal

2021 ◽  
pp. 55-59
Author(s):  
O. Yu. Sorokina
Keyword(s):  
Organic Fertilizer ◽  
New Variety ◽  
Hydrothermal Coefficient ◽  
Fiber Flax ◽  
High Responsiveness ◽  
Agrochemical Properties ◽  
Flax Seeds ◽  
Nitrogen Phosphorus ◽  
Flax Variety

Relevance. The productivity and especially the quality of flax products largely depend on a set of technological techniques that take into account varietal characteristics, agrochemical properties of the soil and the fertilizers used. Identification of the reaction to the production process of a new high-yielding flax variety of Universal is an important element of agricultural technology.Methods. The sod-podzolic medium loamy soil is characterized by a slightly acidic reaction of the soil solution pHKCl-5.44, a very high content of phosphorus (298 mg/kg) and medium potassium (85 mg/kg), low humus — 2.05%, medium boron (0.33 mg/kg), low zinc (0.56 mg/kg). The HTC (hydrothermal coefficient) for May — August by year was — 1.56 optimal (2017), — 1.09 arid (2018), — 1.80 wet(2019).Results. Studies have shown that the Universal flax variety has a high responsiveness to the use of fertilizers. The yield increases were: for flax straw 24 to 43%, for flax seeds from 27 to 49%, depending on the form of fertilizer and the method of their application. The advantage of the complex organomineral OMU “Universal” and mineral nitrogen-phosphorus-potassium with boron containing trace elements over the azofoska in equalized doses of nitrogen is noted. The increase in the yield of the flax stock of thesefertilizers with the row method of application was lower by 40 and 34% of their main application, but the profitability of this method increased from 46 to 234% and from 62 to 219%. The application of organic fertilizer Sivid — Bor for seed treatment and Sivid-Zinc for crop processing on the background of reducing the dose of azofoski from 1.5 to 1.0 c/ha allowed to raise close to making azofoski of 1.5 c/ha, but with a greater profitability of 115%.

scholarly journals The utilization of seaweed-based liquid organic fertilizer to stimulate Gracilaria verrucosa growth and quality

2020 ◽  
Author(s):  
Nasmia ◽  
E. Rosyida ◽  
A. Masyahoro ◽  
F. H. A. Putera ◽  
S. Natsir
Keyword(s):  
Laboratory Testing ◽  
Organic Fertilizer ◽  
Gracilaria Verrucosa ◽  
Organic Fertilizers ◽  
Environment Friendly ◽  
Liquid Fertilizer ◽  
Urea Fertilizer ◽  
Specific Target ◽  
Growth Production

Abstract The aim of this research is to analyze potency and generate organic fertilizer with noneconomic seaweed as material which is bioecologically environment-friendly to stimulate Gracilaria verrucosa production. By utilizing inexpensive and bioecologically beneficial material, it is expected to increase the growth, production, and repair the quality of Gracilaria verrucosa. The specific target of this research is to analyze the effectivity of an-organic fertilizers (urea) with seaweed-based liquid organic fertilizer. The hormone growth of generated urea and seaweed liquid fertilizers is analyzed, including auxin, gibberellin, cytokinin, as well as nutrient (macro and micro). Moreover, the fertilizer is tested on Gracilaria verrucosa. Several noneconomic seaweeds (Codium sp., Ulva sp., Padina sp., Amphiroa sp.) are found in waters area of Sulawesi Tengah. Based on laboratory testing result, it shows that organic fertilizer which has good potency by looking at N, P, and K contents is organic fertilizer Ulva sp., with content of N (0.45 mg/L), P (7.67 mg/L), and K (11.06 mg/L). The result of the research shows that there are apparent differences between the tested treatment (p < 0.05) on Gracilaria sp., growth, and the highest testing on giving liquid fertilizer Ulva sp. (71.0 g) with dose 400 mL/15 L water. The result of Gracilaria verrucosa quality by using liquid fertilizer Ulva sp. is 40.89%, urea fertilizer 38.62%, and without fertilizer 32.57%. The hormone content of Ulva sp. growth is IAA (0.3961 ppm), gibberellin (36.9595 ppm), and kinetin (3.3718 ppm), and urea fertilizer contains IAA (0.4063 ppm), gibberellin (30.2047 ppm), and kinetin (0.0717 ppm).

