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挪威Hydro农业集团每年生产化肥1,200万吨,他们根据过去87年中累积的有关农业和化肥施用方面的知识,并参考了200余篇有关文献,以化肥使用与环境为背景编写了旨在反映现代农业与环境,特别是化肥施用问题的《农业与化肥》一书,由挪威Hydro肥料公司于1990年出版发行。全书共245页,分为五章,并附有有价值的彩色插图47幅和彩色照片39幅,例如1950—2025年世界人口增长图、1850—1990年洛桑试验场使用和不使用化肥的谷物产量图、五十年长期施肥试验中土壤腐殖质含量变化图、氮肥不同施用率对春小麦面粉烘面包性质的影响的彩照,小麦间播三叶草提供氮素和意大利黑麦草防止氮素淋失并作为下季作物绿肥的彩
Hydro Agricultural Group of Norway produces 12 million tons of chemical fertilizers each year. Based on the accumulated knowledge of agricultural and fertilizer application in the past 87 years and based on more than 200 related documents, the Hydro Agriculture Group of Norway, based on the background of fertilizer use and environment, Agriculture and Fertilizers, a book on agriculture and the environment, especially the application of fertilizers, was published by Hydro Fertilizer in Norway in 1990. The book is 245 pages divided into five chapters with 47 colorful photographs and 39 color photographs, such as the World Population Growth Chart, 1950-2025, the cereals used and not used in the Lausanne Test Grounds 1850-1990 Yield map, soil humus content change in 50 years of long-term fertilization experiment, color photos of different nitrogen application rates on the properties of spring wheat flour bread, wheat intercrop clover to provide nitrogen and Italian rye to prevent nitrogen leaching and as a Season crop color of green manure