ศาสตร์เกษตรดินปุ๋ย : ขอบคุณแหล่งข้อมูล : หนังสือพิมพ์ The Nation

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Egrets are seen on a tree near the Huaihe River in Xuyi county of Huai’an, East China’s Jiangsu province, Oct 8, 2016. [Photo/Xinhua]

Cattle egrets rest on a tree the Huaihe River in Xuyi county of Huai’an, East China’s Jiangsu province, Oct 8, 2016. [Photo/Xinhua]

An egret rests on a tree near the Huaihe River in Xuyi county of Huai’an, East China’s Jiangsu province, Oct 8, 2016. [Photo/Xinhua]

Egrets are seen on a tree near the Huaihe River in Xuyi county of Huai’an, East China’s Jiangsu province, Oct 8, 2016. [Photo/Xinhua]

Egrets are seen on a tree near the Huaihe River in Xuyi county of Huai’an, East China’s Jiangsu province, Oct 8, 2016. [Photo/Xinhua]