scholarly journals The Effect of Young Coconut Husk on the Quality of Goat Manure-Chicken Excreta Bioculture

2020 ◽  
Vol 44 (3) ◽  
Author(s):  
Dwi Ahmad Priyadi ◽  
Dyah Triasih ◽  
Sefri Ton ◽  
Ari Istanti
Keyword(s):  
Negative Impact ◽  
Anaerobic Fermentation ◽  
Agricultural Waste ◽  
Organic Fertilizer ◽  
Raw Material ◽  
Organic N ◽  
Liquid Fertilizer ◽  
Coconut Husk ◽  
Goat Manure

The negative impact of chemical fertilizers use is soil fertility declining. The situation occurs because of biological, physical, and chemical properties of the soil is decreased. Agricultural waste is a large commodity which utilization can still be optimized, for example by using as raw material for organic liquid fertilizer. Agricultural wastes that have good quality as fertilizer include goat manure, chicken excreta, and coconut husk. The utilization of agricultural waste as organic fertilizer is one way of creating sustainable agriculture. This study aims to test the quality of liquid fertilizer (bioculture) of goat manure and chicken excreta by adding various levels of coconut husk. Bioculture is made by anaerobic fermentation for 21 days. The parameters observed included levels of C-organic, N, P, and K bioculture, as well as germination tests to determine the presence of phytotoxins. The data were analyzed using one way ANOVA. The treatment of P5 (5% coconut husk) showed the highest levels of N and P, while the K content was not significantly different from the treatment of P4 (2.5% coconut husk). The germination test showed no phytotoxin activity in bioculture.

scholarly journals Evaluation of the range of fertilizers and methods of their application for a new variety of fiber flax Universal

2021 ◽  
pp. 55-59
Author(s):  
Olga Yu. Sorokina
Keyword(s):  
Organic Fertilizer ◽  
New Variety ◽  
Hydrothermal Coefficient ◽  
Fiber Flax ◽  
High Responsiveness ◽  
Agrochemical Properties ◽  
Flax Seeds ◽  
Nitrogen Phosphorus ◽  
Flax Variety

Relevance. The productivity and especially the quality of flax products largely depend on a set of technological techniques that take into account varietal characteristics, agrochemical properties of the soil and the fertilizers used. Identification of the reaction to the production process of a new high-yielding flax variety of Universal is an important element of agricultural technology.Methods. The sod-podzolic medium loamy soil is characterized by a slightly acidic reaction of the soil solution pHKCl-5.44, a very high content of phosphorus (298 mg/kg) and medium potassium (85 mg/kg), low humus — 2.05%, medium boron (0.33 mg/kg), low zinc (0.56 mg/kg). The HTC (hydrothermal coefficient) for May — August by year was — 1.56 optimal (2017), — 1.09 arid (2018), — 1.80 wet(2019).Results. Studies have shown that the Universal flax variety has a high responsiveness to the use of fertilizers. The yield increases were: for flax straw 24 to 43%, for flax seeds from 27 to 49%, depending on the form of fertilizer and the method of their application. The advantage of the complex organomineral OMU “Universal” and mineral nitrogen-phosphorus-potassium with boron containing trace elements over the azofoska in equalized doses of nitrogen is noted. The increase in the yield of the flax stock of these fertilizers with the row method of application was lower by 40 and 34% of their main application, but the profitability of this method increased from 46 to 234% and from 62 to 219%. The application of organic fertilizer Sivid — Bor for seed treatment and Sivid-Zinc for crop processing on the background of reducing the dose of azofoski from 1.5 to 1.0 c/ha allowed to raise close to making azofoski of 1.5 c/ha, but with a greater profitability of 115%.

scholarly journals The Study of Tong Composter in Produced Liquid Organic Fertilizer

2021 ◽  
Vol 6 (2) ◽  
pp. 71
Author(s):  
Aidah Maqbulah Al-Hadi ◽  
Yunita Ismail Masjud
Keyword(s):  
Null Hypothesis ◽  
Organic Waste ◽  
Organic Fertilizer ◽  
T Test ◽  
Waste Generation ◽  
Fermentation Time ◽  
The Republic ◽  
Ministerial Decree ◽  
Sample Minimum ◽  
Test Result

