Importance of heating in Agriculture , Horticulture and the green house
Importance of heating in Agriculture & Horticulture
Some seeds can germinate quicker and healthier when supplied with warm soil that obtained through the bottom heat source , For the seed germination , The ideal temperatures should range from 65 to 80˚F , So , applying bottom heat can help alleviate potential problems brought on by colder conditions .
You can buy heat mats from the garden centers or the nurseries , The best options are ones come with a thermostat that allow you to maintain your heat settings which can vary depending on seed type , Some seeds may need temperatures in the higher 50s while others thrive in the temperatures ranging in the 80s .
If you don’t want to dig into your wallet , You can take a plastic cooler , You can place a string of Christmas lights at the bottom , You can put a pan on top of the lights to keep away moisture , then you can place the seed containers on top of the pan .
Warmth can help your seeds germinate quicker and stronger , You must remember to remove them from the bottom heat once they have sprouted , You should avoid too much warmth after sprouting that can cause your tiny plants to become leggy and weak .
The agricultural and the horticultural sectors encompass a wide range of activities such as poultry farming , the dairy farming , the crop growing and the storage , There are a number of common areas where the energy is wasted .
The lighting , the heating , The ventilation , the air circulation and the refrigeration equipment are the greatest energy consumers and they are areas that offer the most significant savings .
The energy use proportions vary according to the business type and the activity or the process being carried out , in Horticulture , Heating is 90% of the energy used in the green house .
The energy use is in maintenance of good environmental conditions for housing the stock in Poultry farming , The energy use is split into the water heating , cooling , and general power for lighting and pumping in Dairy .
The energy use in the crop stores is related to insulation thickness and the difference between the storage temperatures and the external air temperature , in combinable crops .
Green house Heating
Heating is the main concern to the commercial greenhouse producers , Because the costs involved in the purchase and the operation of heating equipment .
Although the solar energy represents the important factor in the greenhouse heating , The supplemental systems are a necessity for year round production , The coal , oil and gas are the most popular forms of energy that used for the greenhouse heating .
The gas burns efficiently but all forms must be vented to avoid the toxic fumes , Many types of gas heaters have been designed for use in the green houses , When selecting this type of heating equipment , It is important to consider the fuel and the cost factors .
The heat from the gas units can be distributed in many different ways , The most popular method used is through polyethylene (PE) vent tubes , These PE tubes are attached near the heater and they are inflated when the blower fan is turned on .
The heat can be forced through the tube and it distributed into the house from the holes perforated in the PE , where these systems may be used in combination with ventilation and circulation equipment .
The arrangement of PE tubes in the green house influences the efficiency and the plant growth , When the tubes are hung overhead , The heat is move out of the plant zone and into the upper portion of the structure .
When the tubes are placed under the benches , The efficiency is improved and the heat is maintained in the appropriate area for optimum plant growth , It requires floor mount heating systems or ducts that move the heat from overhead units to the under bench tubes .
There are many types of thermostats and the environmental controllers which are available for the commercial green house production , Sensing devices should be placed at the plant level in the green house , The thermostats hung at eye level are easy to read .
The thermostats in the direct rays of the sun to avoid poor readings , It is necessary to use a small fan to pull the air over the thermostat to get appropriate values , And it is important to have an appropriate number of sensors throughout the production area .