1,720,974 research outputs found
Respon Pertumbuhan dan Produksi Beberapa Varietas Padi Gogo Beras Merah (oryza nivara l.) dengan Jarak Tanam yang Berbeda
Get PDF109 halamanRespon Pertumbuhan dan Produksi Beberapa Varietas Padi Gogo Beras Merah (Oryza nivara. L) dengan Jarak Tanam yang Berbeda. Di bawah bimbingan Ibu Dr. Ir. Sumihar Hutapea, MS selaku ketua pembimbing dan Ibu Ir. Azwana, MP selaku anggota pembimbing. Penelitian dilakukan di Balai Penelitian Sungei Putih. Galang, Jl. Sei Putih Rispa, Kabupaten Deli Serdang Sumatra Utara, sejak September 2020 sampai Februari 2021. Penelitian menggunakan Rancangan Petak Terbagi (RPT) yang terdiri dari 2 faktor perlakuan, yaitu: 1). Berbagai Jenis Varietas (notasi V) yang terdiri dari 4 taraf perlakuan, yakni: V1= Sigambiri Merah; V2= MSP 17; V3= Hamparan Perak; V4= Kambiri Lumat. 2). Berbagai perlakuan jarak tanam yang terdiri dari 4 taraf perlakuan, yakni: J1= 20 x 20 cm; J2= 25 x 25 cm; J3= 20 x 30 cm; J4= 40 x 20 cm dengan ketinggian tempat 80 mdpl. Parameter yang adalah tinggi tanaman, jumlah anakan, intensitas serangan hama belalang, intensitas serangan hama walang sangit, umur berbunga, jumlah malai per sampel, jumlah malai per plot, bobot gabah kering panen per sampel, bobot gabah kering panen per plot, berat 1000 butir gabah. Hasil yang diperoleh, yakni: 1). Pemberian berbagai jenis varietas berpengaruh nyata terhadap tinggi tanaman, jumlah anakan, intensitas serangan hama walang sangit, umur berbunga, jumlah malai per sampel, jumlah malai per plot, bobot gabah kering panen per sampel dan bobot gabah kering panen per plot, tetapi tidak berpengaruh nyata pada intensitas serangan hama belalang dan bobot 1000 butir gabah. Perlakuan V2 menghasilkan jumlah produksi terbanyak sebesar 0,519 kg per plot. 2). Pemberian berbagai jarak tanam berpengaruh nyata pada tinggi tanaman, jumlah anaka, jumlah malai per sampel, jumlah malai per plot, bobot gabah kering panen per sampel dan bobot gabah kering panen per plot, tetapi tidak berpengaruh nyata pada intensitas serangan hama belalang, intensitas serangan hama walang sangit, umur berbunga dan bobot 1000 butir gabah. Perlakuan jarak tanam 20 x 20 cm memberikan hasil yang tertinggi produksi tanaman padi gogo beras merah
Preferensi Spodoptera Frugiperda J.E. Smith pada Berbagai Tanaman
Get PDFSpodoptera frugiperda (Lepidoptera: Noctuidae) is a pest that boomed in early 2019. The research was conducted descriptively in areas that had never been attacked by S. frugiperda by planting various types of crops such as sweet corn, white corn, hybrid corn, green beans, tomatoes, chilies and sorghum. The results showed that S. frugiperda was very fond of sweet corn, followed by white corn, hybrid corn and sorghum. Green bean, chili and tomato plants were not attacked by S. frugiperda. Pest S. frugiperda began to attack sweet corn plants at 3 weeks after planting with the initial attack in the form of scratches on the leaves and continued to the base / growing point (leaves still curled). Even this pest also attacks the male flowers that have not opened and attacks the sweet corn cobs. S. frugiperda began to attack sweet corn at the age of 20.33 days after planting, on white corn 25.67 days after planting, hybrid corn 25.53 days after planting and sorghum at 28.67 days after planting. In sweet corn, the attack reached the corn cobs, while in white corn and hybrid corn, the attack only showed damage to the leaves, not to the cornflower as well as to sorghum. The percentage of attack on white corn (22.15%) and hybrid corn (18.26%) and on sorghum was only 10.34% less than attack on sweet corn (40.02%)
The Influence of the Presence of Percut Water Park Agrotourism on the Socio-Economic Community (Case Study: Tanjung Selamat Village, Percut Sei Tuan District, Deli Serdang Regency)
