Berkala Ilmiah Pertanian
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Pengambilan Keputusan Konsumen dalam Membeli Bawang Merah di Pedesaan: Sebuah Analisis Deskriptif
Full text linkBawang merah merupakan salah satu kebutuhan utama bagi rumah tangga khususnya di Kabupaten Jember. Adanya perubahan harga yang sering terjadi menyebabkan perubahan terhadap keputusan konsumen dalam membeli bawang merah. Tujuan penelitian ini adalah untuk menganalisis keputusan konsumen dalam membeli bawang merah di Kabupaten Jember. Penelitian ini menggunakan metode survey dengan jumlah responden sebanyak 120 orang. Analisis data yang digunakan adalah analisis deskriptif. Hasil analisis menunjukan bahwa keputusan konsumen dalam membeli bawang merah memperhatikan terkait dengan ukuran bawang, kebiasaan, dan harga. Informasi terkait pembelian bawang merah sebagian besar berasal dari penjual, teman dan diri sendiri. Informasi yang penting bagi konsumen meliputi kondisi fisik, dan harga bawang merah. Pembelian bawang merah biasanya dilakukan tergantung situasi konsumen dengan frekuensi pembelian 4 kali dalam sebulan. Keputusan pembelian sangat tergantung pada istri/ibu rumah tangga. Berdasarkan harga, bawang merah dianggap tidak terjangkau oleh konsumen karena sering mengalami kenaikan. Konsumen juga akan tetap membeli bawang jika harga naik karena merupakan kebutuhan utama. Selain itu, konsumen memilih tempat belanja yang dekat dengan tempat tinggal
Pengaruh Jenis dan Konsentrasi Pupuk Organik Cair Terhadap Pertumbuhan dan Hasil Tanaman Kailan (Brassica Oleraceae L.) dengan Sistem Hidroponik Substrat
Full text linkIn Indonesia, kailan plants are classified as new plants but have quite large prospects, however, kailan production in Indonesia is still relatively low and is not comparable to the increasing demand for kailan and the availability of agricultural land which is still limited. The use of liquid organic fertilizer with the application of a substrate hydroponic cultivation system is a good alternative in a cultivation system to increase yields in terms of quality and quantity. It is necessary to do research on the effect of the right type and concentration of liquid organic fertilizer for kailan plants. This study aims to determine the effect of the right type of liquid organic fertilizer and the concentration of good liquid organic fertilizer on the yield of kailan plants. The research was conducted in August-October 2022 which took place in Patrang, Jember Regency. This study used the RAL method (Completely Randomized Design) which was arranged in a factorial manner consisting of 2 treatment factors which were applied to kailan plants which were repeated 3 times. The first factor is the type of liquid organic fertilizer (P), which consists of three levels, namely: Rabbit Urine (P1), Nasa (P2), and Cow Biourine (P3). The second factor was the concentration of liquid organic fertilizer (K) which consisted of 4 levels, without POC treatment (K0); 10 ml/l water (K1); 20 ml/l water (K2); 30 ml/l water (K3); 40 ml/l water (K4). The data obtained will be analyzed using analysis of variance (ANOVA). Treatments with significantly different effects were further analyzed using Duncan's test at the 5% level. Based on the data and discussion of the research that has been done, it can be concluded that the best type of liquid organic fertilizer concentration treatment is the Nasa liquid organic fertilizer type treatment, while the more efficient liquid organic fertilizer concentration treatment used to be applied in the kailan cultivation system is the kailan plant treatment. concentration of liquid organic fertilizer 30ml/L. There is an interaction between the types of liquid organic fertilizer treatment at the concentration level of liquid organic fertilizer on the plant wet weight parameter
Analisis Sifat Fisiologi Dalam Daun Sebagai Bahan Seleksi pada Beberapa Klon Kopi Arabika (Coffea Arabica L.): Analysis of Physiological Properties in Leaves as Selection Material for Several Clones of Arabica Coffee (Coffea arabica L.)
