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INDONESIA
Jurnal Penelitian Tanaman Industri
Published by Kementerian Pertanian
ISSN : 08538212     EISSN : 25286870     DOI : -
Core Subject : Engineering,
Industrial & Manufacturing Engineering
Jurnal Penelitian Tanaman Industri merupakan publikasi ilmiah primer yang memuat hasil penelitian primer komoditas perkebunan yang belum dimuat pada media apapun, diterbitkan oleh Pusat Penelitian dan Pengembangan Perkebunan, DIPA 2011 terbit empat kali setahun.
Arjuna Subject : -
Articles 552 Documents
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PRIORITAS KEBIJAKAN UNTUK PENGEMBANGAN SISTEM PERBENIHAN LADA DI KABUPATEN BANGKA SELATAN / Policy Priorities for Developing Pepper Seed System in The Regency of South Bangka Agus Wahyudi; Suci Wulandari
Jurnal Penelitian Tanaman Industri Vol 23, No 2 (2017): Desember, 2017
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v23n2.2017.72-82

Abstract

Pepper farming is dominant in South Bangka Regency. Pepper production in South Bangka reached 50.92% of total production in Bangka Belitung Islands Province, but productivity only achieved 1.29 ton/ha. One of essential factors to pursue the improvement of pepper production is recomended seeds, on the other side the seed systems is not developed yet. To support the development of pepper farming system required a reliable seed system. The objective of the study are to analyze the system of pepper seed, and to set priority policy development of pepper seed system. The method used to develop policy priorities is the Analytical Hierarchy Process (AHP), which is supported by descriptive statistics.The performance of pepper seed system in South Bangka Regencyhas not been able to produce quality seeds that are easily accessible by farmers. The using of superior seeds is still low. This is related to the limited availability of seeds, price of seed, availability of certain seeds sources, knowledge of the benefits of high quality seeds, and limited information about seeds. Government is the institution that most influence the development of seed system. The price of white pepper is a factor most influences pepper seed system, followed by the performance of pepper seed production, pepper seed quality, and competition among seed producers. The policy required to support major pepper development is developingparent garden, followed by enhancing seed breeder capability, improving seed quality control system, developing seed infrastructure, creating partnership, developing seed information system, and increasing access to credit.Keywords: seed, pepper, seed system, policy development AbstrakUsahatani lada mendominasi pertanian di Kabupaten Bangka Selatan. Produksi lada Bangka Selatan mencapai 50,92% dari total produksi di Provinsi Kepulauan Bangka Belitung, namun produktivitas usahatani lada saat ini baru mencapai1,29 ton/ha dan berpotensi untuk ditingkatkan. Salah satu penyebab rendahnya produktivitas adalah masih tingginya penggunaan benih asalan di tingkat petani karena sistem perbenihan yang menghasilkan benih bermutu belum berkembang. Penelitian ini bertujuan untuk menganalisis sistem perbenihan lada dan menyusun prioritas kebijakan pengembangan sistem perbenihan lada. Metode yang digunakan untuk menyusun prioritas kebijakan adalah Analytical Hierarchy Process (AHP) yang ditunjang dengan statistik deskriptif. Kinerja sistem perbenihan lada di Kabupaten Bangka Selatan yang saat ini berjalan belum mampu menghasilkan benih bermutu yang mudah diakses oleh petani, walaupun sudah terdapat beberapa pelaku yang mengarah untuk terbangunnya sistem perbenihan tersebut. Penggunaan bibit unggul yang masih rendah terkait dengan keterbatasan ketersediaan benih bina, tingginya harga benih bina, belum tersedianya sumber benih jenis tertentu, pengetahuan masyarakat akan manfaat benih unggul bermutu yang masih rendah, serta keterbatasan informasi mengenai benih. Pemerintah merupakan lembaga yang memberikan pengaruh terbesar dalam pengembangan sistem perbenihan. Harga lada putih menjadi faktor yang sangat mempengaruhi pengembangan sistem perbenihan lada, diikuti oleh kinerja produksi benih lada, mutu benih lada, dan persaingan antar produsen benih. Kebijakan utamayang diperlukan untuk mendukung pengembangan lada adalah pembangunan kebun induk, dan diikuti dengan kebijakan lain yaitu: peningkatan kemampuan penangkar benih, perbaikan sistem pengawasan mutu benih, pembangunan infrastruktur benih, pengembangan kemitraan, pengembangan sistem informasi perbenihan dan peningkatan akses kredit.Kata kunci: benih, lada, sistem perbenihan, pengembangan kebijakan
PENYEBAB DAN SERANGGA VEKTOR PENYAKIT KERITING PADA TANAMAN LADA RODIAH BALFAS; SUPRIADI SUPRIADI; T. L. MARDININGSIH; ENDANG SUGANDI
Jurnal Penelitian Tanaman Industri Vol 8, No 1 (2002): Maret, 2002
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v8n1.2002.7-11

