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Irwan Muthahanas
Fakultas Pertanian, Universitas Mataram
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Neuroscience Physics Public Health Social Sciences Other

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HASIL EMPAT VARIETAS BAWANG MERAH DENGAN APLIKASI PUPUK HAYATI MIKORIZA DI DESA SETELUK KECAMATAN BATULAYAR KABUPATEN LOMBOK BARAT [YIELD OF FOUR UNION VARIETIES WITH APPLICATIONS OF MYCORRHIZA FERTILIZER IN SETELUK VILLAGE BATULAYAR DISTRICT, WEST LOMBOK] Wahyu Astiko; I Made Sudantha; Mery Windarningsih; Irwan Muthahanas
Jurnal Sinergitas PKM & CSR Vol 3, No 1 (2018): October
Publisher : Universitas Pelita Harapan

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Many ways can be done in an effort to increase the production of shallots, such as regulating the right dosage of fertilization, regulating the optimum spacing, proper irrigation, good pest, and disease control and choosing varieties that have high production potential. There are several varieties that are often cultivated by farmers in West Nusa Tenggara, namely Keta Monca varieties from Bima, Brebes varieties originating from Central Java, Super Filip varieties and Vietnamese varieties. Technological innovations by trying out several superior varieties of shallots also need to be socialized to the community by conducting community service activities in an effort to implement a culture system that is environmentally friendly, sustainable and can improve crop yields. This community service activity was carried out in Seteluk Village, Batulayar District, West Lombok Regency, which is a shallot producing area. The method used in carrying out community service is a training method that is continued with practical work in the field by conducting demonstrations and active participatory action research. To see the results of community service an evaluation was conducted which included: average plant height, tuber yield per plot, attendance and participation of participants in adopting the applied technology, and discussion during the extension. The results of the demonstration plot of mycorrhizal biofertilizer application on four shallot varieties showed that the Keta Monca variety originating from Bima gave the best growth and yield and was suitable for planting in the lowlands. The presence and participation of farmers during community service was very enthusiastic about the delivery of extension materials. The participants' understanding of the material provided was very good, as seen from the number of participants who asked questions and the relevance of the questions posed by the participants in accordance with the extension material delivered.
APLIKASI PUPUK Si Plus MENURUNKAN INTENSITAS SERANGAN PENYAKIT VASCULAR STREAK DIEBACK (VSD) PADA TANAMAN KAKAO ( Theobroma cacao L. ) Ahmad Subarja; Irwan Muthahanas dan Joko Priyono
CROP AGRO, Scientific Journal of Agronomy Vol 9 No 2 (2016): jurnal Crop Agro Januari 2016
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi pupuk SiPlus terhadap intensitas serangan penyakit VSD pada tanaman kakao dan frekuensi aplikasi SiPlus yang paling efektif. Penelitian dilaksanakan di perkebunan kakao milik Pemerintah Provinsi Nusa Tenggara Barat di Desa Lingsar, Lombok Barat. Penelitian menggunakan rancangan acak lengkap diulang 5 kali. Perlakuan aplikasi SiPlus terdiri atas kontrol (tanpa SiPlus), diberi SiPlus 1,2,3 kali/bulan masing-masing dengan cara disemprot dan di infus. Hasil penelitian menunjukkan bahwa aplikasi pupuk SiPlus menurunkan intensitas serangan penyakit VSD pada tanaman kakao. Pada bulan pertama, intensitas serangan penyakit VSD pada kontrol 13,24 %, turun menjadi 2,59 – 8,10 %. Pada bulan ke-4, intensitas VSD pada kontrol tetap pada kisaran 13%, turun menjadi 0,51-5,87 %. Pemberian SiPlus yang paling efektif adalah disemprot sekali/bulan. Dapat disimpulkan bahwa SiPlus efektif digunakan untuk mencegah munculnya serangan VSD pada kakao. ABSTRACK This research was aimed to identify the effect of SiPlus fertilizer application on the disease intensity of vascular streak dieback (VSD) on cocoa and to determine the most effective of the application in reducing the diseases intensity. The research was conducted in NTB provincial government cocoa plantations located in Lingsar village, West Lombok. This research applied a completely randomized design with 5 replications. The treatment consisted of control (no SiPlus), applied SiPlus for 1, 2, and 3 times/months each of which was by spraying the leaf, steam and fruit and by inpush methods. Results showed that the application of SiPlus fertilizer significantly reduced the disease intensity of VSD on cocoa. In the first month, VSD disease intensity in the control was 13,24 %, while of that for the treated with SiPlus was 2,59 – 8,10 %. In the 4th months, that was from 13 % decreased to 0.51 – 5.87 %. The most effective application of SiPlus was by spraying SiPlus once per month, It may be concluded that applying SiPlus was an effective method to avoid VSD on cocoa.
