Breeding good sweet potato seedlings, is related to the economic benefits of planting sweet potatoes, therefore, sweet potato planting farmers attach great importance to the spring of sweet potato seedling pre-problems like that, sweet potato seedling pre-problems should pay attention to what problems? How can I raise good seedlings to ensure the survival rate of sweet potato planting later? The selection of sweet potato root mass. Choose what kind of sweet potato root block pre-sprouting, is to cultivate sweet potato seedling important link, here contains two aspects: sweet potato is generally obtained after the frost period, but used to cultivate sweet potato seedling sweet potato root block, must be obtained before the frost period, otherwise, pre-sprouting sweet potato block seedling nursery period is easy to rot, resulting in pre-sprouting is unsuccessful: secondly, the selection of pre-sprouting seedling potato block should be the size of the beginning of the end, preferably long, so as to satisfy the number of sprouting and The requirements of the vigorous seedling.

Before breeding seedlings, it is important to select potato seeds. When choosing sweet potato seeds, you don't have to pick the one with a bigger head, but you must choose the one that is not damaged to be the seed potato. After the sweet potato is selected, the head is turned upwards, inserted in the nest of organic fertilizer, two in a nest, covered tightly with soil, in fact, the sweet potato seedling is very simple. The important thing is to master the temperature in the seedling period. The ambient temperature is too high to burn the buds, low temperature sweet potato buds do not grow and develop. Ambient temperature is generally controlled at 15 to 25 degrees in the middle of the best. Some people say: under the red buds without sheep manure and gravel can not? That's right sand can help raise the temperature, goat dung can prevent cold and warmth, for sweet potato seed pre-sprouting to give organic chemical nutrients. Secondly, the choice of sweet potato seed is also important.

Found that there are dry lumps, thick lumps, black spots and its sugar core, black core, etc. resolutely can not do seedlings. With these bad sweet potatoes as seedlings will not only transfer the next generation of pathogens, but also affect the quality of the next generation of sweet potatoes. Well, this is the sweet potato seedlings to pay attention to a few problems. Nowadays, they are usually planted a little bit in their own soil, the purpose is the convenience of their own food. So intend to give birth to sweet potato sprouts before, can find a few larger insulation box body,

You can also be in the yard sunrise area, surrounded by bricks, followed by paving a layer of fine sand, sweet potatoes next to each other inserted in the sand, and then sprinkle water, masked plastic film, a few days after the sweet potato sprouts grow out. After the sweet potato sprouts grow out, at least once a day to spray sprinkle water, must not lack of water, or will be directly related to the growth and development of sprouts. Sweet potato sprouts born in the yard, due to the sunlight, so it will be more thick than born in the bed, the survival rate is also high.