دخلت منطقة كالوغا المناطق العشرة الأوائل في روسيا من حيث حصاد الخضروات الدفيئة
One of the largest greenhouse complexes for year-round vegetable cultivation is located in the Lyudinovsky district of the region. The plants here are watered with rainwater, and bumblebees pollinate them. ...