Sweet potatoesIt is a warm-loving crop, and it has high temperature requirements during growth. Therefore, the best time to raise seedlings should be in the season when the temperature is suitable. Generally speaking, in the southern region, it is suitable to be carried out before and after the rainy seasonSweet potatoesof nursery work;In the north, it is usually inQingming FestivalIt is completed before and after the rain solar termSweet potatoesof nursery work;Choosing the right nursery time can provide a good growing environment and helpSweet potatoesRobust growth of seedlings.
Before raising seedlings, we need to select high-quality onesSweet potatoesSeed potatoes, and disinfect it to ensure the smooth progress of the seedling stage. First of all, choose those that are better preserved in wintering storageSweet potatoesSeed potatoes。theseSeed potatoesIt should be of a fairly uniform size, brightly colored skin, smooth and without woundsPests and diseases。The weight is usually around 100 200 gramsSweet potatoesSeed potatoesMost suitable, and those who have been chilled or soakedSweet potatoesis not suitable as a personSeed potatoesSelection. Pick the good oneSeed potatoesIt should be exposed to the sun for a day to destroy some germs. This can then be done by configuring 01%Potassium permanganateAqueous solution or 1000 times liquidCarbendazimRightSweet potatoesSeed potatoesCarry out disinfection treatment. willSweet potatoesSeed potatoesSoak it directly in the liquid medicine, take it out after about 30 to 50 minutes, and then place it on the seedling bedSeed potatoes
In order to provide a good growing environment, we need to choose the right seedbed conditions. First, choose an east-west, leeward plot that has not been planted with potatoes. The terrain should be flat and dry, with good drainage. The size of the nursery bed should be based on:Seed potatoesDepending on the number, the general width is about 1 12 meters. Make a pendulum on the seedling bed and cover it with plastic film or use a double shed and double film to cover it (the greenhouse buckles the small shed). Cover the seedling bed with about 8 cm of farmhouse manure that has been decomposed and dried and crushed, and use it togetherCarbendazimThe solution is sterilized.
After making the seedbed, you need to put itSeed potatoesPlace it on the bed and manage it appropriately. In general, spread a layer of organic fertilizer on the bottom, and then maintain a suitable moisture level on the seedling bed, and maintain a moderate amount of wet and dry alternation. PlacementSeed potatoes, you can choose a straight, oblique or flat row, but pay attention to the large potato pieces are denser, and the small potato pieces are thin. In addition, 500 times the liquid can be sprayedCarbendazimCarry out sterilization, and inSeed potatoesCover the top with a layer of mulch to keep it moist and insulated, and then cover the canopy film.
During the nursery period, it is very important to control the temperature and humidity of the seedbed, which has a direct impactSweet potatoesThe growth of the seedlings. Sweet potatoesThe seedling temperature should be kept above 16 degrees but not more than 35 degrees, and the environment above 16 degrees is favorableSweet potatoesgermination. If the temperature is below 15 degrees, it may causeSweet potatoesHands are quickly affected by cold and difficult to emerge. Therefore, it is important to ensure that the appropriate seedling temperature isSweet potatoesThe key to the success of seedlings.
In addition,Sweet potatoesIt is mainly relied on in the process of germinationSeed potatoesThe internal nutrients are supplied for growth, but proper supplementation of nutrients can promote seedling growth, so it is beneficial to maintain a suitable seedbed humidity of about 80%.Sweet potatoesThe seedling grows because as the seedling grows larger, the more water it needs. In addition to the above-mentioned seedling raising methods, it can also be adoptedSweet potatoesRoot seedlings or hibernationSweet potatoesseedling raising and other methods, but relativelySweet potatoesFor block seedlings, the technical requirements are high.
Through the above introduction, we have learned:Sweet potatoesSeedling time and seedling skills. Sweet potatoesThe best time to raise seedlings should be carried out in the season when the temperature is suitable, and you can choose to do it before and after the rainy season in the southern region, and usually in the northern regionQingming FestivalComplete seedling raising before and after the valley rain solar term. Before raising seedlings, it is necessary to select high-quality onesSeed potatoesAnd disinfection treatment is carried out to ensure the smooth progress of seedling growth. When choosing the conditions of the seedbed, it is necessary to pay attention to the direction of the bed, the selection of the plot and the drainage situation. Attention should be paid to the placement and management of seedling beds to maintain appropriate wetness and moderate wet-dry alternation. At the same time, control the temperature and humidity of the seedbedSweet potatoesgrowth is crucial. Finally, there are other seedling raising methods to choose from, such as:Sweet potatoesRoot seedling and hibernationSweet potatoesSeedling breeding, etc. Through scientific and reasonable seedling raising methods, it can be improvedSweet potatoessurvival rate and yield.
1. Suitable seedling raising time for sweet potatoes
Sweet potatoesThe right time to raise seedlings is in the season when the temperature is suitable. Generally in the southern region, seedlings are raised before and after the rainy season;In the north, it is usually inQingming FestivalBefore and after to the valley rain solar term to complete the seedlings.
2. Seedling raising method of sweet potato
Choose PremiumSeed potatoesAnd carry out the disinfection treatment: choose a well-stocked oneSweet potatoesAsSeed potatoes, the skin color is bright, smooth, nonePests and diseasesand wounds, and expose to the sun for a day. Then use 01%Potassium permanganateAqueous solution or 1000 times liquidCarbendazimRightSweet potatoesSeed potatoesCarry out disinfection treatment.
Choose the right seedbed: Choose a plot that runs east-west, has a leeward and sunny direction, and has not been planted with potatoes as the seedbed. The terrain should be flat, high and dry, and well drained. The width of the nursery bed is about 1 12 meters, make a pendulum and cover it with plastic film or double shed double film. PlacementSeed potatoes: Lay a layer of organic fertilizer on the seedling bed before placing itSeed potatoesSeed potatoesIt can be arranged in a straight, diagonal or flat row, but the large pieces should be densely arranged, and the small pieces should be placed thinly.
Manage the nursery bed: maintain the appropriate moisture level and replenish nutrients in a timely manner. Can be sprayedCarbendazimThe solution is disinfected, and the mulch film is covered to keep it moist and insulated. Control the temperature and humidity of the seedbed, keep the temperature above 16 degrees but not more than 35 degrees, and the humidity is about 80%. NotePests and diseasesPrevention and control: regular inspection and treatmentPests and diseasesso as not to affect the seedling process and yield.