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Jurnal Penelitian Pertanian Terapan

JPPT
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Published by Politeknik Negeri Lampung

ISSN : 14105020 EISSN : 24071781 DOI : -

Core Subject : Agriculture,

Agriculture, Biological Sciences & Forestry

Jurnal Penelitian Pertanian Terapan is a peer-reviewed journal that publishes scientific articles from agricultural disciplines covering Plantation crops, Food crops and horticulture, food Technology, Agriculture biology and agribusiness. Articles published in the Journal of Applied Agriculture may be research results (original) and scientific review articles (review). Applied Journal of Agriculture is published by Research Unit and Community Service of Lampung State Polytechnic Society 3 edition one year, that is January, May, and September. JPPT was first published in January 2000. JPPT published a print version in 2007, then started the online version or Open Journal System (OJS) in 2014. Early online versions of JPPT or OJS editing have not yet been fully implemented online management and are beginning to make improvements Web Journal view and journal cover and OJS governance management on Volume 2 No. 2 of 2017. JPPT has been indexed on Google Scholar and Garuda IPI by 2015, and by 2017 it has indexed SINTA and registered DOAJ and Crossref in the same year. We accept submissions from all over Indonesia. All submitted articles will not be published elsewhere, original and not considered for other publications.

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Articles 759 Documents

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Efektivitas Beberapa Isolat Trichoderma Sp. Terhadap Keterjadian Penyakit Bulai yang Disebabkan oleh Peronosclerospora maydis dan Pertumbuhan Tanaman Jagung (Zea mays) Ivayani Ivayani; Faris Faishol; Joko Prasetyo; Muhammad Nurdin
Jurnal Penelitian Pertanian Terapan Vol 18 No 1 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i1.641

Corn (Zea mays) is one of the important cereals crops as the source of food, animals feed or energy.Â The corn produces has decreased by year to year. One of the factors that decreased the corn produces is downy mildew.Â Downy mildew desease caused by Peronosclerospora maydis fungi that decreased the production until 90%.Â Application of antagonistic fungi is one of the alternative control. Trichoderma spp. is one of the antagonistic fungi that can suppress growth of another fungus.Â Trichoderma spp. is saprofit soil microorganism that naturally attacks pathogen fungi and has benefits for plant growth.Â This research was aimed to know the effect of some isolates of Trichoderma spp. for diseases of downy mildew and the effect for the plant growth.Â Treatments were prepared with Randomized Complete Block (RCB) with 7 treatments and 4 repetitions. The treatments consist are P0 (control), P1 (application Trichoderma viride isolate GDR), P2 (application Trichoderma harzianum isolate TRJ), P3 (application Trichoderma harzianum isolate TGN), P4 (application Trichoderma viride isolate NTF), P5 (application Trichoderma longibrachiatum isolate GRP) and P6 (application Trichoderma viride isolate KLN).Â The results of this researchÂ were Trichoderma viride isolate GDR, Trichoderma harzianum isolate TGN, Trichoderma viride isolate NTF and Trichoderma viride isolate KLN can be suppressed the disease incidence of downy mildew, but unaffected for the plants growth.

Identifikasi Kandungan Logam Timbal (Pb) Pada Buah Nangka (Artocarpus Heterophyllus) Di Media Jalan Kota Bandar Lampung Rama Wicaksa; Agus Setiawan; Slamet Budi Yuwono; Samsul Bakri
Jurnal Penelitian Pertanian Terapan Vol 18 No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jppt.v18i2.684

Lead (Pb) is a heavy metal that naturally exists in the earth's crust and diffuses in small amounts through natural and artificial processes. This study aims to determine the amount of lead contained in the fruit jackfruit (Artocarpus heterophyllus) in the median street Bandar Lampung City. To know the factors that affect the lead content of jackfruit (Artocarpus heterophyllus) is done regression analysis. Research shows that the lead content of the jackfruit (Artocarpus heterophyllus) in the median of Bandar Lampung City road has exceeded the consumption limit, besides the factors affecting the lead content of the jackfruit (Artocarpus heterophyllus) to be the tree season, the geometry of the bend, the topography of the incline and the derivative.

