Berkala Ilmiah Pertanian
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Pengaruh Pemberian Vermikompos dan Pupuk KNO3 terhadap Pertumbuhan dan Hasil Tanaman Bawang Merah (Allium Ascalonicum L.) pada Lahan Kering
The use of dry land for shallot cultivation in Indonesia is still not optimal because it is considered as land that has no good potential for crop cultivation. Dry land problems include limited availability of water, low organic matter and soil nutrients, especially potassium. The purpose of this experiment was to determine the response of vermicompost and KNO3 fertilizer to the growth and yield of shallots on dry land. The experimental design used a factorial randomized block design, doses of vermicompost (5 tons/ha, 10 to/ha, and 15 tons/ha) and KNO3 fertilizer doses (0 kg/ha, 114 kg/ha, and 228 kg/ha). Parameters observed included plant height, number of leaves per hill, number of tubers per hill, tuber diameter, weight of fresh tubers per hill, weight of stored dry tubers per hill, and tuber moisture content. The results showed that the interaction between the application of 10 tons/ha of vermicompost and 114 kg/ha of KNO3 fertilizer had a significant effect on the parameters of fresh tuber weight per clump and dry tuber weight stored per clump. The single treatment of vermicompost at a dose of 15 tons/ha had a significant effect on plant height, number of leaves per hill, fresh tuber weight per hill, and dry tuber weight stored per hill. Single treatment with KNO3 fertilizer dose of 228 kg/ha had a significant effect on the weight of fresh tubers per clump and the weight of stored dry tubers per clump
Inovasi Budidaya Tanaman Gambas (Luffa acutangula) Kajian Aplikasi Pupuk Cair Organik dan Petroganik
The luffa plant of the Cucurbitaceae family or the pumpkin tribe has a high content of vitamins, A, B, C, high fiber, the fruit is green in color, the skin is rather rough and is used for vegetables. Gambas is popular with the public because it tastes slightly sweet,, is often used in various dishes because its nutritional value is very good for the immune system. The problem that occurs is gambas is a vegetable that is less popular than cucumber, lettuce, mustard greens, and others and in Kediri its production has decreased due to factors that support development, there are problems, especially the use of fertilizers. The aim of the experiment was to study the innovation of squash cultivation with the application of POC and Petroganik on the effect of the interaction between the treatment combinations in increasing the growth and production of the squash plant. Experimental design using Factorial RAK, with experimental treatment to one dose of POC consisting of 3 levels 8 ml/L, 10 ml/L, 12 ml/L and the second petroganic dose is 10 tonnes/Ha, 12 tonnes/Ha, 14 tonnes/Ha , there were 9 combinations, repeated 3 times and there were 27 experimental units. The results showed that there was a significant effect and interactions occurred in the combination of treatments, the best data was P3N3 (Petroganik 14 ton/Ha and POC 12 ml/L) which produced a plant height of 1.91 cm, number of leaves 47.38, number of fruit 8.57 , Fruit weight 850.37 grams, fruit length 32.65 per plant. So innovations in the cultivation of gambas plants should use the best treatment, namely P3N3, and other factors that must be considered include quality seeds, soil must have good physical and chemical properties, a climate that supports growth, environmental temperature around 25-280 C. And pH around 5,6
Efektivitas Beauvaria bassiana dan Metarhizium anisopliae terhadap Pengendalian Hama Thrips sp. (Thysanoptera: Tripidae) pada Tanaman Cabai Besar (Capsicum annuum L.)
