Organic Dosage Research Articles

The Effect of Organic Fertilizer and Time Watering Interval on Growth and Yield of Lettuce (Lactuca sativa L.

Plant requires water and fertilizer for its growth. Water plays a role in maintaining cell turgidity or metabolism process especially in photosynthesis. Either organic fertilizer provides nutrients for plants, it is also known that organic fertilizer has the function of fixing soil physical properties by improving soil water holding capacity. The aim of this research is to study the effect of time watering interval and organic fertilizer made from slaughter house waste on lettuce growth and yield. This research was done in greenhouse scale, at Agriculture Faculty, Siliwangi University Tasikmalaya at an altitude of 356 m above sea level, starting from February to May 2020. This research was arranged on Completely Randomized Block Design in factorial pattern, consisted of two factors. The first factor is time watering interval, consisted four time watering intervals, i.e. 1, 2, 3, 4 days. The second factor is organic fertilizer dosage, consisted of five organic fertilizer dosages, i.e. 0 t/ha, 10 t/ha, 20 t/ha, 30 t/ha and 40 t/ha. Each treatment is replicated 3 times, therefore, overall there is 60 experimental units. Data were analysed using analysis of variance with F test and continued by Duncan’s Multiple Range Test with 5% of critical value. The result of this research shows that there is no interraction between time watering interval and slaughter house organic fertilizer on growth and yield of lettuce ( Lactuca sativa , L.). The treatment of time watering interval every 3 days and 40 t/ha organic fertilizer tends to produce better growth and yield of lettuce.

Growth and yield respons of mungbean to different level of organic and inorganic fertilizer in North Sumatera

Integrated nutrient management is an alternative for the sustainable and cost-effective management of soil fertility by combined apply of organic with inorganic fertilizer resulting in rising soil fertility and productivity. This study aims (i) to determine the growth and yield respons of mungbean to different level of organic and inorganic fertilizer, and (ii) to measuring the effectiveness of organic fertilizer on mungbean production. The research was conducted at Pasar VI Kwala Mencirim Village, Sei Bingai District, Langkat Regency, North Sumatra in December 2020 to April 2021. This study used a Non-Factorial Randomize Complete Block design consisting of seven treatments and four replications, namely P0 (without fertilizer), P1 (100% dose of NPK fertilizer), P2 (75% dose of NPK fertilizer), P3 (50% dose of organic fertilizer + 75% NPK fertilizer) P4 (100% dose of organic fertilizer + 75% NPK fertilizer), P5 (150% dose of organic fertilizer + 75% NPK fertilizer), and P6 (1 dose of organic fertilizer + 100% NPK fertilizer). Plant height observations were carried out at 4, 6, and 8 weeks after planting and production observations were at harvest. Analysis of varian (ANOVA) was used to determined the effect of fertilizers treatment and followed by Duncan Multiple Range Test (DMRT) at 5% confidence interval for significant differences between treatment on plant growth and production. Organic fertilizer effectiveness was calculating using the Relative Agronomy Effectiveness (RAE). The results showed that organic fertilizer had a significant effect on mungbean growth and yield compared to controls. The highest mungbean production in P6 treatment of 1209 Kg/ha while the control treatment was 512 Kg/ha. Organic fertilizer was effective to increase mungbean production. The highest relative agronomic efficiency (RAE) was 438% in the treatment of organic fertilizer fertilizer at P6 of 100% dose of organic fertilizer +100% NPK fertilizer

Pengaruh Dosis Pupuk Organik Cair Dari Urin Kelinci dan Macam Varietas Terhadap Pertumbuhan dan Hasil Tanaman Bayam Merah (Alternanthera amonea.Voss)

