Planting time and harvesting time of main crops and wheat distribution

Winter wheat: Sow in September and June, 65438+ 10, and harvest in April and May of the following year (mainly in the south of the Great Wall).

Spring wheat: Sow after the Spring Festival and harvest in August and September (mainly in the north of the Great Wall).

Cotton: April to September

Rapeseed: 12- May of the following year

Peanut: April-10.

Beet: May to September.

Rice: Northeast China: May, June -65438+ 10 (single season)

South: April-July 7- 10, 165438+ 10 month (bi-seasonal)

The winter wheat area in North China is the main winter wheat producing area in China, with 47% sown area and 53% total output. Generally speaking, winter wheat can overwinter safely, and the accumulated temperature is above 0℃ and 4 100℃. It can be used for double cropping of wheat and early and middle maturity corn. Water is the limiting factor in determining the planting area. There are many varieties of irrigated land in the north of the Yellow River, and Huanghuai Plain is a suitable area for dryland wheat with great production potential.

In the middle and lower reaches of the Yangtze River, the planting area accounts for 12.3%, and the total output accounts for 45%. From March to May, the light and warm water in Jianghuai Plain is relatively coordinated. Areas where the precipitation is more than 450 mm from March to May are not suitable for wheat planting. The commodity rate of wheat in this area is very high.