STUDI PENDAHULUAN TENTANG PENYAKIT BUSUK BATANG PADA TANAMAN BUAH NAGA DI KABUPATEN LOMBOK UTARA Mulat snaini1; Irwan Muthahanas1; I Komang Damar Jaya2
CROP AGRO, Scientific Journal of Agronomy Vol 2 No 2 (2009): Jurnal Crop Agro
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Tujuan dari penelitian ini adalah untuk mengetahui penyebab penyakit busuk batang pada tanaman buah naga di Kabupaten Lombok Utara. Metode yang digunakan adalah isolasi secara langsung dari batang yang sakit dan dari sampel tanah. Media yang digunakan untuk menumbuhkan jamur adalah Water Agar (WA) dan Potato Dextrose Agar (PDA) ditambah dengan antibiotik Streptomicyn sulfat. Sedangkan medium yang digunakan untuk menumbuhkan bakteri dan actinomycetes adalah Nutrient Agar (NA). Identifikasi patogen dilakukan dengan cara pengamatan deskriptif terhadap morfologi jamur-jamur yang ditemukan berdasarkan pengamatan di bawah mikroskop. Hasil yang diperoleh menunjukkan bahwa yang berasosiasi dengan penyakit busuk batang adalah jamur Genus Phytophthora dan Fusarium. Sedangkan mikroorganisme yang berasosiasi adalah bakteri, actinomycetes, dan jamur-jamur Genus Pythium, Sclerotium, Rhizoctonia dan Acremonium. ABSTRACT The aim of this study was to determine the causal agents of stem rot disease on dragon fruit planted in North Lombok. Direct isolation from stem rot and soil sample were used in this study. Media for the growth of the fungi were Water Agar (WA) and Potato Dextrose Agar (PDA) suplemented with antibiotic Streptomicyn sulfat. Nutrient Agar was used to grow the bacteria and actinomycetes. Methods used to identify the fungi were description upon microscopic observation of the fungal morphology. The results show that the primary fungi associated with basal stem rot were fungi of the genus of Phytophthora and Fusarium and several microorganisms associated with the disease were bacteria, actinomycetes, and the fungi Genus of Pythium, Sclerotium, Rhizoctonia dan Acremonium.