This study aimed to determine the effect of the dose of liquid organic fertilizer in rabbit urine on the growth and yield of three varieties of red spinach. This research was conducted in Watulimo Village, Watulimo District, Trenggalek Regency at an altitude of 154 meters above sea level from August 23 to October 15, 2021. The study used a two-factor Completely Randomized Design (CRD) which was repeated 3 times, namely: First factor: Dosage of rabbit urine (U) which consisted of 3 treatments, repeated 3 times, namely: U0 = Without fertilizer U1 = dose of rabbit urine 60 ml/plant U2 = dose of rabbit urine 120 ml/plant, Second factor: Red spinach variety (V) which consisted of 3 treatments repeated 3 times, namely: V1 = Mira variety, V2 = Clara variety, V3 = Variety BA-285. From the results of the research that has been carried out, it can be concluded that there was a very significant interaction between doses of rabbit urine and red spinach varieties on plant height at age 14; 21; 28; and 35 days after planting, wet weight per plant and dry weight per plant at harvest time for the best results from the combination of U2V3 treatments. The treatment dose of rabbit urine was significantly different to plant height at 7 DAP, the number of leaves at observation age at 7 DAP, 14 DAP, 21 DAP, 28 DAP, 35 DAP the largest yield was U2, (rabbit urine dose 120 ml/plant). The treatment of varieties of red spinach was significantly different to plant height at 7 DAP, the number of leaves at the observation age at 7 DAP, 14 DAP, 21 DAP, 28 DAP, 35 DAP, and the largest yield was V2, (red spinach variety BA285).

Perbaikan Kualitas Kimia Vertisol Melalui Pemberian Bahan Organik Mucuna, Crotolaria, dan Dosis Pupuk Hayati

The purpose of this study was to evaluate the effect of the treatment of organic material sources Mucuna and Crotolaria and the dose of vesicle arbuscular mycorrhizae (VAM) on the chemical quality of vertisol, nutrient uptake and maize yield in dry land. The research was carried out in the experimental field of the Kupang State Agricultural Polytechnic, in the village of Oesao, East Kupang District, Kupang Regency, East Nusa Tenggara. The study took place from May to September 2021. The study design used a factorial randomized block design. The first factortreatment was source of organic matter (B) of ground cover plant biomass, namely: B0 = no ground cover plant biomass; BM = Mucuna and its biomass are immersed; BC = Crotolaria and its biomass immersed. The second treatment was dose of VAM biofertilizer (D), namely: M0 = 0 g plant-1 (without VAM); M1 = 10 g plant-1; M2 = 20 g plant-1. The results showed that the application of organic material sources and the dose of VAM, respectively, could significantly improve the chemical properties of vertisol. The results showed that the use of organic matter and dose of VAM independently was proven to be the most effective in improving the chemical quality of vertisol. Application of organic matter Mucuna and Crotolaria at a dose of VAM 20 g plant-1 significantly increased N uptake in maize by 53.26‒54.45%, maize P uptake by 27.83% and 28.85%, and the yield of dry shelled corn by 146.92% and 146.92% compared to other treatments.
 
 Keywords: organic matter, vesicle arbuscular mycorrhizae, soil chemical

Application of Fish Waste Fertilizer on the Growth of Maize (Zea mays)

Corn is an important cereal in the world and widely used as human consumption, livestock feed and even as raw material for industrial purposes. A study was carried out on the effect of fish waste fertilizer (FWF) on the growth of maize at UiTM Jasin Campus, Malacca. The experiment was carried out by using Randomized Complete Block Design (RCBD) based on 5 treatments and 5 replications. The control treatment (T1) was 100% of NPK fertilizer, treatment 2 (T2) was 30% of NPK + 70% FWF, treatment 3 (T3) was 50% of NPK + FWF, treatment 4 (T4) was 70% of NPK + 30% FWF and treatment 5 (T5) was 100% FWF. The corn variety used was Leckat 592 and different doses of organic fertilizer were applied 5 times. The parameters used in this study were plant height, number of leaves, leaf area, stem girth and chlorophyll content. In this experiment, treatment 3 (50% of NPK + FWF) and treatment 4 (70% of NPK + 30% FWF) showed significant difference in leaf area and stem girth parameters, respectively. However, there are no significant differences of the treatments on plant height, number of leaves, and chlorophyll content. NPK fertilizer showed the highest mean numbers for the three parameters. Thus, from this study, combination of NPK fertilizer with fish waste fertilizer showed some significant in the growth of corn.

