Berkala Ilmiah Pertanian
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Uji Keefektifan Ekstrak Puntung Rokok dalam Pengendalian Larva Spodoptera Litura Pada Tanaman Selada
Full text linkThe attack of Spodoptera litura larvae resulted in up to 75% damage to leaves on plants. The main use of synthetic pesticides has a negative impact on the environment and health such as decreasing the level of human immunity. To reduce this impact, there is a need for alternative control solutions that are more environmentally friendly. Cigarette butts contain nicotine, phenol, and eugenol. So that cigarette butts have the potential to be used as an alternative insecticide. Based on this, it is deemed necessary to conduct research to determine the effectiveness of cigarette butts as an insecticide. The aim of this study was to determine the effect of the concentration of insecticide on cigarette butts on mortality and speed of killing of Spodoptera litura larvae. The method used in this study was a Completely Randomized Design (CRD) with one factor, namely the concentration of cigarette butt insecticides with four treatments and repeated five times so that there were 20 experimental units. The treatments were P1 control, P2 at 10% concentration, P3 at 30% concentration, and P4 at 50% concentration. The results showed that the application of cigarette butt insecticides had a significant effect on the mortality rate and speed of killing of Spodoptera litura larvae. The P4 treatment gave the most effective results where within 24 hours after application it could kill >50% of the larvae tested and the rate of killing speed obtained was 1.7 birds per hour
Pengaruh Dosis Pupuk Bokashi dan Konsentrasi Pupuk Hayati Terhadap Pertumbuhan dan Hasil Tanaman Jagung Pulut (Zea Mays Var. Ceratina): Effect ff Bokashi Fertilizer Dosage And Biofertilizer Concentration On Growth and Yield of Waxy Corn (Zea mays var. ceratina)
Full text linkWaxy corn (Zea mays var. ceratina) has a shiny white color like wax because of its high amylopactin content. The use of chemical fertilizers can cause soil health to be disturbed and result in a decrease in cultivation yields. The use of organic fertilizers such as bokashi fertilizers and biological fertilizers is expected to be a solution in overcoming problems related to soil fertility and can increase cultivation yields. The purpose of this study was to determine the dosage of bokashi fertilizer and the concentration of biological fertilizers, as well as their interaction with the growth and yield of waxy corn. The study used a randomized block design consisting of 2 factors with 4 treatment levels, repeated 3 times. The first factor was the dose of bokashi fertilizer (A), which consisted of 4 levels, namely 0 tons/ha (A0), 15 tons/ha (A1), 20 tons/ha (A2), and 25 tons/ha (A3). ). The second factor was the concentration of biological fertilizers (B) which consisted of 4 levels namely, 0ml/L (A0), 15ml/L (A1), 20ml/L (A2), and 25 ml/L (A3). Further data were analyzed using analysis of variance. If the treatment parameters are significantly different, then the DMRT test is carried out with a level of 5%. The results showed that the interaction between the application of bokashi and biological fertilizers gave significantly different results on plant height and leaf area index. The dose of bokasi fertilizer had a significant effect on the length of the fruit with the husk, the length of the fruit without the husk, the weight of the fruit with the husk, the weight of 1000 seeds, the weight of the wet stover and the weight of the dry stover. Concentration of biological fertilizers significantly affected fruit diameter with husk, fruit weight with husk, fruit length without husk, fruit diameter without husk, fruit weight without husk, wet stover weight, and dry stover weight
Uji Kualitas Pupuk Organik Cair Kotoran Sapi dengan Beberapa Bioaktivator Terhadap Pertumbuhan dan Hasil Tanaman Bawang Merah (Allium Ascalonicum L.): Quality Test of Cow Manure Liquid Organic Fertilizer with Several Bioactivators on Growth and Yield of Shallots (Allium ascalonicum L.)
Full text linkThis 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.
