Jurnal Riset Perkebunan

The Effect of Anaerobic Composting Method of Coffee Waste on The Growth of Robusta Coffee Seedlings (Coffea canephora L.)

Dewi Rezki — 2024-09-28

Coffee is one of the plantation commodities that has significant economic value. A factor that needs to be considered in coffee plant cultivation is good planting media composition. This study aims to determine the effect of planting media composition on the growth of robusta coffee seedlings. This study used a Completely Randomized Design with treatments M0= Soil: 100%, M1= Soil: 50% + Coffee Husk Compost: 25% + Rice Husk: 25%, M2= Soil: 25% + Coffee Husk Compost: 50% + Rice Husk: 25%, M3= Soil: 25% + Coffee Husk Compost: 25% + Rice Husk: 50%. The analyses conducted were compost analysis and initial and post-incubation soil analysis. Observation data were analyzed using the F test followed by DNMRT at the 5% level. The research results show that the provision of coffee husk compost and rice husks affects the chemical properties of the soil and the growth of coffee seedlings. The planting media composition of Soil: 25% + Coffee Husk Compost: 50% + Rice Husk: 25% proved to increase the pH of the planting media from 5.5 to 6.6, increase in total N-value from 0.2% to 0.5%, available P from 18.6 ppm to 38.5 ppm and the soil CEC from 7.6 me/100g to 36.6 me/100g. This planting media composition also makes it possible to enhance the growth of robusta coffee seedlings in plant height, stem diameter, number of leaves, leaf width, and root volume. Thus, this planting media composition is a suitable medium for the growth of robusta coffee seedlings.

Effect of Natural Growth Regulators on the Growth of Coffee Seedlings in the Cotyledon Phase

Mismawarni Srima Ningsih — 2024-09-28

Coffee is an important agricultural commodity with increasing global demand, so optimizing the growth of coffee seedlings, especially during the seedling phase, is crucial to increase productivity. The use of natural plant growth regulators offers an environmentally friendly and economical solution. This study aims to evaluate the effect of natural plant growth regulators from onion extract and bean sprout extract on the growth of robusta coffee seedlings (Coffea canephora L.) during the seedling phase. The study was conducted using a Randomized Block Design (RBD) with three treatments, namely control, onion extract, and bean sprout extract. The parameters measured included plant height, stem diameter, and number of leaves for six weeks. Data were analyzed using ANOVA and BNT test at the 5% level. The results showed that both natural plant growth regulators significantly increased the growth of coffee seedlings compared to the control. Bean sprout extract gave the best results for plant height (16.75 cm), while onion extract was superior in increasing stem diameter (4.65 mm) and number of leaves (12.20). Statistical analysis confirmed significant differences between treatments and controls for all parameters. Thus, the use of onion and bean sprout extracts as natural growth regulators has proven effective in increasing the growth of coffee seedlings in the seedling phase, offering an environmentally friendly and economical alternative for optimizing the growth of coffee seedlings.

Growth Responses of Alpukat (Persea americana Mill.) Var. YM to the Application of Vitamin B1 and Banana Leaf Litter Compost

Ismi Auliathul Husna — 2024-09-28

YM avocado is a superior product from Lebak, Banten, which requires sustainable cultivation for optimal growth. This study aims to improve the growth of YM avocado by applying vitamin B1 and banana leaf compost using a two-factor group randomized design. Data were analyzed using ANOVA, DMRT at the 5% level, and linear regression analysis. The factors were vitamin B1, with doses of 0, 15, 30, and 45 mg/l, and banana leaf compost, with doses of 0, 125, and 250 g/plant. The provision of vitamin B1 at a dose of 45 mg/l gave the highest growth results in the parameters of the number of leaves, leaf length-width ratio, plant height, leaf area, and leaf chlorophyll content, while the stem diameter showed the highest growth at a dose of 15 mg/l. Giving banana leaf compost at a dose of 250 gr/plant gave the highest growth in plant height, number of leaves, leaf area, and leaf chlorophyll content, while the dose of 125 gr/plant gave the highest growth in stem diameter parameters. It can be concluded that the provision of vitamin B1 and banana leaf compost can increase the growth of YM avocado plants.

Test of Level of Likes on Fermentation Length and Physical Quality Characteristics of Robusta Coffee After Storage

Eva Rosdiana — 2024-09-29

One of the stages in the wet processing of coffee that can affect its flavor is fermentation. Fermentation is the process of removing the mucilage layer that still adheres to the coffee beans, which results in a distinctive coffee aroma and reduces caffeine content, especially in robusta coffee. After the fermentation process, packaging and storage are carried out. Storage is the stage where raw coffee beans are kept to maintain their quality until the next process. This study aims to determine the effect of fermentation duration on panelists' preference levels and the impact of storage duration on the physical quality characteristics of robusta coffee. This research employs both quantitative and qualitative descriptive methods. The results show that storage duration does not affect the physical quality characteristics of robusta coffee beans. The moisture content parameter after storage was found to be 12.2%, the density parameter averaged 0.691 gr/ml, and the defect value parameter fell into grade 3. The study also shows that different fermentation durations do not significantly affect the panelists' preference levels, with an average score of 3-4,1.

Enhancing Coconut Processing Efficiency: Design and Evaluation of A Cost-Effective Coconut De-Husking Machine

Jide Olusegun Adedipe — 2024-09-30

Coconut (Cocos nucifera) plays a crucial role in agricultural economies, particularly in coconut-producing regions, where traditional de-husking methods are labor-intensive and time-consuming. This study focuses on the design, fabrication, and evaluation of a coconut de-husking machine aimed at improving processing efficiency, reducing labor demands, and increasing throughput. The machine was designed to address key performance factors such as frame stability, blade strength, and spring tension. Testing demonstrated that the machine consistently outperformed manual methods, reducing de-husking time to an average of 96.4 seconds compared to 164.8 seconds for traditional techniques. The machine achieved an efficiency rate of 80%, with a throughput capacity of 0.0086 kg/s, significantly higher than the manual method's 0.005 kg/s. Additionally, the machine's cost, approximately N32,000, makes it accessible to smallholder farmers, offering a practical solution for improving productivity and sustainability in coconut farming. The study highlights the potential for mechanized de-husking to transform traditional practices, reduce labor costs, and contribute to economic growth in coconut-rich regions. Future research should explore further optimization of the machine design and its adaptability to different coconut varieties and moisture levels, ensuring broad applicability in diverse farming contexts.

The Effectiveness of Essential Oils as Vegetable Pheromones Against Cocoa Pests Using The Trap Method

Eka Wahyuningsih — 2024-09-30

Cocoa plants are one of the important commodities in plantation crops. The decreasing cocoa production is caused by several factors, one of which is pest attacks. There are several main pests in cocoa plants, namely, fruit borer pests, fruit sucking pests and lice. Currently, the use of chemical insecticides has been widely studied, causing many residues that can pollute the environment and disrupt the stability of the agro-ecosystem. One alternative that can be used is the use of attractants, namely pheromones derived from plant extracts containing essential oils. The use of pheromones with the trap method is one of the insect trapping techniques that has been widely used in control. The purpose of this study was to obtain the best combination of essential oils as vegetable pheromones to control pests in cocoa plants. This study consisted of six treatments and three replications. Treatment consists of use of vegetable pheromones derived from patchouli oil, cinnamon oil, oil nutmeg, clove oil, control (water) and combination (all treatments).