Spring corn is very common in Gansu. What are the planting methods of spring corn in Gansu?

Corn seeds are large in size and hard in texture. Compared with other crop seeds, the germination temperature is higher, and the most suitable germination temperature is 30~35℃. Therefore, sowing in spring should not be too early, and the air temperature and ground temperature are too low to reach the temperature of seed germination. Due to regional differences, the temperature difference is quite large, and the time of sowing corn varies from place to place. But as far as the region is concerned, the sowing time is similar every year. In our local area, the time for planting corn, peanuts and other crops is basically around April 20.

The time to sow corn depends on the region. China has a vast territory, and the temperature difference between north and south rural areas is also great. Even in the same province, the sowing time of corn can't be the same. Therefore, the sowing date of corn should be determined according to the local climate. In Zhaoyuan South Township, the corn planted by ordinary people is planted in the open air, and there is no corn covered with plastic film. In recent years, due to the frequent occurrence of spring cold, if spring corn is sown too early, it will easily lead to rotten seeds and lack of seedlings. The sowing time of spring corn is generally delayed after May Day.

Basically, wheat is harvested before planting corn. Generally, in the middle and late June, fertilizer and corn are sown together and then watered. Three seedlings at intervals of one meter. The optimum germination temperature of maize seeds is about 10℃, so when the soil temperature of 5- 10 cm is stable at 8- 10℃, the suitable sowing date of spring maize is reached. In spring, the temperature rises rapidly. Once we enter the suitable sowing period, we should sow in time and finish sowing as soon as possible.

The climate is different in every place. For example, we can plant seeds earlier in the south, because our climate is the best time for planting in the tropics. There is no snow, only a little rain in Mao Mao, but it will be later in the north, because the climate in the north is colder. Before Grain Rain, we should apply foot fat to the land, turn it deep and level it, and wait for the opportunity. After Grain Rain, if it rains in time and the soil moisture is sufficient, it is best to sow at this time. As long as the underground pests are well controlled and high-quality seeds are purchased, the seeds will break ground and germinate.