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Aplikasi Cendawan Endofit terhadap Perkembangan Populasi Nematoda Radopholus similis pada Pisang Barangan Lisnawita Lisnawita; Ahmad Rafiqi Tantawi; Mukhtar Iskandar Pinem
Jurnal Fitopatologi Indonesia Vol 9 No 5 (2013)
Publisher : The Indonesian Phytopathological Society (Perhimpunan Fitopatologi Indonesia)

Radopholus similis is a major constraint to banana production in the world including Indonesia and growers have relied on nematicides to manage yield losses. The use of endophytic fungi is one method that may reduce the need for nematicides, however little is known on the effective application method of endophytic fungi to control R. similis. The aim of this research was to find out an effective application method of endophytic fungi to reduce R.similispopulation on banana. Fifteen isolates of endophytic fungi originated from banana corm and root collected from banana plantation in North Sumatera were applied to Barangan cultivar by sowing and deeping methods. The isolates was contained of 11 isolates of Fusarium sp. (2BSTMHMM, 3ASTMHP, 5ASP, 1ASU, 4BSP, 4BJP, 5BKJP, 4BSU, 1BJP, 2 BSP, and 4BKJP) and 4 isolates ofTrichoderma sp. (2BSTMHP, 4BSTMHP, 2BSPH, and 2BSTMHH). All of these endophytic fungi were able to suppress the population of R. similis and they had potential to promote plant growth.

Pengaruh Suara Adzan Terhadap Pertumbuhan, Produksi, Dan Kejadian Penyakit Pada Tiga Jenis Tanaman Brassicaceae Agung Jabar Nur; Ahmad Rafiqi Tantawi; Syahbudin Hasibuan
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 3, No 2 (2021): JIPERTA SEPTEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v3i2.784

Plants can listen to sounds and respond to these sounds by changing metabolic activity. A good sound will have a positive effect on plant metabolism and vice versa. The adhan to prayer is a call to pray and contains good sentences. This study aims to determine the effect of the sound of the adhan on the growth, production, and disease incidence of the Brassicaceae family. This was conducted by performing split plot design which consisted of 2 factors namely plants spesies and the sound of the adhan. The plant species consisted of 3 treatment levels, namely: A1= Mustard greens, A2= Kailan, A3= Pakcoy. Meanwhile, frequency of the adhan consists of 7 levels, namely: B0= without adhan, B1= 2 times a day, B2= 3 times a day, B3= 4 times a day, B4= 5 times a day, and B5= 6 times a day. The results showed that there was a tendency for differences in plant height, leaf area, plant total fresh weight and net weight given the sound of the adhan compared to without sound, but statistically it was not significantly different. The more often the plant is played the sound of the adhan can increase the production of the brassicaceae family.

Analisis Perbedaan Pendapatan Antara Petani Padi Sawah Sistem Pompanisasi dengan Petani Padi Sawah Sistem Tadah Hujan Juli Astuti Daulay; Ahmad Rafiqi Tantawi; Gustami Harahap
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 3, No 2 (2021): JIPERTA SEPTEMBER
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v3i2.755

The purpose of this study was to analyze income differences between farmers pumping system with rainfed rice farm then analysis factor affecting the income of rice farmers in the pumping system with the system of rainfed rice farmers. The method that was used for farmers is purposive sampling. Data analysis method is used average on different test methods (compare means) by using independent sample t-test with two different irrigation systems, analyzed income, analyze profit and linear regression. The results showed that there were no significant income differences between income differences between farming pumping system with rainfed rice farm. In this study the factors that influencethe income of rice farmers in the pumping system in Pematang Johor Village Labuhan Deli District Deli Serdang District significantly affect the income of rice farmers are labor costs, is the costs of pesticides and the costs of fertilizer. And to factors that influence the income of rice farmers in the system of rainfed rice farmers in Pematang Johor Village Labuhan Deli District Deli Serdang District significantly affect the income of rice farmers are costs of fertilizer. While the non significant labor costs, and the costs of pesticides.

Penggunaan Trichoderma Sp. Untuk Mengendalikan Busuk Umbi Pada Bawang Merah (Allium Ascolanicum L.) Dona Tiara; Ahmad Rafiqi Tantawi; Siti Mardiana
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 3, No 1 (2021): JIPERTA MARET
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v3i1.431

