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ANJAR JULIAN PRAGARA

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Abstrak (Bhs. Indonesia)

Penelitian ini bertujuan untuk 1) menjelaskan pengaruh residu pupuk Si-zeolit terhadap karakter agronomi bawang merah pada tanah inceptisol, 2) menjelaskan pengaruh residu pupuk Si-arang ampas tebu terhadap karakter agronomi tanaman bawang merah pada tanah inceptisol, 3) menjelaskan interaksi antara residu pupuk Si-zeolit dan rendemen Si-arang ampas tebu terhadap karakter agronomi tanaman bawang merah pada tanah inceptisol. Penelitian ini dilakukan di screen house Fakultas Pertanian Universitas Jenderal Soedirman dari bulan Maret sampai Juli 2021. Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK), dengan ulangan sebanyak tiga kali. Perlakuan yang dicoba meliputi dua faktor yaitu jenis residu pupuk silika terdiri atas zeolit, arang ampas tebu, dan pupuk Si (zeolit + arang ampas tebu). Faktor kedua adalah dosis pupuk silika dengan taraf 0;5;dan 10 g/tanaman. Variabel pengamatan meliputi tinggi tanaman, jumlah daun, jumlah anakan, jumlah umbi, bobot segar tajuk, bobot kering tajuk, bobot segar umbi, bobot kering umbi, bobot segar akar, dan bobot kering akar. Hasil penelitian menunjukan Perlakuan residu jenis pupuk Si-zeolit terhadap karakter agronomi bawang merah pada tanah inceptisol meningkatkan jumlah umbi per rumpun. Pemberian residu dosis pupuk Si-zeolit terhadap karakter agronomi bawang merah pada tanah inceptisol meningkatkan variable bobot segar tajuk (g), bobot kering tajuk (g), bobot segar akar (g), bobot kering akar (g) dan berpengaruh sangat nyata pada variable bobot segar umbi (g) dan bobot kering umbi (g). Tidak terjadi interaksi antara residu pupuk Si-zeolit dan residu Si-arang ampas tebu terhadap karakter agronomi tanaman bawang merah pada tanah inceptisol.

Abtrak (Bhs. Inggris)

The purposes of this research is 1) explain the effect of Si-zeolite fertilizer residues on the agronomic character of shallots on inceptisol soils, 2) explain the effect of Si-charcoal fertilizer residues on the agronomic character of onion plants on inceptisol soils, 3) explain the interaction between Si-zeolite fertilizer residues and Si-charcoal bagasse amendments on the agronomic character of onion plants on inceptisol soils. This research was conducted at the Screen house of the Faculty of Agriculture, Jenderal Soedirman University from August to November 2020. The design used was a Randomized Block Design (RAK), with three replications. The treatment tried includes two factors, namely the type of silica fertilizer residue consisting of zeolite, bagasse charcoal, and Si fertilizer (zeolite + bagasse charcoal). The second factor is the dose of silica fertilizer with a level of 0;5;and 10 g/plant. Observation variables include plant height, number of leaves, number of saplings, number of tubers, fresh weight of header, dry weight of header, fresh weight of tubers, dry weight of tubers, fresh weight of roots, and dry weight of roots. The results showed that the residual treatment of Si-zeolite fertilizer type against the agronomic character of shallots on inceptisol soil increased the number of bulbs per clump. The application of residual doses of Sizeolite fertilizer to the agronomic character of shallots on inceptisol soils increases the variable fresh weight of the header (g), the dry weight of the header (g), the fresh weight of the root (g), the dry weight of the root (g) and has a very noticeable effect on the variable fresh weight of the bulb (g) and the dry weight of the tuber (g). There was no interaction between Si-zeolite fertilizer residues and Bagasse Si-charcoal residues against the agronomic character of onion crops on inceptisol soils.

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