Using the anti-corrosion technology combined with agricultural control and storage management can reduce the decay rate of sweet potato storage for 3 to 5 months from 50% of the traditional method to 10%.
Integrated prevention and control of diseases of sweet potato include black spot, root rot, stem nematode disease, and soft rot, which require comprehensive measures to prevent and control. (1) Use disease-free seed potatoes. (2) Severe disease fields can rotate with peanuts, corn and rice. (3) Breeding strong seedlings, appropriate early planting, increasing phosphate fertilizers and organic fertilizers to improve plant disease resistance. (4) timely harvest. The temperature generally begins to drop when the temperature drops to 15°C, and the temperature drops to 12°C when the cellar ends. When the temperature drops to 9°C, the tubers will suffer cold damage and become susceptible during storage. Select the sunny morning harvest, drying in the field for 2 to 3 hours, and enter the pit in the afternoon. Requires light planing, light loading, light transport, light discharge, and reduced damage.
Strictly sterilize the cellar and select the first half of the harvest period to build a pit where the terrain is high, soil is hard, and the groundwater level is low. The pit is 4.5 to 5 meters deep, and the pit is 2.5 to 3 meters thick. It is best to use a new cellar. If you use an old cellar, you need to scrape the walls of the cellar and the bottom soil layer 3 to 4 cm to expose new soil, and spread a layer of fine sand in the bottom of the cellar, then fumigation with sulfur for 1 to 2 days, usually 50 grams of sulfur per cubic meter.
Strengthen the management of storage period into the cellar potato tuber should be a short spindle potato or spindle shape, potato weight 200 ~ 800 grams, requires no pests, no cracks, no wounds, no outcrops, no frost damage, anhydrous dip . To prevent black spot disease, soft rot, and other diseases during storage, 70% thiophanate-methyl WP or 50% Carbendazim Suspension can be used to disinfect the potato block by 800 times. Classification into the pit, the potato block into the nylon rope bag layer layer. If scattered into the cellar, potato stacks should be more than 20 cm from the cellar wall. The bottom of the potato heap is covered with a layer of straw, and straw is also placed in the middle to facilitate the spreading of dampness and ventilation. Fresh potato reserves account for 70% of the entire potato pit.
Integrated prevention and control of diseases of sweet potato include black spot, root rot, stem nematode disease, and soft rot, which require comprehensive measures to prevent and control. (1) Use disease-free seed potatoes. (2) Severe disease fields can rotate with peanuts, corn and rice. (3) Breeding strong seedlings, appropriate early planting, increasing phosphate fertilizers and organic fertilizers to improve plant disease resistance. (4) timely harvest. The temperature generally begins to drop when the temperature drops to 15°C, and the temperature drops to 12°C when the cellar ends. When the temperature drops to 9°C, the tubers will suffer cold damage and become susceptible during storage. Select the sunny morning harvest, drying in the field for 2 to 3 hours, and enter the pit in the afternoon. Requires light planing, light loading, light transport, light discharge, and reduced damage.
Strictly sterilize the cellar and select the first half of the harvest period to build a pit where the terrain is high, soil is hard, and the groundwater level is low. The pit is 4.5 to 5 meters deep, and the pit is 2.5 to 3 meters thick. It is best to use a new cellar. If you use an old cellar, you need to scrape the walls of the cellar and the bottom soil layer 3 to 4 cm to expose new soil, and spread a layer of fine sand in the bottom of the cellar, then fumigation with sulfur for 1 to 2 days, usually 50 grams of sulfur per cubic meter.
Strengthen the management of storage period into the cellar potato tuber should be a short spindle potato or spindle shape, potato weight 200 ~ 800 grams, requires no pests, no cracks, no wounds, no outcrops, no frost damage, anhydrous dip . To prevent black spot disease, soft rot, and other diseases during storage, 70% thiophanate-methyl WP or 50% Carbendazim Suspension can be used to disinfect the potato block by 800 times. Classification into the pit, the potato block into the nylon rope bag layer layer. If scattered into the cellar, potato stacks should be more than 20 cm from the cellar wall. The bottom of the potato heap is covered with a layer of straw, and straw is also placed in the middle to facilitate the spreading of dampness and ventilation. Fresh potato reserves account for 70% of the entire potato pit.
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