The quality of seeds is closely related to the emergence of watermelons and their subsequent growth and development. Therefore, before the seeding, the watermelon must be well seeded, selected, and disinfected so that its buds are neat and its growth is uniform.
First, the sun seed: 3 to 5 days before sowing, the seeds purchased in the sun in the sun for 2? 3 days before and after noon every day for 3? 4 hours. When drying seeds, they should not be exposed on the concrete floor, slate, or iron plate. It is best to put them on the raft and straw mat. Turn them once every 1-2 hours to make them evenly tanned.
Second, seed disinfection: In order to prevent seed bacteria, reduce and prevent the occurrence of diseases, seeds must be disinfected before sowing. Seed disinfection can be divided into two kinds of physical disinfection and pharmaceutical disinfection.
1. Physical disinfection includes drying seeds, soaking in warm water and high-temperature hot seeds.
Soaking in warm water: the most common method for disinfecting watermelon seed. When disinfecting, soak the watermelon seed in warm water at 54 to 55°C for 20 minutes, then wash it and wash it again.
High-temperature hot seeds: The seeds that have been picked and sunburned are wrapped in coconut cloth or towels, about 100 grams per bag of seeds. First put a pot of cold water, a pot of boiling water, and then put the wrapped seeds into the boiling water to dip, and immediately take out and dip in cold water, so repeated three times, you can achieve the purpose of disinfection. It must be noted, however, that each scald time in boiling water does not exceed half a second. Seeds treated by this method germinate early and budding neatly.
2. Disinfection of the carbendazim soaked seeds: Use 50% wettable carbendazim powder to make 500 times liquid, then soak the seed in it for 1 hour, remove and rinse, and soak in germination to prevent anthrax.
Dyson ammonium soaking species: with 45% Daisen ammonium water dubbed 500 times the liquid, the watermelon seeds were soaked in 0.5 ~ 1 hour, remove and rinse with water can be.
Trisodium phosphate method: Immerse the watermelon seeds with 10% trisodium phosphate solution for 20 minutes, remove and wash them in clean water, and have good control effect on watermelon mosaic virus.
Antibacterial agent 401 seed soaking method: Use 10% antibacterial agent 401 dubbed 500 times liquid, soak the seeds for 30 minutes, remove and wait to use, can kill the seeds with the wilt, anthrax, and other pathogens. When the medicine is used, it is necessary to carefully grasp the concentration of the medicine so as to achieve the purpose of disinfection.
First, the sun seed: 3 to 5 days before sowing, the seeds purchased in the sun in the sun for 2? 3 days before and after noon every day for 3? 4 hours. When drying seeds, they should not be exposed on the concrete floor, slate, or iron plate. It is best to put them on the raft and straw mat. Turn them once every 1-2 hours to make them evenly tanned.
Second, seed disinfection: In order to prevent seed bacteria, reduce and prevent the occurrence of diseases, seeds must be disinfected before sowing. Seed disinfection can be divided into two kinds of physical disinfection and pharmaceutical disinfection.
1. Physical disinfection includes drying seeds, soaking in warm water and high-temperature hot seeds.
Soaking in warm water: the most common method for disinfecting watermelon seed. When disinfecting, soak the watermelon seed in warm water at 54 to 55°C for 20 minutes, then wash it and wash it again.
High-temperature hot seeds: The seeds that have been picked and sunburned are wrapped in coconut cloth or towels, about 100 grams per bag of seeds. First put a pot of cold water, a pot of boiling water, and then put the wrapped seeds into the boiling water to dip, and immediately take out and dip in cold water, so repeated three times, you can achieve the purpose of disinfection. It must be noted, however, that each scald time in boiling water does not exceed half a second. Seeds treated by this method germinate early and budding neatly.
2. Disinfection of the carbendazim soaked seeds: Use 50% wettable carbendazim powder to make 500 times liquid, then soak the seed in it for 1 hour, remove and rinse, and soak in germination to prevent anthrax.
Dyson ammonium soaking species: with 45% Daisen ammonium water dubbed 500 times the liquid, the watermelon seeds were soaked in 0.5 ~ 1 hour, remove and rinse with water can be.
Trisodium phosphate method: Immerse the watermelon seeds with 10% trisodium phosphate solution for 20 minutes, remove and wash them in clean water, and have good control effect on watermelon mosaic virus.
Antibacterial agent 401 seed soaking method: Use 10% antibacterial agent 401 dubbed 500 times liquid, soak the seeds for 30 minutes, remove and wait to use, can kill the seeds with the wilt, anthrax, and other pathogens. When the medicine is used, it is necessary to carefully grasp the concentration of the medicine so as to achieve the purpose of disinfection.
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