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All Journal Jurnal Pendidikan Dasar AGRIKA JTSL (Jurnal Tanah dan Sumberdaya Lahan) Jurnal Ilmu-Ilmu Pertanian Indonesia Journal of Degraded and Mining Lands Management Jurnal Pembangunan dan Alam Lestari AGRIVITA, Journal of Agricultural Science Fakultas Pertanian AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Ilmiah Pertanian Jurnal AGROSAINS dan TEKNOLOGI AGRISAINTIFIKA Jurnal Ilmu-ilmu Pertanian Jurnal SEPA (Social Economic and Agribusiness Journal) Jurnal Agrotek Tropika AGROMIX BUANA SAINS JURNAL BUDIDAYA PERTANIAN Jurnal Pengabdian Masyarakat Bumi Raflesia ZIRAA'AH MAJALAH ILMIAH PERTANIAN Jurnal Abdi Insani Budapest International Research and Critics Institute-Journal (BIRCI-Journal): Humanities and Social Sciences Jurnal Pengabdian Masyarakat Indonesia Prima Abdika: Jurnal Pengabdian Masyarakat JAPI: Jurnal Akses Pengabdian Indonesia Valid Jurnal Pengabdian
Widowati
Agrotechnology Study Program, Faculty Of Agriculture, Tribhuwana Tungga Dewi University, Jl. Telaga Warna, Tlogomas Malang 65144
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PEMANFAATAN BIOCHAR DAN PUPUK KALIUM PADA TANAMAN TERUNG UNGU (Solanum melongena L.) VARIETAS MUSTANG DI VERTISOL Junaitri, Marius; Widowati, Widowati; Karamina, Hidayati
Fakultas Pertanian Vol 6, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

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Abstract

Cultivation on a vertisol has a pretty good potential to be developed because of the high nutrient levels. Apart from its prospects, vertisol had higher clay content problems and the onset of the potassium fixation in dry conditions. Therefore required proper management on a vertisol. Biochar is charcoal material that serves as a biological repairers can improve the physical properties of soils, soil chemistry, biology. The study aims to determine the combination of biochar fertilizer and KCl towards growth and yield of Eggplant Purple on a vertisol. This study used a randomized design group (RAK) factorial in repeated 3 times. Factor I Biochar: control, 15 ton ha-1, 30-ton ha-1 and factor II: control of potassium, KCl 50 kg ha-1, 100 kg KCl ha-1, KCl 150 kg ha-1. The research results showed that biochar 15 ton ha-1 without potassium fertilizer plus high yield plants, and brangkasan best. Biochar 30 ton ha-1 plus KCl 50 kg ha-1 produces the most fruits. Budidaya tanaman pada vertisol memiliki potensi yang cukup baik untuk dikembangkan karena kadar hara yang cukup tinggi. Terlepas dari prospeknya, vertisol memiliki permasalahan kandungan liat tinggi dan terjadinya fiksasi kalium pada kondisi kering. Oleh karena itu diperlukan pengelolaan yang tepat pada vertisol. Biochar merupakan arang hayati yang berfungsi sebagai bahan pembenah tanah dapat memperbaiki sifat fisik, kimia, biologi tanah. Penelitian bertujuan untuk menentukan kombinasi biochar dan pupuk KCl terhadap pertumbuhan dan hasil terung ungu pada vertisol. Penelitian ini Menggunakan rancangan acak kelompok (RAK) faktorial di ulang 3 kali. Faktor I Biochar: kontrol, 15 ton ha-1, 30 ton ha-1 dan faktor II kalium: kontrol, KCl 50 kg ha-1, KCl 100 kg ha-1, KCl 150 kg ha-1. Hasil penelitian menunjukan bahwa biochar 15 ton ha-1 tanpa ditambah pupuk kalium menghasilkan tinggi tanaman, dan brangkasan terbaik. Biochar 30 ton ha-1 yang ditambah KCl 50 kg ha-1 menghasilkan buah terbanyak.
UJI PUPUK ORGANIK PADA TANAMAN SAWI (Brassica Juncea L) Sobang, Adrianus Janga; Widowati, Widowati; Sutoyo, Sutoyo
Fakultas Pertanian Vol 6, No 2 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