Abstract

The cause of stunting disease of black pepper (Piper nigrum) in Indonesia has not yet been confirmed cither due o a virus or mycoplaam. However, similar disease found on black pepper plants in the Southeast Asia is caused by Piper yellow mottle virus (PYMV) which is transmitted by Planococcus citri. This expeiments was aimed o examine the cause of the stunting disease and its insect vectors. The expeiment were conducted from October 1998 to May 2001. Diseased vegetative materials of black pepper plants showing stunting disease were collected from Sukamulya, Sukabumi. The potential insect vectors were collected from black pepper plants in Bogor, IP Sukamulya (Sukabumi), Lampung and Bangka. The insects were fed on the diseased plants obtained from Lampung, Bogor and IP Sukamulya, then transferred o the healthy plants. The healthy plants were produced rom true seeds and cutings oiginated rom Bogor and IP Sukamulya. The tested plants were incubated at the green house and examined for disease development. Diseased leaf samples collected rom black pepper plant rom IP. Sukamulya and the transmitted plants were sent to the University of Minnesota, USA for Ihe virus (PYMV) by using ISEM (immunosorbent electron microscope). The result snowed that the leaves samples rom IP. Sukamulya were infected by PYMV. The morphology and size of the virus were similar to those caused stunting disease in the South East Asia. Potential insects vectors found on the diseased black pepper plants were two mealybugs, P. minor and Ferrisia virgata (Hemiptera; Coccoidca: PaaidbcoccidaeX aa well as an aphid Toxoptera aurantii (Hemiptera: Aphidoidea: Aphididae). The first tial on disease transmission by using P. minor, previously reared on the potato tubers, showed one out of ten tested plants produced disease sympom. The subsequent trial using P minor, bred on healthy black pepper seedlings, showed thee out often tested plants developed disease symptoms. None of the aphid transmitted plants developed Ihe disease. This study confirmed thai PYMV b the cause of stunting disease on black pepper in IP Sukamulya and Lampung and P. minor as the insect vecor of the disease.
PENGARUH PERIODE PENCAHAYAAN TERHADAP PERTUMBUHAN, HASIL DAN KOMPONEN MINYAK TANAMAN MENTHA (Mentha piperita L.) ROSIHAN ROSMAN; SRI SETYATI HARJADI; SUGENG SUDIATSO; SUDIRMAN YAHYA; BAMBANG SAPTA PURWOKO; nFN CHAIRUL
Jurnal Penelitian Tanaman Industri Vol 10, No 1 (2004): Maret 2004
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v10n1.2004.12-20

