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All Journal Jurnal Pendidikan Dasar 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 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
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Nursing Physics Public Health Social Sciences Other

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Changes in chemical properties of three soil types after application of biochars and organic fertilizers for two years Frengky Umbu Kolambani; Widowati Widowati
Journal of Degraded and Mining Lands Management Vol 9, No 4 (2022)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2022.094.3715

Abstract

This study assessed organic matter,  N, P, and K contents in three soil types after the application of biochars and organic fertilizers for two years. The experiment was arranged in a nested design with two factors. Three types of biochar and two types of organic fertilizer were used singly or in combination on three soil types. Among the treatments, the application of tobacco processing waste biochar on Inceptisol and rice husk biochar plus manure on Entisol resulted in the highest soil organic matter and total nitrogen contents. The highest phosphorus content was observed from rice husk biochar treatment on Inceptisol and from rice husk biochar+manure treatment on Entisol and Litosol. The highest K content in Inceptisol and Litosol occurred with each biochar treated rice husk biochar+manure treatment. The highest K content in Inceptisol and Litosol was observed in each tobacco waste biochar+compost treatment and in compost treatment only, respectively.
STUDI KELAYAKAN USAHA PEMBUATAN BATA MERAH BERBAHAN BAKU SEDIMEN BENDUNGAN SENGGURUH Widowati Widowati; Aldon Sinaga
JAPI (Jurnal Akses Pengabdian Indonesia) Vol 1, No 1 (2016)
Publisher : Universitas Tribhuwana Tunggadewi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (427.475 KB) | DOI: 10.33366/japi.v1i1.458

Abstract

Pembuatan Bata Merah berbahan baku Sedimen Sengguruh memiliki karakteristik yang unik. Memanfaatkan masalah bendungan sengguruh atas sedimentasi yang terjadi, pengrajin bata merah sengguruh memperoleh peluang ekonomi. Hal ini yang mendorong tim IBM memilih kelompok ini sebagai mitra. Permasalahan utama dalam keberlanjutan usaha ini adalah kelayakan usaha ini secara ekonomi. Dari 5 skenario yang dirancang, dapat ditarik kesimpulan sebagai berikut : (1) Keuntungan, tertinggi ditunjukkan oleh kenario E dengan nilai keuntungan Rp. 121.253.422,-., (2) Efisiensi ekonomi yang dinyatakan dengan RCR, menunjukkan skenario E merupakan skenario paling ekonomis dengan nilai RCR 1,28, (3) Waktu pencapaian titik impas terbaik ditunjukan oleh skenario B, D dan E yang terjadi dalam waktu 2 tahun, (4). BEP Harga terbaik diperoleh skenario D dengan harga pokok produksi sebesar Rp. 324,- per batang, (5) Tingkat BCR terbaik diperoleh skenario E dengan nilai BCR 2,17
Impact of Biochar Use After Five Years in Vertisol and NPK Fertilization on Yield of Shallot (Allium ascalonicum L.) Oswaldus Oswaldus; Widowati Widowati; Hidayati Karamina
JURNAL BUDIDAYA PERTANIAN Vol 18 No 1 (2022): Jurnal Budidaya Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/10.30598/jbdp.2022.18.1.35

Abstract

Vertisols are soils that expand when wet but shrivel and harden when dry. Their high clay content can affect soil aeration so that it can interfere with nutrient absorption. Biochar is a soil enhancer that has a longer impact on the sustainability of soil fertility. The aim of this study was to evaluate the residual dose of biochar that had been applied five years previously and NPK fertilizer on the growth and yield of shallots on Vertisol as soil medium. This study was conducted in Tunggulwulung Village, Lowokwaru District, Malang City. The method used a two-factor Randomized Block Design, consisting of biochar residue with 3 doses (0; 250; 500 g per polybag) and NPK fertilization (with and without fertilization). There was a positive impact from the residue of the previous five-year application of biochar on increasing the number of shallot leaves and bulbs on Vertisol.
Development of Cooperative Script Model Mathematics Learning Devices with Realistic Mathematical Approach to Improve Mathematical Communication Ability for Grade VII Algebraic Materials Himawan Himawan; Widowati Widowati; Kristanti Ambar Puspitasari
Budapest International Research and Critics Institute-Journal (BIRCI-Journal) Vol 5, No 4 (2022): Budapest International Research and Critics Institute November
Publisher : Budapest International Research and Critics University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33258/birci.v5i4.7092

