Djoko Purnomo
Program Studi Agroteknologi, Fakultas Pertanian, Universitas Sebelas Maret

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ANALISIS TANAH UNTUK REKOMENDASI PEMUPUKAN PADA BUDIDAYA JAGUNG, PADI DAN KETELA POHON Bagus Sri Mulyanto; Supriyadi Supriyadi; Djoko Purnomo
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 2 (2015): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.022 KB) | DOI: 10.20961/carakatani.v30i2.11924

Abstract

The application of fertilization and giving organic matter of different causes differences in soil fertility status, with the availability of macro nutrients on a farm, then to know the action proper fertilization. The purpose of this study is to determine the dose fertilization fertility status of the local potential. The research was conducted using a survey method, ie by observing and sampling the soil directly in the field, followed by laboratory analysis to determine the chemical content of the soil. The results showed the level of soil fertility in Wonogiri low fertilizer needs are different in each district in Wonogiri. Areas with low nutrient availability will provide a high dose of fertilizer, and conversely a low fertilization results indicate the availability of nutrient elements in the soil are sufficient for plant growth, although it should still be nurtured to backup next season.
PENGGUNAAN SARI UMBI BAWANG MERAH DALAM PEMBIBITAN PAPAYA Faryska Nur Ichsan; Djoko Purnomo; Linajanti Darsono
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 2 (2015): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.849 KB) | DOI: 10.20961/carakatani.v30i2.11888

Abstract

Community awareness in healthy life is increasing by consuming nutritious food through such as fruit. So it is necessary for increasing the availability of fruit either by cultivation expansion or technology development. The production life of papaya crop approximately three years only, so that replanting takes relatively fast. But there is some limitations mainly the availability of suitable seedling (age and uniformity). For improving the availability of suitable papaya seedling can be used gibberellin as growth regulator substance. But gibberellin in pure analysis limitations are expensive, not always available, and high technology in application.  The aim of the research was to test of shallot juice (1 kg of shallot bulbs destroyed by juicer) as gibberellin substitute for improving papaya seedling.  The experiment was conducted at terrace house, consist of percentage and speed of germination and growth of seedling observation after seed soaked 2 hours in shallot juice several concentration treatment. Test of the germination percentage and speed conducted for 10 seeds on pastur paper in petridish (11.5 diameter) as germination media. The experiment for growth seedling was arranged in randomized completely design which the treatments are: seed soaked in water,  soaked in 5, 10, 15, dan 20 ml l-1 shallot juice concentration, and soaked in gibberellin 10 ppm. Each of the experiment unit consist of 8 seedlings which planted on trypot (composite of plastic pots by size 5.5x5.5 cm at surface, 5.5 cm height, and 2,5x2,5 cm at the base, each of traypot consist of 32 pots). So in each of tray pot there are 8 experimental units, each of experimental unit repliclated 3 times. Traypot and petridish at terrace house shaded by woven plastic 65%, by size 2.5x1.5x2.0 m (length, width, and height). Yield of the research showed that shallot juice potential as gibberellin replacement in papaya nursery. Response of papaya seed (percentage and speed of germination) and seedling (length of root, stem diameter, number of leafs, leaf area, and weight of biomass) to 15 ml l-1 shallot juice equal with gibberellin 10 ppm.
RADIATION FOR GARLIC PLANLETS ON ACLIMATIZATION PHASE Dara Cipta Andini; Eddy Tri Haryanto; Djoko Purnomo
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.444 KB) | DOI: 10.20961/carakatani.v30i1.11842

Abstract

Garlic is one of the important horticultural crops in Indonesia so that the needs increas from year to year. In Indonesia plant material (seed) for cultivating garlic always uses comsumption bulb. The impact of that technique in a long time that the yield gradually decrease by virus infection from preliminary crop. The aim of the research was to find out of seed plant material which virus free by in vitro propagation technology. Acclimatitation is one of succesfuly determination in invitro propagation. Research by the experiment was to study the ability of New Tawangmangu, Gunung Kidul, and Bali garlic varieties on acclimatitation in several light intensity (by paranet shading). The results showed that the totipotency of the garlic varieties was high but in acclimatitation by the shading technique just survived two weeks only. The failure of acclimatitation was range of temperature 12-37°C. 
KAJIAN EKOLOGI, KEANEKARAGAMAN JENIS DAN POTENSI POHON DI PEKARANGAN (STUDI KASUS DI DESA KEBAK, JUMANTONO, KARANGANYAR) Arief Susanto; Endang Setya Muliawati; Djoko Purnomo
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (260.994 KB) | DOI: 10.20961/carakatani.v30i1.11846

