Sweet potato soil-less cultivation method, soil-less cultivation of sweet potatoes, soil-less planting techniques for sweet potatoes.

Potato Cultivation Method without Soil

Today, we introduce the related knowledge of potato cultivation without soil, and the specific contents are as follows:

Potato Cultivation Method without Soil

For potatoes cultivated without soil, choose potatoes without rot. If the potatoes have sprouted and both ends have buds, place the end with more buds upwards. After the roots grow, the whole plant should be supported off the water surface, leaving only the roots in the water. It is important to note that the water for hydroponic plants should preferably be tap water that has been left to stand, not freshly drawn, as freshly drawn tap water contains chlorine, which is detrimental to plant growth.

Potato Yield without Soil Cultivation

Potato cultivation without soil is good. By controlling environmental factors such as light, nutrients, and temperature, the hydroponic system provides an excellent growing environment for the crop, resulting in better growth and higher quality. The growth period for potatoes cultivated without soil is typically between 110 to 160 days, and the starch content can reach 47%, with a drying rate of 60%. The yield per plant can be as high as 120 jin, and the annual yield can be 600 jin.

Potato Cultivation Techniques without Soil

For potatoes cultivated without soil, the substrate should allow the potato to grow suspended in the air. It needs to be initially grown in a nutrient solution to develop its root system and then provided with sufficient water and nutrients. When choosing a nutrient solution for potatoes cultivated without soil, dilute potassium sulfate monohydrate to a concentration of one thousandth and pour it into a spray bottle. Then, spray it evenly over the entire plant every half month. Key points in the process of cultivating potatoes without soil include:1. Pruning and removing lateral branches: After the potato seedlings grow into trees, pruning and removing lateral branches are crucial. About half a month after transplanting, new branches will grow, and at this stage, it is necessary to start training the vines.2. Top-dressing: After training the vines, to enhance the plant's disease resistance and promote root growth, it is necessary to supplement trace elements. Dilute potassium sulfate monohydrate to a concentration of one thousandth and pour it into a spray bottle. Then, spray it evenly over the entire plant every half month.3. Flowering period management: Sweet potatoes belong to the morning glory family, and their flowers resemble morning glories. However, sweet potato flowering is not a good sign as it competes for nutrients. Generally, we manually remove the flowers to reduce nutrient waste. Since sweet potatoes only flower when exposed to shorter daylight hours, we can inhibit flowering by supplementing light.4. Fruit-bearing period management: Unlike conventional sweet potato cultivation techniques, sweet potato trees require aerial vine pressing. Two months after transplanting the sweet potato tree, it can be pressed down to set fruit. First, prepare the nutrient soil by mixing perlite, vermiculite, and peat in a 1:1:1 ratio, stirring evenly, and then placing it in a hanging pot. Then, select a robust vine from the current year and pull it down about ten centimeters, removing the leaves. Use a rope or wire to hang the hanging pot filled with nutrient soil on a trellis, and bury the vine about two to three centimeters deep in the nutrient soil. Then, water thoroughly.5. Pest and disease control: Since sweet potato cultivation is carried out under facility conditions, and sweet potatoes themselves are relatively disease-resistant, as long as the nutrient solution concentration, indoor temperature, and light conditions are controlled, diseases generally do not occur. Additionally, to ensure the green and pollution-free nature of sweet potatoes, when pests occur, biological control methods such as yellow sticky traps are generally used.6. Harvesting: Sweet potatoes can be harvested about a month after being placed in the hanging pot. Two people should cooperate during harvesting. Use scissors to cut upwards along the bottom of the hanging pot. After cutting, gently remove the nutrient soil with your hands, and the attractive sweet potatoes will be revealed. Then, use scissors to cut off the tubers one by one along the root, removing all fibrous roots. Finally, place the vine that has produced sweet potatoes back on the trellis to continue growing.The key points in the technique of cultivating potatoes without soil are to choose potatoes without rot, as moldy potatoes will not sprout. If the potatoes have already sprouted and both ends have buds, place the end with more buds upwards. After the roots grow, the whole plant should be supported off the water surface, leaving only the roots in the water. If it is placed in water, it will rot, which is detrimental to growth.

