The cultivation methods of sweet potato include straight insertion, oblique insertion, horizontal insertion, hook insertion, bottom insertion, and improved horizontal insertion. Planting methods have a direct impact on the rooting of potato seedlings, and the formation and enlargement of tubers. The main reason is that the temperature, humidity, and gas conditions of different soil layers in the yam pods are different. Generally, they are 8 to 10 cm deep from the topsoil. The most suitable tuber, in this range, the soil temperature, air and water more coordinated, large temperature difference between day and night, the formation and expansion of the root tube. Therefore, under the premise of ensuring survival, we should try to plant as little as possible so that the potato seedlings are grown in the soil with loose soil, good ventilation, and large temperature difference between day and night. The most commonly used method in Guangdong is oblique interpolation, followed by horizontal interpolation (including improved horizontal interpolation) and line interpolation.
1, oblique interpolation.
Potato seedlings have 3 to 4 soil nodes, which are deep and shallow, and the number of single plants is medium. Generally, they are more common than the straight-inserting method, and they are less frequently inserted than horizontal ones. The upper node potato is larger than the lower node. The oblique plugging method of potato seedlings has strong adaptability to adverse environmental conditions, in particular, the survival rate of drought-resistant seedlings is higher than that of shallow horizontal interpolation method, and it is easy to plant, saves labor, and the output is relatively stable. With other measures, it is still available. A large area of ​​high yield.
2, horizontal interpolation (including improved horizontal interpolation).
The 4 to 5 sections of potato seedlings were all distributed about 5 cm from the ravioli surface. All the sections were suitable for tuber crops, and the number of potatoes was large, and the tubers were more uniform in size. After the planting, the seedlings were sprayed with water to protect the seedlings. After they survived, they grew rapidly, early branching and early tuberization, and the tubers expanded rapidly. Due to the labor involved in planting, this method is generally used in high yielding potato fields.
3, line interpolation method.
The potato seedlings are inserted into the deeper soil layer, and only 1 to 2 nodes are distributed in the soil layer suitable for tuber potato. Therefore, the number of tubers per plant is generally small, and the tubers are concentrated in the upper nodes. This method of planting is more suitable for drought-free conditions, is conducive to drought, seedling survival, and stable yield.
Regardless of the method used for planting, it must be kept moist for 3 to 5 days after planting to ensure survival and achieve the purpose of seedlings, seedlings, and seedlings.
1, oblique interpolation.
Potato seedlings have 3 to 4 soil nodes, which are deep and shallow, and the number of single plants is medium. Generally, they are more common than the straight-inserting method, and they are less frequently inserted than horizontal ones. The upper node potato is larger than the lower node. The oblique plugging method of potato seedlings has strong adaptability to adverse environmental conditions, in particular, the survival rate of drought-resistant seedlings is higher than that of shallow horizontal interpolation method, and it is easy to plant, saves labor, and the output is relatively stable. With other measures, it is still available. A large area of ​​high yield.
2, horizontal interpolation (including improved horizontal interpolation).
The 4 to 5 sections of potato seedlings were all distributed about 5 cm from the ravioli surface. All the sections were suitable for tuber crops, and the number of potatoes was large, and the tubers were more uniform in size. After the planting, the seedlings were sprayed with water to protect the seedlings. After they survived, they grew rapidly, early branching and early tuberization, and the tubers expanded rapidly. Due to the labor involved in planting, this method is generally used in high yielding potato fields.
3, line interpolation method.
The potato seedlings are inserted into the deeper soil layer, and only 1 to 2 nodes are distributed in the soil layer suitable for tuber potato. Therefore, the number of tubers per plant is generally small, and the tubers are concentrated in the upper nodes. This method of planting is more suitable for drought-free conditions, is conducive to drought, seedling survival, and stable yield.
Regardless of the method used for planting, it must be kept moist for 3 to 5 days after planting to ensure survival and achieve the purpose of seedlings, seedlings, and seedlings.
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