alkali-lime index

例句：

1. 1. The alkaline-limeindex is a measure of the soil's acidity and alkalinity.
   碱石灰指数是衡量土壤酸性和碱性的指标。
2. 2. The alkaline-lime index is used to determine thesuitability of the soil for growing crops.
   碱石灰指数用于确定土壤是否适合种植作物。
3. 3. The alkaline-lime index is an important factor in determiningthe fertility of the soil.
   碱石灰指数是决定土壤肥力的重要因素。