Fertilizer for reducing cadmium content of paddy rice

Abstract

The invention provides a fertilizer for reducing the cadmium content of paddy rice. The fertilizer for reducing the cadmium content of paddy rice is mainly prepared from stone snail powder, pumpkin peels, mozzie buster, anthurium andraeanum, sludge, fermentation strains and traditional Chinese medicine residues. A preparation method of the fertilizer for reducing the cadmium content of paddy rice comprises the following steps: mixing the pumpkin peels, the mozzie buster, the anthurium andraeanum, and the traditional Chinese medicine residues with the sludge, and performing stacking fermentation; then putting the materials after the stacking fermentation into a static fermentation bag for fermentation; pouring the materials in the static fermentation bag and the stone snail powder into a coarse powder pulverizer to perform pulverization after completion of fermentation so as to obtain a coarse powder fertilizer; and finally, pouring the coarse powder fertilizer into a fine powder pulverizer to perform pulverization so as to obtain a fine powder fertilizer, and performing weighing and packaging to obtain a finished product fertilizer. The fertilizer provided by the invention is simple and convenient to produce, is convenient to use, does not influence normal productivity of a paddy field, has an obvious effect of reducing cadmium, improves quality safety of rice foods, and can effectively improve soil properties, thereby achieving multiple purposes of production increase, a synergistic effect and environmental protection.

Description

【Technical field】 [0001] The invention belongs to the field of fertilizers, in particular to a fertilizer for reducing cadmium content in rice. 【Background technique】 [0002] Rice originated in China, and its cultivation can be traced back to Dao County, Hunan Province about 14,000 years ago. After rice was widely planted in China, it gradually spread westward to India and was introduced to southern Europe in the Middle Ages. Today, my country's rice planting area is about 430 million mu, with a total output of about 189 million tons. [0003] Cadmium can be enriched in organisms and enter the human body through the food chain to cause chronic poisoning. After cadmium is absorbed by the human body, it forms cadmium-sulfur protein in the body, which selectively accumulates in the liver and kidney. Among them, the kidney can absorb nearly 1 / 3 of cadmium in the body, and is the "target organ" of cadmium poisoning. As cadmium damages the renal tubules, the patient develops ...

AI Technical Summary

Problems solved by technology

Second, cadmium in untreated or substandard industrial wastewater enters the soil along with sewage irrigation

In addition, the application of chemical fertilizers containing cadmium or improper fertilization, as well as long-term fertilization and large-scale fertilization will deepen the deposition of cadmium in the soil.