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用土柱模拟装置在淹水条件下对沸石粉与碳酸氢铵混施后氮素挥发和淋失的影响进行研究.结果表明,淹水培养26天,沸石铰饱和度达36.28%,淋洗上柱10昼夜,沸石铵饱和度达41.1%,是土壤铵饱和度的4倍.沸石碳按混施后降低了水层中的铵氮含量,比单施碳铰减少氮素挥发损失22.7%.混施处理土层的铵氮含量是单施碳铵土层的1.47—3.09倍;淋出液中氮素亦相应减少.
The effect of nitrogen volatilization and leaching loss after mixed application of zeolite powder and ammonium bicarbonate was studied by using soil column simulation device under flooding conditions.The results showed that the saturation of zeolite hinge reached 36.28% The saturation of zeolite reaches 41.1%, which is 4 times of that of soil ammonium, in the daytime and night of column 10. The zeolite carbon reduces the content of ammonium nitrogen in the water layer by mixing, reducing the volatilization loss of nitrogen by 22.7%. The content of ammonium nitrogen in the mixed treatment soil layer was 1.47-3.09 times that of the single ammonium carbonate soil layer. The nitrogen in the leaching solution also decreased accordingly.