Pengaruh Pupuk Organik (Kandang Kambing) Terhadap Pertumbuhan dan Hasil Tanaman Tomat (Lycopersicum Esculentum Mill)

This study aims to determine the effect of giving organic fertilizer (goat cage) with different doses on the growth and yield of tomato plants. The study used a randomized block design with one factor, namely P0 = No treatment (control), P1 = dose of goat manure 4 kg.plot-1 equivalent to 10 t.ha-1, P2 = dose of goat manure 6 kg.plot-1 equivalent with 15 t.ha-1, P3 = dose of goat manure 8 kg.plot-1 is equivalent to 20 t.ha-1, P4 = dose of goat manure 10 kg.plot-1 is equivalent to 25 t.ha-1. The results showed that the treatment with various doses of organic fertilizer (goat cage) was 6 kg. gave results that had a very significant effect on the observation variable stem diameter 45 DAP, tomato plants showed an average of 3.79 cm, had a very significant effect on fruit weight of tomato plants on the observation variable showed an average of 232.50, had a very significant effect on the observed variables. flowering age of tomato plants with an average of 30, and significantly affected the observed variables of tomato plant height 45 DAP, number of leaves 15 DAP and 30 DAP and stem diameter 15 DAP

APLIKASI KOMBINASI PUPUK ORGANIK UNTUK MENINGKATKAN PERTUMBUHAN TANAMAN KANGKUNG DI TANAH MARGINAL

The growth of kale is strongly influenced by environmental conditions, one of which is the level of soil fertility. Soil with less fertile conditions can cause plants to grow not optimally. This study aims to determine the effect of a combination of organic fertilizers on the growth of kale on marginal soils. This study used a randomized block design with a combination dose of organic fertilizer consisting of 5 levels of treatment, namely control (P0), 5 tons ha-1 (P1), 10 tons ha-1 (P2), 15 tons ha-1 (P3). ), and 20 tons ha-1 (P4). The variables observed were plant height, number of leaves, leaf area, number of branches and fresh weight. Observational data were analyzed for variance, which showed a significant effect followed by Duncan's Multiple Range Test (DMRT). The results showed that the combination treatment of organic fertilizer had a significant effect on the growth of kale. The best combination treatment of organic fertilizer was obtained by treatment of cow dung + chicken at a dose of 20 tons ha-1 (P4) with an increase in fresh weight of kale by 87.49% compared to the control

Efektifitas Pupuk Organik Dan NPK Terhadap Pertumbuhan Dan Hasil Tanaman Pakcoy (Brassica Rapa L)

This study aims to examine the effectiveness of doses of organic fertilizer and NPK on the growth and yield of pakcoy (Brassica rapaL.)The research design used isRandomized Block Design (RAK) with 6 treatments consisting of (P0) = control, namely 50% NPK, (P1) = addition of buffalo manure 150 g/plant (37.5 tons/ha), (P2) = addition of fertilizer buffalo cage 200 g/plant (50 tons/ha), (P3)= addition of buffalo manure 250 g/plant (62.5 tons/ha), (P4)= addition of buffalo manure 300 g/plant (75 tons/plant) ha), (P5) = addition of 350 g of buffalo manure/plant (87.5 tons/ha). Parameters observed at the growth stage were plant height, number of leaves and plant diameter. Parameters observed in plant production were wet weight, dry weight and leaf area. The data obtained were then statistically processed using analysis of variance (F test) to determine the effect of doses of organic fertilizer and NPK on the growth and yield of pakcoy plants, then continued with DMRT (Duncan's Multiple Range Test) at 5% level to determine differences between treatments. The results showed that the addition of buffalo manure increased the growth and yield of pakcoy vegetables. The addition of NPK fertilizer at 0.04 g/plant and buffalo manure 200g/plant equivalent to 50 tons/ha was the most effective combination of fertilization and resulted in the highest growth and yield of pakcoy vegetables. The results showed that the addition of buffalo manure increased the growth and yield of pakcoy vegetables. The addition of NPK fertilizer at 0.04 g/plant and buffalo manure 200g/plant equivalent to 50 tons/ha was the most effective combination of fertilization and resulted in the highest growth and yield of pakcoy vegetables. The results showed that the addition of buffalo manure increased the growth and yield of pakcoy vegetables. The addition of NPK fertilizer at 0.04 g/plant and buffalo manure 200g/plant equivalent to 50 tons/ha was the most effective combination of fertilization and resulted in the highest growth and yield of pakcoy vegetables.