<strong>Abstract. </strong>Inadequate processing of waste in household areas has resulted in many people throwing the waste anywhere. Waste generation can be minimized by using the composting method. There are many methods of composting organic waste; one of them is the <em>Tong</em> Composter. <em>Tong</em> Composter is a composting method which in the process uses an EM4 bio-activator. <strong>Objectives:</strong> This research objective is to determine whether the liquid organic fertilizer parameters produced comply with the standard of Ministerial Decree of Agriculture No. 261 of 2019. <strong>Method and results:</strong> This research using the experimental method with two treatments, EM4 dosage (60 ml and 70 ml) and fermentation time (10 days and 20 days). A dose of EM4 in treatment 1 is 60 ml, and treatment 2 is 70 ml; each treatment was analyzed on the 10<sup>th</sup> day. For treatment 3 and 4, a dose of EM4 in treatment 3 is 60 ml, and in treatment 4 is 70 ml; each treatment was analyzed on the 20<sup>th</sup> day. Then from the liquid organic fertilizer produced, several parameters were analyzed at PT. Sucofindo Cibitung, such as Nitrogen, P<sub>2</sub>O<sub>5</sub>, and K<sub>2</sub>O parameter. Meanwhile, the pH will be measured in the Environmental Engineering Laboratory of President University. The laboratory experiment results from pH, Nitrogen, P­<sub>2</sub>O<sub>5</sub>, and K<sub>2</sub>O will be tested using the t-test. With the hypothesis (H<sub>O</sub>: µ sample ≥ minimum value of macro-nutrient and pH parameter from Ministerial Decree of Agriculture of the Republic of Indonesia Number 261 of 2019). According to the t-test result, the null hypothesis is rejected because Nitrogen, P<sub>2</sub>O<sub>5</sub>, and K<sub>2</sub>O in all parameters are less than 2%. The null hypothesis is accepted for pH because in all parameters is higher than or equal to 4. <strong>Conclusion:</strong> The t-test result showed that only the pH was complied with the standard, while the Nitrogen, P­<sub>2</sub>O<sub>5</sub>, and K<sub>2</sub>O parameters have not complied with the standard of Ministerial Decree of Agriculture No. 261 of 2019.

scholarly journals TEST OF LIQUID ORGANIC FERTILIZER ORIGINATED C. odorata AND COCONUT FIBER WITH VARIOUS COMPOSITION BY LENGTH FERMENTATION

2018 ◽  
Author(s):  
Jamilah Munir ◽  
Juniarti
Keyword(s):  
Organic Fertilizer ◽  
Nutrient Composition ◽  
Experimental Results ◽  
Decomposition Technique ◽  
Coconut Fiber ◽  
Liquid Fertilizer ◽  
Macro And Micronutrients

To test the quality of various compositions of liquid organic fertilizer product aimless originatedcoconut fiber and weeds C. odorata based on the length of fermentation by Micro-organismsLocal (MOL) has been carried out for 2 months. Trial comparing different composition of rawmaterials, namely: P1 (20% C. odorata+70% coconut fiber+10% MOL), P2 (40% C.odorata+50% coconut fiber+10% MOL), P3 (60% C. odorata+30% coconut fiber +10% MOL),P4 (80% C. odorata+10% coconut fiber+10% MOL) and P5 (MOL), which was fermented for15 and 45 days. Measurements of nutrient composition done for both macro and micronutrients.From the experimental results was known that there are variations in nutrient composition basedon the composition of constituent materials, either after 15 days or 45 days of fermentation.There was increased content of macro and micronutrients between fermented for 15 days to 45days, especially for N but not for others. Nutrient composition in accordance with the provisionsof the minister of agriculture, except for levels of C-organic unfulfilled after15 days and 45 daysof fermentation. It is therefore recommended to perform the decomposition technique alternatingaerobic and anaerobic, in order to get a quality liquid fertilizer is more optimized and tested forvarious types of crops.

scholarly journals UJI EFEKTIVITAS PUPUK ORGANIK CAIR DARI URIN TERNAK SAPI DAN KUDA TERHADAP PERTUMBUHAN VEGETATIF TANAMAN SAWI (Brassica juncea L.)

