Peningkatan Kualitas dan Kuantitas Biji Kakao Melalui Intensifikasi Perawatan Kakao, Introduksi Alat Budidaya, dan Pengering Sistem Hybrid

Putat village, Patuk district, Gunung Kidul regency is one of cocoa production center in Yogjakarta. Cocoa bean products in this region have been marketed not only in Yogjakarta but also several areas in Indonesia. In order to support production continuity of cocoa bean productions, to date the farmers face obtacles in cacao plantation maintenance and cocoa beans drying. Thus, this activity aimed to increase quality and quantity of cocoa beans through maintenance intensifications of cacao and introduction of cacao cultivation equipments and cocoa beans drying hybrid system. Partner in this activities were Kelompok Tani Kakao Sido Dadi and cocoa dan chocolate production industry “Joglo Coklat” located in Patuk, Gunung Kidul, Yogjakarta. The activities were conducted in several stages including 1) basic data collection, 2) socialization of cacao plantation maintenance, 3) socialization of cocoa beans drying, 4) introduction of cultivation equipments, 5) contruction of drying chamber, 6) handover of equipment, and 7) evaluation of parnter response. The results of the activity indicated that the provision of information and the introduction of equipment for cacao plant maintenance activities had a positive impact on partners. From the questionnaires, the partners stated the benefits of this activity and the desire for sustainable activities. The introduction of maintenance equipment and cocoa beans drying made it easier for farmers to carry out cultivation, harvest and post-harvest activities of cocoa beans so would be able to improve the quality and quantity of cocoa beans.

EVALUATION OF NUTRIENT STOCKS AND SOME SOIL INDICES OF AGRO-ECOSYSTEM AS AFFECTED BY LONG-TERM MONOCROPPING SYSTEM

Objectives: This study investigates nutrients stock and some soil indices of agro-ecosystem soil as affected by monoculture cropping system (cacao plantation). This was with a view to provide comprehensive understanding of soil nutrient dynamics in the ecosystems due to their different management practices. Methods: The study was carried out in 0.063 ha sample plots, three each in natural forests and cacao plantations adjacent to each other. In each plot, five core soil samples were randomly collected at two depths (0–15 and 15–30 cm), bulked according to depth, air-dried, sieved through 2 mm sieve, and analyzed for soil physicochemical properties using standard methods. One-way analysis of variance was used to test significant mean differences of the soil properties among cacao plantation and natural forest at probability level (p≤0.05) at different soil depth. Results: The results showed that soil physical properties such as particle size distribution, moisture contents, and bulk density; chemical properties such as pH, exchangeable cation, organic carbon, organic matter, phosphorus, and sulfur from natural forest were higher than the soil properties in cacao plantation for both top and subsoil. Soil indices such as soil structural stability index, base saturation percentage, and sodium adsorption ratio were higher in natural forest ecosystem than the soil indices of cacao plantation. Conclusion: From this study, it can be concluded that long-term monoculture cropping system had significant effect on nutrients stock and soil indices. This subsequently might result in permanent soil degradation and productivity.

Exploration and Effectiveness of Trichoderma sp. from Jember and Trenggalek, East Java, Indonesia Cacao Plantation as A Biological Control of Phytophthora palmivora

Fruit rot disease is very damaging to cacao pods, which is caused by Phytoptora palmivora. The attack rate of P. palmivora varies. In Java, losses due to this disease reduce yields by 90 %. P. palmivora is a soil–borne pathogen. It is currently included in the Kingdom Chromista. Control with fungicides is not successful at this time, the alternatives is biologis control with Trichoderma sp. This research used a Completely Randomized Design (CRD) which was arranged in factorial with two factors. The first factor was Trichoderma sp. the second factor was P. palmivora. All treatment combinations were repeated three times. Trichoderma sp. antagonist test to P. palmivora was analyzed using Analysis of Variance (ANOVA) and then further tested using a 5 % BNJ. Trichoderma sp. origin from Jember and Trenggalek districts, East Java, Indonesia were able to act as antagonists against P. palmivora with the highest inhibitory of 78 %. In comparison, the lowest inhibitory was 70 % of isolates from Jember district, East java, Indoe. Characteristics of Trichoderma sp. The origin of Trenggalek Regency and Jember Regency, East Java, Indonesia in inhibiting the growth of P. palmivora has the same species, namely Trichoderma harzianum.