EFEKTIFITAS EKSTRAK DAUN SIRIH (Piper betle L.) DALAM MENEKAN PENETASAN TELUR DAN INFEKTIFITAS Meloidogyne spp. Ebi Suanto; Sudirman 2; Irwan Muthahanas
CROP AGRO, Scientific Journal of Agronomy Vol 11 No 1 (2018): Jurnal Ilmiah Budidaya Pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui efektifitas ekstrak daun sirih dalam menekan penetasan telur dan infektifitas Meloidogyne spp. Penelitian dilksanakan secara eksperimental dengan Rancangan Acak Lengkap. Empat konsentrasi (0,5%, 1%, 1,5%, dan 2%) ekstrak daun sirih diuji dan perlakuan tanpa ekstrak disiapkan sebagai kontrol. Tiap perlakuan diulang 3 kali. Data hasil penelitian dianalisis dengan analisis keragaman dan dilanjutkan dengan Uji Beda Nyata Terkecil pada taraf 5%. Hasil penelitian menunjukkan bahwa ekstrak daun sirih dengan konsentrasi 0,5% dapat menekan penetasan telur hingga 92% dan penekanan total (100%) pada perlakuan 1%, 1,5% dan 2%. Ekstrak daun sirih pada semua konsentrasi yang diuji menekan infektifitas Meloidogyne spp. secara total (tidak ada nematoda yang penetrasi akar) dan tidak mengganggu pertumbuhan dan perkembangan tanaman. ABSTRACT This study aimed at determining effectiveness of betel leaf extract in suppressing eggs hatching and infectivity of Meloidogyne spp. The research was done experimentally and completely randomized designed. Four concentrations (0.5%, 1%, 1.5%, and 2%) of betel leaf extract were tested and a treatment without extract was provided as a control. Each treatment was repeated three times. Data of experiments were subjected to analysis of variance followed by least significant different test at 5% significant level. Results of experiments showed that betel leaf extract at 0.5% suppressed eggs hatching as much as 92% and total (100%) suppressions were recorded at concentrations of 1%, 1.5% and 2%. Betel leaf extract, at all concentrations tested, totally suppressed infectivity of Meloidogyne spp. (no nematode penetrated roots) and did not interference plant growth and development.
IDENTIFIKASI JAMUR PATOGEN TANAMAN TOMAT (Lycopersicum esculentum Mill.) DI LAHAN KERING AMOR-AMOR LOMBOK UTARA nindi faridatul hasanah*1; Irwan Muthahanas*2; Mulat Isnain*3
CROP AGRO, Scientific Journal of Agronomy Vol 12 No 2 (2019): Jurnal Crop Agro Juli 2019
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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Abstract

ABSTRACT The aim of this research is to determine the pathogenic fungi that infect tomatoes in farmer's land and level of damage in Amor-Amor. This research was conducted from October 2017 to January 2018 which was carried out in Amor-Amor Village, North Lombok Regency and in the Microbiology Laboratory, Faculty of Agriculture, University of Mataram.The method used in this research was descriptive by collecting data in the field directly. The results showed that with highest intensity of disease is caused by the fungus Alternaria sp. that is 48% in tymoti varieties and 62.50% in servo varieties and followed by Phytophthora sp. with disease incidents of 5.33% in tymoti varieties, 14.66% in servo varieties, and Rhizoctonia sp. 28.83% in tymoti varieties, 13.33% in servo varieties respectively.
PENGARUH PEMBERIAN PUPUK SiPlus TERHADAP INTENSITAS SERANGAN HAMA PENGISAP (Helopeltis antonii) DAN PENGGEREK BUAH KAKAO Muhamad Lutfi; Joko Priyono; Irwan Muthahanas
CROP AGRO, Scientific Journal of Agronomy Vol 9 No 2 (2016): jurnal Crop Agro Januari 2016
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh aplikasi pupuk SiPlus terhadap intensitas serangan hama pengisap (Helopeltis antonii) dan penggerek buah kakao. Penelitian dilaksanakan di perkebunan kakao milik Pemerintah Provinsi NTB di Desa Lingsar, Lombok Barat. Penelitian menggunakan rancangan acak lengkap diulang 5 kali. Perlakuan aplikasi SiPlus terdiri atas kontrol (tanpa SiPlus), diberi SiPlus 1,2,3 kali/bulan masing-masing dengan cara disemprot dan diinfus. Hasil penelitian menunjukkan bahwa aplikasi pupuk SiPlus menurunkan intensitas serangan hama pengisap dan penggerek buah kakao, makin lama penggunaan SiPlus makin intensif penurunan serangan hama pengisap dan penggerek terutama pada bulan ke-2 sampai dengan ke-4. Pada bulan ke-2, intensitas serangan hama helopeltis pada kontrol 6,9 %, turun menjadi 2,22–5,1 %. Pada bulan ke-4, pada kontrol tetap pada kisaran 5,92%, turun menjadi 0,64 - 1 %. Pemberian SiPlus yang paling efektif adalah diinfus sekali/bulan. Dapat disimpulkan bahwa SiPlus efektif digunakan untuk menurunkan intensitas serangan Helopeltis dan penggerek buah kakao. ABSTRACT This research was aimed to identify the effect of SiPlus fertilizer application on the intensity attach of cocoa bot borer and sucker (Helopeltis antonii). The research was conducted in NTB provincial government cocoa plantations located in Lingsar village, West Lombok. This research applied a completely randomized design with 5 replications. The treatment consisted of control (no SiPlus), applied SiPlus for 1, 2, and 3 times/months each of which was by spraying the leaf, steam and fruit and by inpush methods. Results showed that the application of SiPlus fertilizer significantly reduced the intensity attach of cocoa bot borer and sucker, the effects was more intens for longer period of SiPlus application especialy in the second month until the fourth month. In the second month the disease intensity in the control was 6,9 %, while of that for the treated with SiPlus was 2,22-5,1 %. In the 4th months, that was from 5,92 % decreased to 064 –1 %. The most effective application of SiPlus was by spraying SiPlus once per month, It may be concluded that applying SiPlus was an effective method to avoid cocoa bot borer and Helopeltis.
