Special fertilizer for ferro-selenium-rich sweet potatoes, and preparation method thereof

Abstract

The invention relates to a special fertilizer for ferro-selenium-rich sweet potatoes. The fertilizer comprises the following raw materials: ferrous sulfate, selenite or selenite, potassium fulvic acid, diammonium phosphate, superphosphate, and potassium sulfate. The preparation method comprises the following steps: taking raw materials according to weight parts, mixing and pelletizing ferrous sulfate, selenite or selenite, potassium fulvic acid, diammonium phosphate, superphosphate, and potassium sulfate, to obtain the product. The special fertilizer for ferro-selenium-rich sweet potatoes is taken as a base fertilizer in transplanting of sweet potatoes and as a topdressing fertilizer in moving of sweet potatoes, the yield of the sweet potatoes and content of organic ferrous and organic selenium can be obviously increased, and high-quality sweet potato products can be obtained.

Description

technical field [0001] The invention relates to a special fertilizer for sweet potatoes, in particular to a special fertilizer for sweet potatoes rich in iron and selenium for the cultivation and production of sweet potatoes, and a preparation method thereof. Background technique [0002] Selenium is deficient in most areas of my country, and iron is generally deficient in dry land, and sweet potatoes are cultivated crops in dry soil; the prior art lacks special fertilizers for sweet potatoes that add iron and selenium elements and high-yield technical formulas; there is no related ferrous sulfate and selenite in China. Or selenate, potassium fulvic acid, diammonium phosphate, superphosphate, the report of the iron-selenium-rich sweet potato special fertilizer of formula. Contents of the invention [0003] Aiming at the deficiencies in the production process of sweet potatoes in the prior art, it fills up the gap in the country for the progress of sweet potato production te...

AI Technical Summary

Problems solved by technology

[0002] Selenium is deficient in most areas of my country, and iron is generally deficient in dry land, and sweet potatoes are cultivated crops in dry soil; the prior art lacks special fertilizers for sweet potatoes that add iron and selenium elements and high-yield technical formulas; there is no related ferrous sulfate and selenite in China. Or selenate, potassium fulvic acid, diammonium phosphate, superphosphate, potassium sulfate formula rich in iron selenium sweet potato special fertilizer report