Pertumbuhan Sengon Lokal (Paraserianthes falcataria (L.) Nielsen) dan Produktivitas Padi Gogo (Oryza sativa L.) Varietas Inpago LIPI Go2 dalam Sistem Agroforestri

Sengon (Paraserianthes falcataria (L.) Nielsen) is a fast-growing and widely cultivated species in Indonesia. In addition, sengon is a type that is easy to adapt to the environmental conditions in which it grows. Upland rice (Oryza sativa L.) is a type of rice that is tolerant to drought. Sengon and upland rice in agroforestry can be an alternative in more effective land use. This study aims to measure local sengon growth, determine the productivity of upland rice in Inpago LIPI Go2 variety and light intensity in the sengon 1.5 m x 1.5 m and 1.5 m x 3 m line planting in agroforestry systems. Data analysis was performed by testing variance at the level of 0.05% and if the treatment had a significant effect, it was tested further using the Tukey Test. The results of this study indicate that sengon in the 6 months after planting is not affected by pathway treatment, but line planting treatment has a significant effect on upland rice productivity results. Beside age factor of sengon, it can be several other factors such as pest and disease attacks on sengon or upland rice. Keywords: agroforestry, light intensity, sengon, upland riceSengon (Paraserianthes falcataria (L.) Nielsen) merupakan jenis yang cepat tumbuh dan banyak dibudidayakan di Indonesia. Selain itu, sengon merupakan jenis yang mudah beradaptasi dengan kondisi lingkungan tempat tumbuhnya. Padi gogo (Oryza sativa L.) merupakan jenis padi yang toleran terhadap kekeringan, di sisi lain lahan kering di Indonesia masih banyak yang belum dimanfaatkan secara optimal. Agroforestri sengon dan padi gogo dapat menjadi alternatif dalam pemanfaatan lahan yang lebih efektif. Penelitian ini bertujuan mengukur pertumbuhan sengon lokal dan produktivitas padi gogo Inpago LIPI Go2 yang ditanam pada jalur tanam 1.5 m x 1.5 m dan 1.5 m x 3 m dalam sistem agroforestri. Analisis data dilakukan dengan pengujian sidik ragam pada taraf 0.05% dan jika perlakuan berpengaruh nyata maka diuji lanjut menggunakan Uji Tukey. Hasil penelitian ini menunjukkan bahwa pertumbuhan sengon umur 6 bulan di lapang tidak dipengaruhi oleh perlakuan jalur, namun perlakuan jalur berpengaruh nyata terhadap hasil produktivitas padi gogo. Selain faktor umur sengon, hal tersebut diduga karena beberapa faktor lain seperti serangan hama dan penyakit pada sengon maupun padi gogo. Kata kunci: agroforestri, intensitas cahaya, padi gogo, sengo

Kontribusi Repong Damar terhadap Ekonomi Regional dan Distribusi Pendapatan (Contribution of Repong Damar to regional economic and income distribution)

This research has aims to learn the contribution of Repong Damar to regional economic and income distribution. The data for research consists of primary and secondary data. The secondary data is collected for the analysis of regional economic, and the primary data is used to calculate the income distribution. The analysis of regional economic with Location Quotient (LQ), and Gini Index is used to analysis the income distribution. The result showed that damar sector had become base activities and had positive economic growth at West Lampung . The value of Gini Index is 0.356 for South Pesisir District, 0.300 for Central Pesisir District, and 0.526 for North Pesisir District. The value of Gini Index for Pesisir Krui Region is 0.394. This value shows that Repong Damar had main contributed on income distribution in Pesisir Krui Region

Struktur Vegetasi, Komposisi, dan Serapan Karbon Pekarangan Di Desa Duyung, Kecamatan Trawas, Kabupaten Mojokerto

Pekarangan is one form of agroforestry that is commonly located in front, back, and/or side of the house. The tiered canopy stratification and varying root depths make agroforestry able to prevent global warming. The purpose of this research is to know the vegetation structure, composition, and carbon absorption of pekarangan in Duyung Village, Trawas Region, Mojokerto Regency. Collecting data using purposive sampling methodwhere the work area is divided into 3 zones, that is theclosest (zone A), the middle (zone B), and the farthest zone (zone C) based on distance from the mountain to the village with 3 samples of pekarangan per zone. The result showed that the highest INP value of stake level is coffee (Coffea sp.) at 45%, the pole level is banana (Musa sp.) at 95%, and the tree level is durian (D. zibethinus) at 55%. Diversity index (H’), wealth index (R), and evenness index (E) at stake level have the highest value. Canopy stratification in all pekarangan is strata C and D. The highest biomass value was found in zone A of 229,95 ton/ha or carbon stock of 105,78ton/ha. Keywords: agroforestry, carbon absorption, species composition, vegetation structur

Pengaruh Dosis Pupuk Organik Cair Tanaman Kacang Hijau (Vigna radiata L.) dan Komposisi Media Tanam terhadap Pertumbuhan Bibit Mindi (Melia azedarach L.)