Abstract

Penelitian yang betujuan mcngkaji pengaruh periode pcncahayaan terhadap petumbuhan, hasil dan komponen minyak tanaman M. piperita L, telah dilakukan di Instalasi Penelitian Balai Penelitian Tanaman Rempah dan Obat, Lembang, Jawa Barat, dai bulan Januari 2000 hingga Juli 2000. Penelitian dilakukan dua tahap. Tahap pertama membuat variasi lingkungan cahaya dan tahap kedua penyulingan dan analisis komponen minyak dengan kromatograi gas spektrometer massa. Penelitian menggunakan rancangan acak kelompok 5 perlakuan, yaitu I^> (panjang hari normal sebagai kontrol), L, (pemutusan periode gelap 1 jam, pukul 21.00-22.00 mulai umur 30 hari), Lj (pemutusan peiode gelap 1 jam, pukul 21.00-22.00 mulai umur 60 hai), Lj (penambahan cahaya 4 jam, pukul 18.00-22.00 mulai umur 30 hai), dan U (penambahan cahaya 4 jam, pukul 18.00-22.00 mulai umur 60 hari). Hasil penelitian menunjuk¬ kan bahwa perubahan lingkungan mengubah fcnologi tanaman M. piperita L, meliputi petumbuhan vegetatif dan reproduktif, yang selanjutnya mempengaruhi sintesis menthol. Penambahan cahaya 4 jam mulai umur 30 hari setelah tanam (Li) memberikan petumbuhan vegetatif dan reproduktif paling baik, dengan ciri-ciri morfologi tanaman sebagai berikut tanaman berbunga, batang tegak (tidak rebah), tanaman tinggi, diameter batang besar, jumlah ruas banyak, stolon sedikit, jumlah daun banyak dan lebar. Fcnologi tanaman yang mcmiliki petumbuhan vegetatif dan reproduktif yang baik dapat menghasilkan produksi tema dan minyak yang tinggi. Perubahan fcnologi tanaman akibat manipulasi lingkungan mengubah komponen minyak dan mutu menthol. Fcnologi tanaman yang memiliki petumbuhan vegetatif maupun reproduktif yang baik menghasil¬ kan menthol tinggi dan menthofuran rendah. Penambahan cahaya 4 jam mulai umur 30 hari setelah tanam menghasilkan minyak dengan kadar menthol paling tinggi yaitu 54.89% dan menthofuran paling rendah yaitu 7.83%.Kata kunci: Hasil, komponen, minyak peppermint, Mentha piperita L., peiode pcncahayaan ABSTRACTEffect ofphotoperiod on the growth, yield and component ofpeppermint oilResearch on the effect of photoperiod on the growth, yield and component of peppermints oil of M. piperita, was carried out in the expeimental garden of the Institute for Spice and Medicinal Crops, Lembang West Java, from January to July, 2000. The study was conducted in two steps, i.e. The irst step was manipulation of photo peiod using TL lamps and the second step was distillation and analisis of peppermint oil from their products with gas chromatography and mass spectromctry. The experiment used ive treatments, i.e. (1) control or normal light peiod, (2) four hours light supplement at the age of 30 days and 60 days ater planting, and (3) one hour interruption of dark peiod at the age of 30 days and 60 days. The result showed that the changes in light peiod affected the phenology of the crop. Four hours light supplement at the age of 30 days gave the best vegetative and reproductive growth (morphology of Mentha piperita i.e. flowering, erect stem, tall, wide, large stem, more internodes, leafy, and developed only few stolons). This morphology also resulted in the highest resh mateial and oil product. The change of phenology as the effect of light peiode manipulation could change oil component and inally the quality of menthol. Four hours light supplement at 30 days ater planting showed (he highest menthol content (54.89%) and the lowest menthofuran (7.83%).Keywords: Mentha piperita L., component, photoperiod, yield, peppermint oil
PERAN DAN POTENSI MUSUH ALAMI DALAM PENGENDALIAN HeUcoverpa armigera (HUBNER) PADA KAPAS NURINDAH NURINDAH; DWI ADI SUNARTO; SUJAK SUJAK
Jurnal Penelitian Tanaman Industri Vol 7, No 2 (2001): Juni,2001
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v7n2.2001.60-66

