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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Rhizobia
Sianturi, Pahala LL
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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PENGARUH PEMBERIAN PUPUK KANDANG AYAM DAN ABU VULKANIK TERHADAP PERTUMBUHAN DAN PRODUKSI BAWANG MERAH (Allium ascalonicum L.) SERTA KETERSEDIAAN SILIKA DI LAHAN SAWAH: THE EFFECT OF GIVING CHICKEN AND VULcanic Ashes FERTILIZER ON THE GROWTH AND PRODUCTION OF ONION (Allium ascalonicum L.) AND THE AVAILABILITY OF SILICA IN SAWAH Sianturi, Pahala LL; Silaen, Sihar; Manik, Hermanto
Jurnal Ilmiah Rhizobia Vol 2 No 2 (2020): Jurnal Ilmiah Rhizobia Edisi Agustus 2020
Publisher : Prodi Agroteknologi Fakultas Pertanian Universitas Simalungun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36985/rhizobia.v9i2.309

Abstract

Penelitian bertujuan mengetahui pengaruh pemberian pupuk kandang ayam dan abu vulkanik terhadap pertumbuhan, produksi dan ketersediaan silika pada tanaman bawang merah (Allium ascalonicum L.) di lahan sawah. Penelitain dilakukan di lahan persawahan, Jalan Harmonika Baru, Tanjung Sari, Kecamatan Medan Selayang, dengan ketinggian tempat ± 30 meter dpl. Penelitian dilaksanakan Juni sampai Agustus 2019. Penelitian menggunakan Rancangan Acak Kelompok 2 faktor. Faktor pertama, pupuk kandang ayam 3 taraf: A1=2 kg/plot, A2=4 kg/plot, A3=6 kg/plot. Faktor kedua, abu vulkanik 3 taraf: V 1= 1,5 kg/plot, V2=3,0 kg/plot, V3=4,5 kg/plot. Hasil penelitian menunjukkan bahwa perlakuan dosis pupuk kandang ayam hingga dosis 6 kg/plot nyata meningkatkan tinggi tanaman, jumlah daun, bobot basah dan bobot kering per sampel, bobot basah dan bobot kering per plot, tetapi berpengaruh tidak nyata terhadap jumlah anakan serta ketersediaan silika di lahan sawah. Perlakuan dosis abu vulaknik hingga dosis 4,5 kg/plot nyata meningkatkan tinggi tanaman, jumlah daun, bobot basah per plot, bobot kering per sampel dan bobot kering per plot, tetapi berpengaruh tidak nyata terhadap jumlah anakan dan bobot basah per sampel serta ketersediaan silika di lahan sawah. Interaksi antara dosis pupuk kandang ayam dan abu vulkanik berpengaruh tidak nyata terhadap semua parameter yang diamati serta ketersediaan silika di lahan sawah.
Appplication of Biochar and Rice Husk Ash to sulfur Absorption, Growth and Production of Shallots Plant (Allium ascalonicum L.) Aritonang, Sri Pratiwi; Sianipar, Ebsan Marihot; Sitorus, Efbertias; Sianturi, Pahala LL
Jurnal Penelitian Pendidikan IPA Vol 11 No 6 (2025): June
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i6.11115

Abstract

Soil fertility decline and sulfur deficiency are major constraints in shallot (Allium ascalonicum L.) cultivation, especially in sandy soils with low cation exchange capacity. Biochar and rice husk ash are potential soil amendments known to improve soil structure, nutrient availability, and crop productivity. This study aimed to determine the effect of rice husk biochar and rice husk ash on the growth, yield, and sulfur uptake of shallots. A factorial experiment was conducted using a Randomized Group Design (RGD) with two factors: biochar and rice husk ash, each at three dose levels. Results showed that biochar application improved the number of leaves, number of tillers, and bulb weight per unit, while rice husk ash had a limited effect, mainly enhancing leaf number at early growth. No significant interaction between the two amendments was observed across measured parameters, including sulfur uptake. These findings suggest that biochar contributes more effectively to shallot growth and yield than rice husk ash under the tested conditions. Further studies are recommended to optimize the combined use of organic amendments and to explore their long-term effects on soil nutrient dynamics and crop performance.
Co-Authors Ebsan Marihot Sianipar Efbertias Sitorus Manik, Hermanto Silaen, Sihar Sri Pratiwi Aritonang