他们喷撒杀虫剂给马铃薯除虫。
成功的应用实例包括少量喷撒、泡沫剂及农药颗粒剂的土壤施用。
Examples of successful application improvements are low volume sprays, foams, and granular soil applications.
农民为了使作物长得更好而给土壤施化肥或者为了杀死害虫而喷撒农药。
Farmers add fertilizer to the soil to make plants grow better, or spray poison to kill plant pests.
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