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Journal : PERTANIAN TROPIK

Potential Of Bintaro (Carbera Odollam Gaertn) , Amethyst (Brugmansia Candida Pers) And Babandotan (Ageratum Conyzoides L) As A Biopesticide Against Pest Leptocorisa Acuta On Rice Plants Wizni , Fadhillah; Rini, Susanti; Lisdayani
Jurnal Online Pertanian Tropik Vol. 7 No. 2 (2020): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (178.608 KB) | DOI: 10.32734/jopt.v7i2.4322

Abstract

Abstract Rice plants (Oryza sativa) is a crop of the main food commodities in Indonesia. Rice production continues to be improved to meet the needs of the community, however, efforts to increase rice production still faces problems, namely Hama walang sangit Leptorisa acuta.. One alternative to control insect pests Leptorisa acuta relatively safe, inexpensive, and easily obtained is the utilization of botanical insecticides. One of them is by using plants Bintaro (Carbera odollam Gaertn), Amethyst (Brugmansia candida Pers) and Babandotan (Ageratum conyzoides L) vegetable insecticides. This study aimed to determine the effectiveness of Bintaro (Carbera odollam Gaertn), Amethyst (Brugmansia candida Pers) and Babandotan (Ageratum conyzoides L) in controlling the Pest Leptocorisa acuta. This study uses the RAL Non-Factorial with 6 Level of treatment and 5 replications. From the results obtained that the treatment with the use of plants kacubung can suppress the population of pest Leptocorisa cut by 100% by the time of application for 1 day after application. Of this study are expected in the future can use kacubung as insecticides with different pests so that in the future kacubung can be used as a vegetable insecticide that is environmentally friendly, economical, and right on target.
Growth Response of Soybean (Glycine max L Merrill) to NPK Fertilizer Dosage and Distance Planting in the Field Lisdayani; Putri Mustika Sari; Syahman margolang
Jurnal Online Pertanian Tropik Vol. 8 No. 2 (2021): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (268.264 KB) | DOI: 10.32734/jopt.v8i2.6375

Abstract

In The effort to increase soybean production, various treatments can be applied, one of which is cultivation in which spacing between the plants is adjusted to obtain ideal production. Spacing is determined depending on seed growth, soil fertility, season, and the variety of plants. Apart from spacing, the use of compound fertilizer is also very important in the growth and production of soybean plants. One way to reduce production costs and improve the soil and crop yield quality is applying a compound fertilizer such as NPK Mutiara (16:16:16). NPK (16:16:16) fertilizer has a balanced composition of nutrients and dissolves slowly until the end of the growth process. The purpose of this study is to discover the effect of plant spacing and dosage of NPK Mutiara (16:16:16) fertilizer, and the best interaction between spacing and NPK Mutiara (16:16:16) fertilizer dosage, on the growth and yield of soybean plants (Glycine max (L) Merrill). The research was conducted in a farmer’s experimental garden, in Jalan Eka Suka 11, Pangkalan Mansur Village, Medan Johor District, at a height of ± 15 meters above sea level. The method used is a factorial randomized block design (RBD) with the first factor being plant spacing, and the second -factor being NPK fertilizer dosage. The results of the research show that NPK fertilizer dosage and plant spacing both have a significant effect on plant height and the number of branches. The highest plant height, 75.50 cm, was obtained using the treatment J3 (40 cm x 40 cm spacing), compared with the other two treatments. The lowest plant height, 61.08 cm, was obtained using the treatment J1 (30 cm x 30 cm spacing). The highest number of branches was seen in the treatment K3, with 7.00 stalks, while the lowest number of branches was found in the treatment K0, with 6.03 stalks.
The Impact of Liquid Organic Fertilizer on Growth and Crop Production of Melon (Cucumis melo L.) Lisdayani; Candra, Ifan Aulia
Jurnal Online Pertanian Tropik Vol. 9 No. 1 (2022): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (430.788 KB) | DOI: 10.32734/jopt.v9i1.6880

Abstract

Melon (Cucumis melo L.) is one of the most popular fruit commodities in Indonesia, thanks to its sweet, wonderful flavor, as well as its high nutritional content and nutritional value. Consumer demand for melons is very high, both locally and internationally, although the sugar level of this particular melon is not too sweet. A melon (Cucumis melo L.) is a herbaceous annual plant that grows on vines and is a member of the cucumber family. This study aimed to determine the optimum concentration of cow urine for development (Cucumis melo L.). The experiment used a fully randomized design (CRD) with one factor, namely the concentration of 6-level bio urine, namely B0 = 0 percent bio urine, B1 = 10 percent bio urine, B2 = 20 percent bio urine, B3 = 30 percent bio urine, B4 = 40 percent bio urine, and B5: 50 percent bio urine from 100 ml/plant recommendation. The research findings indicated that application of bio-liquid organic fertilizer (POC) to cow urine may increase: plant length, stem diameter, number of male flowers, and number of female flowers with the best 10 percent POC bio-cow urine. Melon growing can produce 10 percent bio-liquid organic fertilizer (POC) from cow urine.
Effect of Fertilizer SP-36 And Kascing Fertilizer on the Growth of Peanuts (Arachis Hypogaea L) Sianturi, Tantri; Elli Afrida; Lisdayani; Mukti Hakim
Jurnal Online Pertanian Tropik Vol. 11 No. 1 (2024): JURNAL ONLINE PERTANIAN TROPIK
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jopt.v11i1.11305

Abstract

Peanut production in Indonesia in 2016 amounted to 570,477 tons and in 2017 decreased by 495,396 tons. One of the important factors in increasing peanut production is fertilization. The application of phosphate fertilizers can also increase crop yields, especially in soils that lack this element. roots and required P. Vermicompost fertilizer contains various nutrients needed by plants such as gibberellins, cytokinins and auxins which play a role in increasing plant height. The purpose of this study was to determine the effect of growth and production of peanuts (Arachis hypogaea L.) on the application of SP 36 fertilizer and vermicompost fertilizer. This study used a factorial randomized block design with factor I giving POC Lamtoro leaves (P) with 4 levels, namely: P0: Control, P1: 200 cc/plant, P2: 300 cc/plant, P3: 400 cc/plant. Factor II Fertilizer application SP 36 (F) with 4 levels, namely: Fo: Control, F1: 25 g/plot, F2: 50 g/plot and F3: 75 g/plot. The results showed that the application of SP 36 fertilizer and the application of vermicompost fertilizer and the interaction of the two factors had no significant effect on the observed parameters of the number of plant branches.