1 Subjects: “...Technology, engineering, agriculture / bicssc...”

2 Subjects: “...agriculture...”

3 Subjects: “...sustainable agriculture...”

4 Subjects: “...agricultural products...”

5 Subjects: “...agricultural division of labor...”

6 Subjects: “...Promotion of agriculture and food production...”

7 Subjects: “...agricultural land...”

8 Subjects: “...total factor productivity of agricultural enterprises...”