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Journal : Jurnal Pertanian Agros

PEMANFAATAN PUPUK KOMPOS AMPAS KELAPA DAN NPK DALAM PENINGKATAN PERTUMBUHAN TANAMAN SAWI KAILAN (Brassica oleraceae L.) Efrina Siregar; Widya Lestari; Novilda Elizabeth Mustamu; Siti Hartati Yusida Saragih
Agros Journal of Agriculture Science Vol 26, No 1 (2024): Edisi APRIL
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i1.4248

Abstract

Kailan mustard greens (Brassica oleraceae L.) is a horticultural plant that can be used as a family food source. This research aims to determine the effect of providing coconut dregs compost and NPK fertilizer on the growth of kailan mustard greens. The research was carried out in Ujung Bandar, Rantau Selatan, Labuhanbatu, North Sumatra. The experiment was arranged in a Randomized Block Factorial Design with the first factor being coconut dregs compost consisting of 4 levels, namely A0: control, A1: 200 g/plant, A2: 400 g/plant, A3: 600 g/plant, and the second factor was NPK which consists of 4 levels, namely N0: control, N1: 5g/plant, N2: 10 g/plant, N3: 15 g/plant. The results of the research showed that there was an interaction effect of providing coconut dregs compost and NPK on plant height, number of leaves and leaf area of kailan mustard greens. The combined dose of 600 g of coconut dregs with 15 g of NPK produced the best growth in plant height, number of leaves and leaf area of kailan mustard greens. Key words : coconut dregs;compost; fertilizer; kailan. INTISARISawi kailan (Brassica oleraceae L.) adalah tanaman hortikultura yang dapat dimanfaatkan sebagai sumber pangan keluarga. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian pupuk kompos ampas kelapa dan pupuk NPK terhadap pertumbuhan tanaman sawi kailan. Penelitian dilaksanakan di Ujung Bandar, Rantau Selatan, Labuhanbatu, Sumatera Utara. Percobaan disusun dalam Rancangan Acak Kelompok Faktorial dengan faktor pertama adalah kompos ampas kelapa yang terdiri dari 4 taraf, yaitu A0: kontrol, A1: 200 g/tanaman, A2: 400 g/tanaman, A3: 600 g/tanaman, dan faktor kedua NPK yang terdiri dari 4 taraf, yaitu N0: kontrol, N1: 5g/tanaman, N2: 10 g/tanaman, N3: 15 g/tanaman. Hasil penelitian menunjukkan adanya interaksi pengaruh pemberian kompos ampas kelapa dan NPK terhadap tinggi tanaman, jumlah daun, dan luas daun tanaman sawi kailan. Kombinasi dosis 600 g ampas kelapa dengan 15 g NPK menghasilkan pertumbuhan terbaik  terhadap tinggi tanaman, jumlah daun, dan luas daun tanaman sawi kailan. Kata kunci : ampas kelapa, kailan, kompos, pupuk.
PERTUMBUHAN TANAMAN RAIN LILY (Zephyranthes sp) HASIL IRADIASI SINAR GAMMA Yohanna Br Hutagalung; Kamsia Dorliana Sitanggang; Widya Lestari; Novilda Elizabeth Mustamu
Agros Journal of Agriculture Science Vol 26, No 2 (2024): Edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i2.4623

Abstract

Rain lily (Zephyranthes sp.) merupakan komoditas florikultura termasuk jenis tananaman hias dengan class dari Amerika. Zephyranthes sp. Adalah tanaman dengan bunga sempurna yang memiliki putik dan benang sari di organ yang sama. Tanaman ini mekar di 1 hingga 2 hari dengan frekuensi yang berganti. Penelitian dilakukan dikecamatan Merbau, Kabupaten.Labuhanbatu Utara, 21418 Indonesia. Di Pusat Aplikasi Isotop dan Radiasi,BATAN. Waktu Penelitian dilaksanakan dari bulan Januari sampai dengan Maret 2024. Riset ini menggunakan RAK non factorial dari tiga ulangan dengan 8 taraf perlakuan: R0 : Tanpa Sinar Gamma, R1: 2 Gy , R2: 4 Gy, R3: 6 Gy, R4: 8 Gy, R5:10 Gy, R6: 12 Gy, R7: 15 Gy. Hasil penelitian menunjukkan bahwa iradiasi sinar gamma yang semakin tinggi tidak memberikan hal yang positif untuk tanaman rain lily baik pada persentase hidup, tinggi tanaman dan fase generatif.
ISOLASI DAN KARAKTERISASI JAMUR DARI PUPUK KOMPOS LIMBAH SAWIT Saroh Ziatun Sa’adah; Widya Lestari; Fitra Syawal Harahap; Siti Hartati Yusida Saragih
Agros Journal of Agriculture Science Vol 26, No 2 (2024): Edisi Juli
Publisher : Fakultas Pertanian, Universitas Janabadra

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37159/jpa.v26i2.4621

Abstract

Oil palm plants are commodities that play an important role in improving the national economy, especially increasing employment opportunities and increasing state income. This research aims to microscopically isolate fungi from palm oil waste compost. This research method is used descriptively using quantitative methods. Research has been carried out by taking samples of palm waste fertilizer, isolation, purification and microscopic observations. The fungal isolation medium used was Potato Dextrose Agar (PDA). Based on the results of fungal isolation from empty oil palm bunches (TKKS), 1 fungal isolate was obtained which had a round shape, had septa and had hyphae whose cells were separated by partitions called septa and were branched. The conodiophores are white, appear straight and branched, characteristic of the purple hyphae with white spots and white spores. Key words: empty palm oil bunches; isolation; fungi