Combination mindi and mung bean is one of agroforestry in community forest. Mung bean waste is a potential organic material that can be used as liquid organic fertilizer. The research aims to test the effect of different mung bean liquid organic fertilizer doses and several media compositions of the mindi growth. This research used Completely Randomized Design (CRD) with two factors. The liquid organic fertilizer of mung bean used several dose, namely 0 ml / liter of water, 200 ml / liter of water, 300 ml / liter of water, and 400 ml / liter of water to each plant. In addition, media compositions that are used, namely: 1. combination of soil, cocopeat and husk, 2. combination of soil, sand, and cocopeat, and 3. combination of soil, sand, and husk. The results showed that treatment of 400 ml liquid organic fertilizer of mung bean per liter of water and combination of cocopeat, soil, and sand produce the best height. Treatment of 300 ml liquid organic fertilizer of mung bean per liter of water and combination of cocopeat, soil, and sand or with mixed media chaff, dirt and sand produce the best diameter. Keywords: Liquid organic fertilizer, media composition, Melia azedarach L., mung bea

Kontribusi Repong Damar terhadap Ekonomi Regional dan Distribusi Pendapatan (Contribution of Repong Damar to regional economic and income distribution)

This research has aims to learn the contribution of Repong Damar to regional economic and income distribution. The data for research consists of primary and secondary data. The secondary data is collected for the analysis of regional economic, and the primary data is used to calculate the income distribution. The analysis of regional economic with Location Quotient (LQ), and Gini Index is used to analysis the income distribution. The result showed that damar sector had become base activities and had positive economic growth at West Lampung . The value of Gini Index is 0.356 for South Pesisir District, 0.300 for Central Pesisir District, and 0.526 for North Pesisir District. The value of Gini Index for Pesisir Krui Region is 0.394. This value shows that Repong Damar had main contributed on income distribution in Pesisir Krui Region

Analisis Strategis Sistem Pengelolaan Repong Damar di Pesisir Krui, Lampung (Strategy Analysis on Management System of Repong Damar at Pesisir Krui, Lampung)

Main objective of this research was to identify dominant factors, which determined management system of Repong Damar (SPRD). SPRD was strategically complex and dynamic. Through system approach with SWOT analysis, AHP and Liker Scale, this research identified its dominant factors. Dominant factors, which determined SPRD goals, are land suitability, ecosystem functions, biodiversity, household economy insurance, trading practice and investment inputs. Furthermore, SPRD sustainability was supported by inheritance institution, indigenous knowledge’s, and ownership, which constitute social status symbol. Development strategy of SPRD was determined by community organizations strength and self-resilience, availability of road infrastructure, and law enforcement on farmers rights

Pertumbuhan Sengon Solomon F2 dan Produktivitas Padi Gogo dengan Jarak Tanam yang Berbeda dalam Sistem Agroforestri

