Agriculture
Polyhouse and modern techniques
पॉलीहाउस और आधुनिक कृषि तकनीकें
In this Class 9 Agriculture topic from Agricultural Resources and Technology, students learn how polyhouses support protected cultivation by controlling temperature, humidity, light, and ventilation. They explore how these structures help grow crops in less suitable conditions, improve resource use, and protect plants from harsh weather and some pests. The topic also introduces modern techniques such as drip irrigation, efficient nutrient management, seedling care, and basic soil-less cultivation, helping students understand the role of technology in sustainable farming.
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