When is the best time to plant spring corn?

The planting time of spring corn is generally from the end of April to the beginning of May, and the planting time of corn in different regions is also different. It is necessary to adjust the sowing date of corn according to the local time, climate and temperature. If the temperature changes too much, it is likely to cause corn buds to die and rot.

Spring corn in Shandong is usually sown in early April, and the sowing period of spring corn in Northeast China is from April 20th to May 10. South corn can be planted for two seasons, spring corn is usually sown in late March and early April, Hebei spring corn is sown in late April to early May, Anhui spring corn is generally sown before mid-April, and Hunan spring corn is generally sown in early April.

According to the division from south to north in China, the farther south the area, the earlier the sowing date. In parts of South China, Southwest China and East China, the sowing date of spring corn begins in the middle and late March. In most parts of Central China and North China, the sowing time of spring corn is concentrated in the first half of April. In the main spring corn producing areas such as Northeast China and Inner Mongolia, the sowing date may be in the middle and late April or even early May.

Three factors of reference sowing.

First, refer to the solar terms. Determine the sowing time of spring corn according to solar terms. Spring corn can be planted in parts of the south when the vernal equinox and solar terms arrive. In previous years, farmers in the central region planted spring corn around Tomb-Sweeping Day. Farmers in the north usually plant spring corn in Grain Rain season. Moreover, the time corresponding to the above solar terms also echoes the above, which has certain reference significance.

Second, the reference temperature. The sowing date of spring corn has a great relationship with the local temperature. When the temperature is too low, it will affect the germination rate. In the actual sowing process, farmers often have to wait until 15 degrees before sowing corn. If the time is up, but the temperature is not high, sow again in a few days.

Third, reference varieties. Different varieties of corn have different sowing time, such as feed corn, waxy corn, waxy corn and small grain corn. Sowing time is early and late. In addition, there are differences in the growth period of different varieties, some varieties are early-maturing and some varieties are late-maturing, which also determines the sowing time. For the sowing date caused by variety factors, it is suggested to sow according to the variety description.