No full text87 halamanTujuan dari penelitian ini untuk mengetahui pengaruh keberadaan agrowisata Taman Air Percut terhadap sosial ekonomi masyarakat di Desa Tanjung Selamat, Kecamatan Percut Sei Tuan, Kab. Deli Serdang, Sumatera Utara. Pengambilan sampel dilakukan dengan rumus Slovin. Sampel dalam penelitian ini adalah masyarakat Desa Tanjung Selamat dengan jumlah sampel 75 responden. Data yang dikumpulkan adalah data primer dan data sekunder. Metode analisis yang digunakan adalah Regresi Linier Sederhana. Hasil penelitian menunjukkan bahwa Keberadaan agrowisata Taman Air Percut memberikan pengaruh positif terhadap sosial ekonomi masyarakat Desa Tanjung Selamat. Pengembangan kawasan agrowisata Taman Air Percut meningkatkan kondisi sosial ekonomi masyarakat sekitar. Hal tersebut dilihat dari munculnya peluang usaha, penyerapan tenaga kerja, dan peningkatan pendapatan masyrakat sekitar. Agrowisata Taman Air Percut tidak berpengaruh terhadap sosial budaya masyarakat setempat. Masyarakat masih melakukan aktivitas kemasyarakatan maupun keagamaan sebelum maupun sesudah adanya agrowisata Taman Air Percut. The purpose of this study was to determine the effect of the existence of Percut Water Park agro-tourism on the socioeconomic community in Tanjung Selamat Village, Kec. Percut Sei Tuan, Kab. Deli Serdang, North Sumatra. Sampling was carried out using the Slovin formula. The sample in this study was the people of Tanjung Selamat Village with a sample of 75 respondents. The data collected are primary data and secondary data. The analytical method used is simple linear regression. The results showed that the existence of Percut Water Park agro-tourism had an influence positive on the socio-economic community of Tanjung Selamat Village. The development of the Percut Water Park agrotourism area improves the socioeconomic conditions of the surrounding community. This can be seen from the emergence of business opportunities, employment, and increased income of the surrounding community. Percut Water Park agrotourism has no effect on the sociocultural of the local community. The community still carries out social and religious activities before and after the Percut Water Park agrotourism
The Effectiveness of Tithonia Diversifolia Bioinsecticide Nanoparticles Against Mortality of Spodoptera Frugiperda in Corn Plants (Zea Mays L.)
No full text63 halamanSpodoptera frugiperda merupakan hama utama tanaman jagung dengan persentase serangan 30-60%. Larva S. frugiperda bersembunyi dibagian paling susah untuk dijangkau oleh pestisida, lebih sering ditemukan di daun tanaman jagung yang masih menggulung. Tujuan penelitian ini untuk mengetahui efektivitas ekstrak Tithonia diversifolia sebagai insektisida nabati guna mengendalikan larva S. frugiperda di laboratorium. Penelitian menggunakan Rancangan Acak Lengkap Faktorial terdiri 2 faktor perlakuan yaitu dosis nanopartikel bioinsektisida T. diversifolia dan stadia larva. Perlakuan nanopartikel bioinsektisida terdiri dari 6 taraf, yaitu : P0- = tanpa perlakuan (kontrol), P0+ = pestisida Curacon 500 EC (bahan aktif : Profenos 500 g/l) dosis 1 ml/l, P1 = nanopartikel bioinsektisida T. diversifolia konsentrasi 4%, P2 = nanopartikel bioinsektisida T. diversifolia konsentrasi 6%, P3 = nanopartikel bioinsektisida T. diversifolia konsentrasi 8%, P4 = nanopartikel bioinsektisida T. diversifolia konsentrasi 10%. Stadia larva terdiri dari 2 taraf, yaitu : S1 = larva stadia 3, S2 = larva stadia 5. Parameter yang diamati yaitu perubahan mortalitas larva, persentase feeding, persentase pupa dan imago terbentuk, imago cacat. Hasil penelitian menunjukkan bahwa nanopartikel bioinsektisida T. diversifolia dapat mengendalikan larva S. frugiperda. Pemberian nanopartikel bioinsektisida T. diversifolia dengan konsentrasi 10% (P4) dapat mengendalikan Spodoptera frugiperda dengan mortalitas 33,33% dan persentase feeding 30,67%. Persentase mortalitas larva S. frugiperda tertinggi (60%) terdapat pada perlakuan P4S1 (konsentrasi 10% pada larva stadia 3). Terbentuknya pupa dan imago terendah dengan aplikasi nanopartikel bioinsektisida T. diversifolia pada perlakuan P4S1 sebesar 40 %. LC50 adalah 9,98% nanopartikel bioinsektisida T. diversifolia dan nilai LT50 adalah 6,10 hari. Pemberian nanopartikel bioinsektisida T. diversifolia dengan konsentrasi 10% dapat mengendalikan S. frugiperda pada larva stadia 3 di laboratorium. Spodoptera frugiperda is the main pest of maize with an attack percentage of 