CN114524690A

CN114524690A - Preparation method of nano fertilizer with water containing property and capable of remarkably promoting plant growth

Info

Publication number: CN114524690A
Application number: CN202011234013.7A
Authority: CN
Inventors: 张海显
Original assignee: Shandong Yingfeng Biotechnology Co ltd
Current assignee: Shandong Yingfeng Biotechnology Co ltd
Priority date: 2020-11-07
Filing date: 2020-11-07
Publication date: 2022-05-24

Abstract

The invention relates to a preparation method of a nano fertilizer which has water containing property and can obviously promote plant growth. The nano fertilizer is prepared from nano iron, nano zinc, nano rare earth, nano boron trioxide, potassium nitrate, ammonium acetate, polyacrylamide, potassium citrate, beneficial bacteria, water and the like. The nano fertilizer is green and environment-friendly, can enhance the water-containing capacity of soil by more than 18 percent, can promote the yield of plants to be increased by 22 to 35 percent, and simultaneously improves the quality of crops. The nano fertilizer has simple preparation process, the whole preparation process is environment-friendly, and no three wastes are discharged.

Description

Preparation method of nano fertilizer with water containing property and capable of remarkably promoting plant growth

Technical Field

The invention relates to a preparation method of a nano fertilizer which has water containing property and can obviously promote plant growth. Can be used in the fields of planting vegetables, medicinal materials and the like, soil improvement and the like.

Background

The dependence degree of agricultural production increase on chemical fertilizers is higher and higher, the application amount of the chemical fertilizers in China is at the top of the world at present, and the trend of increasing year by year is presented. The traditional fertilizer still mainly uses inorganic fertilizers containing nitrogen, phosphorus and potassium, and as the field amount of farmyard manure is reduced year by year and continuous cropping planting is carried out for many years, the beneficial bacterium amount and fertilizer efficiency in soil are rapidly reduced, soil hardening is serious, crop diseases and insect pests frequently occur, and the mu yield is not high. The bio-organic fertilizer has good environmental benefit, but due to the restriction of production technology and the like, the bio-organic fertilizer sold in China at present has the problems of incomplete fermentation, high content of mixed bacteria, low content of probiotics and the like, so that the effect of the bio-organic fertilizer cannot be obviously shown, and the rapid popularization and application of the bio-organic fertilizer are influenced. Therefore, there is an urgent need to develop a high-value ecological fertilizer that can provide nutrients required by crops and improve soil structure. The nano fertilizer has unique advantages, and in recent years, scholars at home and abroad carry out intensive research on the nano fertilizer, and some research results are obtained.

Patent publication No. CN109987993A discloses a special nano fertilizer for slow-release and controlled-release crops and a preparation process thereof, the main raw materials are ammonium chloride, urea, monoammonium phosphate, potassium chloride, potassium sulfate, a filling material, a conditioner and a coating agent, the fertilizer is prepared by adopting chemical and physical techniques such as micro-emulsification and high-shear technology, and although the fertilizer can be prepared, the preparation process is too complicated. Patent publication/publication No. CN106673842A discloses a preparation method of a biological nano fertilizer: firstly, fly ash, hydroxyapatite, vermiculite, sepiolite, full-silicon molecular sieve, magnesium aluminum hydrotalcite, kaolin, hydroxypropyl methyl cellulose and deionized water are used as raw materials to prepare a nano adsorption carrier, and then the nano adsorption carrier, bacillus subtilis, bacillus mucilaginosus, bacillus megaterium, urea, ammonium bicarbonate, potassium sulfate, citric acid, borax, crop straws and glucose are used as raw materials to prepare the biological nano fertilizer. Publication (announcement) No. CN103130567A discloses a waterproof water-retaining nano fertilizer and a manufacturing method thereof: mixing 40-60 parts of nano chitosan, 15-20 parts of monopotassium phosphate, 5-10 parts of choline chloride and 20-30 parts of humic acid at a constant temperature of 80 ℃, adding 3-6 parts of water-blocking flora, adding 2-8 parts of trace elements, and chelating at normal temperature for 3 days to prepare the nano waterproof fertilizer. The above microelements comprise more than twenty microelements such as potassium, magnesium, phosphorus, calcium, silicon, zinc, molybdenum, selenium, chitin, and algin. The fertilizer has good fertilizer efficiency, but the preparation process is complex.

Disclosure of Invention

The invention relates to a preparation method of a nano fertilizer which has water containing property and can obviously promote plant growth. The nano fertilizer is green and environment-friendly, can enhance the water-containing capacity of soil by more than 18 percent, can promote the yield increase of plants by 22 to 35 percent (taking Chinese chives and Chinese cabbages as examples), and simultaneously improves the quality of crops. The nano fertilizer has simple preparation process, the whole preparation process is environment-friendly, and no three wastes are discharged.

Detailed description of the preferred embodiments

The first embodiment is as follows:

(1) preparing a material A, namely adding 5Kg of potassium nitrate, 6Kg of ammonium acetate, 20Kg of ammonium polyacrylate and 3Kg of beneficial bacteria into a container, and fully stirring to uniformly mix the materials;

(2) preparing a material B: adding 0.01Kg of polyvinylpyrrolidone and 10Kg of potassium citrate into 51Kg of water, fully stirring, then sequentially adding 1.2Kg of nano iron, 1Kg of nano zinc, 0.7Kg of nano boron trioxide and 2Kg of nano rare earth, and ultrasonically stirring for 8 min;

(3) preparing a nano fertilizer: spraying the material B into the material A at a speed of 60ml/min, and fully stirring while spraying to obtain the nano fertilizer;

the nano fertilizer is applied to leeks and Chinese cabbages (1 Kg per mu of land), and a control experiment is carried out, and the results of the control experiment show that: the nano fertilizer enhances the water-holding capacity of soil by 18 percent; the yield of the Chinese chives is increased by 20 percent, the Chinese chives are more strong and the color is fresh green; the yield of the Chinese cabbage is increased by 26 percent, and the Chinese cabbage is stronger and fresh and tender in color.

