{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Phosphorus indexing for cropland: overview and basic concepts of the Iowa phosphorus index.: An article from: Journal of Soil and Water Conservation","author_name":"A.P. Mallarino, B.M. Stewart, J.L. Baker, J.D. Downing, J.E. Sawyer","thumbnail_url":"https://www.ebooknetworking.net/books/noimage.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-B0008G55FG.html\">Phosphorus indexing for cropland: overview and basic concepts of the Iowa phosphorus index.: An article from: Journal of Soil and Water Conservation</a>","width":400,"height":300}