Special fertilizer suitable for acid soil

Abstract

The invention discloses a special fertilizer suitable for acid soil. The special fertilizer is prepared from 3,4-dimethylpyrazole phosphate, humic acid, calcium oxide, ammonium hydrogen carbonate, urea, diammonium phosphate and potassium nitrate. The special fertilizer suitable for acid soil can be used for improving the acid soil, increasing the pH value of the soil and reducing aluminum and heavy metal damage as well as soil-borne diseases caused by serious soil acidification and can also provide long-term and stable nutrients for the growth of crops.

Description

technical field [0001] The invention relates to a chemical fertilizer, in particular to a special fertilizer suitable for acidic soil. Background technique [0002] At present, due to excessive and unreasonable application of chemical fertilizers, sewage irrigation, acid rain and other reasons, a large area of ​​soil acidification in my country has been caused. The area south of the Yangtze River in my country is surface acidified. Become the outbreak area of ​​soil acidification, which is point acidification. Among them, the application of chemical fertilizers has become the main cause of soil acidification due to its universality, continuity, slowness, potentiality, and irreplaceability. The application of simple fertilizers such as ammonium sulfate, monoammonium phosphate, ammonium chloride, ammonium nitrate, etc. or compound fertilizers / compound fertilizers made of these chemical acidic fertilizers will cause a direct pH drop on the soil; and potassium sulfate , Potassi...

AI Technical Summary

Problems solved by technology

At present, there are also some measures and products to adjust soil acidity, such as direct application of lime, etc. These measures have the following disadvantages: 1. Unsustainable, farmers only apply some alkaline materials such as lime when serious damage occurs, and after short-term effects It will no longer be applied, and acidic fertilizers or acid rain will continue to enter the soil; 2. Increase labor costs: when applying alkaline materials, additional labor costs need to be invested, which is also a reason why farmers cannot continue to apply; 3. Bring negative effects , the application of these alkaline materials is limited by the actual pH of the material itself and the soil, so it is difficult to control the amount of application. of plants and microorganisms causing damage