Joko Nugroho Wahyu Karyadi
Department of Agricultural and Biosystems Engineering, Faculty of Agricultural Technology, Universitas Gadjah Mada

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Application of Postharvest management of Corn to Support Integrated Farming System Joko Nugroho Wahyu Karyadi; Dwi Ayuni; Nursigit Bintoro; Sri Rahayoe; Bambang Purwantana
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 7, No 3 (2021): September
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (14.115 KB) | DOI: 10.22146/jpkm.53273

Abstract

Corn is a superior crop and its production centers are in the Grobogan and Pati Regency, Central Java Province, Indonesia. This plant is partly cultivated in farm fields and forest land owned by Purwodadi Forest Control Area (in Indonesia known as 'Kawasan Penguasaan Hutan – KPH) as an intercrop during re-planting of tropical hardwood, namely teak. Corn has become one of the significant side hustles for most of the residents in KPH with high incomes. Unfortunately, this high corn production was not accompanied by adequate postharvest technology. Some vital problems occurred, especially during raining season, like fungi, undesired germination, and many more. Therefore, the weight loss of corn production is still very high. This activity aimed to assist farmers by changing how farmers look at the quality assurance of the produced corn products and improving farmers' postharvest corn practices. This activity's method was introducing corn harvesting machines, namely corn sheller machines, and improving the farmers’ knowledge about the quality control of corn. The activities were carried out to allocate five (5) units of corn sheller units to five Forest Village Community Institutions (in Indonesia known as 'Lembaga Masyarakat Desa Hutan,' LMDH) who were the targeted partners. The activities of sharing the knowledge regarding good postharvest for corn were going well and the participants gave excellent responses and actively participated.
Effect of Biogas Slurry Fertilizer on Dynamics of Soil Consistency and Tillage Power Requirement Cicilia Candra Palupi; Ngadisih Ngadisih; Joko Nugroho Wahyu Karyadi; Rose Tirtalistyani; Muhammad Heikal Ismail; Hanggar Ganara Mawandha
Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Vol 10 No 1 (2022): Jurnal Ilmiah Rekayasa Pertanian dan Biosistem
Publisher : Fakultas Teknologi Pangan & Agroindustri (Fatepa) Universitas Mataram dan Perhimpunan Teknik Pertanian (PERTETA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (621.344 KB) | DOI: 10.29303/jrpb.v10i1.318

Abstract

Biogas slurry (BS) is a waste used as an organic fertilizer that could improve soil properties. This study was aimed to explore the dynamic of soil consistency and tillage power requirement due to BS fertilizer. Soil consistency and tillage power requirement were analyzed by the liquid (LL), plastic (PL), and adhesive (AL) limits, plasticity index (PI), workability range (WR), and liquidity index (LI). The study was conducted with incubation time and the BS type factors that include control (K), liquid BS (P1), and solid BS (P2). The incubation time factors comprised 2 (I1), 4 (I2), 6 (I3), 8 (I4), 10 (I5), and 12 weeks incubation (I6). The ANOVA test showed that BS fertilizer significantly affected LL, PL, AL, PI, and LI but did not significantly impact WR. The liquid BS fertilizer decreased LL and PI by 2%, increased LI 0.022, and decreased tillage power requirement by 1 horse power (HP). The solid BS, increased LL and PL 3%, PL 3% and AL 2%, while LI decreased by 0.074. The mathematic modeling with a first-order kinetic model was acceptable to describe soil consistency and tillage power requirement (R2>80% and X2<X2 table). The rate of AL for K, P1, and P2 were -0.022/day, -0.032/day, and -0.049/day, respectively. The minus is symbol of decreasing rate. The rate of WR for K, P1, and P2 were 0.024/day, 0.046/day, and 0.079/day, respectively. The form of BS fertilizer (liquid, solid) has changed the soil consistency which in turn has an impact on tillage power requirement.