Pemetaan Kawasan Lahan Pertanian Pangan Berkelanjutan di Kuta Utara dan Mengwi Berbasis Penginderaan Jauh dan Sistem Informasi Geografis

Mapping of Sustainable Food Agricultural Land at North Kuta and Mengwi Districts Based on Remote Sensing and Geographical Information System. Sustainable Food Agricultural Land (LP2B) is a field of agricultural land designated to be protected and developed consistently in order to produce staple food for national food independence, resilience and sovereignty. The Badung Regency Government has determined the area and location of LP2B but it has not been accompanied by a spatial information map. This study aims to map subak rice fields in 2019 as well as mapping of LP2B based on the physical conditions of the area and the environment in North Kuta and Mengwi Districts based on remote sensing and GIS. The method used consists of image interpretation, field survey and numerical classification. The results showed that the distribution of subak rice fields in North Kuta and Mengwi Districts was 4967.22 ha. The distribution of rice fields in North Kuta District is 850.15 ha and in Mengwi District is 4117.07 ha. In the classification of LP2B areas, the recommended area is model 1 (234.88 ha), model 2 (939.76 ha) and model 3 (2048.63 ha). The recommendation areas are in model 1 (1489.91 ha), model 2 (1101.52 ha) and model 3 (2047.53 ha). The conditional recommendation area is in model 1 (2969.50 ha), model 2 (2048.49 ha) and model 3 (873.39 ha). Not recommended area in model 1 (270.81 ha), model 2 (875.33 ha) and model 3 (0 ha).

Strategi Peningkatan Efektivitas Masyarakat Peduli Api (MPA) Dalam Pengendalian Kebakaran Hutan di Provinsi Bali

Strategy For Improving Effectiveness of Fire Care Society (MPA) in Control of Forest Fire in Bali Province. Land and forest fires seem to be an annual disaster in Indonesia. The Ministry of Environment and Forestry is initiated to form Fire Care Community Groups, called Fire Care Society (MPA). MPA in Bali has been established since 2012. The study is needed to determine the community perception who live around the forest areas, to determine the effectiveness of MPA, and to analyzed strategic increases the effectiveness of MPAregarding forest fires controlling. Research data has been collected through a closed questionnaire to compile the respond of respondents in the google form. The respondent consisted of MPA member and non-member and related stakeholders. The types of data that been collected include respondent’s perceptions, MPA participation, and implementation of Perdirjen PPI number 3, 2018. These data then analyzed with the SWOT method. The results showed that the MPA and non-MPA members have positive perception of natural factor and human behavior as a factor of forest fires. The highest value of MPA’s participation in fires-fighting is 3.71 and participation influenced by environmental factors valued at 3.84. While the implementation of Perdirjen PPI decree is 66.39%. The SWOT analysis shows the MPA in progressive strategic S-O. So this study concludes that the MPA hasn’t been fully effective. The effectiveness can be improved by providing adequate support through clear regulations, budget allocations, and increasing human resource capacity.

Pengaruh Abu Vulkanis Gunung Agung dan Pupuk Kompos terhadap Beberapa Sifat Tanah dan Hasil Kacang Tunggak (Vigna unguiculata (L.) Walp.)

The Effect of the Mount Agung Volcanic Ash and Compost on Soil Properties and Yield of Tunggak Nuts (Vigna unguiculata (L.) Walp). The purpose of this study was to determine the effect of giving volcanic ash and compost as a soil amendment. The design used was a factorial randomized block design. The volcanic ash factor consisted of 3 levels: A0 = no volcanic ash, A1 = 15% volcanic ash and A2 = 30% volcanic ash. The compost factor consisted of 3 levels: K0 = without compost, K1 = 10 tons of compost ha-1, and K2 = 20 tons of compost ha-1. The combination treatments was repeated 3 times so that there were 27 observation units. Several parameters of soil properties and yield of tunggak nuts were studied to determine the effect of volcanic ash and compost as soil amendments. The results showed that the interaction between the treatment of volcanic ash and compost on the soil and plants was not significant, while the single treatment of compost had a significant effect on the growth and yield of tunggak nuts. The treatment of volcanic ash has not shown a significant effect, both on soil and on plant growth and yield.

Respon Produksi dan Kualitas Buah Salak Gula Pasir (Salacca zalacca var. Gula Pasir) terhadap Dosis Pupuk Hayati Mikoriza

Production and Quality of Salak Gula Pasir (Salacca zalacca var. Gula Pasir) in Response to Application of Dosages of Mycorrhiza Biofertilizer. Mycorrhiza is a fungus that live symbiosis mutualism with the root of the plant. Mycorrhiza has several benefits that improve the soil structure an increase the absorption of nutrients and water for plant. This research aimed to know response of production and quality of salak gula pasir (salacca zalacca var. Gula Pasir) fruit to dose of mycorrhiza biofertilizer application. This study used a randomized block design (RBD) with 4 levels of mycorrhiza biofertilizer dosages, i.e. 0, 50, 100, and 150 spores per 500 g of carrier media. Each treatment was repeated 10 times. The results showed mycorrhiza dose of 50, 100, and 150 spores per 500 g carrier media increase the amount of fruits bunches in each plant, the sweetness level of fruit and root infections/colonization by mycorrhiza.

