ANALISIS VEGETASI DAN PENENTUAN DOMINANSI GULMA PADA PERTANAMAN JAGUNG DI BEBERAPA KETINGGIAN TEMPAT

This research was conducted to study weed species and weed dominance on maize crop at several altitutes in Kembaran districts (0-250 m alt) and Sumbang Districs (250-500 m alt), Banyumas regency. The research was arranged in a survey and weed vegetation analysis on maize crop at two different locations determined. There are 6 locations of maize crops every altitutes level (each 20mx20m). Every fields determined 10 samples plot (each 1mx1m). The results showed that weed dominance on maize crop (0-250 m alt) are Cynodon dactylon (SDR : 12,39), Eclipta prostrata (SDR : 11,09), Digitaria sanguinalis (SDR : 9,76), Leptochloa chinensis (SDR : 9,53) dan Cyperus rotundus (SDR : 8,82). Weed dominance on maize crop (250-500 m alt) are Eclipta prostrata (SDR : 13,78), Cynodon dactylon (SDR : 12,81), Leptochloa chinensis (SDR : 12,29), Cyperus rotundus (SDR : 11,47) dan Digitaria sanguinalis (SDR : 10,46)

KOMPETISI GULMA DENGAN TANAMAN BUDIDAYA DALAM SISTEM PERTANAMAN MULTIPLE CROPPING

Multiple cropping is a way of expanding various plants in an area.. This multiple cropping system will give a various agriculture products or various yields, so it can reduce the disadvantageous risk because of the harvest failures in one of the commodity. Besides, the multiple cropping system is based on natural ecosystem where the biodiversity level is higher so it can guarantee the natural equilibrium. One of the obstacles for the farmers in this multiple cropping system is the weed as a growth factor competitor in particular nutrition. It happens especially when the canopy in multiple cropping system does not cover perfectly, so that the weeds problem can be more complex. To reduce the disadvantages are to give the nutrition in an exact dosage, to choose the various plants which can make canopy fast, to arrange the planting distance exactly and multiple cropping system with legume. Keywords: weed competition, plant, multiple cropping

BEBERAPA ASPEK PERBAIKAN PENYEMPROTAN PESTISIDA UNTUK MENGENDALIKAN ORGANISME PENGGANGGU TANAMAN

Penggunaan pestisida dengan volume tinggi dan interval aplikasi penyemprotan yang pendek berakibat meningkatkan biaya produksi usahatani, meningkatkan pencemaran terhadap lingkungan, mempercepat terjadinya resistensi organisme pengganggu tanaman (opt) terhadap pestisida, kematian pada musuh-musuh alami dan residu pestisida pada tanaman dan lingkungan. Program pengendalian opt secara terpadu (PHT) dan falsafah penggunaan pestisida sebagai alternatif terakhir dan memilih pestisida yang lebih selektif, efektif tetapi kurang persisten, efisien dan aman bagi lingkungan. Selektivitas pestisida dapat diciptakan antara lain dengan perbaikan teknik penyemprotan, yaitu menurunkan volume larutan pestisida yang digunakan. Flat spray nozzle atau spuyer kipas dapat digunakan untuk menekan volume larutan pestisida yang digunakan minimal 30%, sehingga biaya produksi usahatani dapat ditekan, pendapatan petani dapat ditingkatkan dan kepedulian terhadap lingkungan hidup dapat dipelihara lebih baik

DEVELOPMENT OF FUSARIUM DISEASE CONTROL TECHNOLOGY WITH BIOLOGICAL AGENT IN MAS CULTIVAR BANANA IN LAND INFECTED

Based on the data of General Director of Production and Horticulture, the damage of plantation areas in banana plantation centers in Indonesia always increases in years, this is due to Fusarium attack caused by fungus Fusarium oxisphorum and causing damage of 30- 70 % banana plantation areas.The aim of this empirically for due to biological control technology Fusarium wilt effective and environmentally friendly to the infected area in District Baturaden, Banyumas through soil solarization treatments and utilization of biological agents..The Research was conducted at the wilt disease endemic Fusarium land located in the village Pamijen, District Baturraden, Banyumas. The research design was a Split Plot Design consisting of 2 treatments, the main plot treatments is soil solarization, whereas treatment subplot is the type and dose of biological agents antagonist. The results showed that the treatment given soil solarization proved to increase the temperature of the surface of the soil up to 8.8 ° C compared with without solarization and reduces demand Fussarium population at ground level up to 53.61%, whereas without solarization Fussarium population decline by 22, 33%. Provision of biological agents Trichoderma, Gliocladium and P. Fluoroscens during the study proved to provide inhibition of the development of Fussarium on seedling disease, indicated by the appearance of symptoms of the disease until the end of the study. This is possible due to the formation of phenolic compounds such as tannins, saponins and glicosida and colonization between biological agents with the root system of plants in which the contact between pathogen inhibition with banana plant seedlings root system so that it protects the roots of the disease-causing pathogen infection Fussarium wilt. Treatment of biological agents proved capable of providing better vegetative growth when compared to the untreated biological agents (control) in which had significant effect on the number of root parameters, but had no significant effect on plant height parameter, number of leave’s, and stem’s diameter. However, the provision of Trichoderma 100 g / planting hole showed the best results in almost all plant vegetative growth parameters at the end of the reseach. Key word: solarize, biological agents, banana plants, infected with Fusarium lan