Abstract

Homegarden is one alternative that multipurpose agricultural land to cope with reduced land resources. This study aimed to determine the characteristics of the ecology, species diversity and potential of trees in the homegarden that is useful in further development. The research had been conducted in June to August 2011 in the Kebak Village, Jumantono District, Karanganyar Regency with a altitude of 330 meters above sea level and soil type alvisol. This experiment used survey methods with observation unit is divided into three categories based on the size of the homegarden: narrow (<700 m2), medium (700-900 m2) and large (> 900 m2). Observed variables include three aspects: biological variables (type and number of trees, tree height, trunk diameter and canopy area), physical variables (analysis of soil, microclimate homegarden, macroclimate and physiographic land) and analysis of the vegetation (density, frequency, dominance, relative density, relative frequency, relative dominance, importance value index and the index of species diversity). Kebak village had been 40 species of trees are divided into fruit trees, timber, vegetable producers, growers and others. The results showed indicate that the type of fruit tree had the largest of 20 species by the reached 142 tree to rambutan tree. Spacious homegarden area had the highest type and number of trees as well as the highest species diversity index. 
PENGGUNAAN PUPUK CAIR EKSTRAK LIMBAH RUMAH TANGGA DALAM BUDIDAYA ORGANIK KEDELAI PADA SISTEM AGROFORESTRI Siti Mardhikasari; Djoko Purnomo; Trijono Djoko Sulistyo
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (257.486 KB) | DOI: 10.20961/carakatani.v30i1.11830

Abstract

Organic cultivation in egroforestry system by biofertilizer potentialy conducted for soybean.  Soybean cultivation in agroforestry system there are several limitations but it have to effort since the area of ideal land decreasing year by year.  The aim of the research by experiment method is increasing yield of soybean by organic cultivation in agrofrestry system either quality or quantity.  The experiment design is randomized block design (RBD) with two factor trearments.  The first factor are kinds of variety (Grobogan and Local) as mainplot and the second one are biofertilizer duration (no biofertilizer as control, 4, 5, 6, 7 weeks applies ones a week).  So there are 10 combination treatments and replicated three times for each of them.
EVALUASI SIFAT KIMIA TANAH DAN HASIL KEDELAI PADA SISTEM AGROFORESTRI BERBASIS POHON JATI Deni Prasetiyo; Djoko Purnomo; Supriyadi Supriyadi
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.838 KB) | DOI: 10.20961/carakatani.v30i1.11838

Abstract

Soybean is one of the most important food commodities in Indonesia and also it has high value. The needs continue to increase each year, but not offset by increased production become an issue that must be addressed. One attempt to increase soybean production is through the cultivation in agroforestry systems through improving the quality of soil fertility. This research aims to study the effect of various doses of litter teak and NPK fertilizer on chemical soil fertility and the potential of soybeans yield in agroforestry systems based teak crops. Experiments using a Randomized Complete Block Design (RCBD) with two factors, namely litter teak doses (0 ton ha-1, 2.500 ton ha-1, 5.000 ton ha-1, 7.500 ton ha-1) and doses of NPK fertilizer (60-60-60 and 60-120-60) on Grobogan soybean varieties. The variables measured were pH, organic matter content, N-total soil, cation exchange capacity (CEC), plant tissue of N, P-total soil, and component production. Data analysis using analysis of variance F-test based on the level of 5% and significantly different variables followed by Tukey’s method level of 5%. The results showed that combination treatment with various doses of teak litter NPK fertilizers can increase total nitrogen content of the soil with the highest yield of 1.69% on S1D2 treatment, but to organic matter, CEC, pH, and total soil P not significant effect. Component of soybean varieties of the highest Grobogan of 0.83 tons ha-1 in the treatment S1D1. The result was still below the average of the national soybean production.
BUDIDAYA CABAI RAWIT SISTEM HIDROPONIK SUBSTRAT DENGAN VARIASI MEDIA DAN NUTRISI Djoko Purnomo; Dwi Harjoko; Trijono Djoko Sulistyo
Caraka Tani: Journal of Sustainable Agriculture Vol 31, No 2 (2016): October
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (259.479 KB) | DOI: 10.20961/carakatani.v31i2.11996