Precautions for Potato Cultivation without Soil

1. Water quality: The water for hydroponic plants should preferably be tap water that has been left to stand, not freshly drawn. Freshly drawn tap water contains chlorine, which is detrimental to plant growth, but tap water that has been left to stand can be used for plants.2. Light: Hydroponic sweet potatoes require a large amount of light to meet their needs. When raising them, they require sunlight throughout the day.3. Temperature: Sweet potatoes thrive in high temperatures and require a growing temperature of no less than 20 degrees Celsius to grow normally. If the temperature is below 20 degrees Celsius, their growth rate will be slow, or even stop growing.4. Fertilization: Hydroponic sweet potatoes do not require too much nutrition, as the nutrients in the water are basically sufficient to meet their needs. Fertilize once a month, and each month, add liquid fertilizer to the water. Over-fertilization will increase their metabolic burden and affect growth.

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Knowledge Expansion

How Many Crops of Sweet Potatoes Can Be Grown in Hainan in a Year?

The climate in Hainan is warm, but usually, only one season of sweet potatoes is cultivated. The growth cycle of sweet potatoes depends on the planting season. If planted in spring, the growth cycle is approximately 160 to 200 days. If planted in summer, it is about 110 to 120 days. Sweet potato cultivation is not suitable in winter in Hainan, so it is generally planted in spring and autumn. Additionally, sweet potatoes have strong adaptability to the environment and resistance to adversity. They require a lot of fertilizer but are also drought-resistant and easy to manage.

What Are the White Crystalline Spots on Sweet Potato Leaves?

There is no need to worry about white crystalline spots on sweet potato leaves, as they are not caused by disease. They may be secretions from the leaves. When this occurs, slightly changing the care methods can help them gradually recover. Be careful not to overwater, especially in cold weather. Increase water when water consumption is high in hot weather, otherwise, excessive water can lead to soil moisture and various pests and diseases, affecting growth.

Is Hydroponic or Soil Cultivation Better for Sweet Potatoes?

Hydroponic and soil cultivation of sweet potatoes each have their advantages and disadvantages. Hydroponic cultivation appears cleaner and has higher ornamental value, but growth is slow and not as robust. Soil cultivation provides more nutrients, which is beneficial for root growth and later growth of the plant, making it look more lush. Place it in a sunny location and fertilize with a thin compound fertilizer every half month during the growing period.

Which Is Better: Hydroponic or Soil Cultivation of Sweet Potatoes?

Hydroponic Sweet Potatoes

Hydroponic sweet potato cultivation method:Hydroponic sweet potatoes can be placed in water without sprouts, with the end with sprouts facing upwards, or with fewer leaves placed in water and the end with more leaves left. Prepare a transparent container, place the sweet potato inside, add an appropriate amount of water, and ensure proper temperature. Change the water regularly and add some nutrient solution as needed.

Precautions for sweet potato hydroponic cultivation:The most critical aspect during sweet potato hydroponic cultivation is to change the water regularly. If the water is turbid, it will contain many bacteria that can harm plant growth. Therefore, change the water once a week. Do not cultivate in dirty water. Add some nutrients when changing the water.

Soil Cultivation of Sweet Potatoes

Soil cultivation of sweet potatoes method:Soil cultivation of sweet potatoes is relatively simple. First, prepare suitable soil by mixing garden soil, leaf mold, and river sand evenly. Then, bury the sweet potato flat in the potting soil, water thoroughly, place it in a well-ventilated, bright location for care, wait for it to sprout, and then place it in a sunny location. After leaves grow, fertilize with a thin compound fertilizer every half month.

Precautions for sweet potato soil cultivation:For sweet potato fields with good soil moisture, when planting, it is better to water after transplanting or not to water at all. For fields with poor soil moisture, it is necessary to water in advance, and the amount of water should be more. In any case, wait until the water is completely absorbed by the soil before covering it, making sure it is covered tightly to prevent rapid evaporation of water, leading to sweet potato drought and seedling death.