November 2021

The solar collector .. the emergence of modern technologies and technologies used inside greenhouses, after heating systems based on air and hot water, and those that use steam pipes as well as heaters for greenhouses, ... اقرأ المزيد

Establishment of greenhouses.. Agriculture inside greenhouses or what is known as greenhouses began many years ago, but it has become more easy, developed and widespread, during the last ten years, and many countries, including Saudi ... اقرأ المزيد