30-60%. S. frugiperda larvae hide in places where pesticides are most difficult to reach, more often found in the curled leaves of corn plants. The purpose of this study was to determine the effectiveness of Tithonia diversifolia extract as a vegetable insecticide to control S. frugiperda larvae in the laboratory. The study used a factorial completely randomized design consisting of 2 treatment factors, namely the dose of T. diversifolia bioinsecticide nanoparticles and the larval stage. The nanoparticle bioinsecticide treatment consisted of 6 levels, namely: P0-= no treatment (control), P0+ = Curacon 500 EC pesticide (active ingredient: Profenos 500 g/l) dose 1 ml/l, P1 = T. diversifolia bioinsecticide nanoparticle concentration 4% , P2 = 6% concentration of T. diversifolia bioinsecticide nanoparticles, P3 = 8% concentration of T. diversifolia bioinsecticide nanoparticles, P4 = 10% concentration of T. diversifolia bioinsecticide nanoparticles. The larval stage consisted of 2 levels, namely: S1 = larval stage 3, S2 = larval stage 5. The parameters observed were changes in larval mortality, feeding percentage, percentage of pupae and imago formed, imago defects. The results showed that T. diversifolia bioinsecticide nanoparticles could control S. frugiperda larvae. The administration of T. diversifolia bioinsecticide nanoparticles with a concentration of 10% (P4) can control Spodoptera frugiperda with a mortality of 33.33% and a feeding percentage of 30.67%. The highest percentage of S. frugiperda larvae mortality (60%) was found in the P4S1 treatment (10% concentration in stage 3 larvae). The lowest pupa and imago formation with the application of T. diversifolia bioinsecticide nanoparticles in the P4S1 treatment was 40%. The LC50 was 9.98% nanoparticles of T. diversifolia bioinsecticide and the LT50 value was 6.10 days. Administration of T. diversifolia bioinsecticide nanoparticles with a concentration of 10% can control stage 3 S. frugiperda larvae in the laboratory
Analisis Strategi Pengembangan Bahan Tanam Klon Karet Unggul Pada Agribisnis Karet Rakyat di Propinsi Sumatera Utara
Get PDFRubber (Hevea brasiliensis Muel Arg.) is a commodity that make country devisa .the goverment have decided the development of national rubber policy from increasing clon using to more than 85% with minimal productivity rate 1500 kg/ha.Purpose of the research is to know the strength/weakness and chance/threat also to analisys the development of rubber clon material for citizen rubber agribuisness in North Sumatera province. North Sumatera province have strength in development of rubber clon material for citizen rubber agribuisness such as have plantation resource, goverment support, rubber farmer resource, and have weakness in seeds resource root stock. Entres resource and the currency control by the charge agency. The cost of the natural rubber is much better now, high request for excellent rubber seeds, in globalisation trading era have chance in development rubber clon material for citizen rubber agribuisness in notrh sumatera province and have threat such as the competition with palm oil commodity, rubber seeds marketing system that not yet efficient also the investation that not fully condusif. The priority strategic in development of excellent rubber clon material for citizen rubber agribuisness in north sumatera province is : 1) rubber entres plantation seeds resource investation and purification entres plantation 2) investation and determine seeds resource plantation for root stock, 3) to build the plantation of rubber entres seeds resource in central location of the contruction for citizen rubber plantation 4) increasing quality seeds control by the charge agency. Key words : excellent clon, rubber entres, rubber agribuisnessÂ
Analisis Strategi Pengembangan Bahan Tanam Klon Karet Unggul Pada Agribisnis Karet Rakyat di Propinsi Sumatera Utara
