Abstract
The present study was conducted in the Sonepat, Karnal, and Hisar districts of Haryana, and the selection was based on the predominance of vegetable cultivation under protected structures. This study was based on both primary and secondary data. The study revealed that the total area under different types of protected structures in Haryana during 2017-18 was 756.99 ha, in which the highest area under a naturally ventilated polyhouse (403.84 ha) followed the net house (353.15 ha). The area under walk-in-tunnels (0.81 ha) was very less. It was concluded that major production constraints were nematode infestation, high cost of polyhouse material, a higher infestation of insect pest and diseases, short life of polysheet, higher cost of water-soluble fertilizer, fear of failure of technology, high cost of plant protection chemicals, higher seed cost and lack of latest package practice knowledge and application of pesticides. Marketing constraints in Haryana state were lack of minimum support price and fluctuation in produce prices was major marketing constraints followed by unorganized marketing and lack of scientific storage while lack of guidance for proper marketing place, suitable packaging material, and transportation facility were least problematic.

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