Abstract

The role and potency of natural enemies in controlling HeUcoverpa armigera Hubner in cottonHeUcoverpa armigera. known as the cotton bollworm, is one of cotton productivity limiting factors. Efforts in controlling this pesl have been directed lo (he use of its natural enemies, viz. parasiloids. predator and insect pathogens in conservation techniques The study was conducted in two activities. The irst activity was the inventory of parasiloids and predators of// armigera. which was conducted from 1986 to 1999 in the cotton development area in Central Java (Rembang, Pati, and Grobogan).  East Java (Situbondo, Banyuwangi, Tuban. and Lanongan), NIB (Menangabaris. Lokopriya, and Sandubaya), and NTF (Maumere, Wailiti. and Larantuka). The second activity was to sludy the potency of dominant parasiloids and predators in cotton, which was conducted in 1999/2000 in the Research Instalaiion for Tobacco and Fibre Crops, Asembagus. The objectives of the study were to evaluate Ihe diversity of natural enemies, particularly parasiloids and predators, and their role in controlling Ihe population of // armigera in cotton. The inventory of parasiloids and predators was conducted to 15 and 21 species, respectively. The predominant parasiloids were Trichogramma-loidea armigera Nagaraja (egg parasitoid) and Eriborus argenteopilosus Camreon (larval parasitoid). The predominant predators were Deraeocoris indianus Carvalho, Campylomma diversicornis Rcuter (Hemiptera Miridae). Paederus fasciatus Curtis (Coleoptera Staphylinidac) and Coccinellid beetles (Coleoptera Coccincllidac). These predators feed on eggs and small larvae of //. armigera. The potency of these parasiloids and predator, as mortality factors of the pesl, was quantitatively studied in insecticide sprayed and unsprayed cotton ields. The egg and larval parasiloids caused mortality of //. armigera eggs and larvae as high as 65% and 21%, respectively. The predators suppressed // armigera population by 82%, so that its population was lower than that of the plots treated with insecticide. These suppressions resulted in a significantly lower damage of cotton fruiting bodies (4.3-8.0% on sprayed plots vs.1.7-3.4% on unsprayed plots) and hence, a signiicantly higher production of seed cotton ( I 838 kg/ha on sprayed plots vs. 2 170 kg/ha on unsprayed plots). Thereore, // armigera population on collon basically could be managed by its natural enemies below its action threshold, when Hie natural enemies were allowed to build up their population.
RESPON TEMBAKAU MADURA TERHADAP DUA TIPE PUPUK ORGANIK . MASTUR; A. S. A. MURDIYATI; . DJAJADI; . HERIISTIANA
Jurnal Penelitian Tanaman Industri Vol 10, No 4 (2004): Desember, 2004
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v10n4.2004.142-148

Abstract

Penelitian dilaksanakan untuk menclaah pengaruh dua tipe pupuk organik yaitu pupuk organik dari hasil samping industri yang diperkaya atau selanjutnya disebut Pupuk Organik Diperkaya (POD) dan pupuk kandang dari kotoran sapi terhadap sifat fisik tanah, serapan hara, keragaan tanaman, hasil dan mutu tembakau madura. Percobaan dilakukan dari bulan April sampai September 2002. Percobaan lapang pada tanah tegal di Desa Guluk-guluk, Kecamatan Guluk-guluk, Kabupaten Sumenep. Per¬ lakuan tcrdiri dari sembilan kombinasi dosis (0-7 000 kg/ha) dan tipe pupuk organik (POD dan pupuk kandang) dengan empat ulangan. Hasil penelitian menunjukkan bahwa POD lebih unggul dalam kandungan hara dan pengaruhnya pada tembakau dibanding pupuk kandang. POD dapat meningkatkan kadar air tanah pada kapasitas lapang dan konsentrasi K dalam tanaman. Perlakuan terbaik adalah POD dosis 5 000 kg/ha dengan bobot daun rajangan kering 1 156 kg/ha, indeks mutu 73.4 dan indeks tanaman 77.2. POD dosis 1 000 kg/ha menghasilkan daun rajangan kering 849 kg/ha, indeks mutu 76.8 dan indeks tanaman 60.0. Dosis POD tersebut lebih baik dibanding pupuk kandang yang sama. Respon tembakau terhadap dosis POD 7 000 kg/ha lebih jelek dibanding 5 000 kg/ha.Kata kunci : Tembakau, Nicotiana tabacum L., pupuk organik, pupuk kandang, hasil mutu ABSTRACT Responses of madura tobacco to two types of organic fetilizersThe research was conducted to find out the effect of the Enriched Organic Fertilizer (POD) of industrial by product and Farmyard Manure (FYM) on soil physical properties, nutrient uptake, plant performance, yield, and quality of madura tobacco. Field experiment was conducted from April to September 2002 in upland ield of Guluk-guluk village, Guluk-guluk sub district, Sumenep. The research used randomized completely block design (RCBD) with 9 combinations of organic fertilizer kinds and dosages and 4 replications. The results showed that the POD gave higher effect and nutrient contents than that of FYM. The POD could increase the field capacity soil moisture and K biomass concentration. The best treatment of the POD was 5 000 kg/ha, which gave yield I 156 kg, dried sliced leaves/ha, quality index 73.4 and crop index 77.2. The application of the POD 1 000 kg/ha produced 849 kg dried sliced leaves/ ha, quality index 76.8, and crop index 60.0, which was better than that of FYM 5 000 kg/ha. The application of POD 7 000 kg/ha caused worse response of tobacco compared to that of 5 000 kg/ha.Key words : Tobacco, Nicotiana tabacum L. organic fetilizers, farmyard manure, yield, quality
PERBANYAKAN SERANGGA Helopeltis antonii SIGN. PADA BUAH KETIMUN DAN PUCUK JAMBU MENTE DJATNIKA KILIN; WARSI RACHMAT ATMAJA
Jurnal Penelitian Tanaman Industri Vol 5, No 4 (2000): Maret, 2000
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v5n4.2000.119-122