Agroforestri yang mengombinasikan tanaman kehutanan dan tanaman semusim menjadi solusi untuk menyeimbangkan upaya memenuhi kebutuhan pangan dengan upaya konservasi. Agroforestri sengon dan padi gogo memiliki peluang untuk dikembangkan. Upaya untuk meningkatkan produksi sengon dan padi dapat dilakukan dengan menentukan jarak tanam yang tepat. Penelitian ini bertujuan mengukur pertumbuhan sengon solomon F2 (Paraserianthes falcataria (L.) Nielsen) dan mengetahui produktivitas padi gogo varietas Inpago LIPI Go2 (Oryza sativa L.). dengan jarak tanam yang berbeda dalam sistem agroforestri. Hasil penelitian dianalisis menggunakan sidik ragam (ANOVA) satu arah dan dilakukan uji Tukey dengan selang kepercayaan 95% pada hasil yang berbeda nyata. Hasil penelitian menunjukkan bahwa penanaman sengon solomon dengan jarak J1 (1,5 m x 1,5 m) dan J2 (3 m x 1,5 m) tidak berbeda nyata terhadap pertumbuhan sengon solomon. Potensi produktivitas terbesar dihasilkan padi yang berjarak 0,75 m dari sengon solomon pada J1 sebesar 2,58 ton ha-1 dan 1 m dari sengon solomon pada J2 sebesar 2,37 ton ha-1. Kata kunci : agroforestri, jarak tanam, Oryza sativa, Paraserianthes falcatariaAgroforestry combines the component of forestry and annual crops as solution to balance the food needs with conservation efforts. The combination of sengon and upland rice in agroforestry system has opportunity to be developed. Sengon and rice production can be increased by determining the appropriate spacing. This study aims to measure sengon solomon F2 growth (Paraserianthes falcataria (L.) Nielsen) and know the productivity of upland rice Inpago LIPI Go2 (Oryza sativa L.) variety with different planting spaces in agroforestry system. The results of the study were analyzed using one-way variance (ANOVA) and the Tukey test was carried out with a confidence interval of 95% on significantly different results. The results showed that sengon solomon with planting spaces of J1 (1,5 m x 1,5 m) and J2 (3 m x 1,5 m) was not significantly different in sengon solomon's growth. The biggest potential productivity produced by rice with the distance is 0,75 m from solomon sengon of J1 (2,58 ton ha-1) and 1 m from sengon solomon of J2 (2,37 ton ha-1). Keywords: agroforestry, Oryza sativa, Paraserianthes falcataria, planting space

Status Dan Keanekaragaman Fungi Mikoriza Arbuskula di Lahan Agroforestri

Coffee is one of the leading commodities in Indonesia. These plants are usually cultivated with agroforestry systems. The agroforestry system was chosen because it can increase crop productivity. But there are still many factors that can affect productivity such as Arbuscular Mycorrhizal Fungi (AMF). This study aims to analyze the relationship between the number of spores, the percentage of colonization, and the diversity of AMF. The result showed that the highest percentage of colonization and the number of spores found in land 3. The agroforestry component affects the presence of AMF. The percentage of colonization and the number of spores from AMF is generally directly proportional. Diversity of AMF spores morphological type, among others Glomus has 9 forms, Acaulospora has 5 forms, Dentiscutata has 5 forms, Entrophospora has 4 forms, and Gigaspora has 1 form. Keywords: Acaulospora, Dentiscutata, Entrophospora, Gigaspora, Glomu

Pendugaan Potensi Karbon Jenis-Jenis Tanaman Berkayu di Pekarangan Desa Tegalwaru, Kecamatan Ciampea, Kabupaten Bogor

Global warming is an environmental issue that related to the forestry. The strategy to reduce greenhouse gases emissions can be done by mitigation and adaptation. Agroforestry is one of excellent step for mitigation. One example of agroforestry form is home garden. Home garden is a system of land use which is located around the home. This research aims to estimate total carbon stock potential in all of kinds of woody plants in home garden at Tegalwaru Village, Ciampea, Bogor. This research use allometric method. The study was conducted in 30 home gardens of Tegalwaru Village selected by randomly. The results showed that there were 31 species of woody plants. Plants that dominate, namely: rambutans (Nephelium lappaceum), rose apple (Syzygium aqueum), mango (Mangifera indica), and jackfruit (Artocarpus heterophyllus). The total amount of biomass and carbon stocks for woody plants there is 14.98 ton ha-1 and 7.04 ton ha-1. Carbon stocks in woody plants at home garden of Tegalwaru Village is low carbon stocks. Keywords: allometric, carbon potential, home garden, Tegalwaru Village, woody plant

Analisis Pertumbuhan Mindi (Melia azedarach L.) dan Produktivitas Sorgum (Sorghum bicolor L.) Galur G55 dan BIOSS-04 dalam Sistem Agroforestri

needs was decreasing. So it needs a system that maximizes land one of them is agroforestry. Agroforestry will combine mindi tree (Melia azedarach L.) were 2 years old with a spacing of 2.5 mx 2.5 m, and agricultural crops is sorgum strain of SEAMEO BIOTROP development results that G55 is a BMR (Brown midrib) strain and BIOSS 04 which belonging in sweet sorghum. The research purpose is to analyze the growth of mindi on agroforestry systems and monoculture and analyze the growth and productivity of sorghum on agroforestry systems and monoculture. The results showed growth of mindi as high tree, diameter of stem, canopy and root diameter larger on agroforestry than monocultures. Growth and productivity of sorghum in the two strains showed lower on agroforestry cropping pattern. Sorghum G55 and BIOSS 04 strains can grow under mindi trees but can not produce optimally. Keywords: Agroforestri, Melia azedarach, Sorghum bicolo