 
Penentuan Laju Infiltrasi Tanah pada Beberapa Kondisi Vegetasi di Kebun Raya ITERA
Full text linkMeasuring the rate of infiltration in an area is important as one of the basic actions for land management. The existence of infiltration allows the soil to temporarily store water so that it is available for absorption by plants and soil organisms. The ITERA Botanical Gardens, which aims to conserve Sumatran plants ex-situ, needs to be supported by successful revegetation. The infiltration rate is an indicator of the physical condition of the soil during the revegetation process. The purpose of this study was to calculate the soil infiltration rate in the ITERA Botanical Gardens under different vegetation conditions, namely under sengon (Falcataria moluccana) and grass stands. This research is an experimental study that measures the rate of soil infiltration using a double ring infiltrometer with a diameter of 15 cm and 30 cm. The infiltration rate was then calculated based on data on changes in water level over time intervals (∆h) and changes in measurement time intervals (∆t) obtained from field measurements. Infiltration in the area of ITERA Botanical Gardens is influenced by the condition of the vegetation above the ground. Lowering of the water level in the ring on grassy land reaches a constant faster than under sengon stands. The infiltration rate under Albizia stands is faster than on land with grassy vegetation. This requires the act of planting vegetation that has deep roots, on land that is still planted with grass
Intensitas Serangan Wereng Batang Coklat (Nilaparvata lugens) Pada Beberapa Varietas Tanaman Padi di Kecamatan Kedungadem Kabupaten Bojonegoro
Full text linkRice (Oryza sativa L) is a food crop that is used as a staple food source and is an agricultural product that has a strategic and economic role in Indonesia. Bojonegoro is one of the districts that is a food barn in East Java Province. One of the things that can result in decreased rice crop production is the attack of Plant Pest Organisms (OPT). One of the pests that can cause attacks and damage to rice plants is the brown planthopper pest (Nilaparvata lugens). One example of brown planthopper pest attack in Bojonegoro Regency is located in Kedungadem District. The problems that arise due to leafhopper pest attacks on rice plants, need to know the bioecology of planthopper pests and their population density, so as to facilitate proper prevention and control measures, so that the pest population does not cross the economic threshold. This study aims to determine the intensity of attack by the brown planthopper (Nilaparvata lugens) on several varieties of rice plants in Kedungadem District, Bojonegoro Regency. The method used is direct observation every 1 week starting from 1 WAP to 12 MST and counting the brown planthopper pests found in the field. The villages used in the study were Jamberejo Village and Sidomulyo Village with 6 plots of land in each village. In each village, 3 samples of Ciherang variety and 3 fields of Inpari 32 variety were taken. he highest intensity of brown planthopper attacks in Sidomulyo and Jamberejo Villages was in week 7 with attack intensity in Sidomulyo Village of the Ciherang variety, Sidomulyo of the Inpari 32 variety, Jamberejo of the Ciherang variety, and Jamberejo of the Inpari 32 variety respectively were 21%, 17%, 17%, and 13% while the lowest attack intensity was in week 1 with an attack intensity of 0%.
 
Pengaruh Fungi Mikoriza Arbuskula dalam Aklimatisasi Planlet Kentang (Solanum Tuberosum L.) Kultivar Granola dan Atlantik Hasil Kultur Jaringan
