solar gable fan

solar gable fan

Green House & Screenhouse

In the year 2011, it was time farmers in Indonesia to develop its commercial vegetable production and efficient, to meet the market demand that does not matter whether rainy or dry season.

Especially this year, China's market is aggressive free entry to Indonesia, what should we do. For my skills, this is the year of manufacture Greenhouse must already have a standard that can be accounted for by technology and function.

I welcome, the Department of Agriculture who has tried to make the proposed SNI (Indonesia Nasional Standard) Greenhouse (screenhouse & House plants), both farmers and intansi expected to be built Greenhouse not medesign and made carelessly without taking into account technical and appropriate,.

I, as Team One author proposed SNI (Indonesian National Standard) Greenhouse ("Building & House Plants Kasa) tried to describe how the Greenhouse towards SNI.Standar standard is expected to be used as a guide for producers and consumers in building a screen house for seeding and cultivation of horticultural crops.

Classification

Home screen can diklasifikan:
a.berdasarkan types of construction materials, namely:
1) Houses gauze with metallic construction materials
2) Houses mesh with non-metallic construction materials (wood or bamboo)

b.berdasarkan roof forms, namely:
1) Home screen with a triangular roof shape (gable)
2) Home screen with a flat roof (flat)
3) Home screen with roof forms a half circle (quonset)
4) Home screen with a roof bow (arch)
5) Home screen with an uneven roof forms arc (uneven arch)
6) Home screen with a triangular roof shape (gable) canopy.

c.berdasarkan square footage of buildings, namely:
1) house a small screen, if the building area of less than 60 m²
2) Home screen is, if the building area of 60 m² - 200 m²
3) house big screen, if the building area of more than 200 m²

In addition to construction quality requirements Houses Building Plant (Screen House, Houses Refuge, House Plants), Building Houses Plants "Greenhouse" must meet the suitability of micro-climate inside the greenhouse, including temperature, humidity, temperature difference, the intensity of sunlight and Ultra Violet rays (UV) .

Temperature difference udaragreenhouse construction

a.The Air temperature performed with a standard measuring tool aspirated thermometer (temperature sensor is not influenced by the accumulated heat of direct sunlight)

b. The air temperature  inside and outside the home screen is measured simultaneously every hour from 08.00 until 17.00 hours when the air condition is very bright and not blocked by clouds (the use of data logger to record temperature or other measuring instrument which is equivalent.)

c.Sensor air temperature is placed at three points in the home screen that represents the condition of the room screen house at the position (1.5 - 2) m from ground level, and 1 point outside the home screen.

d.calculation difference in the results of measurements of air temperature inside and outside the screen house.

e. deferend peraverage temperature is the overall average temperature difference measurement data, while the maximum temperature difference is determined by the highest value data.

Different relative humidity (RH) air

a. Measure air temperature using a standard measuring instrument aspirated wet and dry bulb thermometers (RH sensor is not influenced by the accumulated heat of direct sunlight)

b.Kelembaban relative air inside and outside the home screen simultaneously measured every hour starting from 08.00 till 17.00 hours when the air condition is very bright and not blocked by clouds (the use of RH data logger to record the highly recommended)

c.Sensor dry bulb and wet bulb thermometers placed at three points in the home screen that represents the condition of the room screen house at the position (1.5 - 2) m from ground level, and 1 point outside the home screen.

d. difference RH measurements inside and outside the screen house

RH e.average is the overall average difference RH measurement data, while the maximum is determined by the difference RH highest value data.

Decrease in light intensity

a. global sunlight intensity is done by using a solar pyranometer instrument in units of W / m²

b. two solar pyranometer instrument for measuring the intensity of the sun penetrating power due to the influence of screen house mainly cover plastic roof

c. measure mounted vertically (perpendicular) with height (2-3) m from the soil surface, both inside and outside the home screen

d.conducted simultaneously on the air condition is very bright, hot, cloudless and every hour from 08.00 until until 17:00

e.decrease in light intensity due to the cover mesh / plastic is calculated using the following equation.