Get PDFRubber (Hevea brasiliensis Muel Arg.) is a commodity that make country devisa .the goverment have decided the development of national rubber policy from increasing clon using to more than 85% with minimal productivity rate 1500 kg/ha.Purpose of the research is to know the strength/weakness and chance/threat also to analisys the development of rubber clon material for citizen rubber agribuisness in North Sumatera province. North Sumatera province have strength in development of rubber clon material for citizen rubber agribuisness such as have plantation resource, goverment support, rubber farmer resource, and have weakness in seeds resource root stock. Entres resource and the currency control by the charge agency. The cost of the natural rubber is much better now, high request for excellent rubber seeds, in globalisation trading era have chance in development rubber clon material for citizen rubber agribuisness in notrh sumatera province and have threat such as the competition with palm oil commodity, rubber seeds marketing system that not yet efficient also the investation that not fully condusif. The priority strategic in development of excellent rubber clon material for citizen rubber agribuisness in north sumatera province is : 1) rubber entres plantation seeds resource investation and purification entres plantation 2) investation and determine seeds resource plantation for root stock, 3) to build the plantation of rubber entres seeds resource in central location of the contruction for citizen rubber plantation 4) increasing quality seeds control by the charge agency. Key words : excellent clon, rubber entres, rubber agribuisnessÂ
Utilization of Various Vegetable Insecticides to Control Grayak Caterpillars (Spodoptera litura) on Soybean (Glycine max L. Merrill) in Laboratory
Get PDFThe aim of this study was to observe the effect of various vegetable insecticide extracts on controlling armyworm (Spodoptera litura) on soybean plants in the laboratory. The research was conducted at the Plant Protection Laboratory, Faculty of Agriculture, University of Medan Area, from November 2021 to April 2022, using a Completely Randomized Design (CRD) Non Factorial, consisting of 7 treatment levels, namely: N0 = no treatment (control), N1 = Mindi leaf extract concentration 5% (50 m/l water), N2 = Mindi leaf extract 10% (100 ml.l water), N3 = Mindi leaf extract concentration 15% (150 m/l water), N4 Babadotan concentration 5 % (50 ml/l air), N5 = 10% concentration of Babadotan leaf extract (100 ml/lair), N6 = 15% concentration of Babadotan leaf extract (150 ml/lair), with repetition 3. Parameters observed for Armyworm Mortality (%), LC50, LT50, the proportion of the effectiveness of vegetable insecticides on armyworm mortality and the amount of feed consumed. The results showed that the application of vegetable insecticides had a significant and very significant effect on armyworm mortality from 4 days after application to 10 days after application with the highest mortality proportion at a concentration of 15%. The LC50 values of the plant insecticides mindi leaves and babadotan leaves were almost the same, namely 4.69 and 4.48%. The LT 50 value for a concentration of 15% showed that babadotan leaf extract was faster than mindi leaf extract, namely mindi leaves 5.145 days and babadotan leaves 4.633 days. Concentrations of 10 and 15 % of the 2 plant extracts tested showed the same effectiveness on mortality of S. litura caterpillars and higher dissolving concentrations of 5%. The amount of feed consumed was also significantly different with the highest amount of feed in the control treatment (60.75 g) followed by the treatment of mindi leaves and babadotan leaves at concentrations of 15, 10, and 5%
Soybean Plant Growth and Production Response (Glycine max (L.) Merril) to the Application of Liquid Organic Fertilizer (Poc) Apu – Apu (Pistia stratiotes L.) Plant and Various Soil Reformers on Ultisol Soil Media
