Black corn is a combination of fragrant, sweet, and sticky, highly nutritious, highly nourishing, and highly immune. It is loved by consumers. The six key technologies for planting black five meters are summarized as follows: 1. Seed treatment. Sown 7 days before sowing. The seeds were separated by size and soaked in 0.2%-0.4% potassium dihydrogen phosphate solution for 12 hours. Drain the water and put it on the place where the temperature was 30°C. After 80% of the seeds were white, the seeds could be sowed. Second, isolation planting. Black corn and other corn must be isolated and planted in two ways: distance isolation and time isolation. Distance isolation does not plant other corn varieties within 400 meters of the field where black corn is grown. Time isolation is to sow other corn varieties within 20 days before and after sowing of black corn, staggering the timing of corn flowering and pollination to avoid stringing. Third, in addition to fighting. Black corn has many characteristics of tillering and delivery, and in order to ensure the production and grade of the ear, it is necessary to remove the fleas as soon as possible. Try to avoid damaging the main stem and leaves in addition to snoring. Fourth, artificial pollination. The density of black corn is large, the leaves are shielded from each other, pollination is poor, and the appearance of diminutive baldness is easy to occur. Therefore, artificial pollination must be carried out during the flowering period, carried out every day from 10-11 am, for 3-5 consecutive days. Fifth, safe application of pesticides. Black corn is mostly used for fresh food. Therefore, when pesticides are applied, care should be taken not to use pesticides with large residual amounts and long residual periods, and pesticides should not be applied 20 days before listing to prevent people from having pesticide poisoning after eating fresh spikes. Six, timely harvest. 22-28 days after the ear spun, the sugar content is high, the skin is thin, the quality and taste are all excellent, and it is suitable for harvesting at this time.
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