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Record breaking tomato yields at Japanese IGH project
The harsh summer climate in Japan also makes it very tough to grow tomato through the summer. Summer starts from rainy weeks in June to July and then suddenly brings hot and humid environment, in which it is quite hard for tomato plants to maintain good condition. Due to the high humidity climate it is not easy to bring air temperature down in the greenhouse.
Average tomato production in Japan is around 20-25kg/m2. Recently more and more motivated growers are learning from the advanced Dutch technology and are investing in hydroponics systems, climate control systems, fogging systems, CO2 dosing etc. to improve production level.
The Innovative GreenHouse (IGH) in Toyohashi city is a practical research project initiated in 2012 led by Science Create Corporation, local government, university and private companies participating to achieve a goal of tomato production of 50kg/m2 in high-tech greenhouse. Ishiguro Nozai, a part of Inochio Holdings Inc., is one of the core member companies that perform daily crop work and conduct research in the greenhouse.
The IGH project is equipped with modern technologies to overcome these challenges and achieve high production with low energy input per kilo tomato. It is a 1.000m2 semi-closed greenhouse without roof vents, which allows maximum sunlight into the greenhouse. To overcome the hot summer, the greenhouse has internal and outer screens, pad & fan cooling and heat pump cooling system. For humidity control, it is equipped with a misting system. To save energy in winter, double layered (diffuse) ETFE plastic is covered and heat pump heating helps to reduce the use of oil. In the climate room, air is mixed to the desired condition and distributed to the greenhouse from an air tube under the gutter.
Advanced Dutch technology helps to achieve this goal. Worldwide automation supplier Hoogendoorn makes it possible to control the aforementioned sophisticated systems efficiently with their reliable, flexible and user-friendly iSii process computer. On top of standard climate sensors, PAR sensors, plant temperature sensors and Aquabalance (grow scale with drain measurement) of Hoogendoorn were installed to get better understanding of what is happening at plant level.
Other Dutch companies such as Van der Knaap for Forteco coco slabs and Van Iperen for high quality fertilizers support the project too.
In the first crop year, the project team with almost no experience of growing tomato faced many challenges and resulted with a sellable production of 41.49kg/m2. The team had frequent discussions with the research members, consultants and growers to improve the production. In the second year, the team achieved the initial goal with a production of 50.6kg/m2. This achievement was remarkable news and was picked up by newspapers and TV news. For the third year, tomato plants were planted in December 2014 and the team is working hard to get a higher result.
Ishiguro Group is a leading total horticultural supplier in Japan providing a wide range of products and services; greenhouses, technical installation, crop protection products and plant materials including own bred chrysanthemum varieties. Ishiguro Nozai is a Hoogendoorn partner in Japan since 2010. Hoogendoorn was introduced to Japanese market not so long ago, however Ishiguro already installed numerous Hoogendoorn climate computers from the South to North of Japan and they are working on several large scale projects this year.
Hoogendoorn Growth Management is a worldwide innovator in horticultural automation. With an office in China since last year, Hoogendoorn is able to provide local maintenance service, technical support and training in the Asian market. Recommendations and solutions in the field of automation, can be fully aligned with customer’s requirements. By providing user-friendly software in i.e. the Japanese language, customers are able to use the functionalities optimally to achieve higher production. Together with partner Ishiguro Nozai, Hoogendoorn’s aim is to contribute to a more innovative and sustainable development of greenhouse horticulture in Japan.
For more information
Inochio Holdings Inc.
146 Wakamatsu, Wakamatsu-cho,
Toyohashi, Aichi 441-8123, Japan
For more information
Hoogendoorn Growth Management (main office)
3131 HX Vlaardingen
Tel: +31 (0)10 460 80 80
Fax: +31 (0)10 460 80 00
Hoogendoorn Asia (office Asia)
Jingchao Building Rm 901, 903
No 5 Nongzhanguan South Rd
Tel: +8610 65016548
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