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PENGARUH PEMBERIAN KALIUM TERHADAP FISIOLOGIS DAN MORFOLOGIS KEDELAI PADA CEKAMAN KEKERINGAN Romi Fahri; Siti Khairani
AGRORADIX : Jurnal Ilmu Pertanian Vol 6 No 2 (2023): Juli 2023
Publisher : Agroteknologi Fakultas Pertanian Universitas Islam Darul 'Ulum (UNISDA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/agroteknologi.v6i2.4275

Domestic soybean production is weakened by the problem of drought stress that affects all aspects of plant growth and metabolism, while an alternative that can be used is the use of potassium. Potassium is believed to have an important role in increasing plant tolerance to drought. This study aims to examine the effect of potassium application on the physiological and morphological of drought-stressed soybean. The research was conducted in a plastic house in Aras Kabu Village, Beringin Subdistrict, Deli Serdang Regency, North Sumatra using a group randomized design with two factors and three replications. The first factor was soil moisture condition consisting of 80% KL (field capacity) and 40% KL. The second factor was potassium fertilizer application of 100 kg/ha, 200 kg/ha, 300 kg/ha, and no potassium fertilizer. The observed variables were total sugar and leaf area. The results showed that the use of potassium can increase the value of total sugar and leaf area of drought-stressed soybean. Application of K dose of 100 kg/ha (0.5 g/polybag) is the most appropriate to encourage physiological and morphological drought stressed soybean plants.

Morphology of two varieties of sweet corn when applied with cow dung fertilizer Mukhlis, Ahmad; Fahri, Romi; Khairani, Siti
Contributions of Central Research Institute for Agriculture Vol. 18 No. 3 (2024): July: Agriculture and related sciences
Publisher : Central Research Institute For Agriculture

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59651/cceria.v18i3.155

Sweet corn is an agricultural commodity that is very popular with the public because of its many benefits. In Indonesia, sweet corn can be used as a source of food, feed and industrial raw materials. However, the demand for sweet corn in Indonesia is high, resulting in not all needs being met. Efforts that can be made to increase sweet corn production are by using high-yielding varieties and by providing organic fertilizer which can minimize the residue effects caused by inorganic fertilizer. This research aims to determine the effect of two varieties of sweet corn on the growth and production of sweet corn, to determine the correct dose for applying cow dung compost fertilizer on the growth and production of sweet corn and to determine the interaction between two varieties of sweet corn and the dose of cow dung compost fertilizer on the growth and production of sweet corn. This research used a factorial Randomized Block Design (RBD) with 2 factors and 4 replications. The first factor is the use of two varieties of sweet corn, namely V1 (bonanza) and V2 (talenta). The second factor is the application of compost fertilizer at 3 levels, namely: P0 (without organic fertilizer), P1 (600 g/plant hole (equivalent to 12 kg/plot)), P2 (750 g/plant hole (equivalent to 15 kg/plot) ). The results of the research showed that the bonanza variety is better in growth which can be seen in the parameters of plant height, number of leaves and leaf area when compared to the talenta variety. Providing cow dung fertilizer can increase plant height, number of leaves and leaf area. A dose of 600 g/plant is the most efficient dose of cow dung fertilizer for the growth of sweet corn plants.

Respon Pertumbuhan Pada Kacang Panjang (Vigna sinensis L.) Terhadap Pemberian Pupuk Organik Cair (POC) Nasa dan Pupuk NPK Fidel Kasfar; Siti Khairani; Romi Fahri
Agroprimatech Vol. 8 No. 1 (2024): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v8i1.4964

Long bean plants are a horticultural commodity that has the potential to be developed because they have quite high nutritional and economic value. In order for long beans to grow optimally, organic and inorganic fertilizers can be applied. This research aims to determine the effect of providing organic and inorganic fertilizers and the correct dosage on the growth of long beans. This research used a factorial Randomized Block Design (RBD) with 2 factors and 3 replications. The first factor is the application of Nasa liquid organic fertilizer (LOF) at 4 levels, namely: C0 (0 ml/liter of water/control), C1 (2 ml/liter of water), C2 (4 ml/liter of water) and C3 (6 ml /liter of water). The second factor is the application of NPK fertilizer at 4 levels, namely: N0 (control), N1 (dose 200 kg/ha or 20 g/plot), N2 (dose 300 kg/ha or 30 g/plot), N3 (dose 400 kg /ha or 40 g/plot). The research results showed that Nasa LOF application and NPK fertilizer had a significant effect on plant height at 15 and 30 days after planting (DAP), number of branches at 15 and 30 DAP and flowering age.