Pengaruh Komposisi Kompos Baglog Terhadap Pertumbuhan Dan Hasil Tanaman Bawang Merah (Allium ascalonicum L.) burhan, badri; Proyogo, Riski
Jurnal Penelitian Pertanian Terapan Vol 18, No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Bawang adalah komoditas yang memiliki nilai ekonomi tinggi. Permintaan bawang merah terus meningkat seiring pertumbuhan populasi. Penggunaan media tanam yang tepat akan menentukan pertumbuhan dan hasil panen. Secara umum media tanam yang baik adalah media tanah yang subur, kaya akan bahan organik, ketersediaan nutrisi dalam jumlah cukup, dan rasio udara dan air yang terkandung di dalamnya seimbang. Tujuan dari enelitian ini adalah untuk mengetahui pengaruh dosis kompos baglog (limbah jamur tiram) terhadap pertumbuhan dan hasil produksi tanaman bawang merah. Penelitian telah dilakukan di polybag di petak percobaan, di Jl. Bypass Raya no. 24, Rajabasa Bandar Lampung. Periode penelitian 4 bulan dimulai dari bulan November 2016 sampai Februari 2017. Metode penelitian menggunakan Rancangan Acak Kelompok (RAKL) dengan lima ulangan. Komposisi kompos baglog dengan volume terdiri dari enam tingkatan: K0 = perlakuan kontrol; K1 = ground: baglog (3: 1); K2 = tanah: baglog (2: 1); K3 = ground: baglog (1: 1); K4 = tanah: baglog (1: 2); dan K5 = ground: baglog (1: 3). Kesimpulan penelitian: (a). Penerapan dosis kompos pada perlakuan K3 (baglog 50%: soil 50%) berpengaruh signifikan terhadap pertumbuhan dan produksi yang lebih tinggi yaitu pada variabel tinggi tanaman = 53,57 cm; jumlah umbi = 5,40 buah; berat bohlam = 31,53 gram; dan diameter umbi = 2,05 cm. Sedangkan pada aplikasi kompos baglog dengan komposisi K2 (baglog 33%: 67% tanah) memberikan efek nyata terhadap variabel jumlah daun lebih besar yaitu sebanyak 13 helai, dan berat basah bawang putih bawang putih adalah 48,10 gram. Komposisi kompos Baglog dengan komposisi K4 (komplek 33% tanah: baglog kompos 67%) dan K5 (tanah 25%: kompos baglog 75%) menunjukkan hasil parameter rendah. Pada perlakuan K4 dan K5 Intensitas serangan layu fusarium mencapai 14,67%.

Analisis Jalur Respons Hasil Kedelai (Glycine max (L.) Merr.) Varietas Unggul Nasional Terhadap Dua Cara Pemberian Kombinasi Pupuk Npk Timotiwu, Paul Benyamin; Nurmiaty, Yayuk; Pramono, Eko; Kusuma, Yosep Riando
Jurnal Penelitian Pertanian Terapan Vol 18, No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Path analysis is one of the causal analysis and is an advanced analysis of correlation and regression studies. Path analysis is the development of correlation analysis that explains the closeness of the relationship between characters by way of outlining correlation coefficients into direct and indirect effects. This research was aimed to obtain information on the direct and indirect effects of agronomic characteristics on the production. This research uses Siti Maysaroh research data entitled “The Effect Of NPK Fertilizer On the Growth And Production Of Four Soybean Varieties (Glycine max (L.) Merr)”. The data that have been obtained will then be analyzed using path analysis method. Data is analyzed using microsoft excel program. The results of this study show the difference between the two models, namely: on the way of fertilizer feeding two variables that directly affect the yield of soybean production is the weight of 100 grains, whereas On the way of giving a one-time fertilizer variables that directly affect the yield of soybean production is the number of pod

