Pengaruh Dosis dan Frekuensi Pemberian NPK, TSP, dan Grand K terhadap Serapan NPK dan Hasil Melon (Cucumis melo L.) pada Media Tanam Tanah-Arang Sekam-Kompos

ERDIZYA SATRIA P, Dr. Agr. Cahyo Wulandari, S.P., M.P. ; Dr. Ir. Benito Heru Purwanto, M.P., M.Agr.

2023 | Skripsi | S1 ILMU TANAH

Penelitian dilakukan untuk mengetahui serapan N, P dan K tanaman melon dan hasil tanaman melon dengan dosis dan frekuensi pemupukan yang berbeda. Penelitian dilakukan pada bulan Maret hingga Juli 2022 di Rumah Plastik Percobaan PT. BISI International Tbk, Farm Karangploso, Kecamatan Ngijo, Kabupaten Malang dan Laboratorium Tanah, Fakultas Pertanian, Universitas Gadjah Mada. Adapun varietas yang digunakan yaitu Amanda Tavi. Rancangan percobaan menggunakan Rancangan Acak Lengkap (RAL) dengan 10 kombinasi perlakuan dengan 3 kali ulangan. Faktor perlakuan P0 = Pupuk NPK 15 gr/liter, P1 = Pupuk NPK 10 gr/liter +TSP 5 gr/liter + Grand K 6,5 gr/liter, P2 = Pupuk NPK 15 gr/liter +TSP 5 gr/liter + Grand K 6.5 gr/liter, P3 = Pupuk NPK 20 gr/liter +TSP 5 gr/liter + Grand K 6,5 gr/liter serta faktor N1 = waktu pemupukan 3 hari sekali, N2 = waktu pemupukan 7 hari sekali, N3 = waktu pemupukan 10 hari sekali. Hasil penelitian menunjukkan bahwa padaPada perlakuan dosis NPK 15 gr/tanaman, TSP 5 gr/tanaman dan Grand K 6,5 gr/tanaman dengan waktu pemupukan 3 hari sekali memiliki serapan hara N yang berbeda nyata. Pada perlakuan dosis NPK 10 gr/tanaman, TSP 5 gr/tanaman dan Grand K 6,5 gr/tanaman dengan waktu pemupukan 7 hari sekali memiliki serapan hara P dan K yang berbeda nyata. Pada perlakuan dosis NPK 20 gr/tanaman, TSP 5 gr/tanaman dan Grand K 6,5 gr/tanaman dengan waktu pemupukan 10 hari sekali memiliki nilai kemanisan tertinggi dengan niai 13,2 brix. Pada perlakuan dosis NPK 10 gr/tanaman, TSP 5 gr/tanaman dan Grand K 6,5 gr/tanaman dengan waktu pemupukan 7 hari sekali memiliki nilai berat buah tertinggi yaitu 0,91 kg. Perlakuan dosis NPK 20 gr/tanaman, TSP 5 gr/tanaman dan Grand K 6,5 gr/tanaman dengan waktu pemupukan 7 hari sekali memiliki diameter buah

The research was conducted to determine the uptake of N, P and K of melon plants and the yield of melon plants with different doses and frequency of fertilization. The research was conducted from March to July 2022 at the Experimental Plastic House of PT BISI International Tbk, Karangploso Farm, Ngijo District, Malang Regency and Soil Laboratory, Faculty of Agriculture, Gadjah Mada University. The variety used was Amanda Tavi. The experimental design used a completely randomized design (CRD) with 10 treatment combinations with 3 replications. Treatment factor P0 = NPK fertilizer 15 gr/liter, P1 = NPK fertilizer 10 gr/liter +TSP 5 gr/liter + Grand K 6.5 gr/liter, P2 = NPK fertilizer 15 gr/liter +TSP 5 gr/liter + Grand K 6.5 gr/liter, P3 = NPK fertilizer 20 gr/liter +TSP 5 gr/liter + Grand K 6.5 gr/liter and factor N1 = fertilization time every 3 days, N2 = fertilization time every 7 days, N3 = fertilization time every 10 days. The results showed that in the treatment of NPK doses of 15 gr/plant, TSP 5 gr/plant and Grand K 6.5 gr/plant with fertilization time every 3 days had significantly different N nutrient uptake. In the treatment of doses of NPK 10 gr/plant, TSP 5 gr/plant and Grand K 6.5 gr/plant with a fertilization time of 7 days, the uptake of P and K nutrients was significantly different. In the treatment of the dose of NPK 20 gr/plant, TSP 5 gr/plant and Grand K 6.5 gr/plant with fertilization time once every 10 days had the highest sweetness value with 13.2 brix. The treatment dose of NPK 10 gr/plant, TSP 5 gr/plant and Grand K 6.5 gr/plant with fertilization time once every 7 days has the highest fruit weight value of 0.91 kg. The treatment dose of NPK 20 gr/plant, TSP 5 gr/plant and Grand K 6.5 gr/plant with fertilization time every 7 days has the highest fruit diameter with a value of 10.83 cm.

Kata Kunci : Melon, N, P, K, Serapan Hara