Organic-inorganic compound fertilizer capable of regulating acidity, supplementing magnesium and preventing plant yellowing and preparation method thereof

Abstract

The invention discloses an organic-inorganic compound fertilizer capable of regulating acidity, supplementing magnesium and preventing plant yellowing and a preparation method thereof. The fertilizeris prepared from the following materials in percentage by mass: 40-50% of magnesium hydroxide, 1-5% of mesoporous magnesium oxide, 20-35% of molasses fermentation liquor, 1-5% of a trace element aminoacid chelate, 1-5% of hydrolyzed animal protein powder, 1-5% of coco coir, 1-3% of activated carbon and 1-5% of seaweed meal, wherein trace elements in the trace element amino acid chelate comprise iron, manganese, zinc and copper. The magnesium hydroxide used in the invention has a large specific surface area and can adsorb more nutrients; the fertilizer has a targeting effect, can promote ATP synthesis and promote plant growth and development, and has good acid regulating and magnesium supplementing effects; and the fertilizer further contains various trace elements, and can be well absorbed by plants through amino acid chelation so as to achieve a good anti-yellowing effect.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to an organic-inorganic compound fertilizer for regulating acidity, supplementing magnesium and preventing plant yellowing and a preparation method thereof. Background technique [0002] Yellowing is a symptom of plants. It refers to the phenomenon of yellowing or yellowing and greening of part or all of the stems and leaves. Generally, there are two main reasons for yellowing: (1) It is caused by pathogenic bacteria, such as Phytophthora, root rot, etc. are caused by the destruction of root tissue, and the leaves appear chlorotic and yellow; (2) caused by lack of elements, the characteristics of "yellowing" caused by different elements are different, and the whole leaf is light yellow when nitrogen is deficient; potassium deficiency The tips of old leaves turn yellow, and gradually wither and necrosis; when magnesium is deficient, the midrib becomes chlorotic and yellow; whe...

AI Technical Summary

Problems solved by technology

However, due to the long-term application of a large amount of NPK ternary compound fertilizers in farmland, and the utilization rate of NPK of ordinary ternary compound fertilizers is generally low, and the more fertilizers are applied, it has not been able to further increase the yield of crops. On the contrary, it caused the loss of a large amount of fertilizer nutrients, which in turn polluted the soil and groundwater. The amount of organic fertilizer decreased sharply, the large-scale planting of high-yield crops and the increase of the multiple cropping index, the calcium and magnesium nutrients in the soil were greatly depleted, and the load on cultivated land was increasing. The acidification of the soil has intensified, and the soil has been short of calcium and magnesium for a long time. At present, the soil has reached the point where it must be improved. The acidification is serious, the compaction is serious, and the aggregate structure of the soil has changed seriously, which has restricted the growth and quality of plants.