Skripsi
POTENSI ASYSTASIA GANGETICA CAMPURAN CANGKANG TELUR SEBAGAI PUPUK ORGANIK BRIKET DAN PESTISIDA NABATI PADA POLIKULTUR TANAMAN JAGUNG DAN KACANG TANAH
This research examines the potential of Asystasia gangetica, a type of tropical weed, as a base material for producing organic briquette fertilizer and botanical pesticide enriched with eggshell waste in the context of polyculture cultivation of maize (Zea mays L.) and peanuts (Arachis hypogaea L.). The purpose of this study is to evaluate the extent to which this combination of treatments affects various plant growth parameters, damage caused by pests, and the diversity of arthropod groups in agricultural land with a humid tropical climate. The research was conducted at the Experimental Field of the Faculty of Agriculture, Sriwijaya University, using a Split Plot design involving two variables: briquette organic fertilizer dose (0, 100, and 200 grams) and botanical pesticide concentration (5%, 10%, and 15%), which were replicated four times. The results of data analysis using ANOVA showed that the application of briquette fertilizer and botanical pesticides did not have a significant effect on the morphological growth of maize and peanuts (p > 0.05), except for the peanut plant height parameter, which showed a highly significant effect (p < 0.01). The most effective treatment was found in the combination P2A2 (200 g fertilizer and 10% pesticide), which resulted in an average maize plant height of 112.13 cm and peanuts 48.22 cm, as well as the highest number of pods at 47.34 for plant. The results of arthropod identification in the field show that the Diptera group dominates with a proportion of 68%, followed by Orthoptera (15%) and Hymenoptera (8%), with a functional total of 374 phytophagous individuals, 81 decomposers, and 64 natural enemies.
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