Full text linkThe coffee plant (Coffea) is one of the main types of plants in Indonesian society. Coffee plantations in Indonesia are very influential on the national economy. Several types of Arabica coffee clones began to be developed in order to have certain resistance to overcome attacks by various OPT which had a considerable impact on harvest success. The existence of resistance genes in plants, suitability with virulent genes and environmental influences become obstacles in making coffee clones that are resistant to certain pests. The physiological properties of coffee plants will affect the rate of growth and development of plants so that it will have an impact on their production. Selection of plant varieties is carried out to obtain certain superior characters with high yield potential. An analysis of the physiological properties must be carried out to identify and determine the desired selection criteria. This research was conducted at the Laboratory of the Faculty of Agriculture, University of Jember in June – end, using a single factor Completely Randomized Design (CRD), namely several Arabica coffee clones. Arabica coffee clone consists of 15 clones. Each clone was repeated three times, so that in this experiment there were 45 experimental units. Observational data obtained were analyzed using variance. If there is a significant difference between the treatments then proceed with Duncan's multiple range test at the 5% level. Based on the data and discussion of the research that has been done, it can be concluded that the fifteen arabica clones have different characteristics. The best Arabica coffee clone is the Sigararutang coffee clone which has a high value with (76.76 mg/g) chlorophyll content, (4.15 mg/g) flavonoid content, (7.07 mg/g) phenol content, ( 0.89 mg/g) dissolved protein content and (86.94 mg/g) antioxidant content.
Keywords: Coffee clones, chlorophyll, flavonoids, phenols, soluble proteins, antioxidant
Pengaruh EM4 dan Jarak Tanam terhadap Pertumbuhan dan Hasil Tanaman Stevia (Stevia rebaudiana Bertoni) dengan Irigasi Tetes
Full text linkThe purpose of this study was to determine the effect of stevia plant growth and yield on differences in EM4 concentrations and combinations with three different spacings. The experimental design used was a factorial randomized block design (RBD) with two research factors. The first factor was the EM4 concentration which consisted of 4 levels, namely A0 = 0% EM4 concentration, A1 = 25% EM4 concentration, A2 = 50% EM4 concentration, and A3 = 75% EM4 concentration. The second factor was the use of three different spacings, namely 25 cm x 25 cm, 30 cm x 30 cm, and 40 cm x 40 cm. The observation variables used in this study were plant height, number of leaves, fresh leaf weight, plant fresh weight, leaf dry weight, and root length. The data analysis used was ANOVA analysis of variance by conducting the F test at the ANOVA level α = 0.05. The F test was conducted to determine whether there was an effect of EM4 and spacing on the growth and yield of stevia plants. If the F-count is greater than the F-table, it indicates that there is a significant difference, then a follow-up DMRT test is performed with a p = 0.05 confidence level. The results showed that there was an interaction between the various spacings and the application of EM4 which had a highly significant effect on the variable plant height observed and a significantly different effect on the number of leaves observed. The single factor of the various plant spacings had highly significant different effects on the observed root length variables, as well as significantly different effects on the number of leaves, plant height, leaf fresh weight, plant fresh weight, and dry weight. leaf. The single factor EM4 had a significantly different effect on the variable plant height and number of leaves observed. Treatment distance of 30 cm x 30 cm (L1) and 50% EM4 concentration (A2) gave the best effect
