The corn germination and sitting water is an effective technical measure to resist the spring drought and ensure that all seedlings and strong seedlings are sown at one time. In order to do a good job of corn germination and sitting water, we should mainly focus on the following “three levelsâ€:
First, the live soaking off: corn must be soaked before germination, the specific method of soaking is: the boiling water and half of the cold water is better, with a small tank, pot or other utensil Shengsheng against water, and then will be selected With good seed input, the surface of the water should be more than 20-25 cm above the seed, and at the same time, stir it with a wooden stick to make the seed evenly heated. The temperature of the water should be controlled at 25-28 °C, so that soaking for 2-3 hours, when the seed water swelling, it should be immediately removed out for germination.
Two aspects to be noticed in soaking: First, the soaking time should not be too long, so as not to cause hypoxic respiration of the seeds, and reduce the vitality of the seeds; Second, pay attention to the water temperature and water, so that the seeds quickly absorb water to ensure that the soaking quality .
Second, to live germination off: corn germination when the most appropriate temperature is about 25 °C, the specific method of germination is: remove the soaked seeds and control the water, placed in the pots or seats, covered above Wet cloth or wet grass bag, and then placed on hot pods for germination. The temperature in the seed heap should be kept at about 20°C. Check the temperature of the seed every 3-4 hours and turn it up and down once to adjust the temperature. When the temperature is too high or too low, always move the place to adjust the temperature. When 40-50% of the seeds begin to turn white, the seeds can be sowed. Then the ungerminated seeds were washed once with warm water and germination continued. After two or three repetitions of this, all germinating seeds can basically finish their buds.
There are two problems to be noticed in the germination: First, after seed germination, timely sowing should be done. If not sowing, the germinated seeds can be placed at 2-4°C to control the growth of seed buds, but time is not allowed. Too long; the second is to pay attention to the germination temperature, it is best to do a small amount of seed test, to be obtained after the experience of formal germination, so as not to cause undue losses.
Third, the live sowing Guan: Corn soaking, germination and sowing, must be close to the convergence, not out of touch. Precipitation sowing should pay attention to the technical aspects: First, picking buds sowing, we must choose to just wring the mouth exposed white seeds, remove the germination is too long, yellow color and two earned seeds to ensure strong seeds under the species. The second is to do timely sowing, germination of the seeds can not be sown too early, because the early sowing due to low ground temperature, will delay the emergence of seedlings, uneven emergence, increase the weak seedlings, generally local temperature stability at around 10 °C, sowing The most beneficial; Third, when sitting in water, we must first grind water, wait until the water sinks and then put seeds, and timely cover soil tightly, step on the foot with a light; Fourth, when sowing can not plan pit too deep, cover soil Can not be too thick, generally not more than 5 cm is appropriate.
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