Polyhouse Subject: Science and Technology Context: Mr. Harish Hirani, director of Indian Council of Scientific and Industrial Research’s Central Mechanical Engineering Research Institute (CSIR-CMERI), Durgapur, recently inaugurated a “naturally ventilated polyhouse facility” and laid the foundation stone of “retractable roof polyhouse” its Ludhiana centre. Concept: What is a polyhouse? Polyhouse or a greenhouse […]