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主要讨论 3个方面的问题 :(1)从农业生产的历史发展和现状看使用化肥的必然性 ;(2 )化肥在多方面的巨大作用 ;(3)使用化肥能显著增加贮藏在农产品中的生物能。强调化肥不仅不会破坏耕地土壤 ,而且有助于土壤肥力的逐步提高
The main topics discussed are: (1) the inevitability of using chemical fertilizers based on the historical development and current situation of agricultural production; (2) the great role of chemical fertilizers in many aspects; (3) the use of chemical fertilizers to significantly increase the biomass stored in agricultural products can. Stressed that fertilizers will not only destroy farmland soil, but also help to gradually increase soil fertility