【製品名（商品名）】
水レタス
【種類】
Lactuca sativa L.
【生産地・卸地】
千葉県千葉市中央区中央, 鵜の森町（株式会社 PFJ）, 茨城県
【名前の由来】
The Japanese name is lettuce, and the etymology is the Latin word “milk”, which means that a milky liquid comes out from the cut end of the calyx. Producers want to grow 'Lettuce’ that consumers will fall in love with. Improvement of early maturing variety “Patapia lettuce （Non-headed）”.
【主な特徴】
It seems that Ogahasu is currently in bloom in Chiba Park (Benten, Chuo Ward, Chiba City). In 1993, it was established as the "city flower" of Chiba City and has become a symbol of the city. It has blossomed from the lotus seeds excavated in 1952 and is celebrating its 70th anniversary this year. One lotus seed was discovered on March 30, 1951, and two lotus seeds were found on April 6, 1951. Ichiro OGA (1883-1965: Born in Kawairi, Okayama City, now) in the peatland of the Ochiai Ruins. I went to university. My major was morning glory, but later I became interested in ancient lotus. From 1917, I spent my research life in Manchuria as a researcher at Minami Manchuria Railway Co., Ltd., and from 1932 I returned to Tokyo. In 1951, he decided to make one of the three ancient lotus seeds excavated from the 2000-year-old stratum in Chiba prefecture bloom in 1951. It seems that it was discovered by Dr. (successful and world-famous) and local elementary and junior high school students. It seems that this fruit was identified as being from the Jomon period about 2000 years ago. And one of these fruits bloomed beautifully on July 18, 1952, the following year, and seems to have awakened from sleep in 2000. This BIG news travels around the world and is featured in "Daily Graph" in Japan and in the American magazine "LIFE" overseas. It is cruel and tougher than the adult world because it is inflexible-The worries and conflicts of my school days, and the shaking of my heart. Hydroponic culture system; I heard that it started with the United States of America and has a history of more than 30 years. Among the many, it is an epoch-making farming method. This is highly evaluated by the NFT（薄膜水耕） method. “Nutrient film technique” - On a flat surface with an inclination of about 1%: A method of cultivating a plant while gradually flowing an aqueous solution of nutrients. At all times, most of the roots come from water and do not supply oxygenium（O）. For example, No nutrients required for crop growth without using soil as Soilless Culture medium: Method of cultivating by giving as a culture solution in which fertilizer is dissolved in water. Soil Culture, drip Fertigation Soil is also used as a medium: A method of supplying inorganic nutrients in combination with liquid fertilizer and irrigation or in a culture solution. Highly acclaimed by the Progressive Gardening Trade Association（SHALLOWATER, State of Texas）. Mobile bench cultivation; Generally, Nutrient solution circulation irrigation method: Rest assured that benches and trays can be washed and sterilized after each harvest. Multistage low volume circulation hydroponic; Circulate nutrient solution using artificial light. Environmental control type that uses the room three-dimensionally. Features and benefits: Crop can be harvested stably all year round regardless of the season. Since it does not use soil, it is less affected by germs and pests. Safe crops can be produced because the use of pesticides is minimal. Always supply optimal amounts of water and nutrients to crops: Crop quality is less affected by soil. Since it is cultivated in Greenhouse（Environmental control; Light, temperature, humidity, CO2 concentration, air flow, etc. Adjusted environmental factors to suit plant growth.）, it is not easily affected by weather conditions. Vegetables and fruits can be produced anywhere, such as in deserts and mountain peaks where the environment is remarkable. By using a multi-stage cultivation method: The yield per site area is high and the yield is relatively high. Automate control of equipment; Automatic control facility: Cultivation is easy even for those with little farming experience. “Water lettuce”, Unlike ordinary lettuce, it has a crispy texture even though it has no bitterness and is soft. It is also popular with small children. In Europe, lactuca sativa, which does not become a ball, has been used. Speaking of lettuce, ball lettuce is famous in Japan. Compared to head lettuce with curled leaves: Since all the leaves are exposed to light, the results show that they are nutritious. “Chuo Ward, Chiba City, Chiba Prefecture”, Located from the southwestern part of the city. Since the city system came into effect on January 1, 1921, developed as a political, economic and cultural center of the prefectural capital. Especially in the downtown areas prefectural office, city