Fulvic acid compound fertilizer suitable for corn planting in northeast China and preparation method

Abstract

The invention relates to a fulvic acid compound fertilizer suitable for corn planting in northeast China and a preparation method thereof. The fulvic acid compound fertilizer is prepared from the following raw materials in parts by weight: 40 to 60 parts of urea, 10 to 25 parts of monoammonium phosphate, 10 to 20 parts of potassium chloride, 1 to 5 parts of ammonium chloride, 0.1 to 2 parts of stone powder, 0.4 to 1 part of a trace element synergistic bag, 0.3 to 1.0 part of potassium fulvate, 0.01 to 0.05 part of a nitrification inhibitor and 0.5 to 2.0 parts of an oily anti-caking agent; thetrace element synergistic bag is prepared from 0.2 to 0.5 part of zinc sulfate monohydrate and 0.2 to 0.5 part of borax; the fertilizer has the advantages of effective utilization rate, satisfactionof nutritional requirements of corn in the whole growth period in northeast China, good growth vigor in the seedling stage of corn, stimulation of corn root growth, long-acting fertilizer release prevention in the later period, labor saving and obvious yield increase effect.

Description

Technical field [0001] The invention belongs to the technical field of fertilizers, and specifically relates to a fulvic acid compound fertilizer suitable for corn planting in the northeast region and a preparation method. Background technique [0002] Chemical fertilizer is an important means of agricultural production and the "food" of grain. Chemical fertilizer has played an irreplaceable role in promoting grain production and agricultural production development. According to expert analysis, the contribution rate of chemical fertilizer application to grain production is generally more than 40%. However, the problem of irrational application of chemical fertilizers is related to my country’s high pressure to increase grain production, low fertility of cultivated land, high intensity of cultivated land utilization, and small scale of farmers’ production. It is also related to the separation of fertilizer production and management from agricultural needs, unreasonable fertilizer ...

AI Technical Summary

Problems solved by technology

Fulvic acid has great solubility and can be combined with a variety of substances. At present, slow-release long-acting agents (loss control agents, urease inhibitors, nitrification inhibitors), biostimulants (amino acids, alginic acid), medium Trace elements are compounded with fulvic acid, and there are relatively few studies on the compounding of different fulvic acid raw materials

In addition, the corn season crops in Northeast China have a long growth cycle. Generally, they are sown in May and harvested in October. The growth cycle is long. One-time fertilization has the problem of late defertilization and yield decline. Generally, topdressing is carried out during the corn filling period in this area.