UJI KETAHANAN BEBERAPA VARIETAS KACANG TANAH LOKAL BIMA TERHADAP PENYAKIT Sclerotium rolfsii Sacc. Wahyu Astiko1; Irwan Muthahanas 1; Yuni Fitrianti2
CROP AGRO, Scientific Journal of Agronomy Vol 2 No 1 (2009): Jurnal Crop Agro
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui tingkat ketahanan beberapa varietas kacang tanah lokal Bima terhadap penyakit Sclerotium rolfsii. Percobaan dirancang menurut Rancangan Acak Kelompok, yang terdiri dari lima perlakuan dan setiap perlakuan diulang sebanyak empat kali. Perlakuan tersebut adalah Varietas Rasanae, Varietas Belo, Varietas Sape, Varietas Wawo, dan Varietas Wera. Hasil penelitian menunjukkan bahwa kelima varietas kacang tanah lokal Bima tersebut semuanya memiliki tingkat ketahanan yang rendah. Masa inkubasi varietas Wera paling cepat (7,66 h) dengan intensitas paling tinggi (96 %) dan varietas Sape paling lama (8,60 h) dengan intensitas penyakit terendah (74 %). Laju infeksi tertinggi diperoleh dari varietas Sape (1,589 unit/hari) dan terendah varietas Wera (0,165 unit/hari). ABSTRACT The aim of the research was to determine the resistance of some Bima’s local varieties of peanut against Sclerotium rolfsii disease. Experiment was designed according to Completely Block Design consisted of five treatments and each treatment was replicated four times. The treatments were Rasanae varieties, Belo varieties, Sape varieties, Wawo varieties, and Wera varieties. Result of the experiment indicated that five peanut Bima local varieties mentioned all have of resistance level which low. Incubation period of Wera varieties is the fastest (7,66 d) with the highest intensity (96 %) and Sape varieties are the slowest (8,60 d) with the lowest intensity (74 %). The highest rate intensity was found on Sape varieties (1,589 unit/day) and the lowest one is Wera varieties (0,165 unit/day)
SKRINING Streptomyces sp. ISOLAT LOMBOK SEBAGAI PENGENDALI HAYATI BEBERAPA JAMUR PATOGEN TANAMAN Irwan Muthahanas; Erna Listiana
CROP AGRO, Scientific Journal of Agronomy Vol 1 No 2 (2008): Jurnal Crop Agro
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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Penelitian bertujuan untuk mendapatkan Streptomyces sp. isolat Lombok yang memiliki kemampauan antagonis yang dapat digunakan sebagai pengendali hayati beberapa jamur patogen tanaman di pulau Lombok. Penelitian dilaksanakan di lapang dan di Laboratorium Mikrobiologi Fakultas Pertanian Universitas Mataram mulai dari bulan April sampai dengan bulan Nopember 2007. Dari hasil penelitian diperoleh 45 isolat Streptomyces sp. Isolat tersebut 9 terdiri dari isolat dari rizosfer cabe Steling, 10 dari rizosfer tomat Bayan, 13 dari rizosfer bawang Sembalun, dan 13 dari rizosfer cabe Aikmal. Data dianalisis dengan analisis varian, dan uji lanjut menggunakan