Electronic Theses and Dissertation

Saat ini dunia sedang dihadapkan dengan masalah perubahan iklim secara global. Salah satu tanaman yang terdampak perubahan iklim adalah selada (Lactuca sativa L.). Penelitian ini mengkaji apakah perlakuan dengan pemberian dosis mulsa dan jenis bahan organik dapat mempengaruhi iklim mikro dan konsentrasi hara makro tanaman selada. Penelitian ini dilaksanakan di Nudira Fresh Green House PT. Nudira Sumberdaya Indonesia, Desa Warnasari, Kecamatan Pangalengan, Kabupaten Bandung, Jawa Barat. Penelitian ini dilaksanakan pada Maret 2022 hingga Agustus 2022. Penelitian ini menggunakan Rancangan Acak Kelompok (RAK) faktorial 4 x 2 dengan 3 kali ulangan. Faktor I adalah ketebalan mulsa dengan dosis 0 ton ha-1, 4 ton ha-1, 6 ton ha-1, dan 8 ton ha-1. Faktor II adalah jenis pupuk organik pupuk kandang dan pupuk kompos masing-masing sebanyak 20 ton ha-1. Hasil penelitian menunjukkan bahwa pemberian mulsa jerami padi pada suhu tanah pada kedalaman 0 cm menunjukkan perlakuan terbaik pada dosis 4 ton ha-1 namun berpengaruh tidak nyata pada suhu tanah 10 cm, 20 cm, konsentrasi hara makro dan bobot hasil daun selada. Jenis pupuk organik berpengaruh tidak nyata pada suhu tanah 0 cm, 10 cm, 20 cm, konsentrasi hara makro dan bobot hasil daun selada. Interaksi mulsa jerami padi dan jenis pupuk organik menujukkan perlakuan terbaik pada dosis mulsa 8 ton ha-1 dan pupuk kandang.

Kata kunci: Pupuk kandang, pupuk kompos, suhu tanah, N, P, dan K

The world is currently faced with the problem of global climate change. One of the crops that is affected by climate change is lettuce (Lactuca sativa L.). This study examines whether treatment with mulch doses and varieties of organic fertilizer can affect the microclimate and macro nutrient concentrations of lettuce. This research was conducted at Nudira Fresh Green House PT Nudira Sumberdaya Indonesia, Warnasari Village, Pangalengan District, Bandung Regency, West Java. This research was conducted in March 2022 to August 2022. This study used a 4 x 2 factorial Randomized Group Design with 3 replications. Factor I was mulch thickness with doses of 0 tons ha-1, 4 tons ha-1, 6 tons ha-1, and 8 tons ha-1. Factor II is the varieties of organic fertilizer manure and compost each as much as 20 tons ha-1. The results showed that the application of rice straw mulch on soil temperature at a depth of 0 cm showed the best treatment at a dose of 4 tons ha-1 but had no significant effect on soil temperature at 10 cm, 20 cm, macro nutrient concentration and lettuce leaf yield. Varieties of organic fertilizer had no significant effect on soil temperature at 0 cm, 10 cm, 20 cm, macronutrient concentration and lettuce leaf yield. The interaction between rice straw mulch and varieties of organic fertilizer showed the best treatment at a dose of 8 tons ha-1 mulch and manure fertilizer. Keywords: Manure fertilizer, compost, soil temperature, N, P, and K