The productivity of chili plants can be reduced due to the disturbance of various Plant Pest Organisms (OPT), one of which is insect pests from the Order Thysanoptera, family Thripidae or better known as Thrips sp. Thrips pests attack plants by sucking the liquid on the leaf surface, especially the young leaves. Symptoms that appear are silvery spots then change color to copper brown, the leaves curl or wrinkle and eventually the plant dies. Control measures that can be used to control or suppress Thrips sp. pest populations. other than using insecticides, namely by utilizing Biological Control Agents (APH) such as the entomopathogenic fungi Metarhizium anisopliae and Beauveria bassiana. The fungus B. bassiana infects host insects through physical contact by attaching conidia to the integument. M. anisopliae infection begins with the attachment of M. anisopliae spores to the cuticle of the insect and then the spores of M. anisopliae germinate and penetrate into the insect's body. This study used a field experiment method arranged in a Factorial Completely Randomized Design (CRD) with 2 factors and 4 replications. The first factor was the type of entomopathogenic fungus which consisted of two levels, A1 = Beauveria bassiana, A2 = Metarhizium anisopliae. The second factor was the density of conidia which consisted of 4 types: K1 = 105/ml, K2 = 106/ml, K3 = 107/ml, K4 = 108/ml. The observed data is quantitative data, then it will be analyzed statistically using ANOVA analysis of variance, if there is a significant difference then a follow-up test will be carried out using the DMRT. The effect of factor A1 (B. bassiana) is better than the effect of factor A2 (M. anisopliae) on the mortality of Thrips sp. and the best effect of factor K is on K4 (spore density 108/ml). So it is recommended to use the A1K4 treatment because it is effective on the mortality of Thrips sp. and the effect of factor K4 (spore density of 108/ml) was better than the effect of factors K1 (spore density of 105/ml), K2 (spore density of 106/ml), and K3 (spore density of 107/ml) on the intensity of attack of Thrips sp. So it is recommended to use the K4 treatment because it is effective against the intensity of attacks of Thrips sp
Pengaruh Komposisi Media dan Konsentrasi Pupuk NPK Terhadap Pertumbuhan Tanaman Kaktus (Gymnocalycium damsii var.multiproliferum): Effect of Media Composition and NPK Fertilizer Concentration on Growth of Cactus Gymnocalycium damsii var. multiproliferum
ABSTRACT
Cactus is a type of ornamental plant that is quite popular, so its development and reproduction is important. Cactus Gymnocalycium damsii var. multiproliferum can be propagated by shoots or saplings, but its growth is very slow. The success of cactus propagation is greatly influenced by the composition of the media and the nutrients provided. By choosing the planting media and providing the right nutrients, optimal growth of cactus saplings can be achieved. Malang sand is a planting medium with fine cavities that make it porous and light. NPK is a macro nutrient that is really needed to support plant growth and development. Research to obtain the right media composition and concentration of NPK fertilizer for the growth of Gymnocalycium damsii var multiproliferum cactus saplings was carried out using a factorial experiment using a completely randomized block design with 3 replications. The composition of the media is a ratio between soil: compost: Malang sand with 3 levels, namely: (1:1:1); (1:1:2) and (1:1:3) v/v. The concentration of NPK fertilizer consists of 4 levels, namely: 0; 1; 2 and 3 g/l. The results of the research showed that there was no interaction between planting media and konsentration of NPK fertilizer on growth of cactus . Concentration of NPK fertilizer 1 g/l gave the best results on plant diameter, plant height, shoot fresh weight, total fresh weight, root fresh weight, root length and root volume of the Gymnocalycium damsii var multiproliferum cactus sapling
Pengaruh Metode Pemupukan dan Berbagai Jenis Mulsa Terhadap Pertumbuhan dan Hasil Tanaman Stevia (Stevia Rebaudiana Bertoni) dengan Irigasi Tetes
This study wants to find the best fertilizing method and kind of mulch for better growth and yield of stevia. The research was conducted at October-February in PT. Daya Santosa Rekayasa, Karangploso, Malang at an altitude ±750 MAMSL. The research uses Split Plot Design using RBSL model with two factors and four replications. The first factor which is also used for the main plot is fertilizing method using fertigation (A1) and conventional method (A2). Second factor also uses as the subplot are black white plastic mulch (U1), rice straw mulch (U2), and without mulch (U3). Nondestructive variable was height of the plant and number of leaves. Destructive variable was observed in harvest time such as fresh weight of plant, fresh weight of yield, dry yield, root length, chlorophyll amount, and sucrose rate. The data will be tested using ANOVA and T-Test, if there is a significant difference, then will be processed again using Duncan Multiple Range Test (DMRT). The result showed that there is no significant interaction between the fertilizing methods and types of mulches in stevia. Fertigation and conventional method give no significant difference in growth or yield stevia but fertigation gives better result in every variable. Types of mulches show that black white plastic mulches give the best impact to height of the plant, number of leaves, fresh weight of plant, fresh weight of yield, dry yield, root length, and chlorophyll amount with fresh yield 11,4 gr each plant and also dry yield 2,27 gr
