When we recently conducted technical training for farmers, we found that many farmers harvest corn, either by watching others, and they are also rushing to catch up with it, or they are free to collect their family members, so as not to delay going out to work, not knowing that "corn is timely." Late harvest can increase production." Some farmers know this truth, but it is not particularly clear when it is appropriate to receive it.
What are the benefits of corn late harvest?
The corn harvest can not only prolong the grain filling time, increase the corn yield, but also make full use of the late light and heat resources. The maturity of the corn kernel is significantly improved, the grain filling degree is better, and the protein and amino acid content of the grain can be increased. According to the test data analysis, from September 24th to October 6th, for every 1 day of postponed harvest, the 1000-grain weight can be increased by 4.19g, and the yield per mu is increased by 11.04kg. The post-harvest harvest is about 12 days, and the 1000-grain weight is increased by 50.3g. The output increased by 132 kilograms; the thousand-grain weight harvested around September 24 was the lowest, and the 1000-grain weight harvested around October 6 was the highest. At this time, the corn milk line has disappeared, the black layer has also appeared, and the corn has basically entered the ripening period, 1000-grain weight. The level is basically the largest. The corn kernels in the late harvest are full and full, the size is uniform, the small grain and the glutinous grain are obviously reduced, the grain water content is low, the grain is easy to be threshed and stored, and the quality of the product is obviously improved.
When is the best harvest?
The standard for maturity of corn kernels is related to the grain filling line, ie the grain milk line. This milk line is formed during grain filling, and there is a gradual process of its appearance, movement, and disappearance. When the grain is grouted to form starch, it is first concentrated on the top of the grain, and the top starch accumulates to a certain degree and becomes yellow, forming a yellow-white boundary line with the lower white starch of the unmodified starch, that is, the milk line. During the maturity stage of maize, it needs to pass through three stages: milk ripening stage, wax ripening stage and ripening stage. Because corn is different from other crops, the grain grows on the ear, and it is not easy to fall off after ripening. The ripening process can be completed on the plant. Therefore, the ripening period is The best time to harvest corn. Premature harvesting, the water content in the corn kernels is too large, and thousands of grains are greatly reduced after drying. When the corn enters the ripening stage, the middle and lower leaves of the plant are yellow, the base leaves are dry, the leaves are yellow-white and loose, the grain mammary glands disappear, the black layer appears, hardens, and the inherent color of the variety is present. good. After the ripening period, the corn is prone to lodging, and the ear of the corn is prone to mildew, which reduces the quality of the corn.
Color coated steel plate:
Color-coated steel plates are a new type of construction materials which is rapidly emerged in the international market in recent years. It is refined by chemical treatment, initial coating, fine coating and other processes on the continuous group. The coating quality is far more uniform, stable and ideal than the quality of single-piece spraying or brushing on the surface of the shaped metal.
The color-coated steel plate has excellent decoration, formability, corrosion resistance, strong coating adhesion, and can maintain novel color for a long time. Because color-coated steel plate can replace wood, it has good economic effects such as high-efficiency construction, energy saving, pollution prevention,it has become an ideal construction material nowadays.
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