uji beda nyata jujur pada taraf 5%. Warna koloni isolat yang berhasil di isolasi dikelompokan dalam warna putih, coklat, abu-abu, kuning, hijau, hitam dan ungu. Semua isolat bereaksi gram positif pada pengecatan gram. Hasil penelitian menunjukkan bahwa sebanyak 20 isolat (44,4%) dari isolat Streptomyces sp. yang berhasil diisolasi mampu menghambat pertumbuhan jamur patogen tanaman pada uji antagonis secara berpasangan. Satu isolat (BSi) mampu menghambat tiga jamur patogen tanaman (Fusarium oxysporum, Rhizoctonia solani, Sclerotium rolfsii). Dua isolat (CSb dan CSk) menghambat pertumbuhan dua jamur patogen tanaman (F. oxysporum, R. solani). Tiga isolat (CSa, CSe, CSg) hanya mampu menghambat F. oxysporum, satu isolat (CAl) hanya mampu menghambat S. rolfsii, dan 13 isolat lainnya hanya menghambat R. solani. Persentase hambatan oleh Streptomyces sp. terhadap jamur patogen tanaman bervariasi dari yang paling kecil 20% (Streptomyces sp. isolat CAj terhadap R. solani), sampai yang paling besar 70% (Streptomyces sp. isolat BSi terhadap S. rolfsii). ABSTRACT The objective of the research was to obtain Lombok isolate of Streptomyces sp. those has the antagonist ability can be used as biological control agent of several fungal plan pathogens in Lombok Island. The experiments were undertaken in the field and Laboratorium of Microbiology the Faculty of Agriculture Mataram University started from April up to November 2007.The result of the research showed that 45 isolates of Streptomyces sp. have been obtained. Those isolates includes 9 isolates obtained from the rhizosphere of chili in Steling, 10 from the rhizosphere of tomato in Bayan, 13 from the rhizosphere of chili in Aikmal. The colour of the colony of the isolate that has been successfully isolated were grouped in the colour of white, brown, grey, yellow, green, black, and purple. All isolates are gram-positive bacteria according to gram staining test. As much as 20 isolates (44,4%) of isolates of Streptomyces sp. being isolated were capable of inhibiting the growth of fungal plant pathogens according to antagonism test. One isolate (BSi) was capable of inhibiting three fungal plant pathogens (Fusarium oxysporum, Rhizoctonia solani, and Sclerotium rolfsii). Two islates (CSb and CSk) were capable in inhibiting two fungal plant pathogens (F. oxysporum and R. solani). Three isolates (CSa, CSe, CSg) were only able to inhibit F. oxysporum, one isolate (CAl) was only capable in inhibiting S. rolfsii, and the other 13 isolates were only able to inhibit R. solani. The percentage of inhibition of the fungal plan pathogens by Streptomyces sp. is varied from the smallest inhibition of 20% (Sterptomyces sp. isolate of CAj against R. solani) to the biggest inhibition of 70% (Streptomyces sp. isolate of BSi against S. rolfsii).