The research objective was to determine the use of Trichoderma sp. to control shallots tuber (Allium ascalonicum L.). The research was conducted at Growth Center, Jl. Peradilan Tata Usaha Negara No. 1 Kenangan Baru, Percut Sei Tuan District, Deli Serdang Regency, 25 meters above sea level (asl). The design used was a factorial randomized block design (RBD) consisting of 2 factors, namely the factors of administration of Trichoderma sp. Consists of 5 levels, namely: T0: Control (without Trichoderma sp.), T1: 10 g Trichoderma sp./polybag, T2: 20 g Trichoderma sp./polybag, T3: 30 g Trichoderma sp./polybag, T4: 40 g Trichoderma sp./polybag. and time of giving Trichoderma sp. Consists 2 levels, namely: W1: Trichoderma sp. given 1 week before planting, and W2: 1 week after planting with 10 treatments combination. Observations included plant height (cm), number of leaves per clump (strands), number of tillers per clump (tuber), tuber wet weight per sample (g), tuber dry weight per sample (g), and the percentage of tuber rot attack. The results showed that: 1). The use of Trichoderma sp. with various doses (T0, T1, T2, T3, and T4) significant effect on plant height but no effect on observed other. While application time of Trichoderma sp. 1 week after planting (W2) showed a significant effect on plant height, number of leaves, number of tillers. also significantly affected wet weight, dry weight, and the percentage of tuber rot attack. 2). The combination of the two treatment factors had no significant effect on all observed parameters.

Analisis Saluran Pemasaran Melon Kuning di Kecamatan Pantai Labu Kabupaten Deli Serdang Gaby Oktavia Sembiring; Ahmad Rafiqi Tantawi; Rahma Sari Siregar
Jurnal Agriuma Vol 3, No 1 (2021): Jurnal Agriuma April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.5114

This research was conducted with the aim to know the yellow melon’s marketing channel and the efficiency of the yellow melon marketing channel in Pantai Labu District. This research is a descriptive qualitative and quantitative research. Determination of research units for yellow melon farmers using the census method, while the sample for traders using the snow ball sampling method, and consumer samples using the incidental sampling method. The results showed that there was only one channel formed in the marketing of yellow melon in Pantai Labu District, that us from farmers to collectors, then to wholesalers, retailers, and finally to consumers. In this marketing, the market divides the qualities of melons into three grades of gimbo, bs, and super. The most efficient yellow melon market is super grade yellow melon with the lowest marketing margin value of 10%, farmer's share value of 70%, and the profit to marketing cost ratio value of 17> 0 or Rp 17, - so the yellow melon marketing channel is efficient.

ANALISIS SALURAN PEMASARAN OKRA (Abelmoschus esculentus L.) DI KECAMATAN MEDAN KOTA Murni Nilam Cahyanum; Ahmad Rafiqi Tantawi; Rahma Sari Siregar
Jurnal Agriuma Vol 1, No 1 (2019): Jurnal Agriuma April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v1i1.2318

Tujuan penelitian ini adalah untuk mengetahui saluran pemasaran okra serta bagaimana efisiensi saluran pemasaran okra di Kecamatan Medan Kota. Metode penelitian yang digunakan adalah secara Purposive (Sengaja). Sampel penelitian ini sebanyak 24. Berdasarkan prasurvey yang dilakukan terdapat 2 pasar modern, yaitu Pasar Berastagi dan Transmart Carefour yang menjual okra, maka diambil masing-masing pengumpul dari 2 pasar modern tersebut, dan 2 konsumen dari pasar tersebut. Metode yang digunakan adalah Snowball Sampling serta metode perhitungan Microsoft Excel. Data yang digunakan adalah data sekunder dan data primer. Penelitian dilakukan pada bulan April sampai dengan Mei 2018. Hasil penelitian menunjukkan bahwa saluran pemasaran okra di Kecamatan Medan Kota mulai dari petani→pedagang pengumpul→pedagang pengecer→konsumen okra, Saluran pemasaran okra yang berada di Kecamatan Medan Kota, Kota Medan,ditingkat lembaga pemasaran pedagang pengumpul dan pedagang pengecer efisien. Pada pasar tradisional yang lebih efisien ditingkat pedagang pengecer sebesar 3,07 %. Sedangkan untuk pasar modern saluran pemasaran yang lebih efisien terdapat pada pedagang pengecer dengan tingkat efisien sebesar 0,27%.

Efektivitas Program Klaster Bank Indonesia Terhadap Peningkatan Pendapatan Petani Cabai Kelompok Juli Tani, Desa Sidodadi, Kecamatan Beringin, Kabupaten Deli Serdang Rinaldi Simamora; Ahmad Rafiqi Tantawi; Mitra Musika Lubis
Jurnal Agriuma Vol 3, No 1 (2021): Jurnal Agriuma April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.5115

Juli Tani Group is a farmer group that received the cluster program from Bank Indonesia of Sumatera Utara for the red chili commodity. This study aims to determine the effectiveness of Bank Indonesia Cluster Program on the income level of chili farmers in the Juli Tani Group in Sidodadi Village, Beringin District, Deli Serdang Regency. The data used are primary data obtained directly from the sample of red chili farmers in Juli Tani Group using a questionnaire. Determination of the sample in this study using the Slovin method with a total sample of 52 respondents. Analysis of the data used in this research were (1) Analysis of the Effectiveness of the Cluster Program (2) Analysis of farm business income, to determine whether farming is profitable or not economically, the researcher uses Revenue Cost Ratio (R / C Ratio) then (3) uses non-statistical parametric with the Spearman Rank correlation test. Based on the research results, it was known that the Bank Indonesia cluster program is very effective in increasing the income of chili farmers in the Juli Tani Group in Sidodadi Village, Beringin District, Deli Serdang Regency with an average farmer income of Rp 117,404,895 per growing season.

