Leaf surface fertilizer of reducing pesticide residue and promoting cropper growth

A technology for crop growth and pesticide residues, applied in the direction of organic fertilizers, etc., can solve problems such as food pollution, and achieve the effects of easy availability of raw materials, low investment and simple production process

Inactive Publication Date: 2005-01-12
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the present situation that the large-scale use of organophosphorus pesticides causes food pollution, and deve

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0007] The preparation method of the present invention: first dissolve sugars including monosaccharides, sugar alcohols and sugar derivatives or oligosaccharides in water, then add agricultural rare earth nitrate or rare earths dissolved in dilute acid in advance, and the rare earth addition amount is 0.4 %-30.8% (percentage by weight of sugars), after reacting at 10°C-40°C for 24 hours, the pH value of the reaction solution is adjusted to 4-7 to obtain liquid foliar fertilizer, and further drying to obtain solid foliar fertilizer. The sugars can be any one of monosaccharides, sugar alcohols and sugar derivatives or oligosaccharides or a mixture of them in any proportion, but the sugar content is controlled at 250g-650g per mu. The total amount of rare earths is controlled at 1g~20g per mu.

[0008] The monosaccharides mentioned above are galactose and fructose, the sugar alcohols are arabitol, galactitol, glucitol, and xylitol, the sugar derivatives are glucosamine, and the oligo...

Example Embodiment

[0009] Example 1

[0010] 50g of galactose or fructose is dissolved in 100ml of water, slowly adding 0.3g of "Changle" brand beneficial plant element, keeping it at 25℃ and reacting for 24 hours to obtain liquid foliar fertilizer or dry to obtain solid foliar fertilizer. The solid content per mu is 400g, and the liquid should contain 400g solids. They are all used in accordance with the conventional foliar fertilizer application method.

Example Embodiment

[0011] Example 2

[0012] Dissolve 25g each of galactose and fructose in 100ml water in an acid-resistant container, slowly add 0.2g rare earth nitrate, keep at 25℃ for 24h, adjust the pH of the reaction solution to 6.0 with ammonium bicarbonate to obtain liquid foliar fertilizer, or Dry to obtain solid foliar fertilizer. The amount used per acre is 350g for solids and 350g for liquids. They are all used in accordance with conventional foliar fertilizers.

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PUM

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Abstract

In the invention, sugar containing monose, sugar alcohol, and sugar derivant or compound sugar are dissolved by water, then put agricultural rare-earth nitrate or rare earth predissolved by weak acid, the additive quantity of rare earth is 0.4-30.8 wt% of sugar weight, and to be reacted 24 hours in temp. 10-40 deg.C to adjust pH value of reaction liquid is 4-7, to generate liquid leaf surface fertilizer, then to be dried to obtain solid phylloplane fertilizer. The sugars is one of monose, sugar alcohol, suar derivant and compound sugar or mixture of them, the content of sugars must be controlled in 250g-650g each mu, rare earth total quantity must be controlled in 1g-25g each mu.

Description

technical field [0001] The invention relates to a preparation method of foliar fertilizer for reducing pesticide residues and promoting crop growth. Background technique [0002] How to ensure food quantity and quality safety is a long-term and arduous task in our country with small land and large population. As far as plant-derived foods are concerned, whether it is bulk food production or vegetable and fruit production, their peak growing season is mostly the peak season of insect pests. In order to improve their yield and quality at this stage, farmers also need to use chemical pesticides to control pests. With the complete prohibition of the use of organochlorine pesticides and the tendency of pests to develop resistance to pyrethroid pesticides, organophosphorus pesticides currently account for 70% of the total amount of insecticides. Long-term large-scale production and use of organophosphorus pesticides not only cause serious pollution to the environment, but also h...

Claims

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Application Information

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IPC IPC(8): C05F11/00C05F15/00
Inventor 汪东风孙继鹏杜德红王常红
Owner OCEAN UNIV OF CHINA
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