PENGENDALIAN Sclerotium rolfsii Sacc. PENYEBAB PENYAKIT REBAH-SEMAI KACANG TANAH DENGAN PEMANFAATAN Streptomyces sp. SEBAGAI AGEN PENGENDALIAN HAYATI Annisa Riska Wahyuni; Sudirman Sudirman; Irwan Muthahanas
CROP AGRO, Scientific Journal of Agronomy Vol 10 No 2 (2017): Jurnal Crop Agro Juli 2017
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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ABSTRAK Penelitian ini bertujuan untuk mengetahui kemampuan Streptomyces sp. dalam menghambat pertumbuhan dan perkembangan jamur Sclerotium rolfsii. Penelitian ini dilaksanakan di Laboratorim Mikrobiologi dan Rumah Kaca Fakultas Pertanian Universitas Mataram dengan metode eksperimental. Pada percobaanin-vitro, 5 isolat Streptomyces sp. (isolat Gi, IMi, BSi, Sh dan BSc) diuji efektifitasnya dalam menghambat pertumbuhan jamur S. rolfsiipada media YMA dalam cawan petri. Zona hambatan pertumbuhan S. rolfsii diukur 3 hari setelah inokulasi. Isolat Gi menunjukkan daya hambat tertinggi (43.33%) dan isolat Gi digunakan pada percobaan in-vivo.Percobaanin-vivo ditata dengan rancangan acak lengkap dengan perlakuan inokulasi Streptomyces sp. di media tanam pada saat tanam, 7 hari setelah tanam, 14 hari setalah tanam, dan perlakuan perendaman benih dengan Streptomyces sp. 10 menit, 20 menit dan 30 menit. Kontrol positif dan kontrol negatif disiapkan. Masing-masing perlakuan diulang sebanyak 5 kali sehingga diperoleh 40 unit percobaan.Pada percobaan in-vivo perlakuan Streptomyces sp. Isolat Gi tidak mampu menekan masa inkubasi tetapi mampu menekan insiden penyakit rebah-semai oleh Sclerotium rolfsii. ABSTRACT The aim of this study was to determine the ability of Streptomyces sp. to inhibit the growth and development of fungus Sclerotium rolfsii. This research was conducted in the Laboratory of Microbiology and Greenhouse Faculty of Agriculture, Mataram University with experimental methods. In in-vitro experiments, five isolates of Streptomyces sp. (Isolates Gi, Imi, BSi, Sh and BSc) were tested their effectiveness in inhibiting the growth of fungusS. rolfsii on YMA medium in Petri dishes. Inhibitionzone of S. rolfsii growth was measured 3 days after inoculation. Isolate Gi showed the highest (43.33%) so that it was used in in-vivo experiment. The experiment was Completely Randomazed Designed with 6 treatments, inoculation of Streptomyces sp. at planting time, 7 days, 14 days after planting, seeds soaking treatment in Streptomyces sp. suspension for 10, 20 and 30 minutes. Positive and negative controls were provided. Each treatment was repeated 5 times resulting in 40 experimental units. Result showed that although isolate Gi of Streptomyces sp. was unable to suppress incubation periode, but it was capable suppressing incident of dumping-off disease caused by S. rolfsii.
UJI EFEKTIFITAS PUPUK BATUAN SILIKAT CAIR BERPESTISIDA NABATI TERHADAP INTENSITAS BEBERAPA PENYAKIT PADA TANAMAN JAGUNG (Zea mays L.) Irna Tristanti; Irwan Muthahanas; Joko Priyono
CROP AGRO, Scientific Journal of Agronomy Vol 11 No 1 (2018): Jurnal Ilmiah Budidaya Pertanian
Publisher : Department of Agronomy Faculty of Agriculture University of Mataram and Indonesian Society of Agronomy Branch NTB

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Abstract

