Tài nguyên được gắn thẻ với: Tropical Zones
1 đề mục được tìm thấy (Hiển thị 1 - 1)
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01-01-1989 Grasses are among the world's most widespread plants. They are an economical livestock feed and when associated with legumes, through the rhizobium/pasture/animals symbiosis, maintain and improve soil fertility while sustaining animal production. Grazing lands cover vast areas of the earth's...