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Abstract

Mustard plants (Brassica juncea L.) is one of the leaf vegetable horticulture commodities that is popular with the public. The problem faced today is the decline in the production of mustard plants that do not meet national productivity standards, which is between 9.44 tons ha-1. The study was conducted in April-May 2017, in Bawang Hamlet, Tunggulwulung Village, Malang City, East Java Province. This study used a Randomized Block Design (RBD), with 7 treatments and repeated 4 times, so that there were 28 experimental units and sampling as many as 8 looping samples, so that all 224 plants. Treatment factors consisted of: P0: control, P1: Urea fertilizer 200 kg / ha = 1.25 g / polybag, P2: Kascing fertilizer 10 tons / ha = 125 g / polybag, P3 : Cage fertilizer 10 tons / ha = 125 g / polybag, P4: Bokashi fertilizer 10 tons / ha = 125 g / polybag, P5: Petroganic fertilizer 10 tons / ha = 125 g / polybag and P6: Compost fertilizer 10 tons / ha = 125 g / polybag. The variables observed included: plant height, number of leaves, plant wet weight, plant dry weight and mustard production. Data analysis of the research results was tested using Analysis of variance (ANOVA), if there was a real influence then continued with the BNT test (the Smallest Real Difference) at 5% level. The results showed that: Treatment of Petroganic fertilizer significantly affected the growth of plant height and number of leaves aged 21-42 HST. The treatment of Petroganic fertilizer has an effect on mustard production as much as (262.58 g / plant), but not significantly different from fertilizer bocation (253.08 g / plant). Tanaman sawi (Brassica juncea L.) merupakan salah satu komoditas hortikultura sayuran daun yang banyak digemari oleh masyarakat. Masalah yang dihadapi saat ini adalah menurunnya hasil produktifitas tanaman sawi yang tidak memenuhi standar produksi nasional yaitu antara 9,44 ton ha-1. Penelitian dilaksanakan di pada bulan April-Mei 2017, di Dusun Bawang, Kelurahan Tunggulwulung, Kota Malang, Propinsi Jawa Timur. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK), dengan 7 perlakuan dan diulang 4 kali, sehingga terdapat 28 unit percobaan dan pengambilan sampel sebanyak 8 sampel perulangan, sehingga keseluruhan 224 tanaman.Faktor perlakuan terdiri dari :P0 : control, P1 : pupuk Urea 200 kg/ha = 1,25 g/polybag, P2 : pupuk Kascing 10 ton/ha = 125 g/polybag, P3 : pupuk Kandang 10 ton/ha = 125 g/polybag, P4 : pupuk Bokashi 10 ton/ha = 125 g/polybag, P5 : pupuk Petroganik 10 ton/ha = 125 g/polybag dan P6 : pupuk Kompos 10 ton/ha = 125 g/polybag. Variabel yang diamati meliputi :tinggi tanaman, jumlah daun, berat basah tanaman, berat kering tanaman dan produksi sawi. Analisis data hasil penelitian diuji menggunakan Analisis of varians (Anova), apabila terdapat pengaruh nyata maka dilanjutkan dengan uji BNT (Beda Nyata Terkecil) taraf 5%. Hasil penelitian diperoleh bahwa : Perlakuan pupuk Petroganik berpengaruh nyata terhadap pertumbuhan tinggi tanaman dan jumlah daun umur 21-42 HST. Perlakuan pupuk Petroganik berpengaruh terhadap produksi sawi sebesar (262,58 g/tanaman), namun tidak berbeda nyata dengan pupuk bokasi (253,08 g/tanaman).
PENGGUNAAN BAHAN PEMBENAH TANAH DAN VARIETAS KEDELAI PADA PERTUMBUHAN KEDELAI (GLYCINE MAX) Samsuriadi, Samsuriadi; Adisarwanto, Titis; Widowati, Widowati
Fakultas Pertanian Vol 5, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

