Penelitian bertujuan mendapatkan data pertumbuhan dan hasil tanaman cabai merah pada kondisi suboptimal secara terapung dengan berbagai dosis pupuk NPK. Penelitian dilaksanakan di Embung Fakultas Pertanian Universitas Sriwijaya Kecamatan Indralaya Ogan Ilir selama 5 bulan pada tahun 2022. Bahan yang digunakan adalah cabai merah varietas Gada F1, pupuk NPK, tanah jenis alluvial, rakit bambu serta bahan pendukung lainnya. Penelitian disusun berdasarkan Rancangan Acak Kelompok menggunakan satu faktor perlakuan yaitu dosis pupuk NPK yang terdiri dari empat dosis perlakuan, yakni P0 = 0 g NPK/polybag; P1 = 5 g NPK/polybag; P2 = 10 g NPK/polybag dan P3 = 15 g NPK/polybag dan tiga kelompok. Pupuk diberikan satu minggu sebelum tanam. Peubah yang diamati adalah karakter pertumbuahn meliputi tinggi tanaman, jumlah daun, diameter tajuk, panjang buah, diameter buah, berat buah per buah, berat buah per panen, dan Total berat buah per tanaman. Hasil penelitian menunjukkan bahwa tanaman cabai merah secara terapung belum menunjukkan respon dengan penggunaan pupuk NPK. Data tinggi tanaman, jumlah daun dan diameter belum optimal serta terjadi penurunan masa produktif tanaman sehingga frekuensi panen lebih sedikit dan hasil yang diperoleh tidak optimal. Kesimpulan tanaman cabai merah varietas Gada F1 mengalami penurunan pertumbuhan dan hasil jika dibudidayakan secara terapung sehingga masih diperlukan penelitian untuk mendapatkan varietas cabai dataran rendah yang dapat dibudidayakan secara terapung.
Organic Hydroponics is cultivation on a planting medium without soil with a source of nutrients obtained from the decomposition of organic materials by microorganisms. Catfish cultivation wastewater and agricultural waste can be used as an alternative planting medium and a source of nutrients in organic hydroponic cultivation systems. This study aimed to determine the plant nutrient content in catfish culture wastewater added with cow dung, chicken manure, trash fish waste, and catfish waste; and to determine the growth of mustard greens and lettuce which were cultivated hydroponically in a growing medium of catfish wastewater added with cow dung, chicken manure, trash fish waste, and catfish waste. The results showed that the solution of catfish culture wastewater added with catfish waste contained nutrients N 220.0 ppm, P 166.3 ppm K 154.4 ppm Ca 65.9 ppm Fe 4.4 ppm; catfish culture wastewater added with trash fish waste contains 50.0 ppm N; P 10.8 ppm; K 173.4 ppm; Ca 219.4 ppm and Fe 3.2 ppm; catfish culture wastewater added with cow dung contained nutrients N 300.0 ppm, P 293.4ppm K 1026.8 ppm Ca 413.6 ppm Fe 64.9 ppm, while those given chicken manure included N 100.0 ppm; P 76.1 ppm; K 471.1ppm; Ca 299.9ppm and Fe 27.3ppm. While catfish culture wastewater contains 55.2 ppm of N nutrients; P 6.4 ppm; K 7.0 ppm; Ca 14.2 ppm; Fe 0.4 ppm. The growth of lettuce in the growing media of catfish culture wastewater given trash fish and catfish was relatively the same, namely 37.7% and 37.9%, respectively. Meanwhile, the growth of mustard pakcoy grown on planting media given chicken manure (47.6%) was higher than the growth of mustard pakcoy grown on cow dung (33.3%). The addition of 50% ABmix nutrients increased the growth of mustard pakcoy on media that was given chicken manure by 81.7%; pakcoy on media that was given cow dung waste by 74.8%; Meanwhile, the addition of ABmix 50% nutrients increased the growth of lettuce on media that was given catfish meal by 64.4%, and on media that was given trash fish meal by 61.9%. Research shows a high potential for using organic waste as a medium and source of organic hydroponic cultivation fertilizer.
The aimed of this study was to determine the effect of chicken manure application on red chili plants using conventional and floating cultivation techniques. The research was carried out on the experimental farm for conventional cultivation techniques and in research pond for floating cultivation located in the Faculty of Agriculture, Sriwijaya University, Indralaya Campus, Ogan Ilir, South Sumatra with an altitude of 10 m above sea level from July to November 2022. The experiment used a randomized block design with one factor, namely chicken manure (0, 10, 20 and 30 tons/ha) with three replications. While the floating experiment used 200 cm x 100 cm of bamboo rafts. Parameters observed included plant height, number of leaves, crown diameter, fruit length, fruit diameter, fruit weight per fruit, and total fruit weight per plant. Data were analyzed using Analysis of Variance (ANOVA) at the 5% level. The results showed that increasing the dose of chicken manure up to 30 tons/ha in both cultivation techniques increased plant height and number of leaves. Likewise for the number and weight of fruit, obtained at the same dose in conventional techniques, namely 30 tons/ha. However, fruit length and diameter parameters were higher in floating cultivation at all doses of chicken manure treatments. Therefore, it was concluded that the use of chicken manure could increase the growth of chili plants in both cultivation techniques, although the size of the polybags used could not support the growth and yields optimally.
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