JOGJA! Worldwide, Said Mr
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No. 01 / 11 October 2010 Food availability is becoming an important issue WELCOME TO JOGJA! worldwide, said Mr. Ali Shady , a former president ICID conference in Bali 10 years ago. The man who Yogyakarta, the Treasure of Java came to represent Canada, said that there are a discrepancy between supply and demand for food in Yogyakarta (also called as Jogja or Yogya) is located the world today. He said that a country is not only in the middle of Java Island, and is one of a popular tourist destination in Indonesia, especially for responsible to provide enough food, but also must cultural tourism. The cultural colour of Yogyakarta is have a sufficient stock of food. still obvious because of the temples, traditional buildings, various cultural activities, and a number of Irrigation became an important thing in relation to famous artists. This is accentuated by the presence food availability. Currently, only about 17% total of living tradition and everyday life of Yogyakarta irrigated land in the world and it yield 40% of the community which is art loving and hospitable. world's food source. "Having a conference about irrigation and drainage in Asia is a very important Walking around Jogja, you can see the wealth of thing, because it has major population in the world," pristine Javanese culture, the locals who are so friendly and artists who are making handicraft items. he said. Yogyakarta is heaven of traveling with so much charm that has not been revealed. Yogyakarta is "Irrigation is one of the solution, how to make ready to host more visitors who are eager to enjoy irrigation more efficient," he added. The world its enchanting nature and culture by providing population continues to grow, and of course, food tourist facilities, attractions, guides, and other needs are also increasing. They want more and services. Your visit to Yogyakarta will be welcomed better food. So we need more water and more land. warmly. Begin your adventures and find the In this conference, many people came from different treasures of Java Island in Yogyakarta. countries and backgrounds. They also come with different experiences from their own countries. On this occasion they can discuss, working on group and THE CHALLENGE OF FOOD SECURITY exchange ideas about problems and solutions in their respective countries. "It will help us to know better and apply it in our own country" he said. According to the man who is originally an Egyptian, the key is to exchange information. Two of the most important thing is information and knowledge. With the information we could know something, but with the knowledge we can apply it directly in our real life into something useful. Ali Shady Daily News ICID Jogyakarta - 1 Fuzzy Timer Technique the offshore area of the bay the sediment concentration decreases up to 10 mg/l. The Implementation for Automatic distribution of sediments follows the current Water Level Control circulations induced by tide and river discharge. A fuzzy timer control (FTC) technique was developed Fitri Riandin for application in water level control. FTC is the modification of the general fuzzy logic control (FLC) which have been widely known and been applied in INTERMITTENT IRRIGATION IN SYSTEM various control systems. The FTC was applied in simulation using water balance analysis of weather, OF RICE INTESIFICATION POTENTIAL AS evapotranspiration and land condition information. AN ADAPTATION AND MITIGATION FTC showed good performance in the anticipation of OPTION OF NEGATIVE IMPACTS OF RICE water level fluctuation to maintain water level near the setpoint, but faced difficulty in heavy rainfall CULTIVATION IN IRRIGATED PADDY event especially in heavy rain season. During dry FIELD season, the FTC showed better performance and ability to maintain water level near the desired level. Water availability that nowadays tends to decrease The simulation was conducted using spreadsheet in quality and quantity aspects is in fact in contrary programmed with macro basic language. The with the trend of increasing demand for water. simulation also gave the irrigation and drainage Therefore the effort to improve water use efficiency capacity of 1.3 lt/sec.ha for rainy season and1.6 is necessary in every aspect of life including irrigation lt/sec.ha for dry season, with each performance to support agriculture, especially for paddy index of 11871.5 and 4225.4, which values are the cultivation. Indonesia as an agricultural country has results of optimization during the simulation. 