hall, etc. Various public institutions of the government are concentrated. Also, centering on JR Chiba Station, which is a railway node: Banks, department stores, office buildings, etc. gather, Many urban functions such as commercial and service functions are concentrated. Eastern district on the outskirts of the ward: Aoba no Mori Park, Urban Greenery Botanical Garden, etc. There are many unique park facilities and green spaces. In addition, the base of the Women's Administration / Improvement of the Social Welfare System, Chiba City Harmony Plaza: Highly developed medical technology / Corresponding to diversification: Opening of hospital Chiba Aoba Municipal Hospital etc. Urban development is active while conserving green spaces. The waterfront is a symbol of the Chiba Prefectural Museum of Art and the port of Chiba: 125 m high Chiba Port Tower with artificial beach: It is crowded with many people on holidays. In addition, large ironworks etc. are located. Form the Keiyo Industrial Zone along the Tokyo Bay. In Kawasaki Town, railway transportation hubs, ports, etc. Soga New City is being developed to take advantage of the characteristics of the district. Among them, maintenance is currently underway. In addition, we will work to improve and enhance the living environment and educational culture. Realization of a town with a fragrant culture that is full of moisture and vibrancy. Nationally designated cultural property historic site : 月ノ木貝塚, Flowing through the city center-It is located on a plateau at an altitude of about 25 m facing a tributary of the Tsukawa River. The shell layer is distributed in the range of 150 m east-west and 200m north-south - “馬蹄形貝塚”. In 1951, for the compilation of the history of Chiba City. Shell mound topographic surveying and archaeological excavation of about 10 m2 in the northeastern part. At that time, it was thought to be a horseshoe-shaped shell mound that opened to the north. Study of distribution（貝層）conducted by the Chiba City Board of Education in 1991: Turned out to be a horseshoe-shaped shell mound that opens to the east. The thickness is 1.2 ~ 1.5 m, and it gradually becomes thinner toward the square（凹地; Indentation, land that is lower than the surroundings）of the center. No shellfish or relics were sprayed in the central depression. Archaeological excavation in 1951: Four pit-houses were found in the middle of the Jyomon Period about 4,500 years ago. 加曽利E式 - With a pottery called, chipped stone axes, partly-ground stone ax, earrings, etc. were excavated. Shellfish include clams, kisago, clams, mactra veneriformis, etc., Shellfish that live in the sand and mud of the shallow sea of the inner bay. At the same time, bones of birds, fish, beasts and vertebrae of whales were also excavated. Most of the clams excavated were small. Large clams are obsessed and only small clams can be collected. Designated as a national historic site March 16, 1988: 台地先端部-主な土地利用大半は, 緑地として保存. 台地北東側は, かつてモーテルが建設. 現在では, 荒地. 台地基部は宅地, 道路で削平. 指定範囲外の南側の畑 / 荒地に貝殻散布. 形状 / 規模馬蹄形（東西150 m, 南北200 m).貝の種類: ハマグリ, アサリ, シオフキ, キサゴ（貝層は高密度）, 土器型式名縄文中期, 後期; 加曽利E, 堀之内, 加曽利B. 発掘調査歴; 1951年, 武田宗久 氏（原始社会, 千葉市月の木貝塚, 日本考古学年報4号）. 人工遺物土錘, 打製石斧, 磨製石斧, 石皿, 凹石. 石鏃; 骨鏃, 耳栓, 猪牙製斧魚骨 / 獣骨, 鯛, 鱏, 鰒, 鯨脊椎骨; 猪. Clams are the main ingredient, and Kisago is mixed with it. Also, the shell layer is extremely dense, which is different from the shell mound on the right bank of the Tsukawa River. On the east side, the tip of a plateau with a thin Nitona-yatsu; Hetano shell mound. In addition, there is a “domen shell mound” in the lowlands below the northwest side of the plateau. Cypraea processing tools, earthen earrings with abalone processed into a circle, etc. Also pay attention to the excavation of the vertebrae of a whale, a rare ornament. 月ノ木砦址 - Complex Ruins Medieval Castle Ruins. 仁戸名, 千葉市ほか. City-designated tangible cultural property building : 伝千葉宗胤五輪塔, 昭和42年, 室町時代, 弁天, 宗胤寺. City-designated tangible cultural property sculpture : 小壁嵌板, 登戸, 登渡神社, 昭和42年, 木造阿弥陀如来坐像, 川戸町, 福寿院, 平成11年, 木造不動明王頭部, 中央, 北斗山 光明寺（Virtually the first owner, Tsuneshige Chiba: It was erected in the first year of the Daiji era (1226) under the name of Tsukidokoroyama Komyoji. 真言宗豊山派; The sixth son of Katsutane Chiba, 妙見寺第十三世権大僧都常覚）, 平成12年, 木造釈迦如来坐像, 仁戸名町, 仁守寺, 平成11年. City-designated tangible cultural property crafts : 梵鐘, 亥鼻, 千葉市, 昭和40年, 千眼神社の鰐口, 亥鼻, 天満宮, 昭和49年. Tangible Cultural Property Ancient Documents : 不受不施派関係古文書, 浜野町, 本行寺, 昭和34年, 原文書, 亥鼻, 千葉市, 平成28年. Tangible Cultural Property Archaeological Material : 七廻塚古墳出土品, 南生実町, 千葉市, 昭和34年, 古瀬戸灰釉四耳壺, 亥鼻, 千葉市,平成13年, 常滑長頸壺, 亥鼻, 千葉市, 平成13年, 内野第1遺跡出土人面付土版, 南生実町, 千葉市, 平成23年, 五十石遺跡出土把手付中空円面硯附盤1点, 中央区, 南生実町, 千葉市, 平成24年, 中鹿子第2遺跡出土土偶, 南生実町, 千葉市, 平成25年. Intangible folk cultural property : 神楽 / 神楽書, 南生実町, 八劔神社神楽連, 昭和37年. 