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为明确硝酸钙泥对土壤的改良效果,采用盆栽试验研究了硝酸钙泥与泥炭和无机肥配施对石灰性褐土和菜园土的土壤pH值、含盐量、有机质、全氮、速效磷和速效钾的影响。结果表明,从土壤pH值和含盐量改变效果来看,泥炭∶钙泥为1∶6的施肥处理施用效果最好;从土壤有机、无机养分含量来看,泥炭∶钙泥为4∶3的施肥处理施用效果最好。不同施肥处理可以改善土壤酸碱度,增加土壤含盐量,提高有机、无机养分含量,因此,硝酸钙泥可与泥炭和无机肥配置成复混肥料,从而实现农业资源化利用。
In order to clarify the improvement effect of calcium nitrate mud on the soil, pot experiments were conducted to study the effects of the application of calcium nitrate mud, peat and inorganic fertilizers on the soil pH, salinity, organic matter, total nitrogen, available phosphorus And the effect of available potassium. The results showed that the application effect of peat: calcium mud was 1: 6, and the best effect was obtained from the effect of soil pH and salinity change. From the content of soil organic and inorganic nutrients, peat: calcium mud was 4: 3 Fertilization treatment is the best. Different fertilization treatments can improve soil pH, increase soil salt content, and increase organic and inorganic nutrient contents. Therefore, nitrate fertilizer can be configured as a compound fertilizer with peat and inorganic fertilizers to achieve agricultural resource utilization.