Efikasi Herbisida Isopropilamina Glifosat Dalam Mengendalikan Gulma Perkebunan Karet (Hevea Brasiliensis) Belum Menghasilkan Pamungkas, Hendi; Sembodo, Dad R.J.; Evizal, Rusdi; Pujisiswanto, Hidayat
Jurnal Penelitian Pertanian Terapan Vol 18, No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Karet (Hevea brasiliensis) merupakan tanaman perkebunan penting di Indonesia karena produknya digunakan sebagai bahan baku industri karet dan sumber devisa negara. Keberadaan gulma pada lahan karet menyebabkan terjadinya persaingan sarana tumbuh dan mempengaruhi pertumbuhan tanaman karet. Salah satu bahan aktif herbisida yang umum digunakan untuk mengendalikan gulma pertanaman karet TBM adalah isopropilamina glifosat. Penelitian ini bertujuan untuk (1) mengetahui dosis herbisida isopropilamina glifosat yang efektif mengendalikan gulma pada pertanaman karet TBM, (2) mengetahui perubahan komposisi gulma akibat aplikasi herbisida isopropilamina glifosat, (3) mengetahui apakah terjadi fitotoksisitas tanaman karet akibat aplikasi herbisida isopropilamina glifosat. Penelitian ini dilakukan di kebun karet rakyat di desa Marga Agung, Kecamatan Jati Agung, Kabupaten Lampung Selatan dan Laboratorium Gulma Fakultas Pertanian Universitas Lampung pada November 2016 hingga Maret 2017. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan empat ulangan dan enam taraf perlakuan yaitu dosis herbisida isopropilamina glifosat 796,5 g/ha (P1), 1062 g/ha (P2), 1327,5 g/ha (P3), 1593 g/ha (P4), penyiangan mekanis (P5), dan tanpa pengendalian/control (P6). Homogenitas ragam data diuji dengan uji Bartlett, additivitas data diuji dengan uji Tukey, dan perbedaan nilai tengah perlakuan diuji dengan uji Beda Nyata Terkecil (BNT) pada taraf 5%. Hasil penelitian menunjukkan bahwa: (1) herbisida isopropilamina glifosat dosis 796,5 – 1593 g/ha efektif mengendalikan gulma total, gulma rumput hingga 12 MSA dan gulma teki hingga 4 MSA, serta dosis 1593 g/ha efektif mengendalikan gulma daun lebar hingga 8 MSA, (2) dosis 1327,5 – 1593 g/ha efektif mengendalikan gulma Ottochloa nodosa hingga 12 MSA dan Commelina diffusa hingga 4 MSA, (3) dosis 796,5 – 1593 g/ha efektif mengendalikan gulma Cyperus brevifolius hingga 4 MSA, serta dosis 1593 g/ha efektif mengendalikan gulma Asystasia gangetica hingga 8 MSA, (4) dosis 796,5 – 1593 g/ha menyebabkan terjadinya perubahan komposisi gulma pada 4, 8, dan 12 MSA, (5) dosis 796,5 – 1593 g/ha tidak meracuni tanaman karet. Kata kunci: Gulma, herbisida, isopropilamina glifosat, karet

Aplikasi Kompos dan Arang Aktif Sebagai Bahan Amelioran di Tanah Berpasir Terhadap Pertumbuhan Tanaman Caisim (Brassica juncea L.) Priyadi, Priyadi; Jamaludin, Jamaludin; Mangiring, Windu
Jurnal Penelitian Pertanian Terapan Vol 18, No 2 (2018)
Publisher : Politeknik Negeri Lampung.

Salah satu upaya dalam pemanfaatan tanah berpasir adalah dengan menambahkan bahan amelioran. penambahan bahan amelioran dapat menggunakan kompos yang berperan penting dalam meningkatkan sifat fisik, kimia dan biologi tanah. Tujuan dari penelitian ini untuk mengetahui pengaruh kompos dan arang aktif sebagai bahan amelioran pada tanah berpasir terhadap pertumbuhan tanaman sawi (Bressica juncea L). Penelitian dilaksanakan di Rumah Kaca STIPER Dharma Wacana Metro, sedangkan analisis tanah dilakukan di laboratorium Balai Penelitian Tanah Taman Bogo Lampung. Rancangan penelitian menggunakan rancangan acak kelompok (RAK) dengan 4 perlakuan dan 3 ulangan. Parameter yang diamati pada tanaman adalah berat basah dan berat kering tanaman dilakukan pada akhir setelah panen dipanen. Sedangkan parameter sifat tanah yaitu pH, kadar air, N-Total, dan C-organik. Hasil penelitian menunjukkan penggunaan bahan amelioran dalam bentuk arang aktif dan kompos dapat memperbaiki sifat tanah berpasir yang ditunjukkan dengan peningkatan pH, kadar air, C-organik, dan N-total. Pengaruh pertumbuhan tertinggi ditunjukkan pada perlakuan PK yaitu 9.86 gram. Sedangkan pada pertumbuhan akar tanaman tertinggi ditunjukkan pada perlakuan PKA sebesar 1.07 gram. Secara umum penggunaan amelioran pada penelitian ini memberikan pengaruh yang baik terhadap perubahan sifat tanah berpasir dan pertumbuhan pada tanaman caisim.