Increased soil pH due to the application of sulfate-reducing bacteria, rhizobia and amendments to acid sulfate soils planted with soybeans

This study aims to determine the effect of the combination of Sulfate Reducing Bacteria, Rhizobia, and amendment matters on the soil pH acid sulfate soil planted with soybeans, carried out at the Greenhouse, Soil Biology Laboratory, Research Laboratory, Faculty of Agriculture, Universitas Sumatera Utara, from March to September 2021. This study used a factorial randomized block design with 2 factors and 3 replications. Each factor consists of 4 levels. The first factor were H0 (Control); H1 (Sulfate Reducing Bacteria); H2 (Rhizobia bacteria); H3 (Sulfate Reducing Bacteria + Rhizobia Bacteria), and the second factor was B0 (Control); B1 (EFB organic matters doses 15 tons/ha); B2 (EFB organic matters doses 30 tons/ha); B3 (Lime of CaCO3 doses 7.5 tons/ha). The research showed that Sulfate Reducing Bacteria, and Rhizobia were able to increase soil pH significantly. Application of EFB organic matters doses 30 tons/ha, and Lime of CaCO3 doses 7.5 tons/ha can increased soil pH.

Combining Manure and Liquid Organic Fertilizer (LOF) and Its Effects on Livestock-Integrated Maize Farming Production (Zea Mays L)

This study aims to analyze the reaction in the doses of cow manure and liquid organic fertilizer and their reaction to the increase of farmer's revenue in a livestock-integrated farming system in Gorontalo. This study was performed in Gorontalo from March to July 2021. The study employed a 2-factor factorial design based on the randomized block design (RBD). The first factor is the cow manure dose and the second factor is the liquid organic fertilizer dose. Data were analyzed using ANOVA and the Tukey Honest Significant Difference (HSD) test. The results of the study concluded that the most optimal cow manure dose was 10 tons ha-1 to produce maize at a rate of 5.70 tons ha-1. 20 cc/14 L liquid organic fertilizer was able to generate the most optimal production of 5,67 tons ha-1. Integrating 10 tons ha-1 cow manure with 20 cc/14 L liquid organic fertilizer can generate the most optimal production amounting to 6.83 tons ha-1.

Обґрунтування підходів і стратегічних напрямів щодо секвестрації й збільшення органічного вуглецю в ґрунтах зони Полісся

Goal. To scientifically substantiate zonal approaches and directions of organic carbon management in the soils of the Polissia zone and search for ways of its sequestration, restoration of soil fertility, and reduction of carbonic acid production in the atmosphere, which will be taken as a basis for the formation of key carbon farming systems in this area. Methods. System approach, scientific analysis of information, comparison, theoretical and practical generalization, abstract-logical. Results. Problems of restoration of humus reserves in low-yielding sod-podzolic soils of the Polissia zone, and preservation of their ecological and energy potential are analyzed. The possibilities and expediency of organic carbon management at the regional level and its sequestration in the soils of the Polissia zone are highlighted. Scientific approaches and strategic directions for the reproduction, absorption, and retention of organic carbon in sod-podzolic soils to ensure neutral land degradation are considered. The main ways of development of carbon agriculture at the regional level to achieve the stabilization of organic carbon in the soils of the Polissia zone and its further increase are proposed. Conclusions. Carbon uptake and retention in the soil reservoir are ensured through appropriate zonal farming systems that regulate soil fertility. This problem is solved by arranging arable land, introducing low-carbon use with reforestation, stimulating livestock development, including the creation of hayfields and pastures, increasing production, and applying optimal doses of organic and mineral fertilizers, including secondary organic raw materials and local natural resources. As well as changing the structure of sown areas with a reduction of row crops, increasing the share of perennial grasses, the inclusion of legumes and cover and green crops in crop rotations, increasing crop yields, and introducing technologies of minimal tillage. With the application of anti-degradation measures, agro-technologies of soil cultivation, and involvement of all renewable organic resources, a positive balance of humus is achieved, which is a prerequisite for reducing carbon emissions, restoring and increasing soil fertility and productivity of agrocenoses.