Analisis Spektroskopi Air Kelapa dan Biji Chia sebagai Minuman Kesehatan
Full text linkMinuman yang bagus kesehatan adalah air putih atau air yang mengandung senyawa bioaktif dan zat gizi seperti mineral dan lainnya. Air kelapa yang masih muda sangat disukai oleh masyarakat karena rasanya segar dan memiliki zat aktif yang berguna untuk menangkal racun dan menambah nilai gizi yang alami baik untuk tubuh kita dan bagi olahragawan. Perlu dilakukan penelitian inovasi minuman kesehatan dari campuran air kelapa dan biji chia untuk memeroleh khasiat yang baik bagi tubuh saat dan setelah beraktivitas olahraga dan lainnya. Tujuan penelitian ini adalah untuk mengetahui potensi campuran air kelapa dan biji chia sebagai minuman olahraga. Metode penelitian yang dilakukan adalah preparasi minuman dari air kelapa dan biji chia, kemudian dilakukan analisa spektroskopi AAS untuk mengetahui kadar mineral Na, K, Ca, dan Mg. Selanjutnya dilakukan analisa spektroskopi FTIR untuk mengetahui kandungan senyawa antioksidan. Untuk mengetahui aktivitas atioksidan dilakukan dengan metode DPPH dan spektroskopi Uv-Vis. Hasil penelitian menunjukkan bahwa kandungan Na pada tiap sampel berturut-turut AKC 1 : 635,66 mg/kg, AKC 2 638,79 mg/kg, AKC 3 : 639,21 mg/kg, AKC 4 : 639, 98 mg/kg. Kandungan K pada tiap sampel berturut-turut K berturut-turut AKC 1 : 242,93 mg/kg, AKC 2 : 244,57 mg/kg, AKC 3 : 245,72 mg/kg, AKC 4 : 246,02 mg/kg. kandungan Ca pada tiap sampel berturut-turut AKC 1 : 550,18 mg/kg, AKC 2 : 556,49 mg/kg, AKC 3 : 555,26 mg/kg, AKC 4 : 556,78 mg/kg. kandungan Mg berturut-turut AKC 1 : 30,55 mg/kg, AKC 2 : 31,67 mg.kg, AKC 3 : 31,92 mg/kg, AKC 4 : 32,01 mg/kg. Hasil spektroskopi FTIR menunjukkan tiap sampel mengandung senyawa antioksidan kampferol, myrisetin, quercetin, asam sinamat, dan asam kafeat. Hasil uji aktivitas antioksidan menunjukkan bahwa aktivitas antioksidan masing-masing sampel termasuk kuat dengan IC50 berturut-turut AKC 1 : 62,98 ppm, AKC 2 : 63,19 ppm, AKC 3 : 65,02 ppm, AKC 4 : 65,85 ppm. Kesimpulan dari penelitian ini adalah dari hasil spektroskopi menunjukkan campuran air kelapa dan biji chia memiliki kandungan yang bermanfaat bagi tubuh. Campuran air kelapa dan biji chia berpotensi sebagai minuman kesehatan dengan formula terbaik adalah AKC 4 dengan formula air kelapa dan biji chia 200 ml : 10 gram
Perkembangan Penyakit Moler (Fusarium Oxysporum F.Sp Cepae) pada Sentra Produksi Bawang Merah di Kabupaten Probolinggo
Full text linkEast Java also has a shallot production center, namely in the Probolinggo area. Generally, residents of the Probolinggo area make a living as farmers. The land cultivated as agricultural land is generally one's own. The area of land owned by farmers is in the range of 0.25 meters to above 1 hectare. The land is generally used to cultivate horticultural crops, especially shallots. This farmer in Probolinggo chose the cultivation of shallot crops because it has high economic value and growing potential. Onion plants are vegetable crops in the form of bulbs with high economic value, because almost every household consumer needs them. This shallot can be used as a seasoning in cooking or as medicine. As a result, the need for shallots has increased so that many farmers cultivate onion crops intensively. Currently, the cultivation of onion plants is experiencing disturbances due to the attack of moler disease caused by the fungus Fusarium oxysporum f.sp. cepae (FoCe). FoCe fungus is a fungus that causes moler disease in onion crops. The disease can affect both the roots and bulbs of onions. Symptoms caused by onion plants are rotting of the roots so that they are easily removed, leaves drooping, twisting, shriveling, and rotting, as well as rotting of the bulbs and there is a white fungus that can cause the onion plant to die. This fungus can be transmitted