{ "item_title" : "Introducing System Models", "item_author" : [" Lajpat R. Ahuja", "Liwang Ma "], "item_description" : "Why model? Agricultural system models enhance and extend field research...to synthesize and examine experiment data and advance our knowledge faster, to extend current research in time to predict best management systems, and to prepare for climate-change effects on agriculture. The relevance of such models depends on their implementation. Methods of Introducing System Models into Agricultural Research is the ultimate handbook for field scientists and other model users in the proper methods of model use. Readers will learn parameter estimation, calibration, validation, and extension of experimental results to other weather conditions, soils, and climates. The proper methods are the key to realizing the great potential benefits of modeling an agricultural system. Experts cover the major models, with the synthesis of knowledge that is the hallmark of the Advances in Agricultural Systems Modeling series.", "item_img_path" : "https://covers1.booksamillion.com/covers/bam/0/89/118/180/0891181806_b.jpg", "price_data" : { "retail_price" : "129.95", "online_price" : "129.95", "our_price" : "129.95", "club_price" : "129.95", "savings_pct" : "0", "savings_amt" : "0.00", "club_savings_pct" : "0", "club_savings_amt" : "0.00", "discount_pct" : "10", "store_price" : "" } }

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