Retno Muningsih
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ANALISIS UNSUR HARA HASIL FERMENTASI LIMBAH PADAT TEH SEBAGAI BAHAN PUPUK ORGANlK Retno Muningsih
Jurnal Ilmiah Media Agrosains Vol 5 No 1 (2019): Edisi Desember
Publisher : Unit Penelitian dan Pengabdian Masyarakat (UP2M) Politeknik Banjarnegara

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Abstract

Limbah teh diperoleh dari hasil pengolahan teh maupun pemangkasan tanaman teh.Limbah yang berasal dari hasil pengolahan berupa limbah padat dan cair. Limbah padatdiperoleh pada saat pelayuan berupa teh teroksidasi/terbakar, yaitu berupa pucuk teh yangmengalami perubahan warna daun menjadi merah karena keterlambatan proses pembalikanpada pelayuan pucuk. Pemanfaatan limbah pabrik pengolahan teh berupa teh teroksidasidapat dilakukan dengan pengomposan. Hasil dari proses pengomposan tersebut akanmenghasilkan pupuk organik padat yang dapat diaplikasikan pada media tanam untukpertumbuhan bibit tanaman. Tujuan penelitian ini untuk mengetahui kandungan unsur haralimbah padat hasil dari pengolahan teh yang digunakan sebagai bahan pupuk organik.Penelitian dilaksanakan di green house Politeknik LPP. Pengambilan sampel limbah padatteh teroksidasi di UP Tanjungsari PT Tambi Wonosobo dan analisa unsur hara limbah padatdilaksanakan di Laboratorium BPTP Yogyakarta. Kandungan hara limbah padat teh yangdianalisa meliputi N, P, K, C-organik, dan C/N rasio. Hasil analisa limbah padat tehmenunjukkan unsur hara C-organik sangat tinggi, N dan C/N rasio lebih tinggi daripadakandungan hara P dan K. Fermentasi limbah padat pucuk teh teroksidasi dapatdirekomendasikan sebagai pupuk organik.
INTENSITAS PENYIRAMAN POC SAMPAH PASAR PADA STEK KOPI ROBUSTA (Coffea canephora) Retno Muningsih; Yoga Priandana
Jurnal Ilmiah Media Agrosains Vol 6 No 2 (2020): Edisi Desember
Publisher : Unit Penelitian dan Pengabdian Masyarakat (UP2M) Politeknik Banjarnegara

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Abstract

Organic waste can be used as compost, liquid organic fertilizer (POC) and other kinds of animal feed. Market waste as a source of organic fertilizer has not been utilized optimally. Making POC from market waste can utilize vegetable and fruit waste in the hope that there are nutrients present in rotten fruit (such as elements N, P and K and some micro elements that can still be beneficial for plants). Non factorial randomized Complete block design (RCBD) with 5 treatments of watering intensity: S0 (without watering), S1 (watering once a week), S2 (watering every 2 weeks), S3 (watering every 3 weeks), and S4 (watering every 4 weeks). The variables observed were the number of leaves, leaf color, shoot stem diameter, shoot length and the number of shoots. The data obtained were analyzed using the F test, if there was a if there were differences between treatments followed by the Duncan Multiple Range Test (DMRT) with a level of 5%. The results showed that the intensity of watering using POC market waste was not able to increase the growth in the number of leaves, leaf color, shoot stem diameter, shoot length and the number of Robusta coffee cuttings. Kata kunci: Kopi, Pupuk Organik Cair (POC), Robusta, Stek Abstrak Sampah organik dapat dimanfaatkan sebagai kompos, pupuk organik cair (POC) dan macam pakan ternak. Sampah pasar sebagai salah satu sumber pupuk organik belum bayak dimanfaatkan secara maksimal. Pembuatan POC dari sampah pasar dapat memanfaatkan sampah sayur dan buah dengan harapan masih terdapat unsur hara yang )terdapat dalam buah yang busuk (seperti unsur N, P dan K serta beberapa unsur mikro yang masih bisa menguntungkan bagi tanaman). Penelitian menggunakan Rancangan Acak kelompok Lengkap (RAKL) non faktorial dengan 5 perlakuan intensitas penyiraman yaitu: S0 (tanpa penyiraman), S1 (penyiraman 1 minggu sekali), S2 (penyiraman 2 minggu sekali), S3 (penyiraman 3 minggu sekali), dan S4 (penyiraman 4 minggu sekali). Variabel yang diamati adalah jumlah daun, warna daun, diameter batang tunas, panjang tunas dan jumlah tunas. Data yang diperoleh dianalisis menggunakan Uji F, apabila terdapat perbedaan antar perlakuan dilanjutkan dengan uji Duncan Multiple Range Test (DMRT) dengan taraf 5%. Hasil penelitian menunjukkan intensitas penyiraman menggunakan POC sampah pasar belum mampu meningkatkan pertumbuhan jumlah daun, warna daun, diameter batang tunas, panjang tunas dan jumlah tunas stek kopi Robusta.
EFIKASI EKSTRAK Ageratum conyzoides SEBAGAI PENGENDALI GULMA PASCA TUMBUH PADA BERBAGAI KONSENTRASI Retno Muningsih
Jurnal Ilmiah Media Agrosains Vol 8 No 1 (2022): Edisi Desember
Publisher : Unit Penelitian dan Pengabdian Masyarakat (UP2M) Politeknik Banjarnegara

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Abstract

Weeds are plants whose presence is not desired in the planting area because they are considered detrimental, inhibiting plant growth and production. The losses caused by the presence of weeds in cultivated areas can be very large, but these losses are rarely measured because weeds and cultivated plants are both plants (plants). Chemist weed control is widely used because the effects are seen more quickly and in an easier way. There can also be competition between weeds because of the allelopathy that can suppress the growth of fellow weeds and/or cultivated plants. Allelopathy is one of the ingredients that can be used as a herbicide biological material. Ageratum conyzoides contains chemical compounds from the class of alkaloids, anthraquinones, terpenes, steroids, tannins and phenols that can inhibit cell division germination, and inhibit the growth and/or development of weeds/other plants. This study aimed to determine the efficacy of Ageratum conyzoides extract used as a biological herbicide and obtain a concentration of Ageratum conyzoides extract which could be used as a biological herbicide. The experiment was carried out at the Krajan Practice Gardens, Polytechnic LPP Yogyakarta, with treatment concentrations of extracts of Ageratum conyzoides, namely 0% (A0), 1% (A1), 3% (A2), 5% (A3) and 7% (A4) per m² sample plot. Treatment A3 (3% concentration) was the concentration that caused the greatest poisoning symptoms compared to treatments A5 (5% concentration), A7 (7%), A1 (1% concentration) and A0 (0% concentration).Keywords: Ageratum conyzoides, bioherbisida, weed