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Abstract

Agricultural land is one of land production that must be considered. Of land use which intensive can be lowered the quality of the soil. Biochar is charcoal is rich in carbon, have the ability to repair the properties of ground fine physical, chemical or biology. This study aims to learning the influence of material revamping land on the growth of the soybean plant. Research in implementing in the Bawang village the Tunggul Wulung urban village Malang city East Java. Experiment use polybag, who placed on in glass houses. The land used the land in take from the Gadaing Kulon village Dau districts Malang city East Java, research arranged in the design random group factorials. Factors I are varieties soybean in 2 the economic situation that is Willis and Anjasmoro and factors II is the pembenah land consists of 4 level, namely : 1) without its revamping 2 ) biochar 3 ) compost 4 ) biochar and compost, research repeat 3 times so that there was 8 combination treatment. Lahan pertanian merupakan salah satu lahan produksi yang harus diperhatikan. Penggunaan lahan yang intensif dapat menurunkan kualitas tanah. Biochar adalah arang yang kaya akan karbon, mempunyai kemampuan untuk memperbaiki sifat-sifat tanah baik fisik, kimia maupun biologi. Penelitian ini bertujuan untuk mempelajari pengaruh bahan pembenah tanah terhadap pertumbuhan tanaman kedelai. Penelitian di laksanakan di Desa Bawang Kelurahan Tunggul Wulung Kota Malang Jawa Timur. Percobaan mengunakan polibag, yang diletakan di dalam rumah kaca. Tanah yang di gunakan yaitu tanah yang di ambil dari Desa Gading Kulon Kecamatan Dau Kabupaten Malang Jawa Timur, dengan mengunakan Rancangan Acak kelompok Faktorial. Faktor I adalah varietas kedelai dalam 2 taraf yaitu Willis dan Anjasmoro dan faktor II adalah bahan pembenah tanah yang terdiri dari 4 level, yaitu : 1) tanpa bahan pembenah 2) biochar 3) kompos 4) biochar dan kompos, penelitian di ulang 3 kali sehingga ada 8 kombinasi perlakuan.
STUDI KUALITAS PASCAPANEN TERUNG UNGU (Solanum melongena L.) HASIL PENERAPAN BIOCHAR SEBAGAI ALTERNATIF KALIUM PADA TANAH VERTISOL Anci, Ledisa; Widowati, Widowati; Fikrinda, Wahyu
Fakultas Pertanian Vol 6, No 1 (2018)
Publisher : Universitas Tribhuwana Tunggadewi

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The purpose of this study was to examine the combination of biochar dosage and potassium fertilizer on post-harvest quality of purple eggplant in vertisol soil. This research using Randomized Block Design (RAK) was arranged factorially by using two factors: Factor I dosage of biochar, consisting of 3 levels: B0 = 0 ton / ha (control), B1 = 15 ton / ha (250 g / tan) and B2 = 30 tons / ha (500 g / tan). The second factor of potassium dose, consisting of 4 levels: K0 = 0 kg / ha (control) K1 = 50 kg / ha (0.8 g / tan), K2 = 100 kg / ha (1.6 g / tan) and K3 = 150 kg / ha (2.4 g / tan). Based on the results and discussion, it can be concluded that there is interaction between the dosage of biochar and potassium at 4 MSP on the shrinkage of fruit weight, fruit hardness, total titrated acids content, and vitamin C. At 4 MSP the use of biochar dose and the best potassium dose was found in the treatment B1K0, B1K2 and B2K2 which can be seen on fruit hardness parameter (6,77), vitamin C content (28,16 dan 23,47), total titrate acid content (0,18 and 0,22), and weight loss fruit (18,16). Tujuan penelitian ini untuk mengkaji kombinasi dosis biochar dan pupuk kalium terhadap kualitas pascapanen terung ungu di tanah vertisol. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) disusun secara faktorial dengan menggunakan 2 faktor yaitu : Faktor Idosis biochar,terdiri atas 3 taraf: B0 = 0 ton/ha (kontrol), B1 = 15 ton/ha (250 g/tan) dan B2 = 30 ton/ha (500 g/tan). Faktor IIdosis Kalium, terdiri atas 4 taraf: K0 = 0 kg/ha (kontrol) K1 = 50 kg/ha (0,8 g/tan), K2 = 100 kg/ha(1,6 g/tan) dan K3 =150 kg/ha (2,4 g/tan). Berdasarkan hasil dan pembahasan, dapat disimpulkan bahwa Terdapat interaksi antara dosis biochar dan kalium pada 4 MSP terhadap susut bobot buah, kekerasan buah, kandungan asam tertitrasi total buah, dan kandungan vitamin C. Pada 4 MSP penggunaan dosis biochar dan dosis kalium terbaik didapati pada perlakuan B1K0, B1K2, dan B2K2 yang dapat dilihat pada parameter kekerasan buah (6,77), kandungan vitamin C (28,16 dan 23,47), kandungan asam tertitrasi total buah (0,18 dan 0,22 ), serta susut bobot buah (18,16).
EFEK RESIDU JENIS BIOCHAR DAN PEMBERIAN PUPUK ANORGANIK PADA PERTUMBUHAN DAN HASIL JAGUNG (ZEA MAYS L). MUSIM TANAM KEDUA Susanto, Susanto; Widowati, Widowati; Hapsari, Ricky Indri
Fakultas Pertanian Vol 5, No 1 (2017)
Publisher : Universitas Tribhuwana Tunggadewi

