47results about How to "Long-term fertilizer effect" patented technology

The invention relates to the technical field of chemical engineering, and discloses a fertilizer capable of fixing soil heavy metal and a preparing method thereof. The fertilizer is prepared from, by weight, 9-11 parts of urea, 12-18 parts of phosphoric acid, 20-50 parts of alkaline potassium, 12-20 parts of reaction auxiliary, 0.6-1.5 parts of water, 15-25 parts of modified smectite powder, 0.6-1.0 part of calcium sulfate, 0.2-0.6 part of aluminum sulfate, 0.3-0.9 part of magnesium sulfate and 0.4-1.2 parts of ferrous sulfate. The used reaction auxiliary can be used as a catalyst when urea reacts with phosphoric acid and can be used for removing heavy metal ions in soil, impurity removal is omitted, no effluent or waste gas is exhausted, raw materials used in production are fully and reasonably used, and the fertilizer has remarkable environment protection benefits.

The invention discloses a quick-acting and long-acting controllable compound fertilizer and a preparation method thereof. The compound fertilizer comprises a granular fertilizer core and a slow-release compound fertilizer film coating the surface of the fertilizer core, wherein the slow-release compound fertilizer film comprises the following raw materials: polylactic acid, perlite powder, acrylicacid and volcanic ash. The compound fertilizer provided by the invention takes effect fast, has sustained, long-lasting and stable fertilizer efficiency, and can continuously supply plant nutrients;after application of a large amount of the compound fertilizer at a time, seedlings are not burned, and the fertilization amount and the fertilization times are reduced.

The invention relates to the technical field of chemical industry and discloses a method for preparing a polygonum multiflorum Chinese herbal medicine nutrition fertilizer. The method comprises the following steps: analyzing the ratio of the nutrient elements needed by growth of polygonum multiflorum by detecting the amount of various nutrient elements absorbed from soil in the polygonum multiflorum growth process, thereby obtaining the polygonum multiflorum fertilizer special for polygonum multiflorum. Phosphoric acid and carbamide react to generate an intermediate product, the intermediate product reacts with an alkaline calcium salt, and one part of monocalcium phosphate generated in the reaction is crystallized and separated out through control of the parameters in the reaction, so that the contents of nitrogen and phosphorus in the reaction solution are regulated to prepare the polygonum multiflorum Chinese herbal medicine nutrition fertilizer. According to the production method, the raw materials are fully utilized, and the prepared polygonum multiflorum Chinese herbal medicine nutrition fertilizer has the advantages that the yield and quality of the polygonum multiflorum can be improved, and the purity of the byproduct monocalcium phosphate is high.

A disclosed gel efficient biological fertilizer is prepared from the following raw materials in parts by weight: 20-40 parts of silkworm excrement, 20-30 parts of lotus root starch, 40-50 parts of chicken manure, 10-20 parts of wheat bran, 50-70 parts of pig manure, 15-25 parts of rice bran, 7-14 parts of sodium dihydrogen phosphate, 5-10 parts of sodium polyphosphate, 7-14 parts of manganese sulfate, 6-10 parts of zinc sulfate, 11-17 parts of urea, 4-6 parts of potassium dihydrogen phosphate, 5-8 parts of potassium sulfate, 3-7 parts of compound sodium nitrophenolate, 2-7 parts of naphthylacetic acid and 7-14 parts of humic acid. The provided gel efficient biological fertilizer is comprehensive in organic-fertilizer nutrients, balanced in nutrition and long in fertilizer efficiency, and is capable of promoting plant growth, reducing crop diseases and helping to obtain high output.

The invention relates to the technical field of chemical engineering, particularly to a production method for preparing an ammonium phosphate byproduct used as a special fertilizer for red peonies. Nutritional need conditions of the red peonies during growth are analyzed, defects in a preparation technology for ammonium phosphate products are combined to be analyzed and comprehended, and a preparation technology for a special combined compound fertilizer for the red peonies is combined with the preparation technology for the ammonium phosphate products, so that the two technologies are mutually complemented, the waste liquid discharge quantity in the preparation technology for the ammonium phosphate products is reduced, the defect of the lower ammonium phosphate product impurity caused by deep crystallization is overcome, and the quality of the ammonium phosphate products is improved; nutrient elements in waste liquids are adjusted and matched, so that the prepared special compound fertilizer for the red peonies can satisfy nutritional needs of the red peonies, the growing speed of the red peonies is increased, the yield and the quality of the red peonies are improved, the soil hardening rate is decreased, the land utilization rate is increased, and the method has the significant environmental protection value and the significant economic benefit.

