Short dip and more dews: continuous soaking time is too long to easily cause hypoxia after seed germination, Chen seeds embryos have weak viability, especially intolerance to hypoxia. The short dip can meet the needs of water, and more dew can prevent hypoxia. The specific method of short dipping and dew exposure is: after disinfection, the seeds should be rinsed with clean water, exposed for 8 hours, and then exposed for 3 hours to 4 hours per 6 hours to 8 hours of soaking, and the total soaking time should not exceed 30 hours (including disinfection). . The color of the chaff is darker, the wrinkles are not obvious, the abdomen is bright, and the rice grains are easily broken. This indicates that the seeds have been saturated with water and can be transferred to the germination stage and germinated according to conventional methods. Pulverized coal ash: The use of hot and humid coal ash germination can harm the contradiction between warm and hot. The specific approach is: Prepare sieving coal ash and hot water according to the ratio of seed, coal ash and water 1:1.2:0.4; drain the seeds that have been sterilized and washed with clean water, immerse them in warm water at 50°C, preheat them, and put them on. After entering the seed, the water temperature is about 35°C, and it is preheated for 30 minutes. The coal ash is wetted with hot water of about 80°C, mixed into a hot and wet fly ash, and then the preheated seed is drained. Quickly mix warm coal ash, and uniform, temperature guarantee 35 °C -37 °C, piled into a corner of the room, the upper cover film insulation moisturizing, and capping sacks. With a small number of seeds, the ash can be placed in a woven bag, placed in a basket with straw handles, grazing grass, and covered with plastic film. After about 24 hours, after the seeds in the middle layer of the stack are broken, the intermediate seeds are exchanged with the peripheral seeds, and the temperature is maintained at 30°C-32°C for about 36 hours. If the temperature of the seed pile is low, the glass bottle containing about 35°C water can be buried in the seed heap without warming the breast. If the coal ash is too wet, a suitable amount of fine coal ash may be added. For example, if the coal ash is too white, it may be sprayed with warm water of about 40°C. Warm water rapid germination: The specific method is to put the seeds that have been disinfected and rinsed with clean water into a woven bag, and put it in a warm water tank or bucket containing about 50°C. The water temperature was adjusted to 35 °C -36 °C, cover and soaked for 4 hours after the removal of drained, hot pack film 5 -6 layers, placed in sheltered dry place. Covered with straw. Every 8 hours, the seed bag is put into the warm water of 35°C and soaked for 2 minutes to 3 minutes. After draining, it is packed and then piled according to the previous method. The heat preservation germination is continued. After 48 hours—52 hours, you can call Break bud rate reaches 95% of buds.
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