施肥是提高蔬菜产量的重要措施，然而不合理施肥会引起蔬菜硝酸盐的积累。
Fertilization plays an important role in increasing yield of vegetable crops, however, improper application of fertilizers may result in nitrate accumulation in vegetable crops.
由于红壤特殊的性质和不合理的施肥，引起了土壤酸化和氮、磷的污染，导致红壤地区生态环境的恶化。
Due to the special property of red soil and unreasonable fertilization, its environment has been deteriorated in this region.
分析了农业中水污染的情况，指出不合理污灌、施肥、施药是引发面源污染的重要污染源。
After analyzing the water pollution in agriculture, the authors point out that irrational sewage irrigation, fertilization and pesticide application were the main origins for non-point pollution.
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