SPESIES UNGGUL Trichoderma Spp INDIGENUS RIZOZFIR PISANG SEBAGAI PENGENDALI PENYAKIT LAYU Fussarium PADA BIBIT TANAMAN PISANG MAS HASIL KULTUR IN VITRO

This research will be attempts to obtain strain superior Trichoderma that had ability to colonize roots in mas cultivar banana seedlings so that expected can induce resistant plants to the attack fungi Fusarium oxysporum f.sp . the cause of the disease wither in banana crop result in vitro cultures.Research carried out in the Green House Agricultural Faculty, University of Muhammadiyah Purwokerto, time or carried out 8 months. A design that is a Random Block Design treatment which were examined consists of 2 factor of treatment that is for biological agent antagonist Trichoderma sp, consisting of 2 species that is Trichorderma harzianum (T1), and Trichorderma viride (T2 processor). The second treatment is a way to Trichoderma application that consists of two that is, by immersion banana into the suspension Trichoderma (P1) and the sprinkling planting medium to isolate Trichoderma spp (P2). All organised in factorial with three replications, and each unit treatment uses 10 plants that will use 40 polybags. The result showed that application biological agent Trichoderma (T. Harzianum and T viride) during the research proved an emphasis on the attack disease Fussarium in seed, was shown to the low disease severity attacks. For biologist agenues and biodiversity Trichoderma ( T. Harzianum and T. Viride) which is applied by immersion and the sprinkling can have an influence on the increase of leaves in seeds during the research, and have no effect on than plants and diameter in each stem treatment. However, it is a gift Trichoderma growth able to give a better than without treatment Trichoderma (control) and proved to be able to colonize banana seedlings root is endofit in banana mas seedling result in vitro culture. Keywords: Fusarium, Trichoderma, Biological control Technolog

KAJIAN PENGEMBANGAN BAWANG MERAH PADA LAHAN BERKADAR LIAT TINGGI (VERTISOL) DENGAN PENAMBAHAN PUPUK ORGANIK

The aim of this research was to study of onion development at land with high clay content by organic fertilizer aplication. The research was conducted in Dukuhwaluh village, Kembarang Sub-District, Banyumas District on February until September 2006. The research was arranged by Randomized Completely Block Design with four replications. The first factor of treatment was kind of soil (T) consist of Alfisol dan Vertisol soil; the second factor was dosage of organic fertilizer (P) consist of four levels i.e. P0 = without organic fertilizer , P1 = aplicated 5 tons /hectare organic fertilizer, P2 = aplicated 10 tons/hectare organic fertilizer and P3 = aplicated 15 tons/hectare organic fertilizer. Results of the study showed that there are possibility of using of vertisol soil by organic fertilizer aplication for onion development location. The dosage of organic fertilizer that can to support onion development was 15 tons/hectare minimal. Using of Alfisol soil with 15 tons/hectare organic fertilizer aplicated can give higher of yield than the treatment other

PENGARUH JENIS BAHAN PEMBENAH TANAH TERHADAP KUANTITAS DAN KUALITAS TANAMAN KUMIS KUCING (Orthosiphon arisatus (BI.) Miq.) DENGAN BUDIDAYA ORGANIK