APPLICATION OF LIQUID ORGANIC FERTILIZER AND NPK Blue ON THE GROWTH OF PEANUT (Arachis hypogea L.)

Peanuts make a significant contribution in meeting the needs of legumes, especially in Southeast Aceh Regency. This research was conducted in Kisam Village, Bambel District, Southeast Aceh, with an altitude of ± 220 m above sea level. The aim of the study was to determine the application of liquid organic fertilizer and the dose of NPK fertilizer on the growth and development of peanut (arachis Hypogea L.) plants. The design used in this study was a Randomized Block Design (RAK) which was arranged in a factorial manner with 9 treatment combinations with 3 (three) replications. The treatment consisted of 2 (two) factors, namely the first treatment of liquid organic fertilizer (P1) 2cc/l water, (P2) 4 cc/l water and (P3) 8 cc/l water, while the second factor was the dose of NPK fertilizer (N1 ) 1.25 g/plant, (N2) 1.75gr/plant and (N3) 2.25 g/plant. The observed variables were plant height, number of branches, number of petioles and number of leaves. The results showed that the application of liquid organic fertilizer (P1) gave the best results on plant height, number of branches, number of petioles and number of leaves. Dosage of NPK (N3) fertilizer gave the best results on plant height, number of leaves. The interaction of treatment with liquid organic fertilizer (P1) and dose of NPK fertilizer (N3) gave the best effect on the growth and production of peanut plants. The results of the analysis of variance showed that there was no significant interaction between the treatment of giving liquid organic fertilizer (Pocnasa) and chemical fertilizer (NPK Biru) to all observed variables.

Enhancement of Soybean Growth using Biological Agents Seed Treatment and Fertilization

The provision of quality soybean seeds in Indonesia is currently still experiencing problems, especially the deterioration of soybean seeds during storage, especially when they are at the seed storage. Presently, soybean seeds that are circulating in the community are seeds that have experienced a decrease in quality. So that the soybean seeds can still be used, a special treatment is needed, specifically utilized biological agents. This technique was carried out by integrating inoculants of biological agents from the bacterial group for seed treatment before planting. In addition, to get maximum results, there needs to be a breakthrough in the cultivation system, specifically by combining chemical fertilizers and organic fertilizers. This research was carried out in the Seed Analysis Laboratory and Experimental Farm of The Seed Study Program, Politeknik Negeri Lampung on August to November 2021. This experiment was arranged using a factorial completely randomized design (CRD). The first factor was application of biological agents seed treatment which consisted of three levels, especially control/no biological agents (A0), husk charcoal powder + Trichoderma inoculant (A1), and husk charcoal powder + Pseudomonas inoculant (A2). The second factor is fertilization which consists of five levels, especially control (no fertilization (B0), 100% inorganic fertilizer dosage (B2), 100% organic fertilizer dosage + 100% inorganic fertilizer dosage (B3), 100% organic fertilizer dosage + 50% inorganic fertilizer dosage (B4) and 100% organic fertilizer dosage + 25% inorganic fertilizer dosage (B5). This research resulted application of biological agents Trichoderma asperellum and Pseudomonas aeruginosa to soybean seed treatment before planting can reduce the use of inorganic fertilizers on soybean plants. The combination of 100% organic fertilizer, 25% and or 50% inorganic fertilizer, can increased the growth of soybean plants based on the variables of plant height, leaf number and leaf width.