The invention relates to the technical field of the chemical industry, and discloses a preparation method of a special fertilizer for cotton. A technical problem of soil hardening caused by the change of the structure of soil due to less autilization of fertilizers applied to cotton the residual of some element compounds in soil because the matching of the nutritional elements in present fertilizers cannot meet requirements of the nutritional elements in the growth process of cotton is solved. The method comprises the following steps: reacting phosphoric acid with carbomite to generate an intermediate, reacting the intermediate with an alkaline sodium salt, crystallizing parts of generated sodium dihydrogen phosphate to precipitate, adjusting the content of nitrogen and phosphorus in a reaction liquid to meet the growth requirements of cotton, and adding potassium and other medium trace element compounds in order to prepare the special fertilizer for cotton. The special fertilizer for cotton has the advantages of low production cost, and no discharge of waste liquids polluting the environment in the production process.

A slowly-releasing or releasing controlled urea is prepared from ordinary big urea particles (50-120 wt. portions), urease inhibitor (0.4-1.2 wt. portions) and magnesium oxide (3-8 wt. portions). Itsadvantages is high effect on controlling the hydrolysis procedure of urea for higher utilization rate.

The invention discloses a method for preparing a special fertilizer for cockscomb. The method is to generate an intermediate by reacting phosphoric acid and carbonamide, and then inject ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, so that a part of the dihydrogen phosphate Ammonium crystallization is used to adjust the ratio of nutrient elements in the reaction solution to meet the growth requirements of cockscomb, and add other nutrient elements required by cockscomb to prepare special fertilizer for cockscomb. This production method makes full use of raw materials, and no waste liquid is discharged to pollute the environment. By strictly controlling the amount of various parameters in the production process, the quality of the produced ammonium dihydrogen phosphate is better, and the cost of the prepared special fertilizer for cockscomb is lower. .

The invention relates to the field of chemical technique, especially to a production method for preparing ammonium dihydrogen phosphate and a by-product a special fertilizer for chive. By changing coefficients such as temperature and the like of wet-process phosphoric acid preparation of ammonium dihydrogen phosphate, purity of the product ammonium dihydrogen phosphate is raised, and a compound fertilizer containing N, P and K combined forms can simultaneously be produced. By the method, purity of ammonium dihydrogen phosphate can be raised, and the produced special fertilizer for chive has good absorptivity. Meanwhile, the produced special fertilizer for chive can meet nutritional requirements of each period of growth cycle of chive. By the use of the compound fertilizer, yield of chive is raised greatly. The special fertilizer is an efficient compound fertilizer.

The invention discloses a planting method of wild orchid mushroom. The original species is obtained by screening the mother species of wild orchid mushroom; The seeds are cultivated on the planting compost; the soil is cultivated until fruiting. The method provides a scientific and reasonable growth and cultivation environment for the orchid mushroom, and is a cultivation method that is easy to popularize. The orchid mushroom cultivated by this method has the advantages of simple technology, low investment, short and quick tide-turning period, and high benefit. The biological efficiency is as high as 120%, and it only takes 8 days from sowing to commercial sale.

The invention relates to the field of chemical technique, especially to a production method for preparing monopotassium phosphate and a by-product a special fertilizer for Taxus chinensis. By changing coefficients such as temperature and the like of wet-process phosphoric acid preparation of monopotassium phosphate, purity of the product monopotassium phosphate is raised, and a compound fertilizer containing N, P and K combined forms can simultaneously be produced. In addition, formaldehyde is added into a filtrate to prepare a controlled-release compound fertilizer. By the method, purity of monopotassium phosphate can be raised, and the produced special fertilizer for Taxus chinensis has good absorptivity. Meanwhile, the produced special fertilizer for Taxus chinensis can meet nutritional requirements of each period of growth cycle of Taxus chinensis. The special fertilizer is an efficient compound fertilizer.

The invention relates to the technical field of chemical industry, and especially relates to a method for preparing ammonium dihydrogen phosphate and preparing a special fertilizer for beet as a byproduct. The temperature and other coefficients of the preparation of ammonium dihydrogen phosphate from phosphoric acid through a wet process are changed, so the purity of the ammonium dihydrogen phosphate product is improved, and the N, P and K compounded fertilizer is produced. The method improves the purity of ammonium dihydrogen phosphate, and the produced special fertilizer for beet has high absorptivity, can meet the nutrition needs of beet in all stages of the growth period of beet, greatly increases the output of beet, and is an efficient compound fertilizer.

