organic carbo-nitrogen ratio in soil

例句：

1. 1. The organic matter in the soil is essential for plant growth.
   土壤中的有机物对植物生长至关重要。
2. 2. Organic farming practices are becoming increasingly popular.
   有机农业实践越来越受欢迎。
3. 3. The organic food label indicates that the product contains no synthetic additives.
   有机食品标签表示该产品不含合成添加剂。