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Abstract

Land is the main medium where the growth of plants. Arable land can increase crop productivity high while the soil is degraded low crop productivity. The study aims to assess the combined effect of residual type of biochar and fertilizer N and N-K on the growth and yield of corn in degraded soils. Conducted from March to June 2016 in Dusun Bawang Tunggulwulung District of Malang. Experiments using polybags and laid on the ground. Land used is soil degradation which was taken in the village Jatikerto Kromengan District of Malang. Experiments using a randomized block design factorial 2 factors: Factor I kind of biochar residue consists of three kinds of biochar namely, the residue (wood biochar, biochar biochar husk and coconut shell). Factor II time and type of fertilizer N and N-K, consisting of 6 treatments, namely, fertilizer N and N-K in the third week, fourth and fifth. There are 18 combinations of treatments were repeated 3 consists of 5 plant samples. The results of the study, showed that applying N fertilizer-K in the third week produce stem dry weight, total dry weight of the plant top. N-K Award fourth week resulted in total plant dry weight of 5.21 g / plant. Lowest result is application of fertilizer N and N-K to the dry weight of the leaves in the fifth week of 1.52 g / plant and 1.67 g / plant. Tanah merupakan media utama tempat tumbuhnya tanaman. Tanah yang subur dapat meningkatkan produktivitas tanaman yang tinggi sedangkan tanah yang terdegradasi produktivitas tanaman rendah. Penelitian bertujuan untuk mengkaji pengaruh kombinasi residu jenis biochar dan pemberian pupuk N maupun N-K terhadap pertumbuhan dan hasil tanaman jagung pada tanah terdegradasi. Dilaksanakan pada bulan Maret sampai Juni 2016 di Dusun Bawang Kecamatan Tunggulwulung Kota Malang. Percobaan menggunakan polybag dan diletakkan dilapangan. Tanah yang digunakan yaitu tanah degradasi yang diambil di desa Jatikerto Kecamatan Kromengan Kabupaten Malang. Percobaan menggunakan Rancangan Acak Kelompok Faktorial 2 faktor, yaitu : Faktor I jenis residu biochar terdiri dari 3 macam biochar yakni, residu (biochar kayu, biochar sekam dan biochar tempurung kelapa muda). Faktor II waktu dan jenis pupuk N dan N-K, terdiri dari 6 perlakuan yaitu, pemupukan N maupun N-K pada minggu ketiga, keempat dan kelima. Terdapat 18 kombinasi perlakuan diulangi sebanyak 3 terdiri dari 5 sampel tanaman. Hasil penelitian, menunjukkan bahwa pemberian pupuk N-K pada minggu ketiga menghasilkan berat kering batang, berat kering total tanaman tertinggi. Pemberian N-K minggu keempat menghasilkan berat kering total tanaman 5,21 g/tanaman. Hasil terendah adalah pemberian pupuk N dan N-K terhadap berat kering daun pada minggu kelima 1,52 g/tanaman dan 1,67 g/tanaman.
RESIDU DOSIS BIOCHAR DAN PEWIWILAN TERHADAP PERTUMBUHAN DAN HASIL TANAMAN TOMAT (SOLANUM LYCOPERSICUM L.) PADA SIKLUS TANAM KEDUA Arson, Prudensius; Widowati, Widowati; Julianto, Reza Prakoso Dwi
Fakultas Pertanian Vol 7, No 3 (2019)
Publisher : Universitas Tribhuwana Tunggadewi