Abstract

Rearing of Helopeltis antonii Sign (Hemiptera; Miridae) on cucumberfruit and cashew shootHelopeltis antonii is well known as a major pest of cashew, cacao and tea plantations A suficient number of the insect is frequently needed for esearch purposes. Rearing of // antonii on cucumber fruit was conducted from October 1997 to May 1998. Under laboratory condition. total eggs layed were 3.2 per female per day, while female longivity was 18.9 days. Egg period was 6.1 days and the total hatched was 93.5 percent. The egg and the irst unlil the ifth instar nymph periods were 6.1; 2.3; 2.0; 1.8; 1.9 and 3.2 days espectively. The adults emerged from earing of 10, 20 and 30 newly hatched nymph were 7. 13. and 17 insects or 71.3; 65.0, and 58.0 percent respectively. Eggs and nymph periods on cashew shoot almost the same as on cucumber fruit. The hatched eggs on cutted cashew shoot was 12 percent, while on the shoot of cashew seedlings was 89.0 percent This study indicated that cucumber fruit is very suitable and easier as well as more economical for mass rearing of // antonii.
PARASITASI Aphanomerus sp. PADA WERENG PUCUK JAMBU MENTE Sanurus indecora JACOBI I GUSTI NYOMAN RAI PURNAYASA
Jurnal Penelitian Tanaman Industri Vol 9, No 1 (2003): Maret, 2003
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v9n1.2003.1-3