HUBUNGAN ANTARA KANDUNGAN PATI RESISTEN DAN KUALITAS TANAK BERAS SIGER (TIWUL MODIFIKASI) Hidayat, Beni; Muslihudin, M.; Akmal, Syamsul
Jurnal Penelitian Pertanian Terapan Vol 18, No 1 (2018)
Publisher : Politeknik Negeri Lampung.

Pati resisten merupakan fraksi pati yang tidak dapat terhidrolisis oleh enzim-enzim pencernaan pada usus halus dan diklasifikasikan sebagai senyawa prebiotik. Peningkatan kandungan pati resisten hingga jumlah tertentu pada Beras Siger (tiwul modifikasi) akan menurunkan karakteristik kualitas tanaknya. Penelitian bertujuan mengkaji hubungan antara kandungan pati resisten dan kualitas tanak Beras Siger (kepulenan, tekstur, dan rasa). Peningkatan kandungan pati resisten pada Beras Siger dilakukan melalui penerapan siklus pemanasan-pendinginan, melalui tahapan pengukusan, pendinginan hingga suhu kamar, dilanjutkan dengan pendinginan pada suhu 4oC selama 0 jam/kontrol, 12 jam, 24 jam, 36 jam, dan 48 jam. Hasil penelitian menunjukkan bahwa peningkatan kandungan pati resisten hingga konsentrasi ≤ 10% (9.85%) akan meningkatkan karakteristik kualitas tanak Beras Siger untuk seluruh skor organoleptik yaitu kepulenan (7,15 menjadi 8.2), tekstur (7.05 menjadi 8.35), dan rasa (6.95 menjadi 8.15); sebaliknya peningkatan kandungan pati resisten pada konsentrasi lebih dari 10% akan menurunkan karakteristik kualitas tanak Beras Siger untuk seluruh skor organoleptik yaitu kepulenan (7.15 menjadi 6.8), tekstur (7.05 menjadi 6.6), dan rasa (6.95 menjadi 6.4).

Efektivitas Beberapa Isolat Trichoderma Sp. Terhadap Keterjadian Penyakit Bulai yang Disebabkan oleh Peronosclerospora maydis dan Pertumbuhan Tanaman Jagung (Zea mays) Ivayani, Ivayani; Faishol, Faris; Prasetyo, Joko; Nurdin, Muhammad
Jurnal Penelitian Pertanian Terapan Vol 18, No 1 (2018)
Publisher : Politeknik Negeri Lampung.

Corn (Zea mays) is one of the important cereals crops as the source of food, animals feed or energy. The corn produces has decreased by year to year. One of the factors that decreased the corn produces is downy mildew. Downy mildew desease caused by Peronosclerospora maydis fungi that decreased the production until 90%. Application of antagonistic fungi is one of the alternative control. Trichoderma spp. is one of the antagonistic fungi that can suppress growth of another fungus. Trichoderma spp. is saprofit soil microorganism that naturally attacks pathogen fungi and has benefits for plant growth. This research was aimed to know the effect of some isolates of Trichoderma spp. for diseases of downy mildew and the effect for the plant growth. Treatments were prepared with Randomized Complete Block (RCB) with 7 treatments and 4 repetitions. The treatments consist are P0 (control), P1 (application Trichoderma viride isolate GDR), P2 (application Trichoderma harzianum isolate TRJ), P3 (application Trichoderma harzianum isolate TGN), P4 (application Trichoderma viride isolate NTF), P5 (application Trichoderma longibrachiatum isolate GRP) and P6 (application Trichoderma viride isolate KLN). The results of this research were Trichoderma viride isolate GDR, Trichoderma harzianum isolate TGN, Trichoderma viride isolate NTF and Trichoderma viride isolate KLN can be suppressed the disease incidence of downy mildew, but unaffected for the plants growth.

