Planting Techniques of Selenium-enriched Purple Sweet Potato

Abstract

The selenium-enriched purple sweet potato planting technology relates to crop planting technology, and is characterized in that it includes the following steps: seedling raising: when the temperature reaches about 15 degrees in mid-February, the seedlings can be raised out of the cellar; ridging: choose deep, loose, live good soil Environment, spring potatoes require deep plowing of 25-35 cm 15 days in advance, deep ditch and large ridges are better, to achieve deep plowing, fine soil, ridge spacing is generally 60-70 cm, ridge height 25-30 cm; transplanting: choose purple sweet potato Transplant short seedlings of 19-24 cm in the first or second section. Generally, it is better to transplant spring potatoes from late April to May; Promptly mention Teng and prevent and control diseases and insect pests; timely harvest and store. The purple sweet potato planted by the present invention has large yield, good quality, unique color and sweet taste, belongs to green pollution-free food, and has high nutritional value. Through the storage technology, the purple sweet potato can be supplied throughout the year, and the market is balanced, which is in line with people's demand for ecological health. consumption concept.

Description

technical field [0001] The invention relates to crop planting technology, in particular to a selenium-enriched purple sweet potato planting technology. Background technique [0002] Purple sweet potato is also called sweet potato, sweet potato and sweet potato. It is native to Central America. In the best food list confirmed by the World Health Organization, sweet potato is at the top of the best vegetable group. my country began to introduce it in 2002. Because the color of sweet potato is violet, it is called purple sweet potato. Purple sweet potato is rich in trace elements, such as iron, phosphorus, calcium, zinc, etc., especially the content of selenium is high. The rhizome is not only a "bonanza" of vitamins, but also an anti-cancer expert. In the past 20 years, more and more foreign research results have shown that sweet potatoes are rich in nutritional value. Sweet potatoes are rich in 18 kinds of amino acids, the content of dietary fiber is 10 times that of rice an...

AI Technical Summary

Problems solved by technology

However, the cultivation of purple sweet potatoes is limited by seasons. At present, the planting area of ​​edible purple sweet potatoes in China is not large, and the distribution is uneven, and the market is in short supply.