soil ameliorant

Therefore, S.collina may be used as biological ameliorant of salt soil.

猪毛菜可以作为盐碱地“生物脱盐器”。

The study showed that all ameliorant treatments could decrease soil acidity in loquat garden and peach garden except the treatment of superphosphate, ameliorant treatments decreased the bioavailability of Pb, Cd in soil, and reduced the contents of Pb, Cd in fruits.

研究发现，除单施过磷酸钙外，其它改良剂处理都能降低两个园区的土壤酸度，改良剂处理均降低了土壤中Pb、Cd的生物有效性，进而降低果品中的Pb、Cd含量。

Mechanism of Ameliorant Combinations Ameliorating Saline-alkali Soil and Effect of Ameliorant Combinations on Plant Salt-tolerance

改良剂组合对盐碱土改良机理及对植物耐盐性影响的研究

Using potted trial, the soil heavy metal lead pollution influences on maize plant growth were studied under lime ameliorant condition.

采用盆栽试验，研究了在施用石灰改良的条件下，土壤重金属铅污染对玉米生长的影响。

Research conclusions: It is feasible to use lime as ameliorant of expansive soil.

研究结论：用石灰作为膨胀土的改良剂是可行的；