过磷酸石灰

例句：

1. 1. This fertilizer is very effective for plants, especially in the spring when they need extra nutrients.
   这种肥料对植物特别有效，尤其是在春天，它们需要额外的养分。
2. 2. The farmer applied this kind of superphosphate to his fields to improve soil quality and increase crop yield.
   这位农民在他的田地上施用了这种超磷酸盐，以改善土壤质量并提高作物产量。
3. 3. Superphosphate is a key ingredient in many agricultural products, helping farmers to produce more crops with less effort.
   超磷酸盐是许多农业产品的关键成分，帮助农民用更少的努力生产更多的作物。