Abstract

The study aimed to determine which substrate and nutrition that gives the best result in improving growth and yield of Capsicum frutescens. The study design using CRD (completely randomized design) with two factors, namely substrates (6 levels: charcoal husks, fractional tiles, fractional bricks, arenga fiber, beach sand, husk steamed) and nutrition (2 levels: standards, standards with NPK). The study was conducted October 2015 until March 2016 in screen house Faculty of Agriculture, Sebelas Maret University. Data were analyzed using analysis of variance and if significant difference continued with DMRT (Duncan Multiple Range Test) level of 5%. The results showed that the kinds of substrates significantly affect all variables of Capsicum frutescens (plant height, leaf number, branch number, total interest, diameter trunk, root length, root volume, fresh weight of plants, plant dry weight, fruit weight and number of fruit), and the addition of NPK nutrition significantly affect variable leaf number, branch number, and fresh weight of plants. 
BUDIDAYA ORGANIK KEDELAI PADA SISTEM AGROFORESTRI MENGGUNAKAN PUPUK HAYATI Steviana Baity; Djoko Purnomo; Trijono Djoko Sulistyo
Caraka Tani: Journal of Sustainable Agriculture Vol 30, No 1 (2015): March
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (255.345 KB) | DOI: 10.20961/carakatani.v30i1.11840

Abstract

Organic cultivation in egroforestry system by biofertilizer potentialy conducted for soybean.  Soybean cultivation in agroforestry system there are several limitations but it have to effort since the area of ideal land decreasing year by year.  The aim of the research by experiment method is increasing yield of soybean by organic cultivation in agrofrestry system either quality or quantity.  The experiment design is randomized block design (RBD) with two factor trearments.  The first factor are kinds of variety (Grobogan and Local) as mainplot and the second one are biofertilizer duration (no biofertilizer as control, 4, 5, 6, 7 weeks applies ones a week).  So there are 10 combination treatments and replicated three times for each of them.
Diseminasi Budidaya Padi Gogo, Jagung, dan Kacang Tanah Sistem Agroforestri Berbasis Tegakan Sengon di KPH Blitar Djoko Purnomo; MTh Sri Budiastuti; Amalia Tetrani Sakya; Anang Susanto
PRIMA: Journal of Community Empowering and Services Vol 5, No 1 (2021): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prima.v5i1.43693

Abstract

Tujuan kegiatan pengabdian adalah memberikan informasi teknologi budidaya padi gogo, jagung dan kacang tanah di bawah tegakan sengon, khususnya dalam perolehan cahaya, sehingga tanaman di bawah tegakan dapat tumbuh dan memberikan hasil yang optimal. Hal ini dilakukan karena selama ini hasil yang diperoleh tanaman di bawah tegakan belum maksimal. Pengabdian diselenggarakan mulai bulan Oktober sampai Desember 2018 di desa Maliran, Kecamatan Ponggok, Kabupaten Blitar dengan melibatkan pihak perhutani dan masyarakat di sekitar hutan (petani agroforestri). Kegiatan pengabdian meliputi pembuatan demplot, penyuluhan dan diskusi (focus group discussion/FGD) yang  dilaksanakan di kantor KBH Blitar dengan melibatkan pihak Perhutani  dan petani. Pembuatan demplot dilakukan dengan penanaman jagung, padi gogo dan kacang tanah di bawah tegakan sengon umur 3, 4, dan 5 tahun. Hasil FGD diperoleh kesepakatan bahwa diperlukan pemangkasan kanopi pohon bagian bawah sepertiga dari tinggi kanopi. Hal ini diperlukan sebagai upaya menyediakan cahaya bagi tanaman di bawah tegakan saat sengon mencapai umur di atas 3 tahun, sehingga tanaman di bawah tegakan dapat tumbuh dan memberikan hasil yang optimal. Dari hasil demplot menunjukkan padi gogo dan jagung yang ditanam pada tegakan sengon umur lebih dari 3 tahun tanpa pemangkasan tidak memberikan hasil, tetapi kacang tanah masih dapat menghasilkan. Setelah terlibat langsung dalam kegiatan demplot, petani menyatakan bahwa pemangkasan kanopi memberikan wawasan baru dalam melakukan budidaya di bawah tegakan pohon. Selain itu, juga diperoleh informasi bahwa seresah sengon dapat digunakan sebagai pupuk hijau, dan tanaman kacang-kacangan (legum) sangat potensial sebagai tanaman sela, serta tanaman dibawah tegakan dapat digunakan sebagai alternatif sumber pangan organik.