Abstract

This research aims to: (1) obtain a valid mathematics learning tools model cooperative script with realistic mathematics approaches to improve mathematics communication skills; (2) a practical mathematics learning tools model cooperative script with realistic mathematics approaches to improve mathematics communication skills; (3) test the effectiveness of mathematics learning tools model cooperative script with realistic mathematics approaches to improve mathematics communication skills; The research consisted of two stages. The first stage is developing a learning device. The second stage is the implementation of learning using the learning device. The development of learning tolls in this study adapting development model proposed by Thiaragajan, Semmel, & Semmel includes define, design, develop, and disseminate. Disseminate not implemented in this study. The average value of the validation by the experts that developed the device is good. Individual mastery test results showed t calculate  7.3420296 > t table so it can exceed Minimum Criteria of Mastery Learning. Average test results the classical completeness showed z calculate  2,4495 is outside the reception area of H₀. So, it can be concluded mathematics learning model of cooperative script with realistic mathematical approaches to effectively help student achieve complete Minimum Criteria of Mastery Learning. The result test difference in average value of mathematical communication ability test showed t calculate  6.277818 > t table. This means that the average student mathematical communication ability test experimental class is better than the average test communication ability mathematical student control class. Being two different test results show the proportion of z calculate  2.30551 is outside the reception area H₀. So it can be concluded that the number of students with communication skills math test scores reached the limit of Minimum Criteria of Mastery Learning in the experimental class more than the number of students who reach the limit value Minimum Criteria of Mastery Learning completed in experimental class. Data were analyzed by SPSS 17 resulted in the regression equation Y ̂ = 51.652 + 6.019X₁ + 5.562X₂, It means each additional character variable independence (X₁) of the unit will add to the value of mathematical ability test (Y ̂) of 6.019. Average each additional variable of mathematical communication skills (X₂) of the unit will occur the value addition of mathematical communication ability test (Y ̂) of 5.561.
Upaya meningkatkan kompetensi guru dalam menyusun RPP melalui supervisi akademik dengan teknik pertemuan individual di sekolah dasar Widowati Widowati
Jurnal Pendidikan Dasar Vol 10, No 1 (2022): Jurnal Pendidikan Dasar
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jpd.v10i1.64412

Abstract

Learning planning is a very important step before the implementation of learning.Careful planning is needed so that the implementation of learning runs effectively. Learningplanning is poured into the Learning Implementation Plan (RPP) or several other terms such aslearning design, learning scenarios. RPP contains KD, indicators to be achieved, material to bestudied, learning methods, learning steps, learning media, and learning resources andassessments. In this school action research consists of two cycles, namely cycle I and cycle 2.Where in each cycle consists of action planning, action implementation, observation andreflection. This research was conducted on teachers of SD Negeri Gondowangi 1 in semester 2of the 2015/2016 academic year. Data collection in cycles I and II used interviews andquestionnaires. The analysis technique was carried out qualitatively and quantitatively.This study aims to improve the competence of teachers through the making of LearningImplementation Plans. The results showed that with the supervision of the principal there wasan increase. The teacher's assessment results on average reached a percentage value of 79.54 to91.13, an increase of 11.59 after academic supervision was carried out with individual meetingtechniques. Therefore, it is expected to always improve their performance in learning so thatthe quality of education at SDN Gondowangi will increase.
PERBAIKAN PERTUMBUHAN DAN HASIL KEDELAI HITAM (Glycine max (L.) MERRIL) DENGAN BIOCHAR DAN PUPUK NPK DI LAHAN KERING Gerardus Jova; W Widowati; M Marwoto
Jurnal Tanah dan Sumberdaya Lahan Vol. 8 No. 1 (2021)
Publisher : Departemen Tanah, Fakultas Pertanian, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (263.224 KB) | DOI: 10.21776/ub.jtsl.2021.008.1.20

