1 Subjects: “...production...”

2 Subjects: “...Nectar production...”

3 Subjects: “... and farming::TVK Agronomy and crop production...”

4 Subjects: “... and farming::TVK Agronomy and crop production...”

5 Subjects: “... and farming::TVK Agronomy and crop production...”

6 Subjects: “... and farming::TVK Agronomy and crop production...”

7 Subjects: “... and farming::TVK Agronomy and crop production...”

8 Subjects: “...plant-derived products...”

9 Subjects: “...Natural products...”

10 Subjects: “... and farming::TVK Agronomy and crop production...”

11 Subjects: “... and farming::TVK Agronomy and crop production...”

12 Subjects: “...biogas production...”

13 Subjects: “...electricity production...”

14 Subjects: “...natural products...”

15 Subjects: “...net primary productivity...”

16 Subjects: “...productivity...”

17 Subjects: “...productivity...”

18 Subjects: “...productivity...”