When is the best season for farmers to grow sweet potatoes?

Old people often say that "mango seeds plant potatoes weighing ten kilograms, and summer solstice roots plant potatoes." The meaning of this sentence is that planting sweet potatoes before and after awn seeds can grow to ten kilograms, but if you plant sweet potatoes in summer to the future, you will probably only get one rhizome. In fact, the meaning is very simple, that is, planting sweet potatoes can not be postponed until the summer solstice at the latest. This year's awn is planted in early June, so sweet potatoes can still be planted in June. Someone must be curious. In the south, sweet potatoes generally don't start to grow seedlings in February and March, and then transplant in April. Can it be planted in June?

In fact, sweet potatoes are divided into spring potatoes and summer potatoes. Due to the different temperatures in different places, the planting season is also different. In southern China, spring potatoes are generally transplanted from mid-late April to early May. Because the average temperature required for sweet potato growth is above 15℃, too low temperature will lead to delayed growth or lack of plants. Moreover, the transplanting of spring potatoes should not be too early, and certainly not too late. If it is too early, the growth will be slow, and if it is too late, it will affect the yield. The data showed that transplanting sweet potatoes every night would reduce the yield by more than 1%. Therefore, if it is spring potato, it is best to transplant it in the middle and late April, and it is best to transplant it in rainy weather.

The so-called summer potato must have been planted in summer. Dad said that sweet potatoes could be planted until July at the latest. However, summer potatoes are usually planted after cutting spring wheat, about the beginning of June. Because of the different planting time, the harvest time of sweet potato is also different. But generally speaking, sweet potatoes are harvested around 10. But if it is spring potato, the best harvest time should be the end of September or the beginning of 10. Summer potatoes will be delayed for about ten days, and the best harvest time should be around the end of 10. Of course, all these need to be judged according to the planting time in different regions, but in general, 10 is the best time for sweet potato harvest.