ABSTRAK Penelitian ini bertujuan untuk melihat efektifitas pemberian pupuk batuan silikat berpestisida nabati (Biopestisida fertilizer) terhadap intensitas beberapa penyakit pada tanaman jagung (Zea mays L.). Rancangan percobaan yang digunakan adalah rancangan acak kelompok (RAK) dengan 2 faktor yakni konsentrasi NP dan frekuensi BF (Biopestisida fertilizer) yang ditata secara faktorial dan diulang 3 kali sehingga diperoleh 18 unit percobaan. Hasilnya ditemukan tiga jenis patogen dari golongan cendawan yang menginfeksi tanaman jagung, yakni penyakit bercak/ hawar daun oleh Helminthosporium sp., penyakit busuk batang oleh Pythium sp. dan penyakit busuk tongkol oleh Fusarium sp. Namun, intensitas serangan ketiganya tergolong ringan. Aplikasi biopestisida fertilizer memberi pengaruh nyata terhadap intensitas penyakit busuk tongkol dan busuk batang, sedangkan NP tidak memberi pengaruh nyata, dan interaksi pupuk NP dan BF juga tidak memberi pengaruh nyata terhadap intensitas penyakit. Pada penyemprotan BF 2 kali (BF2) terlihat adanya kenaikan hasil gelondongan dan pipil kering, akan tetapi pada penyemprotan BF 4 kali (BF4) justru terlihat mengalami penurunan. Dengan demikian, aplikasi BF optimal adalah pada 2 sampai 3 kali penyemprotan. Untuk penelitian selanjutnya, produk ini perlu diuji pada varietas jagung yang lain atau pada komoditi yang berbeda terhadap keberadaan jenis penyakit yang lain. ABSTRACT The aim of this study is to explore the effectiveness of application of silicate phytopesticidal fertilizer on the intensity of some diseases in maize (zea mays l). The method used in this research was factorial randomized completely block design with two factors (concentration of np and the frequency of phytopesticidal fertilizer). each treatment has three replications. the result indicated that there are three kinds of fungi pathogens infected maize such as blight (Helminthosporium sp), stem rot (phytium sp) and cob rot (Fusarium sp). however, the intensity of the three pathogens was moderate. the application of silicate phytopesticidal fertilizer had significant effect to the intensity of cob rot and stem rot, whereas, the np concentration and the interaction between np fertilizer and silicate phytopesticidal fertilizer had not significant effects to the intensity of the diseases. on the twice spraying of phytopesticidal fertilizer (bf2) indicated the increment of yield of dry shells. however, on the four times spraying of phytopesticidal fertilizer (bf4) indicated the reduction. thereby, the application of phytopesticidal fertilizer has optimum effect on 2 to 3 times of spraying. for the following study, this product needs to be tested on other varieties of maize or other commodities to the existence of other diseases.
Co-Authors A. Farid .Hemon Ahmad Subarja Aini, Kuratun Aluh Nikmatullah Aluh Nikmatullah Amrul Jihadi Anisa Putri, Baiq Annisa Riska Wahyuni Asmara Yauma Putri Fara Diba Asyari, Adam Azis, Fathul Baiq Mona Kotma Chantika Bambang Budi Santoso Bambang Budi Santoso Bambang Supeno, Bambang Daiyyan Bisri Damayanti , Elsa Dwi Putra Buana Sakti Dwi Ratna Anugrahwati Ebi Suanto Erna Listiana Erna Listiana1 Farizal Ramadhan Fikrina, Garin Hairul Anas Handayani, Ridhatul Herman Suheri Hery Haryanto Hery Haryanto Hery Heryanto Husnah, Nur Jumratul I Ketut Ngawit I Ketut Ngawit, I Ketut I Komang Damar Jaya2 I Made Sudantha Ida Ayu Putu Sri Widnyani Imam Rozy Zarkasih, Muhammad Irfan Saputra Irna Tristanti Jayaputra Joko Priyono Kurniawan Yuniarto M. Heldian Habib M. Taufik Fauzi Mauly Riski Andini Mery Windarningsih Mohamad Taufik Fauzi Mohamad Taufik Fauzi Muchlis Muchlis Muhamad Lutfi Muhammad Adya Purnama Muhammad Fasihul Lisan Muhammad Sarjan Muhammad Sarjan Mulat Isnain*3 Mulat Isnaini Mulat snaini1 Ni Made Dini Widia Handayani Ni Made Laksmi Ernawati Ni Nyoman Putri Utami Nika Pranggana Aranda nindi faridatul hasanah*1 Nisa Nurizal, Imam Nurrachman Petrunella Thei, Ruth Stella Ramadan, Galih Rendi Irawan Resmayanti, Resmayanti Ria Nurmaya Sari1 Rifaldi Syahwal RINI RINI Ririn Nurattul Awalliyah Septiandani, Risna Septiandani Sinta Nuryah Sonia Astuti Astuti Sri Rahayu Sudirman Sudirman Sudirman Sudirman Tarmizi Tarmizi 2 Thei, Ruth Stella Petrunela Wahyu Astiko Wiratul Aini WULANDARI Yuhendra AP Yuni Fitrianti2 Zahratul Aeni