Abstract

Penelitian lenlang pcranan parasitoid Aphanomerus sp. (Platygasleridac. Hymenoplera) terhadap telur wcreng pucuk jambu mente Sanurus indecora Jacobi telah dilaksanakan di Desa I.ckok Rangan, Kecamatan Kayangan, Kabupaten Lombok Barat, Propinsi Nusa Tcnggara Barat, pada bulan Agustus sampai dengan bulan Oktobcr 2001. Tujuan penelitian adalah untuk mcngidenliikasi parasitoid yang keluar dari telur ,S' indecora. evaluasi pcranan parasitoid tersebut terhadap kelompok telur S indecora di lapangan dan terhadap telur yang belum tcrparasit di laboratorium Lima contoh lanaman dipilih untuk mengumpulkan kelompok telur. masing-masing 60 kelompok telur liap tanaman, sedangkan untuk parasilasinya di laboratorium digunakan 10 kelompok telur 2 ulangan dengan total telur setiap ulangan sebanyak 704 butir dan 876 butir Hasil pengamatan menunjukkan bahwa parasitoid tersebut berasal dari genus Aphanomerus dan tingkat parasitasi Aphanomerus sp terhadap kelompok S. indecora di lapangan rata-rata 93.2%, sedangkan terhadap telumya di laboratorium mencapai 83% dan 77.2%.Kata kunci : Sanurus indecora. Aphanomerus sp.. Anacardium occidentale. parasitoid lelur ABSTRACTParasitoid of Aphonomcrus sp. on the insect pest of cashew leaves Sanurus indecora JacobiShoot sucking insect research on the parasitoid of Aphanomerus sp. (Platygastcridae, Hymenoplera) on Ihe eggs of insect pesl of cashew plant Sanurus indecora Jacobi was conducted in Lekok Rangan Village, Kayangan Subdistrict, lombok Barat Distict, West Nusa Tcnggara Province, in August lo October 2001 Ihe objective of the research were to identity (he parxsitoid mat came ou( from the eggs of S. indecora, to evaluate he role of Ore parasitoid on the eggs mass of S. indecora in the field and on (he eggs in (he lab (hat had not been parasitized. Five sample plants chosen to collect the eggs mass each plant 60 eggs mass While for the parasitized in (he lab used 10 eggs mass wi(h (he (o(al 704 eggs and 876 eggs. The results of (he research mdicaled (hat the parasitoid came from genus Aphanomerus, and the level of parasitized of Aphanomerus sp. on Sanurus indecora was 93 2% al the average, while on its eggs in the lab was 83% and 77 2%.Keywords Sanurus indecora, Aphanomerus sp. Anacardium occidentale. egg parasitoid
PENGARUH PEMUPUKAN TERHADAP PRODUKTIVITAS DAN TITIK IMPAS USAHATANI JAHE PUTIH BESAR (JPB) PANEN MUDA DI SUMEDANG / Fertilization Effect on Productivity and Break-Event Point of Young Big White Ginger Farming System in Sumedang Ermiati, Ermiati
Jurnal Penelitian Tanaman Industri Vol 22, No 4 (2016): Desember, 2016
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v22n4.2016.197-207

Abstract

The study aimed to determine the effect of fertilizer NPK on the productivity, break event point and farmer’s income from young big white gingger (YBWG) (harvested at 6 months old) productivity. The study was conducted at Ganjarresik, Wado, Sumedang, West Java (701-1000 m asl) in April 2016, by use all of farmer which cultivate YBWG in Cakrabuana hill side as respondent. The farm productivity was measured based on output per unit area while the break event point (BEP) determined by BEP production and BEP prices. The analysis showed that productivity of farming system YBWG harvested at NPK 15:15:15 was 10.065 kg/ harvest/year was lower than BEP production = 12.762 kg/harvest/year, ginger price at harvesting time in location was also still lower than BEP price = Rp 2.155/kg, there fore, farming system was deficit Rp 4,584.900/harvest/year. Productivity of farming system YBWG harvested treatment NPK 16;16;16 was 32% higher than productivity YBWG from NPK 15:15:15 treatment, with the same price, there fore, farming system of YBWG harvested was still deficit but, it was relatively small (Rp 360.000,-/harvest/ha) only 8% from NPK 15:15:15 treatment deficit. Based on productivity and price at harvesting time, indicated that farming system harvested YBWG donot yet given profit. Beside, fertlizer price factor determined BEP and income of YBWG farming in Sumedang district.Keywords: Zingiber officinale Rosc, fertilization, productivity, young harvesting, break event point and income AbstrakPenelitian bertujuan untuk mengetahui pengaruh pemupukan NPK terhadap produktivitas, titik impas dan pendapatan usahatani JPB panen muda (umur 6 bulan). Penelitian dilakukan di Ganjarresik,Wado, Sumedang (701 – 1000 m dpl), April 2016 dengan responden seluruh petani yang melakukan usahatani JPB panen muda di lereng bukit Cakrabuana. Produktivitas usahatani dihitung berdasarkan produksi per satuan luas, sedangkan titik impas menggunakan indikator BEP produksi dan BEP harga. Hasil analisis menunjukkan produktivitas usahatani JPB panen muda yang menerapkan NPK 15:15:15, sebanyak 10.065 kg/panen/ha masih di bawah BEP produksi = 12.762 kg/panen/ha, demikian juga harga yang berlaku di lokasi penelitian (Rp 1.700,-/kg) masih di bawah BEP harga = Rp 2.155,-/kg, sehingga usahatani rugi sebesar Rp 4.584.900,-/panen/ha. Adapun produktivitas usahatani JPB panen muda yang menerapkan NPK 16:16:16, 32% lebih tinggi dari produktivitas JPB yang menerapkan NPK 15:15:15 dengan harga yang sama tapi kerugian relatif lebih kecil (Rp 360.000/panen/ha atau 8%) dari total kerugian yang menerapkan NPK 15:15:15. Berdasarkan produktivitas dan harga yang berlaku di lokasi penelitian, mencerminkan bahwa usahatani JPB panen muda belum memberikan manfaat finansial bagi petani. Selain pemupukan, faktor harga sangat menentukan BEP dan pendapatan usahatani JPB panen muda di Kabupaten Sumedang.Kata kunci: Zingiber officinale Rosc, pemupukan, produktivitas, panen muda, titik impas dan pendapatan
PENGARUH PUPUK MAJEMUK TERHADAP PRODUKSI DAN MUTU TEMBAKAU VIRGINIA / Effect of Compound Fertilizer on Yield and Quality of Virginia Tobacco Djajadi Djajadi; Sulis Nur Hidayati; Roni Syaputra
Jurnal Penelitian Tanaman Industri Vol 22, No 2 (2016): Juni, 2016
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/littri.v22n2.2016.91-98

