硝酸钙泥、硝酸镁泥肥料化的土壤效应

利用盆栽试验研究了硝酸钙泥、硝酸镁泥及其与有机、无机肥料配合下对土壤肥力性状的影响。结果表明:施肥处理使土壤pH值、含盐量、有机质和全氮含量增加。其中Ca+W和Mg+W处理的土壤含盐量和全氮含量与CK处理之间差异显著,含盐量分别增加了0.202个百分点和0.162个百分点,全氮含量分别增加了54.68%和51.23%;Ca+Y和Mg+Y处理的土壤pH值、有机质含量与CK处理之间差异显著,pH值分别增加了0.38和0.36,有机质分别增加了70.51%和31.63%。由此可见,硝酸钙泥、硝酸镁泥与无机肥料或者有机肥料配合施用对土壤具有良好的改良作用,其次为与无机有机肥料配合施用。但盐分是影响硝酸钙和硝酸镁泥肥料化的主要因素。因此,硝酸钙泥、硝酸镁泥可与有机、无机肥料配置成复混肥料实现农业资源化利用,但须合理施用。

Effect on Soil of Calcium Nitrate Residue and Magnesium Nitrate Residue as Fertilizer

The influence of the soil under the treatment of calcium nitrate residue and magnesium nitrate residue cooperating with organic and inorganic fertilizers was researched by potting experimental. The results showed that the treatment of fertilizer increased pH, content of salt, organic matter and total nitrogen in soil. The content of salt and total nitrogen in soil was significant different between the treatment of Ca＋W and Mg＋W and treatment of CK. The content of salt was increased by 0.202 and 0.162 Percent-age, the content of total nitrogen increased by 54.68% and 51.23%. The pH and the content of organic matter were significant different between treatment of Ca＋W and Mg＋W and treatment of CK, the pH increased by 0.38 and 0.36, the content of organic matter increased by 70.51% and 31.63%.Thus, with the coordination of calcium nitrate residue and magnesium nitrate residue and inorganic or organic fertilizer has a good role on soil in improving properties, secondly, coordination with organic and inorganic fertilizer. But salt is the main factor affecting calcium nitrate residue and magnesium nitrate residue fertilizer. Therefore, calcium nitrate residue and magnesium nitrate residue can be configured with organic and inorganic for compound fertilizer in agricultural resources utilization, but need to be reasonable application.