Pengaruh Jenis Dedak dan Turunan Benih terhadap Pertumbuhan dan Hasil Jamur Tiram Merah (Pleurotus flabellatus)

The Effect of Bran Type and Seed Derivatives on The Growth and Yield of Red Oyster Mushroom (Pleurotus flabellatus). Jenis dedak dan turunan benih merupakan faktor yang berperan terhadap pertumbuhan dan hasil jamur tiram merah (Pleurotus flabellatus). Jamur tiram dapat tumbuh alami atau dapat memanfaatkan media tanam serbuk kayu yang disebut baglog. Tujuan penelitian ini untuk menemukan jenis dedak, turunan benih dan kombinasi yang terbaik terhadap pertumbuhan dan hasil jamur tiram merah. Perlakuan terdiri atas dua faktor yang didesain dengan rancangan acak kelompok (RAK). Faktor pertama adalah jenis dedak yang terdiri atas dedak beras putih, dedak beras merah dan dedak gandum. Faktor kedua adalah turunan benih yang terdiri atas benih F2, benih F3 dan benih F4, semua perlakuan diulang lima kali. Hasil penelitian menunjukkan adanya pengaruh interaksi antara perlakuan jenis dedak dan turunan benih pada setiap variabel yang diamati, kecuali pada panjang tangkai tudung pada panen kedua dan keempat, diameter tudung pada panen pertama dan keempat. Jenis dedak beras merah dan turunan benih F2 menghasilkan berat segar jamur per baglog setiap panen tertinggi dari panen 1, 2, 3 dan 4 masing-masing yaitu 66,59 g, 64,77 g, 50,30 g dan 36,34 g. Jenis dedak beras merah dan turunan benih F2 memberikan hasil total panen berat segar jamur per baglog tertinggi yaitu 217,99 g.

Database Sumberdaya Lahan Pertanian Pangan Berkelanjutan Berbasis Remote Sensing dan Sistem Informasi Geografis di Subak Temaga Kecamatan Denpasar Timur

Database of Sustainable Food Agricultural Land Resources Based on Remote Sensing and Geographical Information System at Subak Temaga East Denpasar Subdistricts. Subak Temaga doesn’t yet have a database according to Government Regulation No. 25 of 2012 concerning Information System for Sustainable Food Agriculture Land (SFAL). A geospatial-based database needs to be compiled to implement these regulation. The research aims: compile a database of artificial resources, agricultural resources, land resources and human resources to support SFAL in Subak Temaga, create land ownership maps in Subak Temaga, compile an information system of SFAL and land ownership based on remote sensing and Geographic Information System (GIS). This research uses a survey method to obtain primary data, then doing the mapping to compile the information system based on geospatial. The research results: artificial resources (irrigation, jogging track/farm road), land resources (soil family, landform, slope, rainfall, land suitability, soil fertility), agricultural resources (types of farm commodities, productivity, agriculture tools and machinery, cropping pattern, types and dosage of fertilizer), human resources (name, address, age, last education, farmer status, ownership status, ownership large and boundary, profit-sharing system). Farmer status consists of 56 owner farmers (30,9%) and 125 sharecropers (69,1%). Land ownership status consist of 432 freehold polygons (92,7%) and 34 non freehold polygons (23.8%). Remote sensing is used to determine the boundaries of land ownership, GIS is used to compile a geospatial-based information system for LP2B and land ownership.

Pemanfaatan Biochar sebagai Pembawa Rhizobium terhadap Pembentukan Bintil Akar dan Hasil Tanaman Kedelai (Glycine max L. Merril)

The Utilization of Biochar as a Carrier of Rhizobium for the formation of root nodules and Yield of Soybean (Glycine max L. Merril). This study aims to determine the effect of the type of raw materials and particle size of biochar as a Rhizobium carrier on the formation of nodules in soybean plants. This research was conducted from September to November 2020 at the Experimental Station and Laboratory of Soil and Environmental Sciences, Faculty of Agriculture, Udayana University. The research design used was a randomized block design with nested patterns with 2 factorials and 3 replications. The treatment factors consisted of B1 = bamboo biochar, B2 = albasia wood biochar, B3 = corncob biochar, B4 = young coconut skin biochar, P1 = (0,15-0,50 mm), P2 = (>0,50-1,68 mm), P3 = (>1,68-3,36 mm). The parameters observed included effective nodule, nodule size, total bacterial population, ammonium, nitrate, and plant yield. The result of the analysis showed that the type of biochar raw materials had a very significant effect on the parameters of effective nodules, nodules size, total bacterial population and plant yield, but had no significant effect on soil chemical parameters. The treatment of biochar particle size had a very significant effect on the parameters of effective nodules, total bacterial population, and plant yield, and had a significant effect on the size of nodules, but had no significant effect on soil chemical parameters. The conclusion of this study is that the type of raw material for albasia wood biochar is effective as a Rhizobium carrier, which is indicated by the high number of effective nodules, nodules size and total bacterial population of 0,15-1,68 mm particles.

