{"version":"1.0","type":"rich","provider_name":"EbookNetworking","provider_url":"https://www.ebooknetworking.net","title":"Computations for Studies in Soil Fertility and Fertilizer Requirements","author_name":"J.D. Colwell","thumbnail_url":"https://www.ebooknetworking.net/books/085/198/big0851984371.jpg","thumbnail_width":330,"thumbnail_height":500,"html":"<a href=\"https://www.ebooknetworking.net/books_detail-0851984371.html\">Computations for Studies in Soil Fertility and Fertilizer Requirements</a>","width":400,"height":300}