Slogan to increase corn yield

Farmers' friends all know that a proper late harvest of corn can increase production.

However, how to grasp the late harvest time of this kind of corn? What are the benefits of late harvest of corn? What are the techniques for increasing corn yield by late harvest? Let's have a look.

Benefit of corn 1 late harvest. Late harvest can prolong grain filling time and increase corn yield.

Only when the corn is fully mature can the grain and yield be improved.

If the harvest is delayed by 10 day, the yield per mu can be increased by more than 50 kilograms, and the income can be increased by 100 yuan.

2. Timely late harvest can not only increase the starch content in grains, but also increase the contents of amino acids and protein, thus improving the quality of corn.

3. Corn seeds harvested at the right time and late are full and even.

The number of chaff seeds is obviously reduced, and the grain water content is low, which is convenient for threshing and preservation.

Technology of increasing yield of maize by late harvest from the position of milk line

The order of grain filling in maize is that the middle ear is faster than the lower part, and the lower part is faster than the upper part.

From grain: from the top to the bottom of grain.

In the process of grouting, from the back of the embryo, we can see that the color of the particles changes from deep to linear from top to bottom, and there is an obvious boundary called milk line.

According to observation and measurement, when the milk line is at the top third, the 1000-grain weight is 299 grams, which is 90.9% of the mature grain weight; When the milk line is half of the grain, the 1000-grain weight is 323 grams, which is equivalent to 98.9% at maturity.

When the milk thread is at the bottom and disappears, the weight of 1000 grains is 329 grams, reaching a large value.

Look at the number of green leaves.

According to the investigation, when the bracts of the ear turn yellow and there are still 7-8 green leaves in the middle and upper parts of the plant, the 1000-grain weight is 3 18 g, which is equivalent to 92.9% of the grain weight at maturity. When the bract leaves of the ear are yellow and there are about 5 green leaves in the plant, the 1000-grain weight is 333 grams, which is 98.8% of the grain weight at maturity. When the bracts of the ear are yellow and loose, and the plant has only 1-2 green leaves, the 1000-grain weight is high, which is 345g.

Look at grouting time.

Corn harvest time, from the "three observations", we know that 45-50 days after pollination, the milk line of the grain begins to disappear, the bracts of the ear are yellow and loose, and the green leaves of the plant are less than 5, so it is suitable for harvesting corn at this time, which is the harvest time of corn, with high yield, good quality and great benefits.

The above is the information about the benefits of late harvest of corn and the technology of increasing yield of late harvest of corn provided by Bian Xiao. I hope the above information can help you.