Electronic Theses and Dissertation

Abstrak. Penelitian ini bertujuan untuk mengetahui pengaruh amandemen tanah, pemupukan NPK dan penyemprotan eco enzyme terhadap pertumbuhan dan hasil sorgum. penelitian ini menggunakan Rancangan Acak Kelompok (RAK) pola faktorial split plot 3x2x2 dengan 3 ulangan, terdapat 36 satuan percobaan, dengan 3 pot perunit percobaan, total 108 pot tanaman. Faktor pertama adalah amandemen tanah (A) yang terdiri atas 3 taraf : A1 = Tanpa amandemen tanah, A2 = Kompos 50 g pot-1, A3 = Biochar 50 g pot-1. Faktor kedua adalah dosis pemupukan NPK Phonska (N) 16:16 ;16 yang terdiri atas 2 taraf: N1 = 600 kg ha-1, N2 = 900 kg ha-1. Faktor ketiga adalah penyemprotan eco enzyme (E) yang terdiri atas 2 taraf : E1 = 1 minggu 1 kali , E2 = 2 minggu 1 kali.Hasil penelitian menunjukkan bahwa amandemen tanah berpengaruh sangat nyata terhadap klorofil daun, berat malai, berat pipilan kering, berat berangkasan basah,dan Potensi hasil. dan berpegaruh nyata terhadap jumlah daun 45 HST, diameter batang, dan pajang malai. Pupuk NPK berpengaruh nyata terhadap klorofil daun, dan berat berangkasan basah. Eco enzyme berpengaruh nyata terhadap berat berangkasan kering. Terdapat Interaksi nyata antara amandemen dan pupuk NPK terhadap jumlah daun 45 HST. Terdapat Interaksi nyata antara amandemen tanah dan Eco enzim terhadap tinggi tanaman 45 HST, pH tanah, berat malai, dan berat berangkasan kering. Terdapat Interaksi nyata antara pupuk NPK dan Eco enzim interaksi nyata terhadap klorofil daun dan pH tanah. terdapat Interaksi nyata antara amandemen, pupuk NPK dan Eco enzim terhadap diameter batang dan potensi hasil. Pertumbuhan terbaik terdapat pada berat berangkasan kering pada perlakuan kompos 50 g pot-1 dengan penyemprotan eco enzyme 1 minggu 1 kali. Hasil sorgum terbaik terdapat pada potensi hasil pada perlakuan biochar 10 ton hektar-1, Pemupukan NPK 900 kg ha-1 dengan penyemprotan eco enzyme 1 minggu 1 kali.
Kata Kunci: Amandemen tanah, NPK, Eco enzyme

Abstract. This research aims to determine the effect of soil amendments, NPK fertilization and eco enzyme spraying on sorghum growth and yield. This research used a Randomized Block Design (RAK) factorial split plot pattern of 3x2x2 with 3 replications, there were 36 experimental units, with 3 pots per experimental unit, a total of 108 plant pots. The first factor is soil amendment (A) which consists of 3 levels: A1 = No soil amendment, A2 = Compost 50 g pot-1, A3 = Biochar 50 g pot-1. The second factor is the fertilizer dose NPK Phonska (N) 16:16 ;16 which consists of 2 levels: N1 = 600 kg ha-1, N2 = 900 kg ha-1. The third factor is spraying eco enzyme (E) which consists of 2 levels: E1 = 1 week 1 time, E2 = 2 weeks 1 time. The results of the research show that soil amendments have a very significant effect on leaf chlorophyll, panicle weight, dry shell weight, wet season, and yield potential. and had a significant effect on the number of leaves at 45 DAP, stem diameter and panicle length. NPK fertilizer has a significant effect on leaf chlorophyll and wet plant weight. Eco enzyme has a significant effect on dry fruit weight. There was a real interaction between amendments and NPK fertilizer on the number of leaves at 45 DAT. There was a real interaction between soil amendments and Eco enzymes on plant height at 45 DAT, soil pH, panicle weight and dry stem weight. There is a real interaction between NPK fertilizer and Eco enzyme, a real interaction with leaf chlorophyll and soil pH. There is a real interaction between amendments, NPK fertilizer and Eco enzyme on stem diameter and yield potential. The best growth was found in the dry fruit weight in the 50 g pot-1 compost treatment with eco enzyme sprayed once a week. The best sorghum yield is found in the potential yield in the biochar treatment of 10 tons hectare-1, NPK fertilization of 900 kg ha-1 with eco enzyme spraying once a week. Keywords: Soil amendment, NPK, Eco enzyme