Uji Dosis Pupuk Organik Cair (Poc) Terhadap Pertumbuhan Dan Hasil Pada Tanaman Jagung (Zea Mays L.)

SALSABILA, SYIFA and Dr. Ir. Setyono Yudo Tyasmoro, M.S (2023) Uji Dosis Pupuk Organik Cair (Poc) Terhadap Pertumbuhan Dan Hasil Pada Tanaman Jagung (Zea Mays L.). Sarjana thesis, Universitas Brawijaya.

Abstract

Tanaman jagung (Zea mays L.) merupakan komoditas pangan yang permintaannya selalu meningkat menyebabkan kecenderungan petani dalam menggunakan bahan kimia dalam budidaya jagung membuat kesuburan tanah menurun. Disisi lain agroindustri tebu menghasilkan limbah vinasse yang memiliki potensi sebagai pupuk organik. Limbah vinasse tidak diperbolehkan dibuang secara langsung karena tidak memenuhi ketentuan pembuangan limbah. Sehingga perlu didaur ulang dengan melihat potensi vinasse yang tinggi akan bahan organik. Berdasarkan hal tersebut tujuan dari penelitian ini adalah mengetahui pengaruh POC berbahan dasar vinasse terhadap pertumbuhan dan hasil tanaman jagung serta mengetahui dosis optimal POC berbahan dasar vinasse. Penelitian dilakukan di lahan percobaan Fakultas Pertanian Universitas Brawijaya di Jalan Kuping Gajah, Kelurahan Jatimulyo, Kecamatan Lowokwaru, Kota Malang dimulai pada bulan Mei hingga September 2022. Alat yang digunakan yaitu gembor, meteran, alvaboard, pasak bambu, drum ukuran 150 liter, gelas ukur, timbangan analitik, kamera dan alat tulis. Sedangkan bahan yang digunakan yaitu sampel tanah, benih jagung hibrida NK 6172, pupuk urea, pupuk SP-36, pupuk KCl, Pupuk organik cair (POC), dan air. Penelitian ini menggunakan rancangan acak kelompok (RAK) dengan 7 perlakuan dan 4 ulangan total 28 petak percobaan. Perlakuan yang dilakukan T1 = Tanpa pupuk; T2 = 100% anorganik; T3 = 100% POC + 75% anorganik (tanpa kalium); T4 = 50% POC + 75% anorganik (tanpa kalium); T5 = 150% POC + 75% anorganik (tanpa kalium); T6 = 200% POC + 75% anorganik (tanpa kalium); T7 = 100% POC. Variabel yang diamati yaitu: pertumbuhan (tinggi tanaman, diameter batang, jumlah daun, luas daun, bobot kering, laju pertumbuhan tanaman), kesuburan (analisis kimia tanah dan analisis serapan hara) dan panen (bobot tongkol jagung dengan kelobot, bobot tingkol jagung tanpa kelobot, bobot pipil panen, dan produksi per hektar). Data hasil pengamatan selanjutnya dianalisis menggunakan analisis ragam (ANOVA). Apabila ditemukan data yang berbeda nyata maka selanjutnya dilakukan analisis DMRT (Duncan’s Multiple Range Test) agar mengetahui perbedaan antara perlakuan. Hasil penelitian menunjukkan perlakuan 100% POC dan 150% POC yang dikombinasikan dengan 75% anorganik (tanpa kalium) memberikan hasil terbaik pada variabel yang diamati dan mengefisiensikan penggunaan pupuk anorganik dibandingkan perlakuan yang lain.

English Abstract

Maize (Zea mays L.) is a food commodity whose demand is always increasing, causing the tendency of farmers to use chemicals in corn cultivation to decrease soil fertility. On the other hand, sugarcane agro-industry produces vinasse waste that has potential as organic fertiliser. Vinasse waste is not allowed to be disposed of directly because it does not meet the provisions of waste disposal. So it needs to be recycled by looking at the high potential of vinasse for organic matter. Based on this, the purpose of this study was to determine the effect of vinasse-based POC on the growth and yield of corn plants and to determine the optimal dose of vinasse-based POC. The research was conducted at the experimental field of the Faculty of Agriculture, Universitas Brawijaya on Jalan Kuping Gajah, Jatimulyo Village, Lowokwaru District, Malang City from May to September 2022. The tools used were watering can, meter, alvaboard, bamboo pegs, 150 litre drum, measuring cup, analytical balance, camera and stationery. The materials used were soil samples, NK 6172 hybrid maize seeds, urea fertiliser, SP-36 fertiliser, KCl fertiliser, liquid organic fertiliser (POC), and water. This study used a randomised group design (RAK) with 7 treatments and 4 replications totalling 28 experimental plots. The treatments were T1 = No fertiliser; T2 = 100% inorganic; T3 = 100% POC + 75% inorganic (without potassium); T4 = 50% POC + 75% inorganic (without potassium); T5 = 150% POC + 75% inorganic (without potassium); T6 = 200% POC + 75% inorganic (without potassium); T7 = 100% POC. Variabels observed were: growth (plant height, stem diameter, number of leaves, leaf area, dry weight, plant growth rate), fertility (soil chemical analysis and nutrient uptake analysis) and harvest (corn cob weight with cob, corn cob weight without cob, harvest pipil weight, and production per hectare). Observation data were then analysed using analysis of variance (ANOVA). If the data were found to be significantly different, then DMRT (Duncan's Multiple Range Test) analysis was conducted to determine the differences between treatments. The results showed that the treatment of 100% POC and 150% POC combined with 75% inorganic (without potassium) gave the best results on the variabels observed and efficient use of inorganic fertilisers compared to other treatments.

Item Type:	Thesis (Sarjana)
Identification Number:	052304
Divisions:	Fakultas Pertanian > Budidaya Pertanian
Depositing User:	Annisti Nurul F
Date Deposited:	11 Jan 2024 02:24
Last Modified:	11 Jan 2024 02:24
URI:	http://repository.ub.ac.id/id/eprint/207882

Text (DALAM MASA EMBARGO) Syifa Salsabila.pdf Restricted to Registered users only until 31 December 2023. Download (4MB)

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