Corn germination "sit water" to "three levels"
Soaking off
Before the germination, corn must be soaked, that is, about half of the boiled water and the cool water should be put in small tanks, big pots or other containers, and then the seeds should be put into it. The water surface exceeds the seeds by 20-25 cm. At the same time, stir with a wooden stick to make the seeds evenly heated. The temperature of the water should be controlled at 25°C-28°C. When the water temperature is lowered, the water should be heated to raise the temperature. In this way, soaking the seeds for 2-3 hours, when the seeds are swollen, they should be removed immediately for germination treatment.
When soaking, attention should be paid to two technical aspects: First, soaking time can not be too long, so as not to cause hypoxic breathing, reduce the vitality of the seed; Second, pay attention to the water temperature and water, so that the seeds quickly absorb water to ensure that the soaking quality.
Put germination off
The most suitable temperature for corn germination is about 25°C. After about one day, it can sprout most of the time. At the same time, there must be good ventilation conditions in order to promote seed germination and obtain strong shoots.
The specific method of germination is to remove the soaked seeds and control the water, and then place them in a pot or seat, covered with a damp cloth or wet straw bag, and then put on the pods to germinate. Seed heap temperature should be maintained at about 20 °C, check the seed temperature every 3-4 hours, flip up and down once to adjust the air temperature, temperature is too high or too low when the venue must be moved at any time to adjust the temperature. When the seeds are 40%-50% to start mouth whitening, you can pick the seeds. The germinated seeds can then be sown after repeated germinations of 2-3 times.
Two issues should be noticed when germinating: First, after seed germination, timely sowing should be done. If not sowing, the germinated seeds can be placed at 2°C-4°C to control the growth of seed buds, but the time Can not be too long; Second, 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.
Turn off the sowing
The soaking, germination and sowing of corn must be closely linked and not disconnected.
The technical links that should be noticed when corn pregerminate sowing are: First, pick the bud to sow, select the seed that has just screwed the mouth white, remove the seeds that grow too long and yellow, ensure that the strong buds are seeded; the second is to do timely sowing, germination The seeds can not be sown prematurely. Because of the low ground temperature, the seedlings will delay the time of seedling excavation, resulting in uneven seedlings and lack of seedlings. When the local temperature is stable at around 10°C, sowing is the most advantageous. Third, when sitting on water, it is necessary to water first, then put the seed after the water sinks, and timely cover the soil and step on the foot; Do not grind the pit too deep and cover soil too thick. Generally, it is not more than 5 cm.
Nuts are a group of cleistoses that have a hard skin and contain a single seed. It is the essence of plants, rich in nutrition, containing higher minerals, vitamins, oil and protein, eating more can promote growth and development, increase physical fitness. Common nuts include walnuts, peanuts, almonds, cashews, macadamia nuts, pistachio nuts and so on.
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