34results about How to "Reduce the content of heavy metal elements" patented technology

The invention discloses a special compound premix for a fermented feed. The special compound premix is prepared from the following main components by weight percentage: 2-2.5 percent of fermented culture, 8-10 percent of enzyme preparation, 30-37.5 percent of fermentation promoter and 50-60 percent of feature pack aiming at different animals (piglets, middle and big pigs, sows, laying hens, dairy cows and fattening sheep). When the fermented feed is used in a large scale for a long time in daily ration of animals, the fermented feed is matched with the special compound premix to use, so that the normal supply of amino acids, vitamins and microelements for animal bodes can be ensured. Moreover, the premix does not contain hormones, antibacterial agents, antioxidants and flavoring agents, and the copper and zinc contents are lower than the national standard. The special compound premix has important meanings for providing safe meat, egg and milk foods, avoiding environmental pollution, realizing green no-antibiotic and hormone breeding, and ensuring the healthy and sustainable development of animal husbandry and aquaculture.

The invention relates to a bone meal containing fertilizer and a preparation method therefor, and belongs to the technical field of fertilizer. The bone meal containing fertilizer is prepared from the following raw materials in parts by weight: 8-13 parts of bone meal, 6-10 parts of humic acid, 5-8 parts of distiller's grains, 7-12 parts of cassava residues, 5-10 parts of edible fungus residues, 47-55 parts of livestock manure, 3-5 parts of orange peel, 0.5-1 part of expanded vermiculite, 20-25 parts of crop stalk power, 3-5 parts of potassium chloride and 4-6 parts of superphosphate. The prepared fertilizer has comprehensive nutrients, and has stable and long-lasting fertilizer efficiency. By applying the fertilizer to crops, the crop production cost is reduced; the crops are promoted to mature early; the crop quality and the soil properties are improved; the formation of a soil granular structure is promoted; the soil is enabled to become soft; the soil structure is improved; and the soil fertility is also improved.

The invention relates to use of mild alkali-affected soil conditioner in the aspect of improving soil. The mild alkali-affected soil conditioner comprises the following raw materials, by weight, 70-80 parts of desulfuration waste, 5-10 parts of inorganic accelerator and 10-20 parts of organic accelerator. The mild alkali-affected soil conditioner uses calcium ions in the desulfuration waste to substitute exchangeable sodium so as to reduce alkalization degree of the soil. Simultaneously, by means of a good pore structure and physical performance of the organic accelerator, a physical behavior of the soil and a granular structure of the soil are improved, a pH value of the soil is reduced, and soil fertility is improved. The inorganic accelerator can also improve the granular structure of the soil. The soil fertility can be further improved by combining inorganic fertilizer and organic fertilizer, and nutritious ingredients are provided for crop growth. The mild alkali-affected soil conditioner can effectively overcome the defect of unbalanced nutritious elements in the soil, improves soil fertility, loosens the soil, improves fertilizer efficiency, and enables a soil salinization phenomenon to be avoided fundamentally.

The invention discloses special fertilizer for rice. The special fertilizer for the rice comprises urea, monoammonium phosphate, potassium chloride, compound sodium nitrophenolate, fermented animal manure, turf, silicon fertilizer, zinc fertilizer, attapulgite and decomposed stone powder according to a mass ratio of 250:150:80:0.12:250:120:5:10:100:35. The fertilizer provided by the invention increases content of protein, amino acids, vitamins and medium trace elements such as zinc, calcium and iron, and integrates organic fertilizer and inorganic fertilizer together. By adding trace elements of the silicon fertilizer and zinc fertilizer, the fertilizer is comprehensive in nutrients, reasonable in proportions, and mutually assistant in slow-fast action; and fertilizer efficiency is stable and long. Compared with conventional fertilizer, the fertilizer provided by the invention can increase the yield of the rice by over 8%.

The invention relates to a low-oxygen dependent X-photodynamic nano photosensitizer as well as a preparation method and an application thereof. The low-oxygen dependent X-photodynamic nano photosensitizer comprises nano scintillation crystal particles capable of converting a high-energy radiation ray into an ultraviolet light, a silicon dioxide layer cladded on the surface of the nano scintillation crystal, zinc oxide nanoparticles loaded on the outer surface of the silicon dioxide layer, and polyethylene glycol grafted on the surfaces of the zinc oxide nanoparticles. The nano scintillation crystal capable of converting the high-energy radiation ray into the ultraviolet light is taken as a functional kernel; the nano scintillation crystal can emit a characteristic ultraviolet ray when being irradiated by an X ray; and the characteristic ultraviolet ray can be efficiently absorbed by shell ZnO semiconductor quantum dots, so as to generate electron hole pairs. A lot of high-activity hydroxyl radicals (.OH) and superoxide anions (.O2<->) are generated by complicated physical and chemical reaction, so as to damage cancer cells.

The invention belongs to the field of soil improvement, and particularly relates to an active coke-based saline-alkali soil improver and a preparation method thereof. The improver is composed of a porous biological fertilizer and a strain inoculant which are independently packaged, wherein the porous biological fertilizer is obtained by mixing, aging and fermenting an active coke mixture, vinegar residues and chicken manure according to the weight ratio of 1: (0.2-5): (0.2-1); the active coke mixture is obtained by fully mixing active coke screen underflow subjected to homogenization pretreatment and acidification impurity removal with a calcium superphosphate saturated solution and a silicon fertilizer according to the solid weight ratio of 1: (0.5-5): (0.2-1) by utilizing alternating-frequency magnetic coupling ultrasonic grading mechanical stirring; and the strain fungicide is composed of mycorrhizal fungi and a water-retaining agent according to the weight ratio of (0.1-1): (1-5), the mycorrhizal fungi are obtained by compounding glomus mosseae, glomus intraradices and glomus versiforme according to the weight ratio of 1: (0.2-2): (0.5-5) and propagating in local soil, and the inoculated product is a rhizosphere mixture composed of spores, hyphae and mycorrhizal fragments.