Get PDFThis study aimed to evaluate the growth and yield responses of soybean (Glycine max L. Merr.) to the application of liquid organic fertilizer (LOF) derived from apu-apu (Pistia stratiotes L.) and various soil conditioners on Ultisol soil. The research was carried out from September to December 2020 at the experimental garden of the Faculty of Agriculture, Universitas Medan Area, located at an altitude of 22 masl with flat topography, Ultisol soil characteristics, and a soil pH of 4.94. The experimens used a randomized block design with two factors: (1) concensrations of apu-apu LOF (0%, 25%, 50%, and 75% per liter of water) and (2) types of soil conditioners (no conditioner, rice-husk biochar, Mucuna bracteata green manure, and human-hair organic amendmens at 50 g per polybag). Observed parameters included plans height, number of branches, flowering age, number of bunches per plans and per plot, number of pods per plans and per plot, seed weight per plans and per plot, and 100-seed dry weight. The results showed that the application of LOF from apu-apu significansly increased several agronomic and yield componenss, namely number of branches at 6 WAP, number of bunches per plans and per plot, number of pods per plans and per plot, seed weight per plans and per plot, and 100-seed dry weight. Meanwhile, the application of differens soil conditioners produced highly significans effects on plans height at 4–6 WAP, number of pods per plant and per plot, seed weight per plans and per plot, and 100-seed dry weight, although it did not significansly affect the number of branches or number of bunches. Overall, the combination of LOF and soil conditioners improved soybean growth and productivity in Ultisol soil conditions
Respon Pertumbuhan Dan Produksi Jagung Manis (Zea mays saccharata Sturt) Terhadap Pemberian Pupuk Cair Bayprint Dan Sekam Padi
Get PDFPenelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk cair Bayprint dan media sekam padi sebagai media tumbuh tanaman terhadap pertumbuhan dan produksi jagung manis. Penelitian dilaksanakan dengan menggunakan Rancangan Acak Kelompok (RAK) faktorial dengan faktor yang diteliti, yaitu: perlakuan sekam padi dan pupuk cair Bayprint. Faktor sekam padi (P) yang terdiri dari: P0 = tanpa sekam, P1 = 2 kg/plot, P2 = 4 kg/plot dan P3 = 6 kg/plot. Faktor pupuk cair Bayprint (B) yang terdiri dari: B0 = tanpa pupuk cair Bayprint, B1 = 1 cc/l air, B2 = 2 cc/l air dan B3 = 3 cc/l air. Parameter yang diamati adalah tinggi tanaman, diameter batang, jumlah daun, panjang tongkol, dan berat tongkol per plot. Hasil penelitian menunjukkan bahwa perlakuan sekam padi hingga dosis 6 kg/plot dapat meningkatkan tinggi tanaman, diameter batang, panjang tongkol, berat tongkol per tanaman, tetapi tidak berpengaruh terhadap jumlah daun tanaman jagung manis. Perlakuan pupuk cair Bayprint hingga konsentrasi 3 cc/l air dapat meningkatkan tinggi tanaman, diameter batang, panjang tongkol, berat tongkol per tanaman, tetapi tidak berpengaruh terhadap jumlah daun tanaman jagung manis. Tidak ada interaksi antara sekam padi dan pupuk cair Bayprint terhadap semua parameter yang diamati
EFIKASI INSEKTISIDA NABATI EKSTRAK BUNGA KEMBANG BULAN (Tithonia diversifolia A. Gray) TERHADAP HAMA ULAT GRAYAK (Spodoptera litura F.) PADA TANAMAN SAWI DI LABORATORIUM
Get PDFArmyworm (Spodoptera litura) is one of the pests that attack vegetable plants in Indonesia. The attack resulted in the leaves of the plant being cut and perforated so as to reduce productivity and even crop failure The aim of the study was to determine effectiveness of Tithonia diversifolia extract as a vegetable insecticide to control the Spodoptera litura in mustard plants at the laboratory. The study used a completely non-factorial randomized design consisting of 5 treatments, K0 = no extract (control), K1 = concentration 4%, K2 = concentration 6%, K3 = concentration 8%, K4 = concentration 10%. Parameters observed were morphological changes and insect behavior, percentage of larval mortality, percentage of pupae and imago formed. The results that Tithonia diversifolia extract can control Spodoptera litura. The result of 8% (K3) Tithonia diversifolia extract effectively controls Spodoptera litura. The highest percentage of larval mortality of Spodoptera litura (80%) was found in the treatment of K3 (concentration 8%) at observation 9 HSA and the lowest mortality was found in K1 (concentration 4% with an average 67.5%. The lowest formation of pupa and imago in the K3 treatment was 20 and 29.17
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