Impact of Liquid Organic Fertilizer Application on Growth Three Cauliflower Cultivars

This research aims to study the growth response of three cauliflower cultivars due to the application of liquid organic fertilizer on organic farming, to find the best concentration of liquid organic fertilizer in increasing growth of three cauliflower cultivars, and to study the interaction between concentration of liquid organic fertilizer and cultivars on growth of cauliflower. This research used a randomized block design (RBD) arranged in factorial with 2 factors and 3 replications. The first factor is the cauliflower cultivar (Snow white, Diamond 40, and PM 126), and the second factor is the dosage of liquid organic fertilizer (0, 25%, 50%, and 75%). The results showed that (1) the application of organic fertilizer is significant to increasing the plant height (2) PM 126 cultivar was a better response to cultivate on organic farming in Lampung; (3) No interaction between the dosage of liquid organic fertilizer and cauliflower cultivar on growth of cauliflower.

The effectiveness of organic fertilizer from natural dyes waste on the growth of Indigofera tinctoria L.

Indigofera tinctoria natural dye extraction waste has not been utilized become environmental pollution can encourage climate change. Climate change causes land degradation and decreased crop productivity. Management of the waste into organic fertilizer and used in plant cultivation need to mitigate climate change. This study aimed to examine the role of organic fertilizer from natural dye waste in obtaining the optimum dose in supporting the growth of Indigofera tinctoria. The study used a Randomized Completely Block Design (RCBD) with one factor, namely the dose of organic fertilizer from the extraction of Indigofera tinctoria L. with 11 levels (0 g/plant, 50 g/plant, 100 g/plant, 150 g/plant, 200 g/plant, 250 g/plant, 300 g/plant, 350 g/plant, 400 g/plant, 450 g/plant, and 500 g/plant). The results showed that the natural dye extraction waste could be used as organic fertilizer to support the growth of Indigofera tinctoria. Application of organic fertilizer at a dose of 50 g/plant showed an increase in the plant height of 14% and number of leaves by 124%. The dose of organic fertilizer of 350 g/plant is the optimum dose in producing the high number of leaves, leaf area index, and plant biomass.

Sugar Beet Harvest Depending on Crop Rotation, Method of Basic Tillage, and Dose of Mineral and Organic Fertilizers

Sugar Beet Harvest Depending on Crop Rotation, Method of Basic Tillage, and Dose of Mineral and Organic Fertilizers

Leaf nutrient content and corn growth with application of liquid organic fertilizer and inorganic fertilizer

Plants have an important role in mitigating climate change because plants are able to absorb carbon dioxide which is one of the greenhouse gases. Good plant growth and high yields are a reflection of its ability to absorb carbon dioxide gas, so various efforts aimed at this, such as fertilization can contribute to reducing greenhouse gas levels in the atmosphere. This research aims to determine the use of liquid organic fertilizers and inorganic fertilizers on nutrient uptake and growth of corn plants. This research was conducted in the Jumantono experimental field, Karanganyar. The research used the Randomized Block Design method, 9 treatments (A = Control, B = NPK standard, C = ¼ NPK + 1 POC, D = ½ NPK + 1 POC, E = ¾ NPK +1 POC, F = 1 NPK + 1 POC, G = ¾ NPK + ¼ POC, H = ¾ NPK + ½ POC, I = ¾ NPK + ¾ POC) with 3 replications, so we get 27 samples. The results showed that the application of liquid organic fertilizer doses of 1/4, 1/2, 3/4 and 1 combined with inorganic fertilizers gave no different results on nutrient uptake and increased plant growth, especially in the number of leaves and stem diameter, but differed in plant height. The application of 1 dose of liquid organic fertilizer and 3/4 dose of inorganic fertilizer gives higher yields compared to standard inorganic fertilizers.

Pengaruh Berbagai Takaran Pupuk Organik Cair Limbah Tahu dan Urea terhadap Nodulasi, Serapan N, dan Pertumbuhan Tanaman Kacang Tanah (Arachis hypogaea L.)