Perbedaan Tinggi, Jumlah Daun, dan Diameter Batang Tanaman Jagung (Zea mays L.) pada Sistem Agroforestri Penanaman Lorong (Alley Cropping) dan Tumpang Sari di DAS Mikro Desa Tukad Sumaga, Kecamatan Gerokgak, Kabupaten Buleleng

Differences in Height, Number of Leaves, and Stem Diameter of Corn (Zea mays L.) in Alley Cropping and Intercropping of Agroforestry Systems at the Micro Watershed of Tukad Sumaga Village, Gerokgak District, Buleleng Regency. Degraded land as a result of land conversion has a very bad impact on the agro-ecosystem. Land conversion caused by the increasing needs of the population. The majority of the livelihoods of the people in Tukad Sumaga village are farmers. The availability of forage is very important to be maintained. Corn plants, in addition to their production in the form of corn, forage fodder on corn plants are very important for the availability of cattle feed. This research was conducted on 28 DAP maize (Zea mays L.) in alley cropping system and intercropping in the micro watershed of Tukad Sumaga Village. The results showed that the highest average plant height, leaf number, and corn stalk diameter were found in the alley cropping system namely 1.03 m, 7.31, and 1.59 cm. There was no significant difference between the height of corn plants in alley cropping and intercropping systems. There is a significant difference between the number of leaves and the diameter of the stems of maize in alley cropping and intercropping systems.

Pengaruh Kemiringan Lereng terhadap Kerusakan Tanah di Giritontro, Wonogiri

The Effect of Slope Gradient of land on the Soil Damage in Giritontro, Wonogiri. Soil degradation is one of the problems in agriculture that affects the level of quality and carrying capacity of the soil for certain land uses. This study aims to analyse the status of soil degradation, the effect of slope, the determinant factor, and recommendation for land management.It was conducted in Giritontro District, Wonogiri Regencywith survey methods by field verification, taking soil samples and laboratoryanalysis based on Regulation of The Government of Indonesia Number 150 of 2000. Analysis unit is land map unit (LMU) which obtained from an overlay of mapssoil types, slope, rainfall, and land use. There were 12 LMU, and repeated 3 site samplings in each it. The result shows that the status of soil degradation was classified as slightly degraded (R.I) in all area research of 5.016.37 ha. The slope has a very significant effect on soil degradation. Slope 26-40% has significant highest score of soil degradration. Determinant factors were soil bulk density and porosity, therefore giving organic matter and optimizing tillage were recommended to improve land quality.

Pengaruh Ukuran Biochar Bambu dan Dosis Pupuk Urea terhadap Efisiensi Pupuk dan Hasil Tanaman Sawi Hijau (Brassica juncea L.) pada Tanah Berpasir

The Effect of Bamboo Biochar Size and Urea Fertilizer Dosage on Fertilizer Efficiency and Yield of Green Mustard (Brassica juncea L.) in Sandy Soil. Biochar is charcoal produced from incomplete combustion (carbonization). Biochar is a soil amendment agent that has long been known in agriculture which is useful for increasing soil productivity. This study aims to determine the effect of bamboo biochar size and urea fertilizer dosage on the efficiency of urea fertilizer and yield of green mustard (Brassica juncea L.). This research was conducted from May 2020 to September 2020 at the Experimental Garden of the Faculty of Agriculture, and at the Laboratory of Soil and Environmental Sciences, Faculty of Agriculture, Udayana University. The research design used was a completely randomized design (CRD) with 2 factorials and 3 replications. The treatment factors consisted of P0 = 0kg urea (control) (0 grams / pot), P1 = 100kg urea / ha (0.2 grams / pot), P2 = 200kg urea / ha (0.4 grams / pot), P3 = 300kg urea / ha (0.6 gram / pot), B1 = 0.25-2.00 mm, B2 = 2.38-2.83 mm, B3 = 2.83-3.36 mm. The parameters observed were levels of ammonium, nitrate, soil pH, microbial population, soil respiration, crop yields including fresh weight and oven dry weight of the plant. The results of the analysis showed that the effect of biochar and urea fertilizers interacted very significantly with the parameters of the microbial population and had no significant effect on the parameters of ammonium, nitrate, soil pH, soil respiration, plant fresh weight, plant dry weight, root fresh weight, root dry weight and efficiency. fertilizer. Biochar treatment has a significant effect on biological factors and fertilizer treatment affects soil chemical properties, crop yields are influenced by a single factor.