Five prevention mistakes of potato sowing in spring
From：null
Views：17 Time of publication：2020-09-20
First, do not control the harm of underground pests.
If the underground pests are not well controlled or not controlled, the underground pests will bite off the tuber buds or eat the potato flesh and infect the mixed bacteria in the soil, resulting in uneven emergence. The way to avoid it is to spread the poisonous soil into the cultivation ditch.
Second, seed tuber is infected.
Such as black neck disease, ring rot disease, late blight, etc., so that seed potatoes can not sprout and rot in the soil or grow disease, weak seedlings. The way to avoid the disease is to introduce from the disease-free areas, root absolutely with diseased potato into the field. Before cutting, the seed tubers were dried for 2 days. The cutting tools were strictly disinfected. After cutting, the seeds were soaked with high-tech lipid membrane to avoid the infection of pathogens.
Third, seed soaking injury.
When soaking seeds with gibberellin and fungicide, the concentration is too high and the time is too long. The way to avoid it is to use the new high fat film to cover the seeds, which can drive away the underground diseases and insect pests, block the virus infection, do not affect the germination and imbibition function, strengthen the respiratory intensity, and improve the germination rate of seeds.
Fourth, the soil moisture is poor when farming.
The depth of cultivation is not consistent with that of covering soil. When the soil moisture is poor, depending on the weather or drought to a certain degree of watering, emergence is uneven. To avoid the lack of soil moisture, cultivation and soil depth should be consistent. After soil preparation, spray the soil surface with the new high lipid membrane 600 - 800 times liquid. It can keep moisture content, water and moisture, transpiration, sun protection, drought resistance, heat preservation and anti freezing, prevent soil layer, asphyxiate and obstruct the source of diseases and insect pests, and improve the rate of emergence.
Fifth, pay no attention to fertilizer harm.
When the fertilizer is too close to the seed block, especially when the core fertilizer and seed fertilizer encounter the lack of soil moisture, the fertilizer damage is more likely to occur. The way to avoid it is to apply the core fertilizer to the bottom of the ridge or the middle of the two small rows, and the seed fertilizer should be applied between the seed blocks with a smaller amount.
