Preservation of sweet potatoes

Sweet potato alias sweet potato, low price, wide range of uses, rich in nutrients. When the sweet potatoes are grown, they must also be adapted to local conditions and reasonably managed according to the characteristics of each stage of growth. The key to increase production of sweet potatoes is to balance the growth of the above ground and underground parts at different times and to coordinate the contradiction between the ground and the underground so as to achieve high yields. In addition, the storage of sweet potatoes after harvest is also a key technology for farmers because it is related to the period of economic utilization of sweet potatoes. In this article, Microbiology Fertilizer (click here for details) Expert Gymmare will explain the points of sweet potato planting and storage.

红薯储藏

1. Early management of sweet potato planting Early stage fertilization of sweet potatoes is dominated by nitrogen fertilizers, and nitrogen fertilizer should be applied in an appropriate amount. In order to promote growth in all directions, we recommend the use of compound fertilizers with high nitrogen content for raising seedlings. In some plots with poor fertility and insufficient basal fertilizer, Miaofei should be applied early. After the seedlings have survived, they can be topdressed. The principle of top dressing is to apply about 10 kilograms of ammonium sulfate or decomposed feces per mu. Open a hole next to the back of your horse, apply water after the application, and then cover the soil with the infiltration of fertilizer. Here we must pay attention to the natural decay of the feces must be fully cooked, otherwise it will cause burning seedlings and pathogens to bring. In order to avoid the above phenomenon, farmers can use the special fermentation agent such as the golden treasure organic fertilizer starter for organic fertilizer production, because the fertilizer starter operation is more mature, can almost avoid the situation of burning seedlings, and the fertility is better than ordinary rotten fertilizer. If the sweet potato grows more vigorously in the plot, it is not necessary to chase the seedlings again to prevent the mid-season stems from becoming long.
2. Mid-term management of sweet potato planting Mid-term growth of sweet potato refers to the period from ridge closure to dense growth of stems and leaves. The main point of the mid-field management is to control the stems and leaves and promote the rapid expansion of tubers. These include the timely removal of weeds, the dense growth of field weeds, and the vigorous growth of potato seedlings to compete for water and fertilizer. If they are not pulled out in time, they are very detrimental to the growth of sweet potatoes. Turnover is prohibited in normal and dry years. The purpose of turning rakes is generally to prevent vines from growing fine roots and knotted sweet potatoes, dispersing nutrients, and affecting the expansion of the stalks. This is only aimed at the situation of successive years of rain. If there is no such phenomenon, do not turn over so as not to damage the leaves and reduce the production.
3. The management of sweet potatoes in the late stage of sweet potato management The main points of management are to protect the leaves, protect the root system, and promote weight gain. The measures mainly include the prevention of premature morbidity by applying top dressings outside the roots, strengthening the management of pests and diseases, and extending the life span of green leaves. Phosphate fertilizer and potash fertilizer are dominant if fertility grows on the ground when fertilizing. If the yellow part of the aboveground leaves is yellow, nitrogen fertilizer should be considered to protect the green leaves. When the field occurs with Spodoptera litura, leaf leaf insects, hawkmoths, etc., spraying should be promptly conducted for prevention and treatment.
4. Sweet potato harvesting and storage considerations Sweet potato harvesting must seize the opportunity, early harvest will affect the yield, too late harvest vulnerable to cold damage. In general, the daily average temperature dropped to 15°C to harvest. At this time, the growth of sweet potato roots has ceased and harvesting should begin. Action should be light at the time of harvest to avoid bruising and prevent bacteria from invading and causing rot. Rotten sweet potatoes not only affect the quality, but also directly affect the later storage. The chips should be cooled in the field for a short time and then bagged. The sweet potatoes that are removed need to be put into the pit on the same day. The sweet potato temperature is 4°C. Once the cold damage occurs, sweet potatoes will soon rot in the cellar. If you cannot enter the pit on the same day, be sure to cover it with straw and plastic film to prevent frost and dew. It can also be sealed and stored after the feed fermentation agent is fermented into feed in a sealed fermentation tank. Management details can be consulted: Beijing Huaxia Kangyuan Technology Co., Ltd. telephone toll-free hotline

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