Full text linkPotatoes are a commodity that has high carbohydrates after rice, wheat and paddy which makes potatoes one of the most popular commodities. The high level of seed-borne pathogen infection causes decreased productivity. Tissue culture is one of the methods used to minimize the level of pathogen contamination. The acclimatization phase is a very crucial phase because at this stage it is hoped that potato plants which were previously in in-vitro conditions can adapt to the in-vivo environment. Arbuscular mycorrhizal fungi are fungi that can form a symbiosis with plants. The symbiosis that occurs is that mycorrhizae are able to produce growth hormone which can also help in carrying out nutrient uptake. This experiment was conducted using a factorial Completely Randomized Design (CRD), which consisted of two factors. The first factor is potato cultivar which consists of granola cultivar (K1) and Atlantic cultivar (K2) and the second factor is mycorrhizal dose (M) which consists of 4 levels, namely without mycorrhizal (M0), mycorrhizal dose of 1 gram (M1), mycorrhizal dose of 3 grams (M2), and mycorrhizal dose of 5 grams (M3). The experimental results were analyzed using analysis of variance (ANOVA) and if there was a significant difference, further tests were carried out using the Least Significance Diffent (LSD) test at the 5% level. Based on the experimental results, it was shown that mycorrhizal administration had a significant effect on the parameters of plant height and leaf area. The potato cultivar factor did not have a significant effect on all observation parameters. As well as the treatment of mycorrhizal factors and potato cultivars did not show any interaction on all observation parameters
Respon Pertumbuhan dan Hasil Tanaman Selada Romaine (Lactuca Sativa L. Var. Longifolia) Terhadap Perbedaan Jarak Tanam Pada Smart Watering System SWU 02
Full text linkRendahnya produksi selada menunjukkan bahwa diperlukan upaya budidaya yang efektif dengan memanfaatkan lahan yang sempit yaitu dengan budidaya selada romaine secara hidroponik. Smart Watering SWU 02 dapat dijadikan sebagai salah satu upaya untuk meningkatkan produksi selada di Indonesia khususnya selada romaine karena dapat diaplikasikan dilahan yang sempit juga dapat mengurangi biaya produksi dikarenakan tidak menggunakan energi listrik. Selada romaine sangat bergantung pada cahaya matahari apabila kekurangan cahaya matahari maka akan mengalami etiolasi. Kurangnya cahaya matahari disebabkan karena jarak tanam yang terlalu rapat. Salah satu upaya yang harus dilakukan untuk menyelesaikan permasalahan tersebut adalah penerapan variasi jarak tanam yang tepat. Penelitian ini bertujuan untuk mengetahui pengaruh perbedaan jarak tanam terhadap pertumbuhan dan hasil tanaman selada romaine (Lactuca sativa L. var. longifolia) pada Sistem Smart Watering SWU 02 serta untuk memperoleh jarak tanam yang paling optimal untuk menunjang pertumbuhan dan hasil tanaman selada romaine (Lactuca sativa L. var. longifolia) pada Sistem Smart Watering SWU 02. Penelitian ini menggunakan metode eksperimental dengan rancangan acak lengkap (RAL). Jarak tanam yang digunakan yaitu 20 cm x 25 cm, 20 cm x 20 cm, 25 cm x 25 cm dan 12,5 cm x 12,5 cm masing-masing 3 ulangan. Hasil dari penelitian ini menunjukkan adanya pengaruh pertumbuhan dan hasil tanaman selada romaine terhadap perbedaan jarak tanam pada Smart Watering SWU02. Jarak tanam 20 cm x 25 cm merupakan jarak tanam terbaik diantara jarak tanam lainnya. Jarak tanam yang renggang mengurangi persaingan antar tanaman dalam mendapatkan cahaya matahari dan nutrisi sehingga tanaman mendapatkan cahaya matahari dan nutrisi optimal
POTENSI BIJI MAHONI (Switenia mahogany (L). Jack) SEBAGAI INSEKTISIDA NABATI UNTUK PENGENDALIAN HAMA Spodoptera Exigua Hubner PADA TANAMAN BAWANG MERAH
No full textBawang merah merupakan salah satu komoditas unggulan nasonal selain cabe dan kentang, hal tersebut dikarenkan bawang merah memiliki nilai ekonomi yang tinggi dan menjadi campuran bumbu masak yang wajib ada di dapur. Salah satu hama yang berpotesi untuk menjadi kendala produksi bawang merah ialah Spodoptera exigua Hubner. Insektisida nabati adalah pilihan yang tepat untuk pengendalian Organisme Penganggu Tanaman. Insektisida nabati menggunakan bahan-bahan dari tumbuhan yang memiliki khasiat racun bagi OPT, salah satu diantaranya adalah biji mahoni. Tujuan penelitian ini untuk mengetahui pengaruh pemberian insektisida biji mahoni terhadap mortalitas dan aktivitas S. exigua pada tanaman bawang merah dan untuk mengetahui konsentrasi yang tepat pemberian insektisida nabati biji mahoni untuk mengendalikan S. exigua pada tanaman bawang merah. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 4 ulangan diantaranya P0: kontrol, P1: 39 ml ekstrak/100 ml aquades, P2: 52 ml ekstrak/100 ml aquades, P3: 65 ml ekstrak/100 ml aquades dan P4: 78 ml ekstrak/100 ml aquades. Data yang diperoleh dianalisis menggunakan analisis of varians (ANOVA), apabila hasil menunjukkan pengaruh nyata maka akan dilakukan uji BNT pada taraf kepercayaan 5%. Hasil penelitian menunjukkan; (1) pemberian insektisida nabati biji mahoni berpengaruh terhadap mortalitas dan kerusakan daun pada tanaman bawang merah; (2) pemberian insektisida nabati biji mahoni dengan konsentrasi 78 ml ekstrak/100 ml aquades merupakan perlakuan terbaik dibandingkan dengan perlakuan lainnya
