Summer sowing corn intercropping is a simple way to pollinate the ears of the tassels in the corn when the tassels have just exposed the parietal lobe, and when there is no loose powder, the tassels are removed by interlaced or interspersed plants, and the pollen of the tassels in the adjacent rows or surrounding areas is used. Easy production increase measures. Generally, the grain can be increased by 30-50 kg. Why can corn increase by the interlacing? There are three main reasons:

1, reduce nutrient consumption, early flowering mature corn is a cross-pollination crop, relying on wind pollination, its pollination rate of 95% from different plants. That is to say, the ear of corn can not be fertilized by the pollen of this plant. After the emasculation of the corn, the nutrients are concentrated to supply the ear, which can promote the development of the ear, and the filaments are extracted in advance for 2-3 days to increase the pollination time of the ear and filament. That is to achieve the effect of early flowering, early pollination, early maturity, increased grain and increased ear weight.

2, ventilation and light transmission, improve light energy utilization, after corn emasculation, reduce the shading of the tassel to the leaves, reduce the coverage of the leaves by a large number of pollen, greatly improve the light transmission conditions of the upper leaves of the ear; By reducing the plant height by 30-40 cm, Tianwen formed multiple air ducts and improved the ventilation conditions of the upper leaves. Therefore, the light energy rate is increased, the photosynthesis function is enhanced, more photosynthetic products can be produced, grain filling is provided, empty stalks, baldness are reduced, grain weight is increased, and yield is increased.

3, alleviate all kinds of pests, and it is beneficial to increase production and increase income. It is proved that when corn is emasculated, the concentration of corn borer and ear mites overlaps. Because the corn borer is more harmful in the young heart, when people go to the male, they should pay more attention to firmly remove the tassels of the heartworm and the scorpion. In this way, it will receive the effect of both male and worm control, which will increase production and income.

In the actual operation process, you should also pay attention to the following three points:

First, go to the male to be divided in time: the corn to the male must grasp the tassel just 1/3 of the time to start, that is, hold it by hand or peel off the two leaves by hand to expose the tassel Drop it. It’s not good too early or too late. If you can't pull out the tassels too early, you will bring the leaves. If it is too late, it will lose its effect. At the same time, because the time of corn tassel extraction is not uniform, the first tassel is generally drawn, and it is appropriate to take 3-4 times every 2-3 days, even if it is suitable for individual weak plants, Take out. Also pay attention to the choice of sunny days, generally 9 am - 4 pm is appropriate, in order to facilitate the rapid healing of wounds.

Second, to go to the male to see the land, the variety of flexible control: hilly land, low-lying land, rare planting land, small tassels can be less or not to go. At the same time, the weak strains of pests and diseases should be removed, and more robust plants should be kept. The ground should not go, and the middle should go more, and the scattered plots should be less or not. More resistant varieties, high-yield plots go.

Third, the ratio of emasculation should be appropriate: the amount of pollen in corn tassels is large, and generally 20 to 30 million pollen can be produced per tassel, and each tassel can satisfy at least 3 to 5 ears of pollination. It is enough to have more than 1000 effective pollen in one ear. So there is no need to worry about the difficulty of pollination after going to the male. Because the corn fringe can be pollinated anywhere after the leaves are removed. The pollination ability can be maintained for 10-15 days, that is, the filaments remain vivid until they are pollinated, and once they are pollinated, they stop to elongate and begin to wilting. Therefore, the proportion of emasculation is generally not more than half. If you have a cloudy day and a long-term drought or high-temperature calm wind days, you can master less, up to 1/3, in case of normal weather and high-yield varieties can be removed 2/3.

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