Spring sowing and selecting six methods
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How to choose the spring seeds, the following six methods are introduced: The cold water bath put the seeds into the water, the full seed particles sink, while the seed, sick seeds and sclerotia are floating on the water. Simply picking up the floating seeds achieves the purpose of selection. Hot water bath Rice seeds are usually soaked in hot water at 50°C to 54°C for 10 minutes. Skin thick cotton seeds are soaked in hot water at 50°C to 60°C for 30 minutes. The salt bath puts the seeds into the brine, which uses the characteristic of a large salinity to force the inferior species to surface. The medicine bath adds drugs such as trisodium phosphate, sodium hydroxide and potassium permanganate in the water, which can play a role in selecting seeds and kill bacteria. Hormone bath soaked with solutions such as methiazin, paclobutrazol, and chlormequat can make young seedlings robust and fully emerged. The coating agent will select the seeds and coat them with the coating agent, which can not only improve the disease resistance of the seeds but also promote the seeds to be fat.