Respon Pertumbuhan dan Hasil Tiga Varietas Padi Gogo (Oryza sativa L.) pada Berbagai Kondisi Cekaman Kekeringan
No full textDrought has a direct impact on the agricultural sector. Dry land is one type of marginal land, because drought causes various negative impacts on plants. The long drought causes the water requirement for plants to stagnate so that the plants experience stress or experience drought stress conditions. Drought stress is an environmental condition where plants do not receive sufficient water intake, so that plants cannot carry out the process of growth and development optimally and production decreases. One way that can be done on the problem of drought is to identify several plant varieties to see the response and ability of plants to survive under stress conditions. The purpose of this study was to determine the effect of drought conditions, to determine the effect of upland rice varieties and the interactions that occur between upland rice varieties and various drought stress conditions on growth and yield. The research method used was a Factorial Completely Randomized Design (CRD). The first factor is 100% field capacity, 80% field capacity, 60% field capacity and 40% field capacity, while the second factor is Inpago 8 variety, Inpago 9 variety and Situ bagendit variety. The results of the research conducted showed that the level of drought stress had an effect on the growth and yield of upland rice plants. The higher the drought conditions experienced by plants, the growth and yields on plants are much lower and yields are less. This is because the availability of water for plants is not sufficient. The higher the drought conditions experienced by the plant, the longer the root length of the plant. This is because plants that experience drought stress in the vegetative phase will inhibit crown growth and increase root growth
PERUBAHAN SENYAWA DAN AKTIVITAS ANTIOKSIDAN PADA RIMPANG JAHE (Zingiber officinale) SELAMA FASE TUMBUH TUNAS
No full textJahe (Zingiber officinale) merupakan tanaman rempah dan herbal yang dimanfaatkan sebagai minuman atau campuran pada bahan pangan. Jahe memiliki nilai jual yang tinggi karena banyaknya permintaan konsumen baik untuk memenuhi kebutuhan rumah tangga maupun sebagai bahan baku perusahaan jamu dan makanan. Permasalahan utama pada budidaya jahe adalah sulitnya menjaga ketersediaan rimpang benih bermutu dalam jumlah cukup pada waktu yang diperlukan. Permasalah tersebut disebabkan oleh rendahnya mutu bahan tanaman, seperti umur panen dan penyimpanan yang tidak tepat. Jahe mengandung senyawa antioksidan alami yang secara farmakologis cukup tinggi dan mampu menghambat radikal bebas. Senyawa antioksidan yang terdapat pada jahe yaitu senyawa fenolik yang berupa golongan flavonoid, turunan asam sinamat, kumarin, dan asam-asam organik polifungsional. Senyawa fenolik pada jahe yang berperan sebagai antioksidan terdiri dari gingerol dan shogaol. Berdasarkan penelitian sebelumnya menyatakan bahwa penyimpanan pada rimpang jahe berpengaruh dalam kandungan senyawa antioksidan pada rimpang jahe. Begitu pula dengan seiring bertambahnya periode pertumbuhan tunas rimpang jahe maka aktivitas antioksidannya semakin meningkat. Penelitian ini bertujan untuk mengetahui mengenai pengaruh umur rimpang pada umur tumbuh tunas terhadap perubahan senyawa dan aktivitas antioksidan. Data yang diperoleh yaitu pada umur rimpang jahe berpengaruh terhadap perubahan senyawa dan aktivitas antioksidan pada rimpang jahe. Umur tunas jahe yang telah melalui proses penyimpanan tidak berpengaruh terhadap perubahan senyawa dan aktivitas antioksidan pada rimpang jahe.