When Do Corn Plants Mature in Shandong? Introduction to Maturation Time

Corn in Shandong generally matures from late August to mid-September. Because the corn sowing period in the Shandong region is earlier and the growth period is relatively long, yields are also somewhat higher.

Corn Growing Environment

1. Temperature

Corn is a warmth-loving crop and requires relatively high temperatures throughout its growth period. The biological effective temperature for corn is 10℃. Seed germination requires 6—10℃; below 10℃ germination is slow, at 16—21℃ germination is vigorous, the optimum germination temperature is 28—35℃, and germination stops above 40℃. During the seedling stage it can tolerate short-term temperatures of -2 to -3℃.

2. Water

Corn plants are tall and have a large leaf area, so they also need a relatively large amount of water. The optimum rainfall during the corn growing period is 410—640mm; drought affects corn yield and quality. It is generally believed that areas with less than 150mm of rainfall in summer are not suitable for growing corn, while too much rainfall affects sunlight, increases disease, lodging and weed damage, and also affects improvements in corn yield and quality.

3. Soil

Corn is not very strict about soil requirements. Loose soil, deep soil, and chernozem, chestnut soil and sandy loam rich in organic matter, with a pH value in the range of 6-8, can all be used to grow corn.