1, Intensive cultivation has impoverished the soil.

2, This could be achieved in three years, using intensive cultivation.

3, The brightest areas are those of intensive cultivation, and intermediate shades represent grassland and sugar beet.

4, Regularly, where intensive cultivation succeeds, civilized people in the Far East occupy only small areas.

5, Knowledge requires repeated explorations, and farmland needs intensive cultivation.

6, Intensive cultivation exposes the earth to the damaging forces of nature.

7, In my opinion, we must depend on intensive cultivation to feed ourselves.

8, Appropriate-scale-operation, farmland capital construction, intensive cultivation and proper rotation of crops are the ways to improve energy efficiency.

9, But back on the marshes and fens,(http:///intensive cultivation.html) who was really to profit from this continual process of ever more intensive cultivation?

10, Meanwhile, points for attention that whether the age structure is reasonable under intensive cultivation.

11, The rules of nitrate accumulation in Dian lake drainage area in intensive cultivation are studied.

12, Stable time cheiloschisis or palatoschisis minutes in water condition good under intensive cultivation can reach 400 per kg.

13, To make up for the lack of land, he proposed intensive cultivation of the fields.