from one plant to another through the soil.This study was conducted to determine the development of F.oxysporum disease in the onion production center in Probolinggo Regency. This research was conducted in several sub-districts, namely in Pajarakan District, Gending District, and Dringu District. Data collection on the development of moler disease using qualitative data from interviews with onion growers. The data used is in the form of observations of the impact of moler disease which is common to attack onion plants. The variables asked during the interview were the symptoms of moler disease that occurs when attacking onion plants, the factors causing the spread of moler disease in shallots, and the impact of moler disease attacks on onion plants. The data obtained were then analyzed using descriptive to describe the development and characteristics of the pathogen Fusarium oxysporum. The results showed that the development of moler disease in shallot production centers in Probolinggo Regency, especially in Pajarakan District, Gending District, and Dringu District, has a high incidence and severity of the disease. This is caused by internal factors such as the selection of varieties that are less resistant and the presence of external factors such as the tendency of farmers not to spray fungicides on planting. The characteristics of the fungus F. oxysporum observed in PDA media by taking onion samples in three districts, namely pajakan, gending and drigu, have a white color at the beginning of development and subsequently yellow or cream, shaped like cotton and circular
Keterkaitan Antara El Niño-Southern Oscillation (ENSO) Dengan Variabilitas Curah Hujan Bojonegoro
No full textIndonesian climate, especially Java Island have been associated with El Niño-Southern Oscillation (ENSO). The research using rainfall station at Bojonegoro District from 1979 – 2009 to detect rainfall variability and its linkages with ENSO phenomenom. ENSO’s indexes then used to predict rainfall in Bojonegoro. Rainfall station was clustered using cluster analysis and then Mann-Kendall test used to predict rainfall trend of each cluster. There are 16 rainfall station that passed the rainfall test that can be conduct in the rainfall anomaly analysis. All stations have experienced both dry and wet anomalies during observation. Positive ENSO years have associated with more stations experienced dry anomalies; in other hand wet anomalies occurred more when negative ENSO. The stronger ENSO caused more extrem anomalies. There are obtained 5 clusters rainfall area over Bojonegoro District used HCA Ward method. Largest rainfall variations was experienced by cluster 5, Gondang and Jatiblimbing. Trend in rainfall only experienced by cluster 2 (Sumberejo and Mekuris) for December – January but another clusters didn’t experience such significant rainfall pattern change. October and November have been the most influenced month caused by ENSO; and positive ENSO anomaly caused prolonged dry season up to November. October and November’s rainfall can be predicted using SSTA Nino 3.4 index 3 months before.
 
Perbaikan Beberapa Karakteristik Limbah Cair Tahu Menggunakan Variasi Jumlah Tanaman Kangkung (Ipomoea Aquatica) dan Tanaman Kiambang (Pistia Stratiotes)
Full text linkIndustri pabrik tahu menghasilkan limbah cair tahu sebagai bahan sisa produksinya. Limbah cair tahu yang tidak dikelola akan menimbulkan permasalahan seperti pencemaran ketika dibuang ke sungai. Bahan organik di dalam limbah cair tahu sangat tinggi, proses dekomposisi diperlukan supaya dapat terdegradasi. Karakteristik limbah cair tahu memiliki konsentrasi DO yang rendah, TSS tinggi, dan pH asam. Penggunaan tanaman kangkung dan kiambang berfungsi untuk mengelola limbah cair tahu supaya sesai dengan Peraturan Menteri Lingkungan Hidup No. 05 Tahun 2014 tentang baku mutu air limbah tahu. Tanaman kangkung dan kiambang memiliki