KOMBINASI KAPUR CANGKANG KIJING (Pilsbryoconcha exilis) DAN KAPUR KALSIT PADA PENGAPURAN KOLAM DI LAHAN RAWA UNTUK BUDIDAYA IKAN PATIN (Pangasius sp.)
Daftar Isi:
- Catfish farming in swamp pond is constrained by the low pH value of swamp water. Liming of ponds is needed to increase pH of water and soil. This study aims to determine the best combination dose between mussel freshwaters shells and calcite lime to increase the pH of water, survival rate and growth of catfish (Pangasius sp). The study used completely randomized design (CRD) with 5 treatments and 3 replications. The treatment 100% calcite (P1), 100% mussel freshwaters shells (P2), 25% mussel freshwaters shells and 75% calcite (P3), 50% mussel freshwaters shells and 50% calcite (P4), 75% mussel freshwaters shells and 25% calcite (P5), The dose of lime used was 7.000 kg ha-1 CaO equivalent. The result showed that P4 was the best treatment for increasing swamp water pH from 3.6 to 8.10 and soil pH from 3.6 to 8.03, survival rate 100%, and absolute growth weight 17.19 g, absolute growth length 8.26 cm.