PRESERVING BIODIVERSITY AND AGROECOSYSTEM OF COCOA CROPS

Agroecosystem in cocoa plant was once of the important thing that have to manage intend to make the cacao plantation sustain. Cocoa was the mascot of industrial plant trade in Bali Province including in Tabanan Regency. Cocoa cultivation is almost done by most plantation farmers in Bali. The Bali Government, through the Tabanan Food and Agriculture Office, strongly supports the spread of cocoa cultivation. In 2010, a free seedling assistance policy for farmers was issued in order to obtain uniformity of growth and yield of cocoa plants. The types of cocoa cultivated by farmers vary, so that since 2015 there have been stunting and of cocoa pod rot (CPB). Several studies on cocoa have been carried out, but they have not been able to provide solutions to disease attacks, especially cocoa pod rot. In this regard, this study was conducted to provide solutions in terms of cocoa crop management in order to know how to reduce the percentage of damage to cocoa plants and determine the strategies to manage the Cocoa plant in field. This research shows that the best strategy to reduce the pod rot in cocoa plant is pruning the branch of cocoa. The pruning activity is useful to make the area of cocoa plant well maintained and clean.

KELIMPAHAN POPULASI Helopeltis sp. DAN TINGKAT KERUSAKAN BUAH KAKAO DI KECAMATAN SITIUNG KABUPATEN DHARMASRAYA

ABSTRAKDharmasraya merupakan kabupaten yang berpotensi untuk pengembangan kakao, terbukti dengan meningkatnya luas areal perkebunan setiap tahun. Pengembangan kakao di Dharmasraya dihadapkan pada beberapa kendala yang mengakibatkan produksi kakao rendah, salah satunya adalah serangan kepik penghisap buah kakao (Helopeltis sp.) Tujuan penelitian ini adalah mempelajari kelimpahan populasi dan tingkat kerusakan kepik penghisap buah kakao. Penelitian dilaksanakan di Kecamatan Sitiung Kabupaten Dharmasraya yang terdiri dari tiga nagari yaitu Siguntur, Sitiung dan Gunung Medan. Penelitian dilaksanakan pada bulan November 2018 sampai dengan Januari 2019. Penelitian ini berbentuk survei menggunakan metode Purposive Random Sampling. Penentuan tanaman sampel dilakukan secara sistematis, sehingga terdapat 30 batang tanaman sampel pada satu lahan. Serangga contoh dikoleksi dengan cara hand collecting dan teknik chemical knock down. Kelimpahan kepik penghisap buah kakao yang diperoleh pada penelitian tergolong rendah yaitu 79 individu dengan rata-rata 0,23-0,36 individu/batang. Persentase kerusakan tergolong tinggi terdapat di Nagari Siguntur yakni 81,43% dan terendah di Nagari Gunung Medan yakni 70,36%. Intensitas kerusakan yang tertinggi terdapat di Nagari Siguntur yakni 73,12% dan terendah di Nagari Gunung Medan yakni 68,15%.ABSTRACTDharmasraya is a district that has the potential for cacao development, proven by increasing the cacao plantation area every year. Cacao development in Dharmasraya was faced with several obstacleswhich resulted in low cacao production. One of the obstacles in the cultivation process is (Helopeltis sp.) Therefore,the purpose of this research was to study the population abundance and the damage levels of to cacao fruit sucking bugs. Research was carried out in SitiungSubdistrict, Dharmasraya which consisted of three nagari namely Siguntur, Sitiung and Gunung Medan. The research began in November 2018 to January 2019. This research was a survey using the Purposive Random Sampling method. The sample plants were determine systematically, so there were 30 plant samples in each nagari. Insect samples were collected by hand collecting and chemical knock down techniques. The abundance of cacao fruit sucking bugs was 79 individuals, with averages were 0.23 – 0.36 individual / plant. The percentage of damage was high, where the highest was obtained in Siguntur 81.43% and the lowest was in Gunung Medan 70.36%. In addition, the highest damage intensity was found in Sigunturthat was 73.12% and the lowest in Gunung Medan that was 68.15%.

