Upaya meningkatkan produksi dan pengembalian kesuburan tanah dapat dilakukan dengan aplikasi pupuk organik kompos asam humat, kiambang, dan pupuk kandang. Penelitian ini bertujuan untuk mendapatkan bagian setek bud chip terbaik, komposisi pupuk organik yang paling efektif, dan interaksi terbaik antara bagian setek bud chip dan komposisi pupuk organik dalam meningkatkan kandungan glukosa, fruktosa, dan sukrosa. Percobaan factorial disusun dalam rancangan acak kelompok dengan tiga ulangan. Faktor pertama yaitu tiga bagian setek antara lain: bud chip bagian pangkal (B1), bud chip bagian tengah (B2), dan bud chip bagian puncuk (B3). Faktor kedua yaitu komposisi pupuk organik perbandingan asam humat:kiambang:pupuk kandang yaitu: tanpa pemberian pupuk organik (P0), 70%:20%:10% (P1), 10%:70%:20% (P2), 20%:10%:70% (P3), 30%:30%:40% (P4), pupuk organik asam humat 100 % (P5), kompos kiambang 100 % (P6), dan pupuk kandang 100% (P7). Data hasil pengamatan dianalisis dengan analisis ragam kemudian dilanjutkan dengan uji BNT pada taraf nyata 5% jika hasil sidik ragam nyata. Hasil penelitian menunjukkan bahwa perlakuan bibit asal bud chip bagian pangkal dan kombinasi pupuk organik 30% asam humat:30% kompos kiambang:40% pupuk kandang menghasilkan perbandingan jumlah kandungan sukrosa:fruktosa paling tinggi dibandingkan dengan kombinasi perlakuan yang lain.
Arbuscular Mycorrhiza Fungi (AMF) is a form of mutualistic symbiosis between fungi PENDAHULUANFungi Mikoriza Arbuskular (FMA) merupakan suatu bentuk simbiosis mutualistik antara jamur dan akar tanaman.Salah satu kemampuan FMA yaitu dalam membantu tanaman menyerap unsur hara terutama unsur
Cocoa pod sucking (Helopeltis spp.) is one of the pests that causes a productivity decrease of cocoa pod in Indonesia. In terms of control, many farmers in Indonesia are still using synthetic insecticides that are not environmentally friendly, so intoxicating yam (Dioscorea hispida Dennts) and tropical whiteweed (Ageratum conyzoides L.) are used as botanical insecticide that are environmentally friendly. The objective of this research is to determine the effect of botanical insecticide that made of intoxicating yam extract, tropical whiteweed extract, and mixed extract of intoxicating yam and tropical whiteweed on the mortality of cocoa pod sucking pests. This research was carried out from November 2020 to February 2021, at the Plant Laboratory II Estate Crop Department, Politeknik Negeri Lampung. The research used a Randomized Block Design (RBD) consisting of four treatments, namely: P0 (control), P1 (intoxicating yam extract), P2 (tropical whiteweed extract), and P3 (combination of both extracts), which were repeated six times. The highest mortality of cocoa pod sucking pests was found in treatment P1 (72.73%). The mortality of cocoa pod sucking pest was caused by extract of intoxicating yam which contains the active ingredients of saponins, alkaloids, flavonoids, and cyanide which enter the digestive system of the cocoa pod sucking pest as stomach poisons, resulting in the death of the cocoa pod sucking pest. Based on the results of the research, it was concluded that intoxicating yam extract is the most potential as botanical insectiside for cocoa pod sucking pest.
Weed control must use the right dose of herbicide so as not to leave a residual effect on cultivated plants and soil. This study ains to obtain the most appropriate dose of herbicide. Herbicide used in this study were methyl methulfuron and acetic acid combined. This study used a randomized block design (RCBD) witch 2 factors, factor A was asetic acid and factor B was methyl methulfuron and there were 12 treatment combinations with 3 replications. This research was conducted in the practicum of the Departement of Plantation Plant Cultivation, Lampung State Polytechnic. The total research plot was 36 experimentals units. The dosage levels levels of methyl methulfuron tested in this study were: 0%, 55%, 75%, and 105%. While the dose of acetic acid is: 0%, 50%, and 70%. Observations made in this study were weed vegetation analysis, weed cover percent, weed dry weight, Summed Dominance Ratio (SDR), and Community Coefficient Value (C). SDR values indicate that Panicum dicotomyflorum weed, Ricardia brasiliensis, Euphorbia heterophyla, and Cyperus rotundus are the dominant weeds. The results of this study indicate that there is no effect on the dose of methyl methulfuron herbicide, acetic acid, and interactions on methyl methulfuron herbicide and acetic acid on weed control in sugarcane fields (Saccharum officinarum L.).
On of the obstacles that resulted in a decrease in palm oil production was the presence of weeds. Controlling need to be done to suppress weed growth. Controlling using a mixture of methyl methulfuron herbicide and acetic acid herbicide is on way to weed control. This research was conducted in Lampung State Polytechnic. This study used a factorial randomized block design with 2 factor and each treatment combination was repeated 3 times. The first factor is the methyl methulfuron herbicide 20% with 3 level doses of 0 g.ha-1, 45 g,ha-1, and 75 g. ha-1 second factor is acetic acid herbicide 20% with 3 level doses of 0 ml.ha-1, 225.000 ml.ha-1, and 315 ml.ha-1. the result showed that the combination of methyl methulfuron herbicide 75 g.ha-1 and acetic acid herbicide 315.000 ml.ha-1 effective weed dry weight up to 5.50 grams at 5 WAA and able to reduce weed cover percent to 8% at 6 WAA. the dominance weed that arises after the application of the methyl methulfuron herbicide and acetic acid is Asystasia gangentica, Paspalum conjugatum , Panicum dichotomyflorum, Stachytarpeta indica, dan Imperata cilindrica.
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