Rubber (Hevea brasiliensis) is an important plantation crop in Indonesia because its products are used as raw material for rubber industry and source of stock-exchange. The existence of weeds on the rubber land causes competition of growing facilities and affect the growth of rubber plants. One of the most common herbicide active ingredients that used to control immature plant weeds is isopropylamine glyphosate. This research aims to (1) find out the dose of isopropylamine glyphosate herbicide that effectively control weeds in immature rubber cultivation, (2) to know the change of weed’s composition due to the application of isopropylamine glyphosate herbicide, (3) to know whether the phytotoxicity of rubber plants occurs due to isopropylamine glyphosate herbicide application. This research was conducted in smallholder rubber plantation in Marga Agung Village, Jati Agung Subdistrict, South Lampung Regency and Weed Laboratory of Agriculture Faculty of Lampung University from November 2016 until March 2017. This research used randomized block design (RAK) with four replicates and six treatment levels dose of herbicide isopropylamine glyphosate herbicide 796,5 g/ha (P1), 1062 g/ha (P2), 1327.5 g/ha (P3), 1593 g/ha (P4), mechanical weeding (P5), and without restraint/control (P6). The homogeneity of various data was tested by Bartlett test, the data additivity was tested by Tukey test, and the difference of median treatment was tested by Least Significant Different (LSD) test at 5% level. The results showed that: (1) isopropylamine glyphosate herbicide dose 796,5 – 1593 g/ha effectively controlling total weeds, grass weeds up to 12 weeks after application and nut grass weeds up to 4 weeks after application, and dose 1593 g/ha effectively controlling leaf weeds up to 8 weeks after application, (2) dose 1327,5 – 1593 g/ha effectively controlling Ottochloa nodosa weeds up to 12 weeks after application and Commelina diffuse up to 4 weeks after application, (3) dose 796,5 – 1593 g/ha effectively controlling Cyperus brevifolius weeds up to 4 weeks after application, and doses of 1593 g/ha effectively controlling Asystasia gangetica weeds up to 8 weeks after application, (4) doses of 796,5 – 1593 g/ha resulted in changes in weed’s composition at 4, 8, and 12 weeks after application, (5) doses 796,5 – 1593 g/ha does not poison the rubber plant.

Karakter Agronomi dan Potensi Hasil 10 Genotipe Padi Tipe Baru pada Dua Lingkungan Tumbuh Berbeda Dulbari, Dulbari; Sa’diyah, Nyimas; Kamal, Muhammad; Tianigut, Gut
Jurnal Penelitian Pertanian Terapan Vol 18, No 1 (2018)
Publisher : Politeknik Negeri Lampung.

The purpose of this study was to evaluate the agronomic characters and yield potential of ten new plant type (NTP) of rice genotypes planted on two different agroecologies. The study was done in East Lampung (Ultisols soil type, altitude 60 m asl, and average daily temperature 26,86°C) and Tanggamus (Andisols soil type, altitude 600 m asl, and average daily temperature 24.15°C) in January—Juni. The research was arranged in randomized complete block design (RCBD) with 12 treatments and 3 replications. The treatment consisted of 10 new type of rice genotypes, i.e., IPB 3S, IPB 4S, IPB 5R, IPB6R, IPB117-F-7-2-1, IPB 117-F-7-7- 1, IPB 117-F-14-4-1, IPB 117-F-15-4-1, IPB 117-F-20-1-1, IPB 117-F-80- 2-1, and two varieties, i.e., Ciliwung and Ciherang as control. The results showed that all NPT genotypes had lower number of tillers but the hill height were taller than the Ciliwung and Ciherang varieties. Eight genotypes had a faster harvesting time, and one genotype had a higher yield than two control varieties.

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