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 black polo shirt 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) red polo shirts
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) white polo shirts 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 / yellow polo shirts 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
没有评论:
发表评论