史跡 : 猪鼻城跡（含七天王塚）, 亥鼻他, 千葉市, 千葉大学, 昭和34年, 千葉神社, 中央区, 院内千葉神社, 昭和34年, 千葉寺境内, 中央区, 千葉, 寺町, 千葉寺, 昭和34年, 荒久古墳, 中央区, 青葉町, 千葉県, 昭和35年, 公立千葉病院跡, 中央区,中央, 千葉大学, 昭和36年, 共立病院跡, 中央区, 院内千葉大学, 昭和36年, 森川家累代の墓碑, 中央区, 生実町, 重俊院, 昭和42年.旧川崎銀行千葉支店本館（市指定文化財） : Designed by architect Matakichi YABE. 旧川崎銀行千葉支店 - A building built in 1927. Mitsubishi Bank Chiba after going through the branch, Owned by Chiba City in 1971. Used as Chuo Area Citizen Center until April 1990. Renaissance architecture, one of the few historical buildings. One of the few precious buildings in existence in the city. When constructing the Chuo Ward Office, the building was used as it was at that time. Adopted a preservation method by the sheath temple method. 平成7年, 昭和時期, 中央, 千葉市. The Chiba city is located at 140 degrees 7 minutes east longitude and 35 degrees 36 minutes north latitude. It is about 40 km from the capital Tokyo. Near the central part of the prefecture. In addition, the starting point of the prefecture's trunk roads and railways such as JR and private railways: Furthermore, it is famous as the starting and ending point of information and communication networks. It consists of Six Wards of Chuo, Hanamikawa, Inage, Wakaba, Midori, and Mihama. The area is about 271.78 km2. The climate is relatively warm. In addition, the terrain is covered with the flat land of the lush Shimosa Plateau. Part of it borders Tokyo Bay, with a warm climate and fertile land: We are very blessed with the natural environment such as rich greenery and waterside. One of the characteristics of the material sales business of PFJ Co., Ltd. is the fertilizer select shop. MLSN (Minimum Level for Sustainable Nutrition; Soil Guidelines for the Lowest Level of Sustainable Nutrients: The MLSN guidelines were created in collaboration with ATC and PACE Turf and introduced in 2012.), which is currently attracting worldwide attention: Fertilization such as chemical fertilizers and compost is essential for supplying nutrients to crops, but excessive fertilization has a cost disadvantage. Not only is it large, but it also seems to have an adverse effect on the environment. In order to properly fertilize, fertilization is performed in accordance with the "fertilization standards" of each prefecture, and soil analysis is performed regularly, and the results are obtained. The condition of the field can be grasped by comparing with the "soil diagnosis standard value", and if the fertilizer component is excessively accumulated in the field, the type of fertilizer and the amount of fertilization can be reviewed with reference to the "fertilization reduction standard". Dr. Micah Woods, an American who recommends (important) (sponsored by Asia Turf Center: Dr. visits golf courses and soils around the world, conducts research on soil, and continues to provide useful soil management information in the field. Based on the scientific theory of turfgrass by (I have published several papers in academic journals related to turfgrass, received academic awards more than 10 times, and have been a lecturer innumerable at seminars held in various countries around the world.) In addition, it seems that fertilizers that are optimal for the seasons and soils of Japan and the quality of turfgrass required by players are selected not only from within Japan but also from Europe and the United States from the perspective of directly linking to cost reductions that are indispensable for future Japanese golf courses.
Non-head lettuce is consumed more overseas than 70-80% of head lettuce consumed in Japan. Water lettuce of PFJ Co., Ltd. has been improved based on the wase type Batavia lettuce, which is a non-head lettuce with good taste. The hydroponic cultivation specification has less peculiar bitterness and a strong sweetness.
The special pack container was originally developed to protect the product and keep it fresh. A small amount of vegetables every day Safe for those who ingest
It seems to have excellent storage stability. Considering the environment It seems that it uses recyclable Polyethylene terephthalate (a resin made from petroleum C8H6O4 and C2H6O2, which are chemically reacted under high temperature and high vacuum). After use, it can be used again as a vegetable storage container.
MLSN is a sustainable approach and seems to help reduce inputs and costs while maintaining desirable turf quality and playability levels. When used in combination with climate assessment and growth potential, it seems possible to estimate annual fertilizer demand. In collaboration with Dr. Micah Woods of the Asian Turfgrass Center, the guidelines have been developed through a review of key soil nutrient data from thousands of turf soil samples.
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