Efektivitas Isolat Nematoda Entomopatogen Steinernema sp. Produksi PPAH Kabupaten Kediri terhadap Mortalitas Larva Spodoptera frugiperda J. E. Smith
Spodoptera frugiperda J. E. Smith (Lepidoptera: Noctuidae) is a pest that has just entered Indonesia since 2019 and has adapted and become an important pest in corn plants. Therefore, we need a control by utilizing biological control agents that exist in nature, one of which is the entomopathogenic nematode type Steinernema sp. which has been developed by the Biological Agent Service Post (PPAH) "Sidodadi" in the Plosoklaten District, Kediri Regency. The methods used in this study were: collection and rearing of S. frugiperda pests; breeding of entomopathogenic nematodes Steinernema sp. in vivo. The application of an entomopathogenic nematode to test pathogenicity against 3rd instar S. frugiperda larvae. The application treatments used were population densities of 1.000 JI/ml, 800 JI/ml, 400 JI/ml, 200 JI/ml plus a control treatment. The study was designed with a single Completely Randomized Design (CRD) with six treatments and was repeated four times. Each replication consisted of 10 S. frugiperda larvae. Parameters observed included mortality of S. frugiperda larvae due to Steinernema sp.. Effectiveness of Steinernema sp. by calculating the LT50 value. Observation of biological symptoms of S. frugiperda infected with Steinernema sp. and calculation of the infection rate of Steinernema sp.. Data from observations were analyzed using a 5% ANOVA. If there is a significant difference, further DMRT testing is carried out. The effectiveness test was carried out by calculating the LT50 value using Finney's (1971) probit analysis. Based on observations for 120 hours, it was shown that entomopathogenic nematode PPAH isolate was effective in killing S. frugiperda larvae. PPAH isolate entomopathogenic nematode was effective in causing mortality in S. frugiperda larvae. The highest mortality value of S. frugiperda due to entomopathogenic nematode treatment was 97.5% in treatment with 800 JI/ml and 1000 JI/ml at 120 hours after application observation. The fastest LT50 value causing mortality in S. frugiperda larvae was in the 1000 JI/ml of 32.60 hours. The treatment with the longest LT50 value caused the mortality of 50% of the test insects, namely the 200 JI/ml over 95.88 hours. Observation of the infection rate showed the highest infection rate was found in the 1000 JI/ml at 24 hours after application with as many as 0.02% tails, this is because that the higher the inoculated entomopathogenic nematode population, the higher the infection rate value.  
Respon Perkembangan Dan Produksi Bawang Merah (Allium Ascalonicum L.) Dengan Aplikasi Jumlah Bibit Dan Pupuk Kandang Sapi: Response To The Development and Production of Onion (Allium Ascalonicum L.) With The Number of Seed and Cattle Manure Application
Shallots have the potential to be cultivated in Kediri because they suit the growing environment. The problems include the level of awareness of farmers regarding excessive use of inorganic fertilizers and the number of seeds used in shallot cultivation. The aim of the research is to study and measure the response to development and production by treating the number of seeds and administering cow manure. The method uses a factorial randomized block design with two factors. The first factor is the dose of cow manure (P) with 3 levels, namely (P0 = 0gr/polybag, P1 = 150gr/polybag, and P2 = 250gr/polybag). The second factor is the number of seeds (J) consisting of 3 levels, namely (J1 = 1 seed/polybag, J2 = 2 seeds/polybag, and J3 = 3 seeds/polybag). The data obtained was continued with statistical tests with the BNT 5% or DMRT 5% test. Based on the research results, there was no interaction between the treatment dose of cow manure and the number of seeds per polybag. However, there was a real effect on the single treatment of cow manure during the vegetative period on plant height (42 DAP), namely P2, namely 32.39 cm/polybek, number of leaves, namely J3, there were 39.1 leaves,/polybek Generative vase on the best number of tubers parameters. P2 with a total of 14.2/polybag and wet weight on P2 with a weight of 48.02 grams/polyba
Total Mikroba pada Tanah yang Dicemari Sludge Limbah Pabrik Kertas dengan Perlakuan Pupuk Guano