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Abstract

The tomato is one of the commodities that include multi-use Solanum family. Biochar is able to survive long in the soil so that it still gives a residual effect on the next planting cycle. This Study aims to study the influence of the dose residues of biochar and reticulturants on growth and yield of tomato plants in the second planting cycle. This study used a randomized design group (RAK) factorial, factor I is the Residual Dose Biochar: control (a D0), 250 g tan-1 (D1), 500 g tan-1 (D2), and factor II is Pewiwilan: no Pewiwilan (P0), Pewiwilan (P1). Research results indicate that the dose of biochar residues 500 g tan-1 and pewiwilan can increase the amount of fruit of 28,9% from 22.25 became 28.67 (pewiwilan) in tomato plants (solanum lycopersicum l.) in the land of Incieptisol. Tomat merupakan salah satu komoditi yang multi guna termasuk famili Solanum. Biochar mampu bertahan lama di dalam tanah sehingga masih memberi efek residu pada siklus tanam berikutnya. Penelitian ini bertujuan untuk mempelajari pengaruh residu pemberian dosis biochar dan pewiwilan terhadap pertumbuhan dan hasil tanaman tomat pada siklus tanam kedua. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) faktorial, faktor I adalah residu dosis biochar : kontrol (D0), 250 g tan-1 (D1), 500 g tan-1 (D2), dan faktor II adalah pewiwilan : tanpa pewiwilan (P0), pewiwilan (P1). Hasil penelitian menunjukkan bahwa residu biochar 500 g tan-1 dan pewiwilan dapat meningkatkan jumlah buah sebesar 28,8% dari 22,25 menjadi 28,67 (pewiwilan) pada tanaman tomat (solanum lycopersicum l.) di Incieptisol.
Residual effect of potassium fertilizer and biochar on growth and yield of maize in the second season Wid Widowati; A Astutik; Astri Sumiati; Wahyu Fikrinda
Journal of Degraded and Mining Lands Management Vol 4, No 4 (2017)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (90.9 KB) | DOI: 10.15243/jdmlm.2017.044.881

Abstract

Application of biochar can increase availability of plant nutrients and yield. A field experiment was conducted on anInceptisol with aim to determineresidual potassium fertilizer and biochar application on growth and yield of maize in the second season. A randomized block design was used with three replication. The treaments were residual application of potassium and biochar that consisted of biochar only (30 t/ha), and biochar plus several levels of potassium apllication (0, 50, 100, 150 and 200 kg/ha), included application of 200 kg/ha potassium without biochar. Basal fertilizersapplied in the first season were 90 kg N/ha and 100 kg P205, and in the second season was 90 kg N/ha. The results showed that residual biochar alone or combined with different levels of potassium application increased yield of maize. Residual biochar increased avalilabilty of N, P, K, Ca, and Na in the soil.
The use of biochar to reduce nitrogen and potassium leaching from soil cultivated with maize W Widowati; A Asnah; W H Utomo
Journal of Degraded and Mining Lands Management Vol 2, No 1 (2014)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (286.368 KB) | DOI: 10.15243/jdmlm.2014.021.211