Abstract

The increase in black soybean production is constrained by the decreasing productive land area due to increasing population pressure. Dryland is an alternative that can be developed because of its availability. This study aimed to determine the best dosage of biochar and NPK for black soybean plants in dryland. The treatments were arranged in a randomized block design with two factors that were repeated three times. The first factor was the dose of tobacco Jengkok biochar (0, 10, 15, and 20 t ha-1) and the second factor was the dose of NPK Phonska fertilizer (0, 25, 50, and 100 kg ha-1). Soil used for this study was collected from dry land in Gading Kulon Village, Dau District, Malang Regency. Ten kilograms of the collected soil was placed in a polybag and mixed with biochar according to the treatment dose. After 7 days of biochar application, soybean seeds of Detam 1 variety were planted, and soil samples were taken to observe soil organic C, N, P, and K contents. NPK fertilizer was applied according to the treatment dose at 10 days after planting, Plant height and number of leaves were observed at 2, 4, and 6 weeks after planting. Biomass and crop yields were observed at physiological maturity at 85 days after planting. The results showed that the highest levels of organic C, total N, and K were at a dose of 20 t biochar ha-1, but the use of 15 t biochar ha-1 was the optimum dose for biomass and yield of black soybeans. The highest seed weight was obtained from 100 kg NPK ha-1.
BANGKIT DENGAN USAHA TAMBAK IKAN NILA DIMASA PANDEMI Indah Ariffianti; Rusli Amrul; Hengki Samudra; Elvina Setiawati; Widowati Widowati
Valid Jurnal Pengabdian Vol 1 No 1 (2022)
Publisher : Lembaga Pengembangan, Penelitian dan Pengabdian Kepada Masyarakat Sekolah Tinggi Ilmu Ekonomi AMM

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (643.829 KB)

Abstract

Tujuan pengabdian ini adalah memberikan pemahaman tentang perencanaan bisnis dan pengelolaan usaha Ikan Nila, pengembangan produk baru Ikan Nila, meningkatkan kemampuan mitra tentang promosi pemasaran usaha dan membantu proses kerjasama dengan pihak lain melalui media. Pengabdian dilakukan pada Kelompok Usaha Ikan Nila di Desa Buwun Sejati Kecamatan Narmada Kabupaten Lombok Barat. Permasalahan kelompok adalah pengembangan usaha Ikan Nila belum memiliki perencanaan yang jelas sehingga sasaran maupun target usaha Ikan Nila yang ingin dicapai tidak jelas, belum ada pengembangan produk baru dari Ikan Nila, belum ada promosi pemasaran usaha dan belum mengembangkan akses untuk melakukan kerjasama atau dalam bentuk kerjasama dengan pihak lain. Metode pelaksanaan menggunakan cara penyuluhan dan pendampingan kelompok usaha. Hasil yang didapat dari kegiatan ini adalah kelompok memahami tentang manajemen usaha, pemasaran dan pengelolan keuangan dengan baik. Hal ini berdampak pada peningkatan pengembangan pada Kelompok Ikan Nila dan diharapkan melalui pemberdayaan ini kelompok lebih meningkatkan kemampuan dalam manajemen kelompok dan dalam pengembangan produk Ikan Nila sehingga dapat meningkatkan kesejahteraan kelompok
Long-term residual effects of biochar from tobacco scraps on red spinach (Amaranthus tricolor) growth in Entisols: a five-year field experiment with urea fertilizer addition Agabus Ary Koreh; Widowati; Reza Prokoso Dwi Julianto
Jurnal Ilmiah Pertanian Vol. 20 No. 2 (2023): Jurnal Ilmiah Pertanian
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/jip.v20i2.13451

