Water soluble fertilizer additive, water soluble fertilizer composite containing same and application of water soluble fertilizer composite

Abstract

The invention discloses a fertilizer additive, a fertilizer composite containing the additive and application of the fertilizer composite and particularly relates to a water soluble fertilizer additive, a water soluble fertilizer composite containing the water soluble fertilizer additive and application of the water soluble fertilizer composite. The water soluble fertilizer additive comprises, by weight, 10 parts of urea phosphate, 1-2 parts of guar gum, 0.5-1 part of polyacrylamide, 0.5-1 part of potassium polyacrylate and 0.1-0.5 part of sodium of polyaspartic Acid. The water soluble fertilizer additive can effectively reduce the frequency of the phenomenon that a water dropper is blocked when water soluble fertilizer containing the water soluble fertilizer additive is applied to fertigation, and reduce the probability of the phenomenon that crops do not absorb the obtained water soluble fertilizer. Meanwhile, the water soluble fertilizer additive can effectively solve the problem that the use ratio of phosphorus fertilizer in the water soluble fertilizer is low.

Description

technical field [0001] The invention relates to a fertilizer additive, a fertilizer composition containing the additive and its application, in particular to a water-soluble fertilizer additive which can be used in drip irrigation and fertilization of crops, a water-soluble fertilizer composition containing the additive and its application. Background technique [0002] Irrigation and fertilization are artificial cultivation techniques that provide nutrients and water to crops and promote crop growth. Irrigation can be divided into flood irrigation, sprinkler irrigation, drip irrigation, infiltration irrigation, etc. Among them, drip irrigation is the method of using pipes to send water to the roots of crops through drippers or drip holes with a diameter of about 10mm for local irrigation. An effective water-saving irrigation method, the water utilization rate can reach more than 95%. Drip irrigation and fertilization is the use of water-soluble fertilizers, most of which a...

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Problems solved by technology

[0005] 2. In drip irrigation and fertilization, water and fertilizer are concentrated in a small area, and long-term high-concentration fertilization will cause certain "fertility" to the root system of crops

[0006] 3. In addition, as a common problem in agricultural irrigation, phosphorus fertilizer is easily fixed by the soil, making it difficult to effectively supply crop roots. Therefore, excessive application of phosphorus fertilizer is often required, and the fertilizer utilization rate is low

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