Selecting and processing rice seeds for the next crop
To proactively sow rice seeds in time for the season; Here is how to select and soak rice seeds for the season with a high germination rate:
Select rice fields planted in the previous crop with original seeds or certified seeds, advanced technical seeds with good yield and quality to use as seeds for the next crop. Harvest mixed rice plants and weeds before harvesting. Clean the drying yard, threshing and threshing tools, and preserve them to avoid mechanical contamination during harvesting. Choose sunny days to harvest rice seeds. When the rice is harvested, it is necessary to immediately thresh, winnow, remove straw, stubble and empty seeds. If it is sunny, it must be dried immediately. If it rains suddenly, spread the rice into thin layers, avoid piling the rice into high piles, which can reduce the germination capacity of the seeds.
With short-term rice varieties, the growing period in the crop is 90-120 days, when the season has come, requiring seeds immediately, farmers can harvest the red-tailed ripe rice, thresh the rice without drying, soak it immediately in a pond or lake for 72 hours (3 days and 3 nights). If you do not soak the seeds in a pond, river, or lake, you must soak them in a pot, jar, or pot, changing the water regularly every 4 to 6 hours, allowing the water to cover the rice at least 20cm, leave in a cool place, then rinse off the sour water and incubate normally, the germination rate is over 75%.
When the season allows, people need to dry the rice in 3-4 strong sunny days, then spread the rice overnight on the floor, soak it for 72 hours in clean water to get a high germination rate of over 85%.
Farmers can use Lam Thao superphosphate dissolved in water at a concentration of 5-10% or LuFain preparation, soak the rice seeds for 12-24 hours, then continue to soak for 36-48 hours with clean water to further increase the germination rate of the seeds in the next crop, reaching 85-90%.
If possible, it is best to use nitric acid solution HNO3With a concentration of 0.2-0.3%, soak for 24 hours, then soak for another 36 hours with clean water, giving high results for all types of rice (newly harvested, not yet dried or already dried), germination rate reaches > 90%.
Note: With rice that is not really dry, the germination rate is very low even if the above measures are applied./.
According to NNVN Newspaper - LY
