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本文通过绿肥在淹水培养条件下的矿化试验,证实了滩水条件下矿化出的铵可以迅速地直接进入2:1型粘土矿物晶层内部而被“固定”.其固定量多少受质地、粘土矿物组成、石灰反应等多种因素影响.在施入含氮量较高的绿肥时,矿化生成的铵有10～35%以上被矿物所固定,从而起到了较好的保肥作用.在进行土壤氮素矿化及土壤供氮量的预测时,如不考虑该组分氮,则会导致错误的结论.
In this paper, through mineralization experiments of green manure under flooding culture conditions, it is confirmed that the ammonium that is mineralized under the condition of beach water can be quickly “fixed” by directly entering into the interior of the 2: 1 type clay mineral crystal layer. Texture, clay mineral composition, lime reaction and many other factors.In the application of nitrogen fertilizer with high green manure, the mineralization of ammonium generated by more than 10 to 35% of mineral fixed, which played a better fertilizer In the process of predicting soil nitrogen mineralization and soil nitrogen supply, if the component nitrogen is not taken into account, it will lead to wrong conclusions.