ΔIs = (Ii-Id)
-------- X 100%
Ii

Description:
ΔIs = reduction in solar intensity,%
Il = intensity of the sun outside the home screen, W / m²
Id = intensity of the sun on the home screen, W / m²

Decrease the intensity of ultraviolet (UV)

a.Pengukuran intensity ultraviolet (UV) was done using an instrument solar UV Radiometer A / B in units of W / m²

b.two Radiometer instrument to measure the decrease in the intensity of UV light due to the closing screen house. Usually, the greater the intensity of UV light using a solar pyranometer type A is 2.5% of total global radiation of sunlight

c. measure mounted vertically (perpendicular) in height (2-3) m from the soil surface, both inside and outside the home screen

d.Pconducted simultaneously on the air condition is very bright, hot, cloudless and every hour from 08.00 until 17.00 hours

e. decrease in the intensity of UV rays because of the cover netting / plastic is calculated using the following equation:.

ΔUV = (UVl-UVD)
---------- X100%
UV1
Description:
ΔUV = reduction in solar intensity,%
UVl = intensity of ultraviolet rays outside the home screen, W / m²
UVD = intensity of ultraviolet light in the screen house, W / m²

many ways the Thai lettuce nursery ACK Hydro Farm is a special company. Its location for example in the centre of Bangkok is certainly no place one would expect a high-tech nursery to be in Lettuce ACK is also an exceptional case and the Thai people are eating more and more of this vegetable. When the taxi comes closer to ACK Hydro Farm in On Nuch road in Bangkok, it is hard to believe that the address is correct. With the area being dominated by shops, bank, bats and hight-rise flats, it is certainly not the surrounding where you would expect a lettuce nursery to be. But once the gate of the ACK has been passed, aagain it is hard to imagine that this nursery is located in a town; the noise from the streets has gone, the main sound come from the fans which have to keep the greenhouses cool. The garden centre is still there, but smaller, since 80% of the 1 ha plot is used for the lettuce production together with the packing house where part of the lettuce is pre packed for ready made supermarket products. The hot climate is probably also an important reasen why lettuce is traditionally not common in the Thai kitchen. But with the increasing number of foreigners in the thai capital there is also a growing nee for dishes other main consumers of the lettuce from ACK, but those days are over, as Thai people are becoming more interested in different food and have discovered the sensation that the crispy lettuce leaves can give.

Safety and hygiene are important aspects at Hydroponics Growing for wich reason the Agriculture company works according to the ISO 9001:2000, GMP and HACCP guidelines.(Farm Visit to Thailand:Fruit-Veg Tech)

For employers either Agribusiness & Vegetables Local Trader and exporter, The rainy season is the season where the target market and production can be decreased drastically. Banyak kendala yang dihadapi oleh petani dilapangan (dataran tinggi) agar produksi sayuran tetap stabil, musim hujan adalah musim yang sering menimbulkan kerusakan bagi sayuran, terutama sayuran daun dan buah, baik kerusakan disebabkan oleh air hujan maupun timbulnya penyakit. Many of the constraints faced by farmers in the field (plateau) for vegetable production remained stable, the rainy season is a season that often cause damage to vegetables, especially leafy vegetables and fruits, both the damage caused by rain water and the occurrence of disease. ditempat lain justru musim hujan sangat dinantikan oleh sebagian besar oleh petani, terutama pada petani di lahan tadah hujan. elsewhere it has been long awaited by the rainy season, mostly by farmers, especially farmers in rainfed land.

Teknologi Hidroponik adalah salah satu jawaban untuk memberikan solusi terhadap kendala yang dihadapi oleh pelaku agribisnis terutama sayuran. Hydroponics technology is one answer to give a solution to the constraints faced by agribusiness, especially vegetables. Hidroponik adaalah suatu teknologi budidaya tanaman yang menggunakan media tanam selain tanah dan dapat dilakukan di dalam Rumah tanaman (greenhouse). Adaalah a hydroponic cultivation technology that uses a growing media other than soil and can be done in house plants (greenhouse). Greenhouse dibuat untuk rumah atau naungan tanaman agar iklim mikro dapat kita optimalkan, Greenhouse menghindari dari air hujan, Greenhouse membantu produksi sayuran selalu kontinyu, tanpa terhalangi oleh musim kemarau atau hujan. Greenhouse made for the house or shade plants for the microclimate can we optimize, Greenhouse avoid the rain water, helping Greenhouse vegetable production is always continuous, with no obstructed by the dry or rainy season. Teknologi ini memperbesar peluang untuk lebih meningkatkan produksi per m2. This technology increases the opportunity to further increase the production per m2.

