The selection of improved varieties is one of the important measures for increasing rice yield. Therefore, it is extremely important to do well in the selection and retention of conventional rice varieties. It must not be taken lightly. How to do good seed selection for late rice field production? According to the author's experience, we should do the following four notes.
1, pay attention to choose a good field. To select good field blocks for late seeding from fine conventional species grown in the evening and to select fields with robust plants, balanced growth, thick grains, consistent maturity, and freedom from pests and diseases. the quality of. The time of field selection should be during the rice yellow ripening period.
2, pay attention to impurity removal. After the field plots have been selected, serious efforts should be made to remove the miscellaneous strains. The cleaning work should be meticulous, and it is best to repeat it several times to completely remove the miscellaneous plants to ensure the purity and purity of the seeds.
3, pay attention to the single receipt of the sun. Determine the field of preserved seed, harvest time to single receipt of the sun, harvesting equipment to clean, can not be mixed into the miscellaneous valley; drying the ground must be clean, avoid mixing other varieties in the sun, to separate another sun, to ensure purity.
4, pay attention to storage and storage. Seeds should be fully sun dried, so that the water content below 13%, storage of the seed warehouse (bag) to spray disinfection, to prevent insects feeding, but also pay attention to rodents, moisture, to prevent rodent damage and mildew. It should also be checked regularly during storage to ensure the safety of the seeds.