Respon Pemberian Pembenah Tanah Asam Humat Terhadap Pertumbuhan dan Produksi Jagung Manis (Zea mays L. var. Saccharata) Trimansyah, Trimansyah; Fahri, Romi; Novianty, Lily
JURNAL AGROPLASMA Vol 11, No 2 (2024): JURNAL AGROPLASMA VOLUME 11 NO 2 TAHUN 2024
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v11i2.6190

Sweet corn (Zea mays L. var. saccharata) is a variety of corn that differs from regular corn due to its sweet taste, which is caused by its high sugar content. The productivity of sweet corn in the country is still low compared to other producing countries. The application of humic acid soil conditioner can enhance the absorption of micro and macro elements in plants. Humic acid can also improve plant growth by increasing bioavailability and nutrients through soil environment improvement around the roots. This study aims to determine the effect of humic acid soil conditioner and the appropriate dosage on the growth and yield of sweet corn. The study used a Non-Factorial Randomized Block Design (RBD) with 4 treatment levels: (H0: without humic acid soil conditioner (control), H1: 5 kg/ha, H2: 10 kg/ha, H3: 15 kg/ha). The results showed that the application of humic acid soil conditioner can increase plant height, cob diameter, and cob length of sweet corn. The best dosage of humic acid organic fertilizer for the growth and yield of sweet corn is 15 kg/ha. Keywords : sweet corn, soil conditioner, humic acid

INFLUENCE OF RAINFALL ON DOWNY MILDEW INTENSITY, PRODUCTIVITY, AND SYMPTOMS OF Peronosclerospora spp. ATTACK IN MAIZE CROPS IN SIMALUNGUN REGENCY Murni Radiah; Syamsafitri; Murni Sari Rahayu; Romi Fahri
International Journal of Social Science, Educational, Economics, Agriculture Research and Technology (IJSET) Vol. 4 No. 8 (2025): JULY
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54443/ijset.v4i8.869

Maize is one of the world's food crops, and Simalungun Regency is one of the corn production centers in Indonesia. Corn production in Simalungun Regency has decreased due to various factors including downy mildew. Downy mildew disease is caused by Peronosclerospora spp. its development is increasingly rapid supported by a high humidity environment, while the purpose of the study was to examine the effect of rainfall on downy mildew disease intensity, productivity, production, and symptoms of corn plant attack in different locations.Research method: Observations of correlation and regression tests of rainfall on disease intensity, productivity, production, and harvest area of corn were analyzed using Minitab statistical application.The results showed that there is a relationship between rainfall and downy mildew intensity, production, productivity, and harvest area of corn plants. The intensity of downy mildew was highest in Tanah Jawa sub-district with an average disease intensity of 7.81%, this was due to the fact that no eradication was done on plants infected with Peronosclerospora spp. The symptoms of attack found at each observation location had the same symptoms.

Dampak Perbedaan Varietas Terhadap Morfofisiologis Kedelai Tercekam Kekeringan Fahri, Romi; Kiuk, Yosni
JURNAL AGROPLASMA Vol 12, No 2 (2025): Vol 12, No 2 (2025): (JURNAL AGROPLASMA VOLUME 12 NO 2 TAHUN 2025)
Publisher : UNIVERSITAS LABUHANBATU

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/agroplasma.v12i2.8086

Soybean production in Indonesia has not shown a satisfactory trend, compounded by drought problems that adversely affect plant growth and metabolism. One of the various solutions offered is the use of drought-resistant/tolerant soybean varieties. This study aims to examine how drought-resistant/tolerant varieties differ from drought-susceptible varieties in their morphophysiological response to drought. The study was conducted in a plastic house in Aras Kabu Village, Beringin Subdistrict, Deli Serdang Regency, North Sumatra, using a randomised block design with two factors and three replicates. The first factor was soil moisture conditions, consisting of 80% field capacity (FC) and 40% FC. The second factor was the testing of the Grobogan and Dering varieties. The observation parameters consisted of the number of leaves and leaf K uptake. The results showed that there was a significant interaction between the use of varieties and drought conditions, where the Dering variety significantly reduced the number of leaves, while the Grobogan variety, which is susceptible to drought, increased leaf K uptake to survive. Keywords: soybean, drought, stress, varieties

