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دانلود تحقیق آماده در مورد انواع گلخانه با فایل پاورپوینت

دانلود-تحقیق-آماده-در-مورد-انواع-گلخانه با فایل-پاورپوینت
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Dear friends, we have prepared a research for you about the types of greenhouses in PowerPoint format and beautiful slides. It is also editable and printable. You can easily change it.

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لینک کوتاه : https://en.magicfile.ir/?p=2918
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دانلود تحقیق آماده در مورد انواع گلخانه با فایل پاورپوینت

Dear friends, we have prepared a research for you about the types of greenhouses in PowerPoint format and beautiful slides. It is also editable and printable. You can easily change it.

مشخصات تحقیق آماده در مورد به شرح زیر می باشد :

  • عنوان تحقیق : انواع گلخانه
  • فرمت فایل : PowerPoint (.ppt)
  • قابلیت ویرایش : دارد
  • چاپ : بدون مشکل در پرینت گرفتن
  • تعداد اسلاید : 38

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تحقیق آماده در مورد انواع گلخانه با فایل پاورپوینت 11

قسمتی از متن انتخاب شده از داخل فایل پاورپوینتی :

Greenhouse is used as one of the methods of growing plants in many parts of the world. These structures have different characteristics and are different depending on the type of use and the area where they are located. In this article, we will examine different types of greenhouses, their characteristics and their different uses.

گلخانه پلاستیکی
Plastic greenhouse is one of the most common types of greenhouses. These greenhouses are made of plastic sheets and are used in many parts of the world for growing tropical crops such as cucumbers, tomatoes, eggplants, etc. Plastic greenhouse is very popular due to its low cost, easy installation and light weight.

گلخانه شیشه‌ای
The glass greenhouse is one of the most expensive types of greenhouses that use glass for its structure. This type of greenhouse is used for growing plants that need a lower temperature, such as flowers, vegetables, houseplants, etc. The glass greenhouse is used because of creating an environment with a favorable temperature, increasing the growth process of plants and increasing the yield of the product.

گلخانه تونلی
Tunnel greenhouse is another type of greenhouse that is made of plastic sheets and designed in a tunnel shape. These types of greenhouses are used for growing vegetables, ornamental flowers, etc. Due to its lower cost and easier installation, the tunnel greenhouse can be a suitable option for farmers with limited budgets.

تعریف گلخانه:
A greenhouse is a limited part of the space where all environmental factors can be controlled and it is built for intensive cultivation and production of crops outside the season or outside the natural environment of the plant.

مفهوم گلخانه :
Every plant needs special conditions in terms of light intensity, day and night temperature, relative air humidity and soil moisture to grow optimally. Greenhouse refers to a building with a wooden or metal frame and under controlled conditions (temperature, humidity, light, carbon dioxide, etc.) with transparent materials (glass or plastic) in order to allow natural light to pass through for the growth and development of plants. is covered

در احداث گلخانه‌‌ها باید به عوامل متعددی توجه شود:
1. Providing the required light. The most important factor is light. Lighting is very important for greenhouse plants. On cloudy and winter days and in areas where the amount of light is less, artificial lights are used, and greenhouses should be built in a direction that absorbs light. The frame and cover of the greenhouse should also be designed and built so that enough light reaches the plant. In bright summer days, by pulling mats or dark nets or sprinkling flowers and colors before washing on the greenhouse cover, additional light should be prevented from penetrating the greenhouse.
2. Heat supply. It is very necessary to provide the right temperature for plant growth, especially in cold and cloudy days of winter. Greenhouse cover should be chosen from the type that has the least heat loss. Sometimes double layers are used to reduce heat loss. Of course, at times of the year (hot summer days) there is a need to reduce the temperature of the greenhouse and cooling operations must be performed. The best type of fuel for heating and cooling devices is gas. Some people use diesel and oil, but the cleanest fuel is gas.
3. Carbon dioxide supply. Carbon dioxide is one of the essential factors in photosynthesis. Increasing the concentration of carbon dioxide artificially in the greenhouse environment causes the optimal growth of the plant, early harvest and increases its quality and quantity.
4. Sufficient moisture supply. The air in the greenhouse may be too dry or too humid, and in the dry state it should be humidified (with humidifier equipment) and in the very humid state, it should be dehumidified (by doing ventilation).

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ارسال کننده نظر مصطفی - 2023/10/21 4:42:33 am
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