The yield per mu of sweet potatoes is affected by factors such as climate, soil, and variety, and is usually more than 2,000 catties. Scientific management is the key to improving yields, including the selection of excellent varieties, reasonable fertilization, scientific watering and pest control. In terms of planting techniques, dense planting, land preparation, and film mulching cultivation all help to increase yields. In summary, the combination of scientific management and planting technology is an effective way to increase the yield of sweet potato, which is helpful for farmers to increase their income and promote agricultural development.Sweet potato, as an important food crop, is widely cultivated in China and has important economic value and nutritional effects. The yield per mu of sweet potato is one of the important indicators to measure the planting efficiency, and its yield is affected by a variety of factors, and the use of scientific planting methods can also effectively improve the yield.
The yield per mu of sweet potatoes varies depending on the region, variety, climate, soil and other factors. Generally speaking, in a suitable growth environment, the yield per mu of sweet potatoes can reach more than 2,000 catties, or even more than 3,000 catties. Under unfavorable conditions, the yield per mu is only a few hundred catties.
1.Geographical environment.
Climatic conditions: The climate suitable for growing sweet potatoes is a warm and humid climate, with a suitable temperature of 20-30 degrees Celsius in summer and an annual precipitation of about 800-1200 mm. Temperatures that are too high or too low, as well as dry or humid climates, can affect sweet potato growth and yield.
Soil conditions: Sweet potatoes prefer loose, fertile, well-drained soils with a pH of 55-6.5. The soil is most suitable for growth.
Variety selection: Different varieties of sweet potatoes vary in yield, so it is crucial to choose the best varieties that are suitable for the local climate and soil conditions.
Fertilization management: Reasonable fertilization can improve the fertility of the soil and promote the growth of sweet potatoes. Generally, during the growth period of sweet potatoes, the effect is better when organic fertilizer and mineral fertilizer are applied in moderation.
Water management: Sweet potatoes have a high demand for water, especially in the early stages of growth and root expansion. Therefore, it is necessary to water properly and keep the soil moist but not too wet to avoid a decrease in yield due to lack of water or waterlogging.
Pest control: Sweet potatoes are susceptible to a variety of pests and diseases during their growth, such as Spodoptera exigua, potato thrips, etc. Taking scientific control measures, such as spraying pesticides and removing pests and diseases in a timely manner, can help ensure yields.
Dense planting and thinning: According to soil fertility and variety characteristics, reasonable dense planting or thinning technology can effectively improve the yield per unit area.
Land preparation: Thorough land preparation before planting, loosening the soil and plowing deeply, which is conducive to the growth of sweet potatoes and the formation of tubers.
Film mulching cultivation: In cold areas or dry land, the use of film mulching cultivation technology can increase soil temperature, maintain soil moisture, promote the growth of sweet potatoes, and increase yield.
As an important food crop, sweet potato has a wide range of planting areas and consumer markets in China. In order to obtain a higher yield per mu of sweet potato, farmers need to pay attention to geographical and environmental factors, select appropriate varieties and fertilization management, and also need to master scientific planting technology and do a good job in pest control. Only in this way can we effectively increase the yield of sweet potatoes, increase the income of farmers, and promote the development of agriculture.