Senam Sehat Upaya Merdeka Dari Penyakit Bersama Masyarakat Kuta Bayu Kab. Deli Serdang Ramadhani, Mastari; Mlinda, Leni; Herdyana, Thessa; Hariati, Emy; Putri, Nizmi; Safitri, Layil; Ramadianti, Astria Ayu; Harahap, Syarifah Ainun; Hidayat, Wahyu; Ritonga, Zon Saroha; Lubis, Rizka Hidayah Husein; Fahri, Romi; Yanti, Sisilia Florina
Jurnal Imiah Pengabdian Pada Masyarakat (JIPM) Vol 1 No 2 (2023): Oktober - Desember
Publisher : CV. ITTC INDONESIA

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Community service activities for lecturers are an effort to carry out one of the tridharma tasks of higher education. Community service carried out in the form of gymnastics activities with the theme Efforts to Be Free from Disease Together with the Kuta Bayu Community in Gunung Meria District, Deli Serdang Regency. This activity aims to carry out the tridharma activities of higher education lecturers in order to contribute knowledge and outreach to society. This service carried out by several lecturers at Nahdlatul Ulama University, North Sumatra (UNUSU) invites the people of Kuta Bayu to start doing regular exercise activities in order to have a healthy physique and avoid all forms of disease. The expected output target of this activity is: to provide an understanding that Doing gymnastics provides many benefits for the body's health, one of which is improving the body's metabolic system and increasing and strengthening the immune system in the body to avoid various diseases.

Planting Productive Seeds Based on Watersheds in Order to Welcome World Environment Day in Kelambir V Kampung Village, Hamparan Perak Region, Deli Serdang District Khairani, Siti; Harahap, Siti Nurlani; Simbolon, Heri Yusuf; Sari, Dini Novita; Sembiring, Juhardi; Fahri, Romi; Utami, Khairuna; Depari, Nelfita Rizka S; Sembiring, Riani Sari
ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 1 (2023): ABDIMAS TALENTA: Jurnal Pengabdian Kepada Masyarakat
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/abdimastalenta.v8i1.12789

Community service for planting productive tree seedlings based on watersheds (DAS) in order to welcome world environment day, aims to socialize the importance of a good environment for life; cooperate with the village government and the Sejahtera Tani farmer group; introducing the types of productive tree seedlings; planting productive tree seedlings with the village government and the Sejahtera Tani farmer group. This community service activity was carried out in Kelambir V Village, Hamparan Perak District, Deli Serdang Regency, North Sumatra Province. This activity is a form of implementation of one of the tridharma of Higher Education, especially community service by the UNUSU academic community, as well as in the framework of UNUSU's participation in the effort to plant watershed-based productive seeds in order to welcome World Environment Day. The method of implementing community service is carried out in 3 stages, namely the preparation stage, the implementation stage and the reporting stage. During the preparatory phase, socialization was carried out, determining socialization areas, identifying needs, coordinating with relevant village officials, preparing proposals and completing supporting documents. In the implementation phase, declaration is carried out, planting productive DAS-based seeds, socializing planting productive DAS-based seeds, monitoring, at the reporting stage, namely compiling a final report on community service activities. The result of this community service activity is planting productive trees around the watershed and in the gardens of farmer groups, which total 100 productive tree seeds including matoa, simpur, jamblang, duku, rambutan, longan, tamarind seeds.

Respon Pertumbuhan Pada Kacang Panjang (Vigna sinensis L.) Terhadap Pemberian Pupuk Organik Cair (POC) Nasa dan Pupuk NPK Kasfar, Fidel; Khairani, Siti; Fahri, Romi
Agroprimatech Vol. 8 No. 1 (2024): Agroprimatech
Publisher : Prodi Agroteknologi Fakultas Agro Teknologi Universitas Prima Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34012/agroprimatech.v8i1.4964

Long bean plants are a horticultural commodity that has the potential to be developed because they have quite high nutritional and economic value. In order for long beans to grow optimally, organic and inorganic fertilizers can be applied. This research aims to determine the effect of providing organic and inorganic fertilizers and the correct dosage on the growth of long beans. This research used a factorial Randomized Block Design (RBD) with 2 factors and 3 replications. The first factor is the application of Nasa liquid organic fertilizer (LOF) at 4 levels, namely: C0 (0 ml/liter of water/control), C1 (2 ml/liter of water), C2 (4 ml/liter of water) and C3 (6 ml /liter of water). The second factor is the application of NPK fertilizer at 4 levels, namely: N0 (control), N1 (dose 200 kg/ha or 20 g/plot), N2 (dose 300 kg/ha or 30 g/plot), N3 (dose 400 kg /ha or 40 g/plot). The research results showed that Nasa LOF application and NPK fertilizer had a significant effect on plant height at 15 and 30 days after planting (DAP), number of branches at 15 and 30 DAP and flowering age.

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