Pengaruh Jenis Media Tanam dan Konsentrasi AB Mix Terhadap Pertumbuhan dan Hasil Tanaman Selada (Lactuva sativa L.) dengan Sistem Hidroponik Sumbu
Authors: Amin Rafiq Muhammad , Nurhayati Nurhayati , Hayati Mardhiah 
Published: December 2024

Abstrak. Media tanam untuk hidroponik harus dapat menjaga kelembapan didaerah sekitar akar dan dapat menyediakan unsur hara. Pemberian nutrisi AB mix diharapkan dapat memberikan hasil terbaik. Penelitian ini bertujuan untuk mengetahui pengaruh beberapa jenis media tanam dan konsentrasi AB mix serta interaksi antara kedua faktor tersebut terhadap pertumbuhan dan hasil tanaman selada. Penelitian ini dilaksanakan di Kebun Dayah Terpadu Babul Maghfirah Kuta Baro, Aceh Besar dimulai pada bulan Mei sampai dengan Juli 2022. Rancangan yang digunakan adalah Rancangan Acak Lengkap pola faktorial 3 x 3 dengan 3 kali ulangan. Faktor pertama adalah jenis media tanam terdiri dari 3 jenis yaitu : arang sekam, cocopeat dan rockwoll. Sedangkan faktor kedua adalah konsentrasi AB mix terdiri dari 3 taraf yaitu : 1000, 1250, 1500 ppm. Hasil penelitian ini menunjukkan bahwa perlakuan jenis media tanam berpengaruh sangat nyata terhadap tinggi tanaman selada umur 7, 21, 28 dan 35 HST, jumlah daun tanaman selada umur 7, 14, 21, 28 dan 35 HST (Hari Setelah Tanam) dan lebar daun tanaman selada, berpengaruh nyata terhadap panjang daun dan panjang akar tanaman selada. Pertumbuhan dan hasil tanaman selada terbaik dijumpai pada jenis media tanam cocopeat. Perlakuan konsentrasi AB mix berpengaruh sangat nyata terhadap parameter lebar daun, berat berangkasan basah dan panjang akar tanaman selada, berpengaruh nyata terhadap tinggi tanaman selada umur 28 HST, jumlah daun tanaman selada umur 14 dan 28 HST. Pertumbuhan tanaman selada terbaik dijumpai pada konsentrasi AB mix 1000 ppm. Terdapat interaksi yang nyata antara jenis media tanam dan konsentrasi AB mix tehadap tinggi tanaman selada umur 21 HST. Pertumbuhan dan hasil tanaman selada terbaik terdapat pada kombinasi antara jenis media tanam cocopeat dengan konsentrasi AB mix 1250 ppm.The Effect of Planting Media Type and AB Mix Concentration on Growth and Yield of Lettuce (Lactuva sativa L.) with Axis Hydroponic SystemAbstract. Growing media for hydroponics must be able to maintain moisture in the area around the roots and be able to provide nutrients. AB mix nutrition is expected to give the best results. This study aims to determine the effect of several types of growing media and the concentration of AB mix and the interaction between the two factors on the growth and yield of lettuce. This research was conducted in the gardens Dayah Terpadu Babul Maghfirah Kuta Baro, Aceh Besar starting from May to July 2022. The design used was a completely randomized design with a 3 x 3 factorial pattern with 3 replications. The first factor is the type of planting media consisting of 3 types, namely: husk charcoal, cocopeat and rockwooll. While the second factor is the concentration of AB mix consisting of 3 levels, namely: 1000, 1250, 1500 ppm. The results of this study indicate that the treatment of the type of planting media has a very significant effect on the height of lettuce plants aged 7, 21, 28 and 35 DAP, the number of leaves of lettuce plants aged 7, 14, 21, 28 and 35 DAP and the width of lettuce plant leaves, significant effect on leaf length and root length of lettuce plants. The best growth and yield of lettuce was found in cocopeat growing media. The AB mix concentration treatment had a very significant effect on the parameters of leaf width, fresh weight and root length of lettuce plants, significantly affected the height of lettuce plants aged 28 HST, the number of leaves of lettuce plants aged 14 and 28 HST. The best growth of lettuce plants was found at a concentration of AB mix of 1000 ppm. There was a significant interaction between the type of growing media and the concentration of AB mix on the height of lettuce plants aged 21 HST. The best growth and yield of lettuce was found in a combination of cocopeat growing media with a concentration of AB mix of 1250 ppm.