Farmers graft vegetable seedlings in a greenhouse in Yandian Town, Shenxian County, east China's Shandong Province, Jan. 28, 2026. As an important vegetable supplier, Shenxian boasts a planting area of more than 1 million mu (about 66,666.7 hectares) and the annual output reaches 5.2 million tons. (Xinhua/Xu Suhui)

Farmers graft vegetable seedlings in a greenhouse in Yandian Town, Shenxian County, east China's Shandong Province, Jan. 28, 2026. As an important vegetable supplier, Shenxian boasts a planting area of more than 1 million mu (about 66,666.7 hectares) and the annual output reaches 5.2 million tons. (Xinhua/Xu Suhui)

An aerial drone photo taken on Jan. 28, 2026 shows vegetable greenhouses in Yandian Town, Shenxian County, east China's Shandong Province. As an important vegetable supplier, Shenxian boasts a planting area of more than 1 million mu (about 66,666.7 hectares) and the annual output reaches 5.2 million tons. (Xinhua/Xu Suhui)

Farmers graft vegetable seedlings in a greenhouse in Dongduzhuang Town, Shenxian County, east China's Shandong Province, Jan. 28, 2026. As an important vegetable supplier, Shenxian boasts a planting area of more than 1 million mu (about 66,666.7 hectares) and the annual output reaches 5.2 million tons. (Xinhua/Xu Suhui)

A farmer grafts vegetable seedlings in a greenhouse in Dongduzhuang Town, Shenxian County, east China's Shandong Province, Jan. 28, 2026. As an important vegetable supplier, Shenxian boasts a planting area of more than 1 million mu (about 66,666.7 hectares) and the annual output reaches 5.2 million tons. (Xinhua/Xu Suhui)