Sediment Enrichment Ratio and Nutrient Leached by Runoff and Soil Erosion on Cacao Plantation

Soil consevation management system is an activity for diminishing sediment enrichment ratio and nutrient leacheds by water run off and soil erosion processes. The research was aimed to study sediment enrichment ratio and nutrient leached by run off and soil erosion on cacao plantations. Arachis pintoi with strips parallel contour and multiple strip cropping of upland rice or soybean (Glycine max) were planted to improve soil physical characterictic on cacao plantation as a main plant. The expriment were conducted with treatments as 10-15% and 40-45% slopes, 5-7 months and 25-27 months cacao ages (as main plants). As sub plots are T1 as a monoculture which to be cleaning under the plant canopy, T2 as a multiple strip cropping of upland rice or soybean, T3 as a combination of T2 and A. Pintoi strip. The results showed that total N, P2O5, and K2O and organic-C contents in water run off and soil sediments indicated that T3 >T2 >T1 treatment, with the contents of each nutrient: T3 (total N 0.18%; 24.87 mg 100 g-1 P2O5: K2O 15.16 mg 100 g-1), T1 (total N 0.16%, 22.39 mg 100g-1 P2O5, K2O 11.50 mg 100g-1). The total N, P2O5, K2O and organic-C soil contents < accumulation nutrient contents of total water run off and soil sediment transport. All of treathments have sediment enrichment ratios > 1.

Problems Solving On Cacao Plantation By Biomethanization Technology

Indonesia is the third largest exporting cacao country in the world. There are several problems in cacao plantation, either come from insect or fertilizer. In addition, there is energy problem especially in rural area, as ratio of modern energy only 65%. The results showed that biomethanization technology;i.e biogas could solve these problems. Insects which live in cacao pod will be stopped their lifecycles as the cacao pod will be used as an input for biodigester. Sludge that come from biodigester could be used as fertilizer. 5.501.180 kWh electricity will be produced from all fermented cacao pod if it is utilized instead of wasted.

An Integrated Study of Coffee and Cacao Plantation Management in Supporting Tourism-Based Agribusiness in East Java, Indonesia

This research aims to: (1) understand the factors which become the drivers and inhibitors of the implementation of integrated management model of coffee and cocoa plantation, and (2) determine the strategy of integrated management model of coffee and cocoa plantation. The research location is determined using purposive method. The location of the research object is located in Jember Regency, Lumajang, and Malang. The research design is using descriptive and analytical survey method, while the sampling is done using Snowball Sampling method. The data analysis of this research is using: (1) Descriptive Analysis; (2) Revenue Analysis; and (3) Force implementation Analysis (FFA). The research result shows that: (a) The driving factors of the implementation of integrated management model of coffee and cocoa plantation are the variety of agricultural crops (plantation products, agricultural products, and livestock), while the inhibiting factors are weak networks among government institutions and stakeholders; and (b) The strategy of the implementation of management model are: (i) the role and participation of the community as managers; (ii) contribution from government and stakeholders; (iii) specific integrated plantation management; (iv) provision of facilities; (v) clarity of the implication of the model on local communities, tourists, and government. The implementation of the principles model can be operationalized, after it is agreed upon by stakeholders and if the models are ‘community-based’.