The present invention relates to the field of chemical technology, in particular to a production method for preparing ammonium phosphate by-product Radix Paeoniae Rubra special fertilizer, by analyzing the nutrient requirements in the growth process of Radix Radix Radix Radix Paeoniae Rubra, combined with the shortcomings in the preparation process of ammonium phosphate products for analysis and analysis. It is understood that the combination of the preparation process of the special compound fertilizer for red peony root and the preparation process of ammonium phosphate products makes the two processes complement each other, reduces the waste liquid discharge in the preparation process of ammonium phosphate products, and avoids the deep crystallization. The shortcomings of the low purity of the ammonium phosphate products from the past have improved the quality of the ammonium phosphate products; by adjusting and matching the nutrient elements in the waste liquid, the prepared special compound fertilizer for red peony can meet the nutritional needs of red peony and improve the quality of the ammonium phosphate product. The growth speed of Radix Paeoniae Rubra improves the yield and quality of Radix Paeoniae Rubra, reduces the soil compaction rate, improves the land utilization rate, and has significant environmental protection value and economic benefits.

The invention relates to the technical field of the chemical industry, and discloses a preparation method of a special fertilizer for cotton. A technical problem of soil hardening caused by the change of the structure of soil due to less autilization of fertilizers applied to cotton the residual of some element compounds in soil because the matching of the nutritional elements in present fertilizers cannot meet requirements of the nutritional elements in the growth process of cotton is solved. The method comprises the following steps: reacting phosphoric acid with carbomite to generate an intermediate, reacting the intermediate with an alkaline sodium salt, crystallizing parts of generated sodium dihydrogen phosphate to precipitate, adjusting the content of nitrogen and phosphorus in a reaction liquid to meet the growth requirements of cotton, and adding potassium and other medium trace element compounds in order to prepare the special fertilizer for cotton. The special fertilizer for cotton has the advantages of low production cost, and no discharge of waste liquids polluting the environment in the production process.

The invention relates to the field of chemical technique, especially to a production method for preparing dipotassium hydrogen phosphate and a by-product a special fertilizer for plum trees. By changing coefficients such as temperature and the like of wet-process phosphoric acid preparation of dipotassium hydrogen phosphate, purity of the product dipotassium hydrogen phosphate is raised, a compound fertilizer containing N, P and K combined forms can simultaneously be produced, and formaldehyde is added into a filtrate to prepare a controlled-release compound fertilizer. By the method, purity of dipotassium hydrogen phosphate can be raised, and the produced special fertilizer for plum trees has good absorptivity. Meanwhile, the produced special fertilizer for plum trees can meet nutritional requirements of each period of growth cycle of plum trees, and is an efficient compound fertilizer.

The invention relates to the technical field of chemical industry, and discloses a preparation method of a special fertilizer for sorghum as a byproduct. The method comprises the following steps: analyzing the ratio of nutritional elements required by the growth of sorghum by detecting the amounts of absorption of all the nutritional elements from soil in the growth process of sorghum, reacting phosphoric acid with carbomite to generate an intermediate, introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, crystallizing parts of ammonium dihydrogen phosphate to precipitate, adjusting the ratio of nutritional elements in a reaction solution to meet the growth of sorghum, and adding other nutritional elements required by sorghum in order to prepare the special fertilizer for sorghum. The preparation method has the advantages of full utilization of raw materials, good quality of the prepared ammonium dihydrogen phosphate, and low cost of the prepared special fertilizer for sorghum.

The invention relates to the technical field of chemical engineering, and discloses a method for preparing monocalcium phosphate and a fertilizer for garlic. The method comprises the following steps: carrying out reaction on phosphoric acid and carbamide to generate a midbody, carrying out reaction on the midbody and alkali calcium salt to generate monocalcium phosphate, analyzing the amounts of various nutrient elements required for the garlic growth through researching the amounts of the nutrient elements absorbed by the garlic from the soil, and preparing the fertilizer for garlic by utilizing the waste liquor obtained by producing the monocalcium phosphate. According to the method, the raw materials are fully utilized, the produced monocalcium phosphate is relatively good in quality and the prepared fertilizer for garlic is relatively low in cost.

The invention relates to the technical field of chemical industry, and discloses a method for preparing a dendrobium officinale nutrient fertilizer. The method comprises the following steps: determining the proportion of nutritive elements in the dendrobium officinale nutrient fertilizer by analyzing various nutritive elements absorbed in a growth process of dendrobium officinale, reacting phosphoric acid with carbamide to generate an intermediate, then introducing ammonia gas into the intermediate to produce ammonium dihydrogen phosphate, separating part of ammonium dihydrogen phosphate by crystallization so as to control the content of nitrogen and phosphorus in a solution to meet the proportion required by the growth of dendrobium officinale, and then adding potassium and other medium trace element compounds into the solution to prepare a fertilizer special for dendrobium officinale. According to a production method disclosed by the invention, raw materials can be fully used, produced ammonium dihydrogen phosphate is relatively good in quality, and the prepared fertilizer special for dendrobium officinale is relatively low in cost.