7,49 million hectare (ha) irrigated paddy field. By means of continuous flow irrigation method, 141 Satyanto K.Saptomo, Budi I. Setiawan, billion m3 of water is needed for irrigation during 2 Ahmad Tusi, Marzan A.Iskandar planting period every year or almost 6% of water availability in Indonesia. On the other hand, one of the environmental issues related to agriculture production particularly rice is that paddy cultivation become potential contributor to global warming ESTUARY DYNAMICS OF JAKARTA through methane emission. Intermittent irrigation BAY of System of Rice Intensification (SRI) has a potential to overcome this problem. For this reason research The 3D-numerical model has been applied to has been conducted for four years in various simulate estuary dynamics of Jakarta Bay, Indonesia implementation stages, starting from pot, field, on- include of tidal and river current, and cohesive farm, and tertiary unit. Water inflow-outflow, sediment ransport. Sediment loads comes from 3 climate and methane emission data were collected river mouths i.e. Angke River, Karang River, and in each scope for several cropping season. The result Ancol River. The model was simulated to analyze the shows that intermittent irrigation of SRI has a effect of tidal current and river discharge. A constant consistent trend to have lower water requirement westerly and easterly wind was used as input of the and lower methane emission as it is compared with model to see the influence of monsoonal season. conventional method using continuous flow The numerical results show that the tidal current irrigation. Water requirement was reduced by 36% flows from east to western part of the bay during in on-farm research and 15-33 % lower in a tertiary ebb tide and vice versa during flood tide. The surface unit research. Methane emission was lower by current circulation is dominantly influenced by the 37.5% and global warming potential was lower by tidal current compared with the wind and river 5.7%. discharge effects. High turbidity level was found near the river mouths with the range of 50 to 100 mg/l. Susi Hidayah, Dewi Arifianty Agustina, This high sediment concentration was caused by the Marasi Deon Joubert, Soekrasno effect of sediment load from the river upstream. In Daily News ICID Jogyakarta - 2 500.000 HECTARES ARE WAITING TO growth as well as productivity. In this study, the combinations of irrigating and planting patterns BE IRRIGATED IN NEPAL across these 3 systems were also investigated, and in total there were 36 treatments. Measurements Coming from the Ministry of Irrigation, Mr. were conducted on daily basis in water level, soil Mathura Dangol is one of the delegations from water, draining water, ponding water, irrigation water, and weather parameters such as his country, Nepal. Actually this is the first time temperature, wind velocity and sunshine duration to he joined ICID conference. He came with two calculate potential evapotranspiration by means of other friends from Nepal, and they are from the FAO Penmann Monteith model. department of irrigation. He said that he wants Water balance analysis was carried out to calculate to learn a lot of things about irrigation and equivalent depth of soil water, which was then drainage, because he thoughts that his own compared with measured soil water based on water country needs to develop more about irrigation level data and soil water retention curve. Optimization process was then conducted to find system. daily crop coefficients with the objective to minimize a cumulative different between calculated and Nepal totally had 2,6 million hectares of land, measured soil water depths. The results show that and 1.760.000 hectares are irrigable. By this each reatment produced different temporal crop year, they had 1,2 million hectares of irrigated coefficients but more or less had similar patterns in land, and the challenge they had to face now is the early, middle and late stages of the plant growth. In consequence, temporal crop coefficient is there are still 500.000 hectares of lands remain important to take into account for irrigation planning that haven’t being irrigated. on different system of paddy field especially to earn optimum water efficiency. What’s the problem in the country is the financial. They need a lot of money to develop Hanhan A. Sofiyuddin, Lolly M. Martief, their irrigation system, and now people in Nepal Budi I. Setiawan, Chusnul Arif just take a loan from the bank as the solution for the financial problems. “We also want to see the Sabo Dam Merapi, “ he said. He also said that Jogja is a very nice place. Prambanan, the Most Beautiful Hindu Temple in the World Mathura Dangol Reputated as the biggest and most beautiful Hindhus Temple in Indonesia, and locally known as Roro Jonggrang. Prambanan is the masterpiece of Hindu EVALUATION OF CROP COEFFICIENTS culture from the 10th century. The slender building is towering 47 meters high making it an unsurpassed FROM WATER CONSUMPTION IN beautiful architectural. Prambanan temple has three PADDY FIELDS main temples in the primary yard, namely Vishnu, Brahma, and Shiva. The three temples are a symbol Crop coefficient was evaluated from water of Trimurti in Hindu belief. All of them face east. consumption of various treated paddy fields on the Each main temple has accompanying temple facing objective to find its changes with time as the plant to the west, namely Nandini for Shiva, Angsa to grew.