When will the corn be harvested in Zhumadian, Henan?

Harvest from September to 10, depending on when it is ripe, because the temperature varies every year. In late summer and early autumn, the beard in the corn field is brown.

Methods to judge the maturity of corn;

1, the back of corn kernels is a line from top to bottom, and the color will change from dark to light. Obviously, it is easy for naked eyes to see that when this line disappears completely, the 1000-grain weight of corn can reach 329 grams, which can be said to be the highest, and this is also the best harvest season.

2. There are 7-8 green leaves and 5 green leaves on a corn, and the difference of 1000-grain weight is more than 10g, so the whole acre of land will come down. It is normal that the yield varies by tens of kilograms, so it is the best harvest time for corn plants not to exceed 5 green leaves.

3. The 1000-grain weight of maize is about 3 10g after 40 days of pollination. After 5 days, that is, 45 days, the 1000-grain weight is about 330 grams. If it reaches 50 days, the weight of 1000 grains can reach more than 340 grams. However, over 50 days, the 1000-grain weight will decrease, so the corn harvest time is about 45-50 days.

Extended data:

In the plot where summer corn grows well and there are many green leaves, the ventilation and light transmission conditions in the field should be improved and the filling time of corn should be prolonged. The area south of the Yellow River should make full use of the favorable weather in northern and western Henan and harvest late. If the land lodging is serious or there is no harvest in the early stage, it is necessary to prepare for stubble removal in advance.

Because of the high risk of low temperature disaster at jointing stage of wheat in winter, it is suggested to plant semi-winter varieties in northern and western Henan, and it is not appropriate to blindly promote weak spring varieties; It is advisable to keep semi-winter varieties and choose weak spring varieties in central and eastern Henan, Nanyang and Zhumadian. Weak spring varieties are mainly in Xinyang area. In the plot where summer corn grows well and there are many green leaves, the ventilation and light transmission conditions in the field should be improved and the filling time of corn should be prolonged.

The area south of the Yellow River should make full use of the favorable weather in northern and western Henan and harvest late. If the land lodging is serious or there is no harvest in the early stage, it is necessary to prepare for stubble removal in advance. Because of the high risk of low temperature disaster at jointing stage of wheat in winter, it is suggested to plant semi-winter varieties in northern and western Henan, and it is not appropriate to blindly promote weak spring varieties; It is advisable to keep semi-winter varieties and choose weak spring varieties in central and eastern Henan, Nanyang and Zhumadian. Weak spring varieties are mainly in Xinyang area.