potensi untuk memperbaiki karakteristik limbah cair tahu. Tujuan dari penelitian ini yaitu mengetahui pengaruh variasi jumlah tanaman kangkung dan kiambang, serta konsentrasi limbah cair tahu terhadap perbaikan beberapa karakteristik limbah cair tahu. Penelitian disusun dengan Rancangan Acak Lengkap (RAL) faktorial menggunakan dua faktor dan pengulangan sebanyak tiga kali. Faktor pertama yaitu jumlah tanaman terdiri dari tanpa tanaman (T0), 15 tanaman kangkung (T1), 30 tanaman kangkung (T2), 15 tanaman kiambang (T3), dan 30 tanaman kiambang (T4) dan faktor kedua yaitu konsentrasi limbah cair tahu terdiri dari konsentrasi 75% (K1) dan konsentrasi 100% (K2). Variabel yang diamati yaitu DO, TSS, TDS, pH, tinggi tanaman, berat basah tanaman, jumlah daun, persentase kematian tanaman. Data dianalisis dengan ANOVA jika berbeda nyata dilakukan uji Duncan dengan taraf 5%. Faktor tunggal jumlah tanaman hari ke-7 menunjukkan pengaruh berbeda sangat nyata pada DO dan TSS, berbeda nyata pada TDS, serta berbeda tidak nyata pada pH. Faktor tunggal konsentrasi limbah hari ke-7 menunjukkan pengaruh berbeda sangat nyata pada TSS, berbeda nyata pada TDS, serta berbeda tidak nyata pada DO dan pH. Perlakuan terbaik adalah T4K1 dengan konsentrasi DO tertinggi dan TSS terendah. Tanaman kiambang tidak efektif digunakan untuk limbah dengan pH asam karena akan mengalami kematian serta tanaman kangkung masih belum efektif untuk memperbaiki beberapa karakteristik limbah cair tahu
Perencanaan Penggunaan Lahan Untuk Pengembangan Budidaya Tembakau di Kabupaten Temanggung
Full text linkTobacco is one of the importan commodities in Temanggung Regency. Temanggung’s tobacco has a nicotine content from 3 – 8%, so it is used as one of the main flavoring ingredients in manufacture of cole cigarettes. The rapid development of tobacco cultivation land in Temanggung Regency was not followed by site selection according to land capability class and land suitability. The aim of this study were to, 1) calculate the aviability of land for the development of tobacco cultivation, 2) determine the land suitability class for tobacco cultivation. The matching method is use in land suitability class. Extensification of tobacco cultivation land in temanggung regency can be carrie out on land with suitability class S3 (according to marginal) covering an area of 17.490,90 ha, covering a dry area of 11.975 ha; rainfed rice fields 3.622,9 ha; and shurbs 1.893 ha . Actual land suitability class of land aviable, among others S3na (8.293,98 ha), S3nr,na (3.621,96 ha), S3rc,na (2.389,78 ha), S3tc,nr,na (1.014,93 ha), S3tc,na (787,04 ha), S3tc (402,73 ha), S3tc,nr (343,43 ha), and S3tc,rc (1,17 ha). Potential land suitability class of land aviable, among others S2na (8.293,98 ha), S2nr,na (3.621,96 ha), S3tc (2.548,13 ha), S3rc (2.389,78 ha), and S3tc,rc (1.17 ha)
Analisis Stomata dan Pigmen Daun Jambu Kristal di Laboratorium Mikroteknik Departemen Agronomi dan Hortikultura IPB Bogor
Full text linkJambu kristal adalah salah satu buah yang menarik secara penampilan, bentuk, aroma, dan nutrisi. Beberapa kultivar memliki kandungan asam askorbat empat kali lebih tinggi daripada jeruk (lebih dari 200 mg per 100 g) serta memiliki kandungan kalori yang rendah. Penelitian ini bertujuan untuk mengetahui kadar pigmen yang terdapat di daun muda daun tua, untuk Mengetahui kerapatan stomata, tebal daun, dan tebal jaringan palisade pada tanaman jambu kristal. Pengamatan bunga dan buah jambu kristal dilakukan di kebun percobaan IPB Leuwikopo dari bulan September sampai pertengahan Desember 2021. Analisis stomata daun dilakukan di Laboratorium Mikroteknik Departemen Agronomi dan Hortikultura IPB Bogor. Analisis pigmen daun dan kualitas buah dilakukan di Laboratorium Pascapanen Departemen Agronomi dan Hortikultura IPB Bogor. Analisis data menggunakan Uji t dikerjakan menggunakan MS Excel dengan tingkat kepercayaan 0,05