Abstract

Tobacco Generally farmers in Lombok apply single fertilizer of ZA or Urea (as a source of N), and SP36 (as source of P), without combining with K and Mg fertilizers. The fertilizers are added more than twice with unappropriates doses. Application of compound fertilizer might increase growth, yield and quality of Virginia fc tobacco at Central Lombok, West Nusa Tenggara Province, because the fertilizer consists of NPK macro nutrients which have important role for tobacco. The experiment was carried out at Kopang Rembiga village, Kopang District in 2014. The objective to was identify the effect of NPKMg compound fertilizer on growth, yield and quality of Virginia tobacco. Split Plot Design with three replicates was used to arrange treatments. Three varieties of Virginia tobacco (Coker 176, Coker 319 and NC 297) were set as main plots, and three rates of NPKMg fertilizer (60, 80 and 100 kg N/ha) were arranged as sub plots. Results showed that increasing of NPKMg fertilizer up to 100 kg N/ha increased growth, yield and quality of three varieties of Virginia tobacco. Addition of 100 kg N/ha NPKMg (100 kg N+ 60 kg P2O5 + 133 kg K2O + 13.34 kg MgO per hectare) gave the highest values of grade index and crop index of three varieties, thus the fertilizer could be recommended for Virginia tobacco in Lombok.
PENGARUH JARAK TANAM TERHADAP JUMLAH MATA TUNAS PADA BEBERAPA KLON KAPUK SAHID, MOCH.; BUADI, BUADI; FACHRUDIN, O. M.Y.
Jurnal Penelitian Tanaman Industri Vol 6, No 1 (2000): Juni, 2000
Publisher : Pusat Penelitian dan Pengembangan Perkebunan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jlittri.v6n1.2000.14-17

Abstract

Effect of plant spacing on the number of buds of capok clonesThe experiment was conducted at Muktiharjo Experimental Farm. Pati from December 1991 to December 1993. The experiment was arranged factorially in a split plot design with three replications. The main plot was plant spacing, i.e. 2 m x I m and 2 m x 2 m, while the sub plot was clones (source of buds), namely MH I. Mil II. logo B, (lanang 36 x Siam) x Congo, (Congo 2 x Lanang). (SS 29 x Congo), (Jepara x Congo 2), and (P. Gudang x Lanang) x Congo. Plot size was 20 m x 4 m The size of planting hole was 0 6 m x 0 6 m x 0.6 m. one plant per hole. Canle manure mixed with soil was applied at planting lime Results showed that capok with plant spacing of 2 m x I m produced higher number of active buds per ha ( 147 625 buds) than that with plant spacing of 2 m x 2 m (79 661 buds). However, ihe first plant spacing produced smaller diameter (34.47 mm) than the second one (42.53 mm) The highest number of active buds was produced by the clone SS 29 x C, i.e. 123 959.33 buds per ha or 33.33 buds per plant

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