2019 ◽  
Vol 7 (2) ◽  
pp. 159
Author(s):  
Herlinawati Herlinawati ◽  
Iwan Doddy Dharmawibawa ◽  
Sucika Armiani
Keyword(s):  
Organic Fertilizer ◽  
Liquid Fertilizer ◽  
Randomized Design ◽  
Mustard Plant ◽  
Cow Urine ◽  
Wet Weight ◽  
Number Of Leaves ◽  
Completely Randomized Design ◽  
Market Needs

Mustard Vegetable is an economically valuable vegetable crop, so that community demand for vegetables is increasing. In an effort to meet market needs, mustard production needs to be increased, one of which is by improving the quality of planting media through fertilization. The use of liquid organic fertilizer is faster absorption by plants than solid organic fertilizer. One of the basic ingredients of liquid fertilizer can be using the urine of cattle and horses. This type of research is a pure experiment using a completely randomized design (CRD). The study used 4 treatments 3 replications using liquid organic fertilizer from cow urine and 4 treatments 3 replications using liquid organic fertilizer from horse urine with fertilizer concentrations of 25%, 50% and 100%, with research parameters namely plant height, number of leaves, length leaf, leaf width and wet weight. The technique of data collection is done by observation. The data in this study were analyzed using ANOVA (Analysis of Variance) One Way using SPSS 14 for Windows. The results of research on liquid fertilizer from the urine of cattle and horses significantly affect the rate of growth of mustard plants. The mustard plant has a faster growth rate using liquid fertilizer from cow urine compared to horse urine.

scholarly journals Kajian Proses Fermentasi Limbah Sayur dan Buah Dari Pasar Tradisional Kintamani

2021 ◽  
Vol 9 (2) ◽  
pp. 268
Author(s):  
I Wayan Edy Wirawan ◽  
Yohanes Setiyo ◽  
Ida Ayu Gede Bintang Madrini
Keyword(s):  
Chemical Oxygen Demand ◽  
Biochemical Oxygen Demand ◽  
Fermentation Process ◽  
Organic Fertilizer ◽  
Oxygen Demand ◽  
Liquid Fertilizer ◽  
Color Degree ◽  
Fruit Waste ◽  
Traditional Market

ABSTRAK Tujuan dari penelitian ini yakni sebagai berikut: (1) mengetahui pengaruh kombinasi antara limbah sayur dan limbah buah untuk dibuat pupuk organik cair, dan (2) mengetahui perlakuan yang terbaik pada proses fermentasi limbah sayur dan buah dari pasar tradisional  Penelitian ini menggunakan 4 perlakuan sebagai berikut : perlakuan A0 = sayur 100 %, A1 = sayur 90 % dan buah 10 %, perlakuan A2 = sayur 80 % dan buah 20 %, perlakuan A3 = sayur 70 dan buah 30 %. Campuran sayur dan buah dari setiap perlakuan adalah 10 kg dan dihancurkan dengan blender, hasil pengecilan ukuran kemudian di ditambahkan  dengan air 20 liter dan molase masing masing 1 kg . Sayur adalah sawi putih, kobis, sayur hijau,sedangkan buah : Tomat.Parameter yang diamati yaitu : perubahan warna, derajat keasaman (pH) dan Daya hantar listrik (EC), (TDS), BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), C-organik dan N-total. Secara umum, kualitas pupuk cair  yang dihasilkan dari keempat perlakukan sesuai dengan Standar SNI No.70/Permentan/SR.140/10/2011. ABSTRACT The objectives of this study were to: (1) determine the effect of a combination of waste vegetables and fruit waste to make liquid organic fertilizer, and (2) find out the best treatment in the fermentation process of vegetable and fruit waste from the traditional market of Kintamani. This study uses 4 treatments as follows: A0 treatment = 100% vegetables, A1 = 90% vegetables and 10% fruit, A2 treatment = 80% vegetables and 20% fruit, A3 treatment = 70 vegetables and 30% fruit. The mixture of vegetables and fruit from each treatment is 10 kg and crushed with a blender, the size reduction results are then added with 20 liters of water and molasses 1 kg each. Vegetables are chicory, cabbage, green vegetables, whole fruit: Tomatoes. The observed parameters are changes in color, degree of acidity (pH) and electrical conductivity (DHL), (TDS), BOD (Biochemical Oxygen Demand), COD (Chemical Oxygen Demand), C-organic, and N-total. In general, the quality of liquid fertilizer produced from the four treatments is in accordance with SNI Standard No.70 / Permentan / SR.140 / 10/2011

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