Teknologi Hidroponik & Greenhouse di Indonesia sejak Tahun 1992 telah mengalami pasang surut, tidak hanya penyerapan SDMnya yang lambat, juga sebagian besar bahan dan alat yang digunakan adalah masih Import. Technology Hydroponics & Greenhouse in Indonesia since 1992, has experienced ups and downs, not only the slow absorption of human resources, as well as most of the materials and equipment used is still Import. Barang Import memang cenderung harganya tinggi, sebab kebijakan bea masuk tidak mengenal apakah barang itu buat pertanian atau tidak. Goods Import prices are likely higher, because the policy of import duties do not know whether the goods were for agriculture or not. Tetapi lambat laun trend dan luasan hidroponik di Indonesia cepat naik, menurut catatan kami, Greenhouse sudah lebih dari 70 ha untuk produksi sayuran, terutama di dataran tinggi, baik Greenhouse buatan dalam negeri maupun Import. But slowly the trend and extent of Indonesia's rapid hydroponic rose, according to our records, the Greenhouse has more than 70 ha for vegetable production, especially in the highlands, both domestically and Greenhouse Import.

Sekarang sudah sangat pesat perkembangan Teknologi Hidroponik & Greenhouse, dari tanaman Tomat, Paprika, melon, cabai, timun, terong, lettuce, krisan, mawar, bunga potong, rocket, strawbery dll. It is now very rapid development of technology Hydroponic & Greenhouse, from plants Tomatoes, peppers, melons, peppers, cucumbers, eggplant, lettuce, chrysanthemums, roses, cut flowers, rocket, strawberries etc. dari mulai teknologi hidroponik yang manual sampai yang dikendalikan oleh komputer. ranging from a manual to hydroponic technology that is controlled by computer.

Semua itu adalah upaya untuk meningkatkan kapasitas produksi, nilai jual yang tinggi, kualitas, memenuhi pasar yang tidak kenal musim hujan, dan pada akhirnya sayuran & buah Indonesia di hargai oleh Negara lain, sebab beberapa kasus export sayuran dari Indonesia tidak bisa masuk ke negara lain, tetapi bisa masuk melalui pihak negara lain. All of that is an effort to increase production capacity, selling high value, quality, meet the market who do not know the rainy season, and eventually Indonesia vegetables & fruits in respect by other States, because some cases of export of vegetables from Indonesia can not enter the other country , but can enter through the other country. Lets Go Hydroponics & Greenhouse... Lets Go Hydroponics & Greenhouse ...

From: www.agrifam.com (greenhouse construction)

About the Author

mr_edsu: Technical Advice for Hydroponics farm and management organisation for agriculture company, in Cipanas and Goalpara Sukabumi, Indonesia 1995-1997 • Setting up Horticultural Production & Hydroponics of Practical Training Network in West & East Java, South Sulawesi, Indonesia 1998-2002 • Teacher (plant nutrition, water management, greenhouse operation, propagation) at The Horticultural Production & Hydroponics of Practical Training Network, Cooperation with Netherlands Government, DLV Agriconsult, and IPC Netherlands. • Supporting team setting up Greenhouse growing farm horticulture company in Ijen-Bondowoso, Indonesia 1999 • Setting up Marketing Research in West Java and Makasar, Indonesia 1998 • Supporting team setting up marketing organisation in Java and Bali, Indonesia 2003 until now • Setting up production farm, Consultancy and management organisation for: Lanna oriental Hydroponics Ltd, in Chiang Mai, Thailand 1999. Supplier to the horticultural Industry, Consultancy, Hydroponics System and Vegetable Production, Greenhouse and Hydroponics. Technical Advice : edis@greenhouseconstruction.co.uk

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