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Pemupukan NPK Phonska dan Jenis Tumpang Sari Terhadap Pertumbuhan Tanaman Pisang Rutai (Musa borneensis Becc.) Purwati Purwati; Abdul Rofik
Agrifarm : Jurnal Ilmu Pertanian Vol 7 No 1 (2018): July
Publisher : Universitas Widya Gama Mahakam

Rutai banana plants are local plants from Kutai Kartanegara Regency. But the existence of this plant has begun to be rare in the farmer's garden. Rutai bananas are small and are very popular for many people because of their distinctive aroma and sweet taste with high vitamin content. The small fruit shape is very suitable to be an appetizer at restaurants or food stalls. The Kutai Kartanegara District Government has made Rutai banana as an obligatory appetizer in Kutai Kartanegara. From the results of research on rutai banana fertilization on farmers' land shows very high productivity so it is necessary to do research to determine the growth of rutai banana planted intercropping with food crops. This is because the rutai banana plant uses a spacing of 3 mx 3 m, so that between banana plants there is still room that can be used for cultivation of food crops. This study aims to examine the effectiveness of NPK Phonska fertilization and the type of intercropping in rutai banana cultivation. This study used a Randomized Block Design (RBD) consisting of 4 treatments with 5 replications. Intercropping treatment consists of 4 levels, namely: s0 = without intercropping, without fertilization, s1 = without intercropping and NPK Phonska fertilizer 0.5 kg / tree, s2 = intercropping of chili and Phonska NPK 0.5 kg / tree , s3 = intercropping of corn plants and 0.5 kg / tree Phonska NPK fertilizer. Data obtained from observations were analyzed by variance and further testing with BNT at the level of 5%. Research activities include (1) land preparation (2) planting rutai banana seeds and ginger seedlings (3) Phonska NPK fertilizer treatment (4) Bioculture fertilizer treatment (5) POC Nasa fertilizer treatment (6) maintenance (7) data collection. The results showed that NPK Phonska fertilization was 0.5 kg / tree and intercropping with corn plants showed the best growth of rutai banana.

Pemanfaatan Jamur Trichoderma sp Sebagai Antagonis Patogen Busuk Sulur Tanaman Buah Naga Merah (Hylocereus polyrhizus) Secara In Vitro Herlyan Prasetiyo; Purwati Purwati; Iin Arsensi
Agrifarm : Jurnal Ilmu Pertanian Vol 7 No 1 (2018): July
Publisher : Universitas Widya Gama Mahakam

Utilization of Trichoderma sp fungi as pathogenic fungi antagonists in red dragon fruit plants (Hylocereus polyrhizus) in vitro. The purpose of this study was to identify foul pathogens of dragon fruit plants and then test the ability of Trichoderma sp antagonists to deciduous pathogens of red dragon fruit plants in vitro. The study was conducted from August to October 2016, The research was conducted at the Laboratory of Pest and Plant Disease Sciences, Faculty of Agriculture, Mulawarman University, Samarinda. Sampling of plants exposed to foul tendrils was carried out in Bukit Merdeka Village, Samboja District, Kutai Kartanegara Regency. There are two data observed in this study, primary data and secondary data. Primary data is data obtained directly from the source through direct field observations and laboratory observations and secondary data data obtained from interviews with farmers. The results showed that the pathogen that causes tendon rot in dragon fruit plants is the fungus Colletotrichum gloesporioides (penz. Ssaac). Trichoderma sp can inhibit the development of pathogens Colletotrichum gloesporioides (Penz.) Ssaac., With the highest average resistance of 71.85%.

Biodiversitas Mikroba Rizosfer Tanaman Jeruk Keprok Borneo Prima (Citrus reticulata cv Borneo Prima) Purwati Purwati; Hamidah Hamidah
Agrifarm : Jurnal Ilmu Pertanian Vol 7 No 2 (2018): December
Publisher : Universitas Widya Gama Mahakam

Borneo Prima tangerine (Citrus reticulata cv Borneo Prima) is an indigenous plant from Tanjung Labu Village, Rantau Pulung District, East Kutai District, East Kalimantan Province. In the cultivation of these plants, there are pathogens that can cause a decrease in crop yields. This study aims to identify the diversity of rhizosphere microbial populations in Borneo Prima tangerine plants. The study was conducted at the Laboratory of Plant Pests and Diseases of the Faculty of Agriculture, Mulawarman University Samarinda in February-April 2018. This study was descriptive, using a survey method. The study consisted of two stages, namely (1) soil sampling on Borneo Prima tangerine citrus land in Makroman Village, Kutai Kartanegara Regency, East Kalimantan (2) isolation, characterization, identification, gram test, in the Laboratory of Pests and Plant Diseases. The data obtained were analyzed using quantitative descriptive analysis. The results of the study of the isolation of rhizosphere microbes in Borneo Prima tangerine citrus plants obtained 1 family of bacteria namely Azotobacteraceae and 4 fungal genera including Aspergilus, Mucor, Penicillium and Trichoderma. Microbes that belong to the group that benefit the soil ecosystem are Azotobacteraceae because they play a role in fixing (fixation) N2 or as biofertilizers. While the genus Mucor and Penicillium act as decomposers and Trichoderma acts as a controller of pathogens or biological agents and biological pesticides (biopestiside).

