With the improvement of living standards, the use of sweet potatoes is more and more extensive, and the planting area is also growing. So how do you grow sweet potatoes to increase production? This article will systematically introduce high-yield management techniques for sweet potato from seed to harvest.

Sweet potato growth habits:

Sweet potato wants high yield, and the choice of variety is especially important. Farmers' friends can choose the right sweet potato variety according to the actual situation in the local area. It is not a rumor. Sweet potatoes like a warm growing environment, the entire growth cycle needs sufficient light, drought-tolerant, like phosphorus and potassium fertilizer and sandy soil.

Transplanting of sweet potatoes:

In view of the problem of dead seedlings after sweet potato transplanting in recent years, we believe that it is mainly caused by heavy potato, which is easy to cause soil diseases and cause sweet potato seedlings. The roots of these sweet potato sweet potatoes almost no new roots. This is also the main cause of dead seedlings. Therefore, it is recommended that farmers' friends can use the bio-fertilizer or humic acid + carbendazim to carry out the roots when transplanting sweet potatoes, thus playing a role in protecting the roots. Sweet potato is good for fat, so base fertilizer is very important for high yield. It is recommended to apply one car of organic fertilizer (about 200 kg) on ​​one acre of land, and be sure to fully ferment the organic fertilizer, otherwise it will easily cause burning. Then with a bag of potassium sulfate compound fertilizer (100 kg) or superphosphate, plus 50 kg of ammonium bicarbonate, it can fully meet the nutrient supply of sweet potato before the ridge. It is recommended that farmers don't use any fertilizer during the transplanting process. It can be used to supplement the nitrogen fertilizer with 5 kg of urea on an acre of ground after the sweet potato is slowed down. At the same time, in order to improve the commerciality of sweet potatoes, conditional growers can sprinkle grass ash along the furrow before planting, so that the sweet potato surface is smooth and tastes good, and the insect eyes are less conducive to storage.

Control of sweet potato:

After the sweet potato is closed in the ridge, it is very prone to cause a prosperous season in the hot and rainy season. Therefore, it is necessary to control it. It is well known that sweet potatoes have strong growth ability. If they do not turn, the secondary roots will grow at the stem nodes, and these roots will absorb nutrients from the soil, and the supply to the sweet potato will eventually lead to the growth of sweet potatoes. These roots are actually equivalent to a sweet potato, and some even make sweet potatoes, but these sweet potatoes do not have economic benefits at all, and they will consume too much nutrients in the soil, which will eventually lead to the sweet potato of the main root. Yield. This is the main reason for advocating rumbling. If you only consider these two reasons, then there is still a certain scientific principle in turning over. In the past, when there was no chemical control agent, the farmers’ friends used the method of turning over the vines. Now scientific experiments have proved that the farmers’ friends will cause damage to the sweet potato seedlings and leaves and destroy the sweet potato leaves during the process of turning the sweet potato into the sweet potato. Normal growth sequences affect photosynthesis. If the sweet potato is pulled and injured during the turning process, it is easy to infect the bacteria, induce disease, and it will stimulate the sprouting of new axillary buds, causing a larger amount of nutrients to be diverted, which is not conducive to the expansion of sweet potato tubers.

Therefore, we recommend to carry out the vine, how to operate? That is, we gently lift the sweet potato's cockroaches, to what extent? It is only necessary to bring the secondary roots out of the soil, which is more labor-saving than turning over, and the impact on sweet potatoes is basically negligible. Moreover, from a scientific point of view, it is more scientific to think about it than to turn it over, and it has basically no effect on the growth of sweet potato, and turning over will affect the photosynthesis of sweet potato, which is not conducive to the growth of potato tubers. For growers with large planting area, we recommend chemical control, using paclobutrazol and uniconazole to control, so as to avoid the growth of sweet potato and promote the expansion of sweet potato tubers.

Topdressing of sweet potatoes:

Sweet potato topdressing requires farmers to carry out reasonable topdressing according to the growth of sweet potato in the plot. For the weak soil of the plot, 50 kg of compound fertilizer can be applied to promote the growth of sweet potato. For better soil plots, especially sandy soils, it is not necessary to use top dressing. This requires farmers' growers to make reasonable arrangements according to the growth of sweet potatoes.

Sweet potato expansion period:

This period is the most important stage in determining whether sweet potatoes can be produced. Because this period is the expansion period of sweet potato tubers, and the largest demand for sweet potato tuber swelling is potassium fertilizer. The elderly in the countryside know that the sweet potato was planted in the sweet potato during the expansion period, and the grass ash is the first choice. The conditional growers suggested that the acre land should be mixed with 150 kg of grass ash and water for filling. After the filling, the most It is good to water the water once, which is conducive to promoting the absorption of potassium fertilizer. Some friends will say that there are very few firewoods in the countryside. How can there be grass and ash? This is also a real problem, then we can use other fertilizers instead, we recommend an acre of ground with 500 grams of potassium dihydrogen phosphate + 100 ml of chelated calcium for water filling, how to operate? Use our sprayer to remove the nozzle, and then pressurize it after pressing. Also to speed up the absorption, watering is done after the filling. With the development of agricultural modernization, the filling is more troublesome and time-consuming. It is suitable for growers with small planting area. If the planting area is large, it is obviously not suitable. We can use the method of foliar spraying. It is recommended to spray 0.3% phosphoric acid. The potassium dihydrogen solution is sprayed once every 7 days, 2 to 3 times, and can supplement the potassium required for sweet potato expansion.

Sweet potato surface cracking problem:

This issue is important for growers who require high commercial quality. The reason for the cracking of sweet potato is that we mainly have 3 points, water and fertilizer, disease and soil. Therefore, it is recommended that farmers growers to avoid serious diseases in order to avoid disease, and sweet potatoes like to grow soil. Then pay attention to the balanced use of NPK fertilizer. After the sweet potato is closed, try to use less or no nitrogen fertilizer to avoid prolonged growth. For watering, the sweet potato plot can be kept dry and wet, especially during the sweet potato expansion period to avoid large water irrigation. It is recommended not to water the sweet potato 10 days before harvest.

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