Composite chelate full nutritive plant growing agent and its preparing method

Abstract

The composite chelate plant growing agent is prepared through dissolving ternary phosphonic acid, quaternary hosphonic acid, quinary phoshponic acid or their mixture as chelating agent in alkali potassium or sodium hydroxide solution; regulating the pH value of the solution; and adding calcium nitrate, potassium nitrate, magnesium nitrate, ammonium nitrate, ammonium sulfate, ferrous sulfate, manganese sulfate, zinc sulfate, copper sulfate, magnesium chloride, boric acid, calcium molybdenate, potassuim carbonate, calcium oxide, potassium oxide and magnesium oxide in certain proportion. It provides plant with necessary elements and various nutrients for plant to grow in difference stage.

Description

technical field

[0001] The invention relates to a compound chelating full-vegetative plant growth agent and a preparation method thereof. It belongs to the preparation technology of plant nutrient. Background technique

[0002] The plant nutrient chelated with organic liquid has the advantages of good water solubility, easy flow, stable structure, not easy to be fixed by soil, high plant absorption rate, obvious effect of increasing production and convenient use, and its superiority is obviously higher than that of inorganic fertilizers. However, the use and development of organic chelating nutrients in China are currently restricted by two factors: one is the high cost of the chelating agents used, so that the production cost of the prepared chelating nutrients is several times or even several times higher than that of inorganic micro-fertilizers. Ten times; the 2nd, the contained element system in the prepared chelated nutrient is 2-3 kinds of s...