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All Journal Jurnal Pertanian Agros Lumbung: Jurnal Ilmiah Politeknik Pertanian Negeri Payakumbuh Journal of Smart Agriculture and Environmental Technology
Sembiring, Ngakumalem
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Environmental Science Veterinary

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RESPON BEBERAPA VARIETAS UBI JALAR LOKAL SUMATERA BARAT DENGAN APLIKASI BEBERAPA JENIS PUPUK ORGANIK CAIR Sembiring, Ngakumalem; Sondang, Yun; Anidarfi
LUMBUNG Vol. 22 No. 1 (2023): Februari
Publisher : Politeknik Pertanian Negeri Payakumbuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32530/lumbung.v22i1.572

Abstract

Ubi jalar termasuk komoditi pangan penghasil karbohidrat penting untuk mendukung ketahanan pangan nasional. Berbagai varietas ubi jalar telah dibudidayakan, namun produktivitas rata-rata masih di bawah varietas unggul. Tujuan penelitian adalah untuk mengetahui tanggap beberapa varietas ubi jalar lokal Sumatera Barat dengan aplikasi beberapa jenis POC. Pelaksanaan penelitian dari April sampai dengan Agustus 2019, berloksi  di lahan Politani Payakumbuh. Perlakuan terdiri dari 2 faktor, yang disusun dalam Rancangan Acak Kelompok faktorial.  Faktor I adalah 4 varietas lokal ubi jalar Sumatera Barat yang dikelompokkan berdasarkan warna daging umbi, yaitu V1=  umbi ungu muda ; V2 = umbi ungu tua; V3 = umbi oranye; dan V4 =   umbi putih dan faktor ke II adalah 3 pelakuan POC dan 1 kontrol, yaitu P0 = tanpa POC; P1 = POC MOL Buah; P2 = POC Sabut Kelapa; dan P3 = POC pabrikan, sehingga diperoleh 16 unit perlakuan dengan 3 kali ulangan. Hasil penelitian menunjukkan bahwa perlakuan varietas berpengaruh nyata terhadap pertumbuhan vegetatif (panjang batang dan jumlah cabang) sedangkan perlakuan POC tidak memberikan pengaruh nyata.  Perlakuan varietas dan POC berpengaruh nyata terhadap pertumbuhan generatif.  Perlakuan MOL buah memberikan pengaruh nyata dan meningkatkan bobot umbi/tanaman, berbeda tidak nyata dengan POC sabut kelapa dan POC pabrikan. Sedangkan perlakuan varietas memberikan pengaruh nyata terhadap jumlah dan bobot umbi/tanaman. Jumlah dan bobot umbi tertinggi terdapat pada varietas ubi jalar ungu tua, diikuti oleh ubi jalar putih, ubi jalar oranye, dan terendah pada ubi jalar ungu muda.
PENGARUH LAMA WAKTU PENGOMPOSAN TERHADAP KANDUNGAN HARA PUPUK ORGANIK KoHeA+MF Sondang, Yun; Fitri, Febria; Wulantika, Trisia; Sembiring, Ngakumalem; Hardaningsih, Wiwik; Wahono, Sentot; Khazyanty, Khazyanty
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.v26i2.4688

Abstract

The quality of organic fertilizer produced from the composting process depends on the basic ingredients used and the length of time for composting. The quality of organic fertilizer that meets the standards will affect soil fertility and plant growth. The aim of this research was to see the effect of the length of composting time on the nutrient content of KoHeA+MF organic fertilizer.. The length of composting time is 7, 14 and 21 days. The parameters observed included pH, C-organic, N-total, P2O5, K2O, Mg-total, Ca-total and CEC. The results obtained at 21 days the content of C-organic, N-total, P2O5 and CEC was higher compared to 7 and 14 days. In general, the length of composting time does not really affect the nutrient content of the KoHeA+MF organic fertilizer produced. At 7 days composting time has met the quality standards of organic fertilizers that can be used to improve soil fertility and increase crop production.
Application of KoHeA+MF Compost at Various Dose of Inorganic Fertilizer to Increase Soil Fertility and Production of Hybrid Corn Seeds JH-37 Wulantika, Trisia; Sondang, Yun; Sembiring, Ngakumalem; Hardaningsih, Wiwik; Wahono, Sentot; Fitri, Febria; Ariliusra, Azzukhruf; Harnas, Hafid
Journal of Smart Agriculture and Environmental Technology Vol. 3 No. 2 (2025): August 2025, Published 2025-08-19
Publisher : Indonesian Soil Science Society of South Sumatra in Collaboration With Soil Science Department, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60105/josaet.2025.3.2.65-71

Abstract

Corn is one of the important food commodities after rice and wheat. Corn acts as a food, feed, and industrial ingredient. The need for corn in Limapuluh Kota Regency is very high along with the development of chicken farming businesses that require corn as the largest feed mixture. However, the need for corn has not been met by corn production in this Regency. The low corn production is more due to the low supply and use of superior corn seeds, as well as low soil fertility. One effort to increase soil fertility is the use of KoHeA+MF compost. The purpose of this study is to ascertain how the production of KoHeA+MF hybrid seeds is impacted by the dosage of KoHeA+MF compost and the quantity of inorganic fertilizer that can be substituted. The study was conducted from May to September 2024 at the seed production land of PT. AZUMA Situjuah, Limapuluh Kota Regency, West Sumatra. The study used a Randomized Block Design (RBD) with 5 treatments, including: 100% inorganic fertilizer (Control), 75% inorganic fertilizer + 10 tons/ha KoHeA+MF, 50% inorganic fertilizer + 10 tons/ha KoHeA+MF, 25% inorganic fertilizer + 10 tons/ha KoHeA+MF, and 0% inorganic fertilizer + 10 tons/ha KoHeA+MF.The application of various doses of inorganic fertilizer combined with 10 tons/ha KoHeA+MF affected soil fertility, especially the increase in soil pH (H2O), organic C, total N, P2O5, K2O, and soil Ca. The application of inorganic fertilizer + 10 tons/ha KoHeA+MF significantly affected vegetative growth, yield components and corn kernel production of JH37 corn. The optimal dosage for dry corn kernel production is 10 tons/ha of KoHeA+MF and 75% inorganic fertilizer.
Co-Authors Anidarfi Ariliusra, Azzukhruf Fitri, Febria Hardaningsih, Wiwik Harnas, Hafid Khazyanty, Khazyanty Sentot Wahono Trisia Wulantika Yun Sondang