Leafy crops are generally cruciferous and belong to cross-pollination crops. It is difficult for farmers to retain seeds for quality control, especially purity. However, if we take a good grasp of several technical aspects during production, we can still obtain high-purity, high-quality self-reserve vegetables.
Specific production procedures: select excellent plant species from the field of production in the fall, and mix and plant in the spring of the second year. The harvest is the seed. In order to improve the seed quality, especially the purity, of the preserved seeds, the following points must be noted:
The choice of the sowing place is to select the land of the non-cruciferous crop before the seed sowing, disinfection, and seed dressing.
Plant selection Select good plants with typical characteristics of the original variety and make good marks. If a large amount of seed is needed, it should be repeatedly mixed and replaced in time before transplanting.
Segregation of leafy vegetable seeds for cross-pollination crops is strictly prohibited. Segregation should be strictly set for self-retained farms, and different isolation methods, such as space isolation, barrier isolation, or net room isolation, etc., should be adopted depending on the size of retained seed.
Intensifying the field to eliminate miscellaneous deficiencies The budding period is a crucial period for removing miscellaneous strains, and it is also a time for identifying miscellaneous strains more easily. Timely removal of miscellaneous strains, inferior strains, and pests that do not meet the typical characteristics of this species. At the same time, attention should be paid to the removal of cross-bred cruciferous plants such as roadsides, kerfs, and nearby wild rapeseeds, in order to ensure the purity of the seed, and to remove them again at the ripening stage.
Harvest in time to prevent seed mixing. After the seeds mature, when the dew is not dry in the morning, they are cut off from the ground, harvested once, harvested, single-sun, and single-stocked to prevent seed mixing.
Variety is regularly updated to prevent seed degeneration from continuous use of leafy vegetable seeds for many years. It is planned to implement periodical replacement of varieties. It is usually renewed one or two times a year, and seeds with high purity and good quality are reserved for breeding. Prevent seed degradation.
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