Penelitian ini bertujuan untuk mengetahui pengaruh jenis bahan pembenah tanah terhadap kuantitas dan kualitas produksi tanaman kumis kucing dengan budidaya organik. Selain itu juga untuk memperoleh jenis bahan pembenah tanah yang paling optimum bagi kuantitas dan kualitas produksi tanaman kumis kucing dengan budidaya organik. Percobaan pot dilaksanakan di Desa Karangsoka, Kecamatan Kembaran, Kabupaten Banyumas, dengan ketinggian tempat 68 m dpl, selama ± 8 bulan. Penelitian ini menggunakan faktor tunggal, yaitu empat taraf perlakuan pemupukan : M0 = tanpa pemupukan, M1 = pemupukan mikoriza, M2 = pemupukan arang sekam, dan M3 = pemupukan arang sekam dan mikoriza. Rancangan percobaan menggunakan Rancangan Acak Kelompok (RAK) dengan 5 ulangan. Berdasarkan hasil penelitian dapat disimpulkan bahwa jenis bahan pembenah tanah tidak berpengaruh nyata terhadap kuantitas produksi tanaman kumis kucing dengan budidaya organik, yaitu bobot basah daun tanaman. Selain itu jenis bahan pembenah tanah juga tidak berpengaruh nyata pada kadar abu dan kadar air daun tanaman kumis kucing dengan budidaya organik. Penambahan bahan pembenah tanah arang sekam dan mikoriza mampu menghasilkan daun tanaman kumis kucing dengan kandungan Kalium 1,984 % yang termasuk dalam kisaran memenuhi syarat sebagai bahan obat. Oleh karena itu disarankan adanya penelitian lebih lanjut untuk mengetahui lebih dalam tentang budidaya tanaman kumis kucing secara organik, terutama yang mengkaji penggunaan bahan pembenah tanah arang sekam dan mikoriza. Selain itu perlu dilakukan pula tinjauan kualitas kandungan senyawa bioaktif selain Kalium

PENERAPAN HERBISIDA ORGANIK EKSTRAK ALANG-ALANG UNTUK MENGENDALIKAN GULMA PADA MENTIMUN

This research was conducted to study the application of thatch grass extract to weed control, to study the growth and yield of cucumber. The experiment was carried out from January 2013 to April 2013 and was conducted in Dukuhwaluh village, Kembaran District in Banyumas Regency. The research was arranged in a Complete Randomized Design with 1 factor and 5 replications. The factor was application concentration of thatch grass extract consisted of: without application, 100 g/l, 200 g/l, 300 g/l and clean weeding. The results showed that the application concentration of thatch grass extract (200 g/l) can reduce weed population in cucumber crops. Concentration’s application of thatch grass extract (200 g/l) effective to increase fruit number/plant and fruit weight/plant of cucumber. Key words: thatch grass extract, weed populatio and cucumber

Game Design For an Environmental-themed 2D Adventure Mobile Game

Game is a game based on technology media, which is currently one of the entertainments today. The development of games has become a technology that can be felt, through computers to cellphones. One of the game media, namely mobile games, is an attraction for gamers (people who play games) now. Game makers are competing to make games interesting and useful for game lovers. The genres presented are also diverse, such as RPG, Open World, Horror, Puzzle, Sport, and others. At this time the design of the mobile game focuses on the slide type game, where the camera in the game moves right and left, and the illustrations presented are 2D. This game takes the topic of the environment, which through the game tries to invite players to preserve, learn, and understand about the environment, presented with the spices of RPG (Role Playing Game) games as well as a strong story presentatio

KETAHANAN VARIETAS KEDELAI TERHADAP HAMA BELALANG PADA PERLAKUAN INSEKTISIDA HAYATI Beauveria bassiana

Tujuan penelitian untuk mengetahui intensitas serangan belalang, pertumbuhan dan hasil beberapa varietas kedelai pada perlakuan agens hayati Beauveria bassiana.  Penelitian dilakukan pada media tanah dalam polybag bertempat di Green House FP UMP di Desa Karangsari, Kecamatan Kembaran, Kabupaten Banyumas dengan ketinggian tempat 90 m dpl.  Menggunakan Rancangan Acak Lengkap 2 faktor dengan 4 ulangan.  Faktor 1. Varietas kedelai terdiri atas : V1 :Argomulyo, V2 : Baluran, V3 :Ijen, V4 : Kaba. Faktor 2. Agens Hayati B. bassiana terdiri atas : K0 : tanpa diberi B. bassiana, K1 : diberi B. bassiana 6g/l aquades. Hasil penelitian menunjukkan Perlakuan B. bassiana berpengaruh nyata terhadap intensitas serangan belalang. Tanaman kedelai yang diaplikasi B. bassiana (K1) menunjukkan intensitas serangan belalang : 8,66% sedangkan yang tidak diaplikasikan B. bassiana (K0) menunjukkan intensitas serangan belalang : 17,53%.  Perlakuan varietas kedelai berpengaruh nyata terhadap tinggi tanaman 70 hst, jumlah polong total/tanaman, jumlah polong isi/tanaman, jumlah biji/tanaman dan berat biji/tanaman. Varietas Kaba (V2) menunjukkan berat biji/tanaman yang paling berat : 5,89 g/tanaman. Interaksi antara perlakuan varietas kedelai dan B. bassiana tidak berpangaruh nyata terhadap semua variabel yang diamati