The purpose of this study was to determine the effect of giving various doses of liquid organic fertilizer of tofu (POC) and urea on nodulation, N uptake and growth of Peanut plants (Arachis hypogaea L.) in the maximum vegetative phase of the plant. The research method used an experimental method with seven treatments. Each treatment had 3 replications so it consisted of 21 experimental units. The research was conducted April-August 2020 in Dasan Tebu Village, Ombe Baru Village, Kediri District, West Lombok Regency. The treatments used were P0 (without treatment), P1 (50 kg Urea / ha + 10,000 l POC / ha), P2 (50 kg Urea / ha + 15,000 l POC / ha), P3 (50 kg Urea / ha + 20,000 l POC / ha), P4 (100 kg Urea / ha + 10,000 l POC / ha), P5 (100 kg Urea / ha + 15,000 l POC / ha), P6 (100 kg Urea / ha + 20,000 l POC / ha). The parameters tested in this research is the growth of peanut, the total amount root nodules, the wet stover weight of root nodules, the N content of tissue, the plant's wet stover, the plant's dry stover, the N uptake of plants, soil pH and N-available soil. The treatment did not affect the number of nodules, N uptake, plant height, plant wet stover weight and available N-NO3-. However, it has an effect on root nodule wet stover weight, nitrogen on tissue plant, plant dry stover, soil pH, and available N-NH4+.

Study of Growth and Production of Cotton Crops on Organic and Inorganic Fertilization

The study aimed to determine the effectiveness of organic and inorganic fertilization and to obtain the right dose of organic and inorganic fertilizers for the growth and production of seed cotton plants. The research was designed using a Randomized Group Design with 8 treatments repeated 5 times. The treatments were inorganic fertilizer Balittas package dose (100 kg N + 37.5 kg P2O5 + 37.5 kg K2O), Balittas package dose treatment with the addition of cottonseed cake bokashi, Balittas package dose with the addition of cow manure, Balittas package dose with the addition of cottonseed cake bokashi and cow manure and treatment with a dose of ½ Balittas package with the addition of organic fertilizers mentioned above, and treatment only with the use of organic fertilizers. The results showed that the treatment of organic and inorganic fertilizers was very effective in increasing the growth and production of cotton plants. The fertilization dose of Balittas package (100 kg N + 37.5 kg P2O5 + 37.5 kg K2O) + cottonseed cake bokashi + cow pukan gave better growth and production compared to other treatments, but the fertilization treatment of ½ dose of Balittas package (50 kg N + 18.75 kg P2O5 + 18.75 kg K2O) + cottonseed cake bokashi tended to be more efficient.

Effect of Giving Organic Waste-Based Poc To The Growth of Kailan Plants (Brassica Oleracea L)

This study combined the use of variable doses of liquid organic fertilizers made from organic waste, wich a Factorial experimental study that uses a Randomized Group Design (RAK) consisting of 2 treatment factors. Factor I treatment is a type of POC raw material consisting of 7 levels: P0= Comparison without the provision of liquid organic fertilizer, but given basic fertilizer; P1= Given POC made from a mixture of materials 2 to 7; P2=Given POC made from vegetable waste (tomatoes and mustard); P3= Given POC made from waste fruits (bananas and papaya); P4= Given POC made from germinated waste; P5= Given POC made from waste food catering; P6= Given POC made from catfish waste; P7= Given POC made from animal slaughterhouse waste (cow's blood). The treatment of Factor II is the concentration of POC giving includes 3 levels, namely: K1= POC concentration of 4%=40 ml/ liter of solution; K2= POC concentration of 8%=80 ml/liter solution; K3= POC concentration of 12%=120 ml/liter of solution. The parameters of observations made on kailan plants include: the number and length of the plant. By comparing the concentration treatment of K1, K2 and K3 mentioned above, the K2 treatment (concentration of 8% POC) exerts a better influence than the treatment of K1 and K3, although it is not real from the K3 treatment. This shows that the use of POC made from organic waste with a concentration of 8% POC provides a significant influence that can play a role in increasing soil fertility and plant productivity.