As the saying goes: Good planting good seedlings, good seedlings yield high. How to choose spring seeds, the following describes the six methods: (1) cold water bath. The seeds were put into clean water, and the full seed particles sank, while the seeds, sick seeds, and sclerotia were floating on the water. Simply picking up the floating seeds achieves the purpose of selection. (2) hot water bath. Generally, rice seeds are soaked in hot water of 50-54 degrees for 10 minutes; skin-thick cotton seeds are soaked in hot water of 5O-6OC for 30 minutes. (3) brine bath. The seeds were placed in saline, and the inferior species were forced to surface by the use of a characteristic of a large salinity. (4) medicine bath. Adding trisodium phosphate, sodium hydroxide, potassium permanganate and other drugs in water can both play a role in selecting seeds and kill bacteria. (5) hormone bath. Seed soaking with solutions of booster, paclobutrazol, chlormequat, etc. can make seedlings robust and fully emerged. (6) Coating agent. The selected seeds, coated with a coating agent, can both improve the disease resistance of the seeds and promote the seeds to be fat.
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