Abstract

Nutrient leaching is often a problem especially in tropical areas with soil fertility constraints. This study aims to reveal the effect of biochars on leaching and uptake of nitrogen and potassium from degraded soils cultivated with maize. Each of three types of biochar originated from rice husk, wood, and coconut shell, was applied to the soil placed in PVC tube at four rates (0,15, 30, and 45 t/ha). Maize was then planted in each pot. All pots received urea (135 kg N/ha), SP 36 (36 kg P2O5/ha), and KCl (110 kg K2O/ha). Twelve treatments (three biochars and four application rates) were arranged in a factorial randomized block design with three replicates. Results of the study showed interaction effects of biochar materials and biochar rates on nitrate leaching (except on day 1 to 30) and potassium, N uptake, and plant growth. On day 1-30, leaching of nitrate and potassium was reduced by biochar application. The lowest nitrate leaching was observed at rate of 45 t /ha of wood biochar, while application of 45 t/ ha coconut shell biochar resulted in the highest K leaching. Beside, wood biochar resulted in a similar nitrate leaching with that of coconut shell biochars, but nitrate leaching increased with increasing rate of biochar chaff on 30-60 HST. All biochar materials yielded a similar potassium leaching at all rates. Application of 45 t /ha biochar husk resulted in the best maize growth.
The Analysis of the Heavy Metal Iron (Fe), Cadmium (Cd), Copper (Cu) Content In Crystal Guava (Psidium Guajava L.) and Soil at Batu Hidayati Karamina; Widowati Widowati; Tri Mudjoko
Indonesian Journal of Environment and Sustainable Development Vol 10, No 2 (2019)
Publisher : Graduate Program

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpal.2019.010.02.10

Abstract

Bumiaji region is well-known as it becomes the tourist destination area in Batu City. This area is largely covered by its constant (even below) 20oC temperature along the year in which makes it as the best place to plant horticultural plantation such as Crystal Guava. This plantation is done through careful treatment in applying both organic and inorganic fertilizer and the abundant dose of pesticide continually. These efforts, however, yield some drawbacks to the environment, especially for the soil itself. Thus, this study was aimed for discovering the amount of the heavy metal contained in the soil and Crystal Guava. This study used descriptive analytic method along with using Spectophotometer for testing the heavy metal. The elements of three heavy metal Fe, Cd, Cu in the soil concentration in 30 - 60 cm soil depth were higher than in 0 – 30 cm soil depth. The third content of heavy metals in the soil is included in the high category so that it is harmful to the environment and plants. The heavy metal content of Fe, Cd, Cu in the crystal varieties of guajava fruit in plants aged 5, 6 and 11 years has the results of heavy metal analysis that has exceeded the normal threshold of pollution guidelines.
INTRODUKSI TEKNOLOGI BIOCHAR UNTUK MEMPERBAIKI LAHAN KRITIS MILIK PETANI WILAYAH MAGERSARI DI KABUPATEN TUBAN, PROPINSI JAWA TIMUR Widowati Widowati; Agnes Quartina Pudjiastuti; Ana Arifatus Sa’diyah
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 26, No 3 (2020): JULI - SEPTEMBER
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v26i3.17625

