How to choose the spring sowing seeds, the following describes the six methods: cold water bath put the seeds into the water, full of seed particles sink, while the seeds, seeds and sclerotia like floating in the water. Just to remove the floating seeds to achieve 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.

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