Analisis Saluran Pemasaran Melon Kuning di Kecamatan Pantai Labu Kabupaten Deli Serdang Gaby Oktavia Sembiring; Ahmad Rafiqi Tantawi; Rahma Sari Siregar
Jurnal Agriuma Vol. 3 No. 1 (2021): Jurnal Agriuma April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.5114

This research was conducted with the aim to know the yellow melonâ€™s marketing channel and the efficiency of the yellow melon marketing channel in Pantai Labu District. This research is a descriptive qualitative and quantitative research. Determination of research units for yellow melon farmers using the census method, while the sample for traders using the snow ball sampling method, and consumer samples using the incidental sampling method. The results showed that there was only one channel formed in the marketing of yellow melon in Pantai Labu District, that us from farmers to collectors, then to wholesalers, retailers, and finally to consumers. In this marketing, the market divides the qualities of melons into three grades of gimbo, bs, and super. The most efficient yellow melon market is super grade yellow melon with the lowest marketing margin value of 10%, farmer's share value of 70%, and the profit to marketing cost ratio value of 17> 0 or Rp 17, - so the yellow melon marketing channel is efficient.

Efektivitas Program Klaster Bank Indonesia Terhadap Peningkatan Pendapatan Petani Cabai Kelompok Juli Tani, Desa Sidodadi, Kecamatan Beringin, Kabupaten Deli Serdang Rinaldi Simamora; Ahmad Rafiqi Tantawi; Mitra Musika Lubis
Jurnal Agriuma Vol. 3 No. 1 (2021): Jurnal Agriuma April
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/agr.v3i1.5115

Juli Tani Group is a farmer group that received the cluster program from Bank Indonesia of Sumatera Utara for the red chili commodity. This study aims to determine the effectiveness of Bank Indonesia Cluster Program on the income level of chili farmers in the Juli Tani Group in Sidodadi Village, Beringin District, Deli Serdang Regency. The data used are primary data obtained directly from the sample of red chili farmers in Juli Tani Group using a questionnaire. Determination of the sample in this study using the Slovin method with a total sample of 52 respondents. Analysis of the data used in this research were (1) Analysis of the Effectiveness of the Cluster Program (2) Analysis of farm business income, to determine whether farming is profitable or not economically, the researcher uses Revenue Cost Ratio (R / C Ratio) then (3) uses non-statistical parametric with the Spearman Rank correlation test. Based on the research results, it was known that the Bank Indonesia cluster program is very effective in increasing the income of chili farmers in the Juli Tani Group in Sidodadi Village, Beringin District, Deli Serdang Regency with an average farmer income of Rp 117,404,895 per growing season.

Pengaruh Suara Adzan Terhadap Pertumbuhan, Produksi, Dan Kejadian Penyakit Pada Tiga Jenis Tanaman Brassicaceae Agung Jabar Nur; Ahmad Rafiqi Tantawi; Syahbudin Hasibuan
Jurnal Ilmiah Pertanian ( JIPERTA) Vol 3, No 2 (2021): Jurnal Ilmiah Pertanian (JIPERTA), September
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/jiperta.v3i2.784

Plants can listen to sounds and respond to these sounds by changing metabolic activity. A good sound will have a positive effect on plant metabolism and vice versa. The adhan to prayer is a call to pray and contains good sentences. This study aims to determine the effect of the sound of the adhan on the growth, production, and disease incidence of the Brassicaceae family. This was conducted by performing split plot design which consisted of 2 factors namely plants spesies and the sound of the adhan. The plant species consisted of 3 treatment levels, namely: A1= Mustard greens, A2= Kailan, A3= Pakcoy. Meanwhile, frequency of the adhan consists of 7 levels, namely: B0= without adhan, B1= 2 times a day, B2= 3 times a day, B3= 4 times a day, B4= 5 times a day, and B5= 6 times a day. The results showed that there was a tendency for differences in plant height, leaf area, plant total fresh weight and net weight given the sound of the adhan compared to without sound, but statistically it was not significantly different. The more often the plant is played the sound of the adhan can increase the production of the brassicaceae family.

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