Abstract

The residual effects of biochar doses on Entisols after five years of application have not received attention. However, there is an assumption that the positive effects of biochar can last longer in the soil. Therefore, field experiments were carried out in polybags to assess the residual impact of applying biochar doses in the fifth year and the addition of urea fertilizer on the growth of red spinach (Amaranthus tricolor) in Entisol. The growing media used in this study was a medium previously used for five years containing biochar in Entisols. This study used a 2-factor randomized block design consisting of residual doses of biochar (3 levels) and the addition of urea fertilizer (2 levels). There was no interaction between biochar and N fertilizer. Application of biochar at a dose of 500 g/polybag gave a better follow-up effect than 250 g/polybag on the growth of red spinach in the fifth year. Chlorophyll content increased with N fertilization. Applying biochar in the fifth year and N fertilization positively impacted the growth of red spinach in Entisol. Spinach yield increased 30% at the remaining dose of biochar 500 g/polybag and 52% with N fertilization. Within five years, using higher doses of biochar and adding urea will result in better growth of red spinach in Entisol.
PENDAMPINGAN PEWARNAAN BATIK SINGONEGORO MENGGUNAKAN PEWARNA ALAMI DARI TANAMAN INDIGOFERA TINCTORIA Widowati Widowati; Ana Arifatus Sa’diyah; Nikmatul Khoiriyah
Jurnal Abdi Insani Vol 10 No 3 (2023): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v10i3.1049

Abstract

Indonesia has a noble cultural heritage of using safe natural dyes and compounds that are beneficial to the body. Indonesia also has natural wealth and biodiversity which are raw materials for making natural substances. This activity aims to: increase community knowledge and skills about eco-printing textile craft techniques, increase community knowledge and skills about naturally dyed tie-dye textile craft techniques, increase community knowledge and skills about naturally dyed screen printing textile craft techniques, and increase knowledge and skills the community about the utilization of natural dye source plants to become natural coloring pastes. Training and assistance in the use of natural dye applications in the batik business are carried out through several effective methods. Community service activities are carried out using the workshop method or hands-on training, counseling and presentations, and technical guidance. The results of training and mentoring in the use of natural dye applications in batik businesses are very positive and have broad implications, both for the batik business itself, as well as for the environment and surrounding communities.
Reallocation of the use of chemical fertilizers and pesticides to increase the income of vegetable farmers and prevent land degradation Agnes Quartina Pudjiastuti; David Kaluge; Widowati Widowati
Journal of Degraded and Mining Lands Management Vol. 11 No. 1 (2023)
Publisher : Brawijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15243/jdmlm.2023.111.5095

Abstract

The study, which aimed to analyze the use of chemical fertilizers and pesticides using the Cobb-Douglas production function approach and their reallocation to increase the income of vegetable farmers and prevent land degradation, was conducted in Sumberejo Village, Batu City, Indonesia. Data were collected from 138 pakcoy (Brassica rapa), celery (Apium graveolens), and red chili (Capsicum annuum) farmers through interviews using a questionnaire. The relationship between input and output was analyzed by regression with the Cobb-Douglas production function. Data validity, reliability, and classical assumption tests were performed to ensure the goodness of fit regression model. Furthermore, the F test and t-test were applied to analyze production response to chemical fertilizers and pesticides. This study revealed that the modeled regression equation is appropriate, where R2 = 0.827-0.933. Vegetable production gives a different response to the use of chemical fertilizers (TSP, Urea, and NPK) and pesticides. Increasing this chemical in pakcoy and celery farming is possible, but it needs to be considered because it has no significant effect on increasing production. The productivity of these two types of plants is relatively high. Farmers need to compare the costs of adding these inputs to additional income and the possibility of land degradation. Chemical fertilizers and pesticides have been excessive in red chili farming, so productivity is very low. There are indications that the land has been degraded, but to be sure, a study is needed on the chemical content of the vegetable fields in Sumberejo Village and the optimal use of chemical fertilizers and pesticides.
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 Anci, Ledisa Ariffianti, Indah Arson, Prudensius Asnah Asnah Asnah Asnah Astri Sumiati Astutik Astutik Astutik Astutik Bambang Siswanto Bambang Siswanto Bili Piduwatu, Bili Cahya, Utik Tri Wulan David Kaluge 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 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 Oswaldus Oswaldus Ottovince, Herlina Ina Presti Ameliawati, Presti Puspitasari, Kristanti Ambar Retno Ayu Dewi Novitawati 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