This is the 3175th most frequent Polish word.
rolnictwo
Agriculture.
In this sentence, the word 'rolnictwo' is the subject and is used to describe agriculture as a key industry in rural settings.
Rolnictwo jest podstawową gałęzią gospodarki na wsi.
Agriculture is a fundamental sector of the economy in rural areas.
Here, 'rolnictwo' appears in its locative case form 'rolnictwie,' indicating the domain in which the methods are applied.
Studenci uczą się nowoczesnych metod stosowanych w rolnictwie.
Students are learning modern methods used in agriculture.
In this case, 'rolnictwo' is used as the object being affected by the technological progress, remaining in its nominative form.