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在3种潮土中加入5%的麦秸、猪粪和马粪进行盆钵培养,结果表明:施用有机料的初期,土壤的阳离子代换量下降,后期逐渐提高,并超过原来的水平。不同大小的微团聚体代换量不同。施用有机物料引起土壤吸持铵的能力下降。有机处理中,以猪粪处理吸附铵的量最大。不同大小的微团聚体对铵的吸贮释供能力不同。施用有机物料对不同粒级微团聚体吸持NH_4~+的能力的影响不同。
In the three kinds of alluvial soil, 5% wheat straw, pig manure and horse manure were used for pot cultivation. The results showed that in the early stage of application of organic materials, the amount of cation exchange decreased and the later period gradually increased beyond the original level. Different sizes of micro-aggregates different substitutions. The use of organic materials causes the ability of the soil to absorb ammonium. In organic treatment, the amount of ammonium adsorbed by pig manure was the largest. Microaggregates of different sizes have different capacities for ammonia storage and release. The effects of organic materials on the ability of different size fractions to adsorb NH_4 ~ + were different.