Abstract

Upaya meningkatkan produksi dan produktivitas lahan pertanian saat ini bukan hal yang mudah karena ketersediaan lahan pertanian yang relatif tetap, bahkan cenderung berkurang karena berbagai faktor. Salah satu alternatif yang bisa dilakukan dalam jangka pendek adalah memperbaiki kesuburan lahan tandus yang selama ini digunakan masyarakat petani sebagai sumber mata pencahariannya. Tujuan dari program pengabdian kepada masyarakat bagi mitra petani adalah mengintroduksikan teknologi biochar untuk memperbaiki lahan kritis (tandus dan berbatu) dan mengevaluasi usahatan yang ada. Metode yang digunakan untuk mencapai tujuan tersebut adalah penyuluhan dan pelatihan pembuatan biochar (teknologi), pemberian bantuan alat pembuat biochar dan bibit tanaman, serta pendampingan kepada petani mitra di Desa Jetak, Kecamatan Montong, Kabupaten Tuban. Petani mulai memahami teknologi biochardan manfaatnya bagi usahatani di lahan kritis, menggunakan teknologi biochar, dan manajemen usahatani berbasis teknologi biochar. Petani telah sadar bahwa aplikasi biochar dapat menurunkan biaya usahatani karena dibuat dari limbah pertanian yang tersedia berlimpah. Alat produksi biochar relatif murah dan terjangkau bagi petani yang ingin memperbaiki kondisi lahannya yang kritis.Kata kunci: Biochar; Lahan Kritis; Teknologi Sederhana.AbstractEfforts to increase production and productivity of agricultural land at this time is not easy because the availability of agricultural land is relatively fixed, and even tends to decrease due to various factors. One alternative that can be done in the short term is to improve the fertility of the barren land that has been used by the farming community as a source of livelihood. The aim of the community service program for farmer partners is to introduce biochar technology to improve critical land (barren and rocky) and evaluate existing farming. The methods used to achieve these objectives are counseling and training in making biochar (technology), providing assisting in making biochar tools and plant seeds, as well as assistance to partner farmers in Jetak Village, Montong District, Tuban District. Farmers are beginning to understand biochar technology and its benefits for farming on degraded land, using biochar technology, and farm management based on biochar technology. Farmers are aware that biochar application can reduce farming costs because it is made from abundant available agricultural waste. Biochar production equipment is relatively inexpensive and affordable for farmers who want to improve their critical land conditions.Keywords: Appropriate Technology; Biochar; Critical Land.
Co-Authors A Astutik Aceng, Kasianus Agabus Ary Koreh Agnes Quartina Pudjiastuti Aldon Sinaga Alicia Nursia Aljun, Yohanes Amrul, Rusli Ana Arifatus Sa'diyah Ana Arifatus Sa'diyah Ana Arifatus Sa’diyah Anci, Ledisa Angeline Oktavia Ariffianti, Indah Arson, Prudensius Asnah Asnah Asnah Asnah Asnah Asnah Astri Sumiati Astutik Astutik Astutik Astutik Bambang Siswanto Bambang Siswanto Bili Piduwatu, Bili Cahya, Utik Tri Wulan David Kaluge Dian Noorvy Dianawati Dianawati Dion, Didi Elisabeth Nogo Elvina Setiawati Fatah, Hibatullah Amtsalul Frengky Umbu Kolambani Frengky Umbu Kolambani Gerardus Jova Gonsales, Pedro Hariadi Darmawan, Hariadi Hengki Samudra Hesti Triana Soelistiari Hidayati Karamina Himawan Himawan I Made Indra Agastya Ilastika, Friska Jamhari Jamhari Janur, Maria Yasinta Jimi, Nobertus Julianto, Reza Prakoso Dwi Junaitri, Marius Kevin Ishak Tri Setiawan Kornelis, Veri Laba, Jefri Wada M Marwoto Manukoto, Delivio Manupadaka, Sairo Maria Getrudis Yati Marian, piter Nababan, Candro Borsak Nanga, Agustinus Dama Ndua Nusa, Karolus Pemilu Nikmatul Khoiriyah Nikmatul Khoiriyah Oswaldus Oswaldus Ottovince, Herlina Ina Presti Ameliawati, Presti Puspitasari, Kristanti Ambar Rafael Leo Saputra Retno Ayu Dewi Novitawati Retno Wilujeng Reza Prokoso Dwi Julianto Ricky Indri Hapsari Sadiyah, Ana Arifatus Samsuri Tirtosastro Samsuri Tirtosastro Samsuriadi, Samsuriadi Sholehuddin, Nurul Sobang, Adrianus Janga Sombo, Yusvina Sumiati, Astri Susanto Susanto Susilo Ribut Anggarbeni, Susilo Ribut Sutoyo Sutoyo Sutoyo Sutoyo Syaputra, Roni Tandu, Antonius Theresia Sumei, Theresia Titis Adisarwanto, Titis Tri Mudjoko W H Utomo Wahyu Fikrinda Wahyu Fikrinda Wahyu Fikrinda Wakhid Yandaru, Angger Pedhut Yohanes Manggas