用sown area造句子，“sown area”造句

In 1959, various factors such as reduction of sown areas, less yield per unit area and natural disasters contributed to the decrease in grain output.

While the wheat sown area is stable, the sown area of maize and cotton fluctuated greatly and the area of vegetable has increased constantly.

The sown area change has not obvious effects on the production in the various regions, but the continuous decreased sown area has restrained the production in the East and Central South of China.

To meet t changing market, the sown areas of grain was 103.99 million hectares, a decrease of 2.09 million hectares as compared with that in the previous year, and the sown areas of cotton was 4.18 million hectares, a decrease of 630,000 hectares.

Proposed in the above analysis foundation the Shanxi grain production next development direction will be: Stable grain sown area;

The practice showed that the forest area may account for about 30%of the total sown area, so long as the Suitable sown area and sowing time are chosen.

Note:From 2002, sown areas of grain are from sample surrey.

The sown area of grain was decreased by 30.7 percent to 3.207 million mu.