Electronic Theses and Dissertation

Penelitian ini bertujuan untuk mengetahui pengaruh dosis pupuk fosfor dan jarak tanam terhadap pertumbuhan dan produksi tanaman kacang tanah varietas gajah. penelitian ini telah dilaksanakan di lahan petani desa lamgugob, kec. syiah kuala, laboratorium ilmu dan teknologi benih, departemen agroteknologi, fakultas pertanian, kec. darussalam, kota banda aceh. penelitian ini dilaksanakan pada bulan oktober 2024 sampai dengan bulan januari 2025. rancangan penelitian ini menggunakan rancangan acak kelompok (rak) pola faktorial 3 x 2 dengan 4 kali ulangan sehingga terdapat 24 unit percobaan. faktor pertama adalah dosis fosfor yang terdiri atas: 0, 250, dan 375 kg ha-1. faktor kedua adalah jarak tanam terdiri atas: 40 cm x 10 cm dan 20 cm x 20 cm. hasil penelitian menunjukkan bahwa perlakuan jarak tanam berpengaruh sangat nyata terhadap bobot polong basah per plot, berpengaruh nyata terhadap jumlah daun umur 20 dan 40 hst, bobot polong kering per plot, dan bobot biji basah per plot. perlakuan jarak tanam terbaik yaitu 20 cm x 20 cm. perlakuan dosis fosfor berpengaruh sangat nyata terhadap jumlah cabang umur 40, 60, dan 80 hst, bobot biji basah per plot, berpengaruh nyata terhadap jumlah daun umur 60 dan 80 hst, jumlah cabang umur 20 hst, bobot polong basah per plot, bobot polong kering per plot, bobot biji kering per plot, dan potensi hasil per hektar. pupuk fosfor 250 kg ha-1 merupakan dosis optimal dalam mendukung pertumbuhan dan hasil tanaman kacang tanah. tidak terdapat interaksi antara jarak tanam dengan dosis fosfor terhadap pertumbuhan dan produksi kacang tanah.

. This research aims to determine the effect of phosphorus fertilizer dosage and planting distance on the growth and production of Gajah variety peanut plants. The study was conducted on farmers' land in Lamgugob Village, Syiah Kuala District, Seed Science and Technology Laboratory, Department of Agrotechnology, Faculty of Agriculture, Darussalam Regency, Banda Aceh City. The study was conducted from October 2024 to January 2025. The experimental design used a Randomized Block Design (RBD) with a 3 x 2 factorial pattern and four replications, resulting in 24 experimental units. The first factor was phosphorus dose, consisting of: 0, 250, and 375 kg ha-1. The second factor was planting distance, consisting of: 40 cm x 10 cm and 20 cm x 20 cm. The results showed that the planting distance treatment had a highly significant effect on wet pod weight per plot, a significant effect on the number of leaves at 20 and 40 days after planting (DAP), dry pod weight per plot, and wet seed weight per plot. The best planting distance treatment was 20 cm x 20 cm. Phosphorus dose treatments had a highly significant effect on the number of branches at 40, 60, and 80 days after planting, wet seed weight per plot, a significant effect on the number of leaves at 60 and 80 days after planting, the number of branches at 20 DAP, wet pod weight per plot, dry pod weight per plot, dry seed weight per plot, and yield potential per hectare. Phosphorus fertilizer at a rate of 250 kg ha-1 is the optimal rate to support peanut growth and yield. There is no interaction between planting distance and phosphorus rate on peanut growth and production.