There are 83 paper mills in Indonesia recorded by the Indonesian Pulp and Paper Association (APKI) spread throughout the archipelago. These paper companies produce products in the form of tissues, various types of paper, and other fiber-based products. Efforts to meet the needs of this raw material produce innovations in the form of using waste paper by separating the ink from the fibers contained in the paper, this separation process is known as the deinking process. Paper mill solid waste can be in the form of sludge, pith, and biosludge. Sludge is a factory solid waste originating from the settling of WWTP which consists of 90% solid and 10% liquid. Paper mill waste in the form of solid waste from sludge contains heavy metals such as Cd, Cr, Pb, Ni, Cu, and Zn. These metals can be overcome by bioremediation using guano fertilizer which is an organic material derived from bat droppings which is rich in phosphate. The purpose of this study was to determine the microbial population in soil contaminated with paper mill sludge waste treated with guano fertilizer. The parameters observed in this study were the total number of bacteria and fungi that survive in soil contaminated with paper mill waste as an indication that the land can still be planted with certain plants. This research was conducted at the Laboratory of Soil Biology, Laboratory of Soil and Land Fertility Agrotechnopark – Faculty of Agriculture – University of Jember. This study used a 3x3 two factorial experimental design with the basic pattern of Randomized Block Design (RAK), namely between the concentration of paper mill effluent and the dose of guano fertilizer, each treatment was repeated three times. The microbial population can be determined by analyzing total bacteria, total fungi. Soil that had been contaminated with paper mill waste was incubated with guano fertilizer, each combination was analyzed at 15 hst and 30 hst for total bacterial and total fungal populations. During the incubation period, irrigation was carried out using a sprayer to maintain moisture in the incubation media. The results showed that the total population of bacteria and fungi in the growing media contaminated with paper mill sludge waste by administering different doses of guano showed results that were not significantly different, but the total population tended to increase. with increasing incubation period. Pollution of sludge waste in the planting medium has a significant effect on increasing the total Fungi Population when compared to the control. The relationship between paper mill effluent pollution and guano fertilization is very low with a coefficient of determination of less than 0.5
Perkembangan Penyebab Penyakit Busuk Lunak Pada Tanaman Buah Naga Merah (Hylocereus Polyrhizus) di Kabupaten Banyuwangi
Red dragon fruit (Hylocereus polyrhizus) is one of the most important commodities in Indonesia. The dragon fruit production center in Indonesia is located in Banyuwangi Regency with a production of 82,544 per year. Areas in Banyuwangi that produce large quantities of dragon fruit are Bangorejo, Pesanggaran, Silirangung, Purwoharjo, and Tegaldlimo. Dragon fruit is a type of plant that has a strong resistance, but there are many factors that can cause a decrease in production, one of which is OPT. Soft rot disease in dragon fruit is an example of a pest that attacks dragon fruit plants. This disease can cause physical, physiological, and chemical changes in dragon fruit plants that affect production yields. According to several sources of bacteria that cause soft rot disease is Pectobacterium. Pectobacterium will spread quickly if the surrounding conditions are supportive, such as environmental conditions, weather, temperature, and care carried out by farmers. 
Efektivitas Kombinasi Tanaman Refugia dan Pestisida Nabati dalam Menekan Populasi Hama Thrips (Thrips Sp.) pada Tanaman Cabai Merah (Capsicum Annum L.): The Effectiveness of A Combination Of Refugia Plants and Natural Pesticides In Suppressing The Population Of Thrips Pests (Thrips Sp.) In Red Chilli Plant (Capsicum Annum L.)
The purpose of this study was to determine the effect of a combination of refugia plants and botanical pesticides in suppressing the number of thrips on red chili plants. This research was conducted in October 2022-March 2023 in paddy fields, Sukorejo Village, Bangsalsari District, Jember Regency. The experimental design used was a randomized block design (RBD) with 4 treatments and 4 repetitions. The variables observed in this study were thrips pest population, pest attack intensity and chili production. The data obtained from the observed variables was then analyzed by ANOVA (Analysis of Variance) and to determine the effect between treatments, the Duncan Multiple Range Test (DMRT) was carried out at 5% level. Based on the results of the research, it was shown that the use of a combination of refugia plants and vegetable pesticides had a very significant effect on the observed variable of red chili fruit production and had a significant effect on the intensity of pest attacks, but showed no significant effect on thrips pest populations. Red chili plants with P3 treatment (marigold and tobacco leaf pesticides) had a significant effect in reducing the intensity of pest attacks and increased red chili fruit production, while chili plants treated with P2 (kenikir and tobacco leaf pesticides) had a significant effect in reducing thrips pest populations.