Pengaruh Konsentrasi dan Interval Agens Hayati Pseudomonas Fluorescens dalam Menghambat Perkembangan Penyakit Bercak Ungu Tanaman Bawang Merah (Allium ascalonicum L.) Rudini Rudini; Iin Arsensi; Purwati Purwati
Agrifarm : Jurnal Ilmu Pertanian Vol 5 No 2 (2016): December
Publisher : Universitas Widya Gama Mahakam

Effect of Concentration and Interval Pseudomonas Fluorescens Biological Agents In Inhibiting the disease Growth purple patches Plants Onion (Allium ascalonicum L). This study aims to determine the effect of concentration and interval administration Pseudomonas fluorescens agents in inhibiting the development of spot disease purple onion crop. This research was conducted in the District of Samarinda Seberang, Samarinda, East Kalimantan using a randomized block design (RBD) with 5 treatments and 3 replications. The first factor is the concentration of Pseodomonas fluorencens with 5 levels: p0 = control, p1 = 5 ml / liter of water / plant, p2 = 10 ml / liter of water / plant, p3 = 15 ml / liter of water / plant, p4 = 20 ml / liter water / plant. While the second factor is the interval Pseodomonas fluorencens with 3 levels: i1 = 1 week, 1 x application until the age of 60 days, i2 = 2 weeks, 1 x application until the age of 60 days, i3 = 3 week 1 x application to the age of 60 days. Observation frequency and intensity showed no symptoms of disease purple spots, results of analysis of variance showed that the Pseudomonas Fluorescens Biological Agents (P) very significant effect on plant height increment 6 WAP. Further significant effect on the number of bulbs and tuber weight. the influence of the interval (I) had no significant effect on plant height parameter 3 WAP, 6 WAP and WAP, number of tillers, tuber number and weight of tubers. Results of analysis of variance showed that the interaction of Pseudomonas Fluorescens Biological Agents and Interval Giving. no real effect on plant height parameter 3 WAP, 6 WAP and 9 WAP, number of tillers, tuber number and weight of tubers.

Pertumbuhan Tanaman Kakao (Theobroma cacao L.) Belum Menghasilkan pada Pemberian Pupuk NPK Phonska Purwati Purwati
Agrifarm : Jurnal Ilmu Pertanian Vol 8 No 1 (2019): July
Publisher : Universitas Widya Gama Mahakam

The aim of the study was to determine the growth of immature cocoa plants in the provision of NPK phonka fertilizer. This research was conducted from February to May 2016 in North Samarinda District, East Kalimantan. The study used a randomized block design with five replications. The treatment of NPK Phonska fertilizer (N) consists of 3 levels, namely control (n0), 250 g / plant (n1), 500 g / plant (n2). Data were analyzed statistically and tested further with the smallest significant difference test (LSD) at the level of 5%. The results showed that the best growth of cocoa plants was the administration of Phonska NPK 500 g / plant.

Identifikasi Jenis dan Tingkat Serangan Hama Pada Pembibitan Tanaman Kelapa Sawit (Elaeis guineensi Jacq) di PT. Sentosa Kalimantan Jaya, Kabupaten Berau Provinsi Kalimantan Timur Andi Nur Cahya; Iin Arsensi; Purwati Purwati
Agrifarm : Jurnal Ilmu Pertanian Vol 8 No 1 (2019): July
Publisher : Universitas Widya Gama Mahakam

Identification of Types and Levels of Pests Attack on Palm Plantation Seedlings (Elaeis guineensis Jacq) at PT. Sentosa Kalimantan Jaya, Berau District East Kalimantan Province. Under the guidance of Iin Arsensi and Purwati. This study aims to determine the types of pests that attack oil palm seedlings, the frequency and intensity of oil palm pest attack on the Main Nursery stage nursery. The research was arranged in Survey method, determining 5 research plots in one block diagonally by marking on each plot with plastic marker of seeds, so obtained 15 research plots contained in 3 block that is block J, I and D. Each research plot consists of 30 Oil palm seedlings so that the number of observed 450 seeds of oil palm. The results showed that the types of pests that attack the oil palm seedlings in Main Nursery are Tungau (Tetranychus piercei), Adoretus compressus Beetle, and Locusta migratoria manilensis (Locusta migratoria manilensis); Block Frequency A pest attack in the category of minor attacks is 51.33%, 24% attack, while the intensity of pest attacks is a mild attack category; Frequency of Block I attack of pests in light attack category is 49,33%, moderate attack 37,33%, heavy attack 2%, while intensity of pest attack moderate attack category; Frequency of Block D attack of pest in light attack category is 41,3%, moderate attack 41,3%, severe attack 7,3%, while intensity of pest attack moderate attack category;

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