论文部分内容阅读
几十年来,因大量施用化学肥料,导致土壤结构失去了原来的赋存条件,土壤肥力不断下降,土壤的“核心物质”——腐植酸难以为继。农业和环境学家指出,凡是向土壤投放的外源性物质,都是对土壤的攻击。从维护土壤生命力来看,非土壤本源性物质腐植酸不可为。对此,向土壤反哺工业提取的腐植酸,重构“土肥和谐”新关系,于农业可持续发展意义重大。
For decades, due to the large amount of chemical fertilizers applied, the original structure of soil was lost and the soil fertility was declining. Soil “core material” - humic acid was unsustainable. Agricultural and environmentalists point out that all exogenous substances released into the soil are attacks on the soil. From the point of view of maintaining soil vitality, non-soil humic acid can not be the source material. In this regard, the extraction of humic acid from the soil-feeding industry, reconstruction “new relationship between soil and fertilizer harmony ”, of great significance for the sustainable development of agriculture.