Example two:

(1) preparing a material A, namely adding 6Kg of potassium nitrate, 8Kg of ammonium acetate, 28Kg of ammonium polyacrylate and 8Kg of beneficial bacteria into a container, and fully stirring to uniformly mix the materials;

(2) preparing a material B: adding 0.05Kg of polyvinylpyrrolidone and 20Kg of potassium citrate into 22.7Kg of water, fully stirring, then sequentially adding 2Kg of nano iron, 1.3Kg of nano zinc, 1Kg of nano boron trioxide and 3Kg of nano rare earth, and ultrasonically stirring for 13 min;

(3) preparing a nano fertilizer: spraying the material B into the material A at a speed of 70ml/min, and fully stirring while spraying to obtain the nano fertilizer;

the nano fertilizer is applied to Chinese chives and Chinese cabbages (1.3 Kg per mu of land), and a control experiment is carried out, and the result of the control experiment shows that: the nano fertilizer enhances the water-holding capacity of soil by 20%; the nano fertilizer increases the yield of the Chinese chives by 25 percent, ensures the Chinese chives to be more robust and has fresh green color; the yield of the Chinese cabbage is increased by 29 percent, and the Chinese cabbage is stronger and has fresh and tender color.

Example three:

(1) preparing a material A, namely adding 8Kg of potassium nitrate, 10Kg of ammonium acetate, 26Kg of ammonium polyacrylate and 7Kg of beneficial bacteria into a container, and fully stirring to uniformly mix the materials;

(2) preparing a material B: adding 0.06Kg of polyvinylpyrrolidone and 19Kg of potassium citrate into 21Kg of water, fully stirring, then sequentially adding 2.2Kg of nano iron, 1.7Kg of nano zinc, 1.1Kg of nano boron trioxide and 4Kg of nano rare earth, and ultrasonically stirring for 18 min;

(3) preparing a nano fertilizer: spraying the material B into the material A at a speed of 72ml/min, and fully stirring while spraying to obtain the nano fertilizer;

the nano fertilizer is applied to Chinese chives and Chinese cabbages (1.5 Kg per mu of land), and a control experiment is carried out, and the results of the control experiment show that: the nano fertilizer enhances the water-holding capacity of soil by 24%; the nano fertilizer can increase the yield of the Chinese chives by 28 percent, and the Chinese chives are stronger and have fresh green color; the yield of the Chinese cabbage is increased by 35 percent, and the Chinese cabbage is stronger and fresh and tender in color.

Example four:

(1) preparing a material A, namely adding 10Kg of potassium nitrate, 12Kg of ammonium acetate, 30Kg of ammonium polyacrylate and 4Kg of beneficial bacteria into a container, and fully stirring to uniformly mix the materials;

(2) preparing a material B: adding 0.08Kg of polyvinylpyrrolidone and 16Kg of potassium citrate into 16.8Kg of water, fully stirring, then sequentially adding 3Kg of nano iron, 2Kg of nano zinc, 1.2Kg of nano boron trioxide and 5Kg of nano rare earth, and ultrasonically stirring for 20 min;

(3) preparing a nano fertilizer: spraying the material B into the material A at a speed of-80 ml/min, and fully stirring while spraying to obtain the nano fertilizer;

the nano fertilizer is applied to Chinese chives and Chinese cabbages (1.8 Kg per mu of land), and a control experiment is carried out, and the results of the control experiment show that: the nano fertilizer enhances the water-holding capacity of soil by 27%; the nano fertilizer can increase the yield of the Chinese chives by 27 percent, and the Chinese chives are stronger and have fresh green color; the yield of the Chinese cabbage is increased by 34 percent, and the Chinese cabbage is stronger and fresh and tender in color.

Claims

1. The invention provides a preparation method of a nano fertilizer with water containing property and capable of remarkably promoting plant growth, which is basically characterized in that the nano fertilizer is prepared from nano iron, nano zinc, nano rare earth, nano diboron trioxide, potassium nitrate, ammonium acetate, polyacrylamide, potassium citrate, beneficial bacteria, polyvinylpyrrolidone, water and the like, wherein the content of the nano iron is 1.2-3 wt%, the content of the nano zinc is 1-2 wt%, the content of the nano diboron trioxide is 0.7-1.2 wt%, the content of the nano rare earth is 2-5 wt%, the content of the potassium nitrate is 5-10 wt%, the content of the ammonium acetate is 6-12 wt%, the content of the ammonium polyacrylate is 20-30 wt%, the content of the potassium citrate is 10-20 wt%, the content of the beneficial bacteria is 3-8 wt%, the content of the polyvinylpyrrolidone is 0.01-0.08 wt%, the rest is water.

2. The method for preparing a nano fertilizer with water containing property and capable of remarkably promoting plant growth according to claim 1, wherein the method comprises the following steps: the beneficial bacteria comprise yeast and bacillus, wherein the yeast accounts for 10 wt%.

3. The method for preparing a nano fertilizer with water containing property and capable of remarkably promoting plant growth according to claim 1, wherein the method comprises the following steps: the nano iron is coated nano iron, wherein the average particle size of the nano iron is 3-10nm, and a layer of calcium carbonate film with the thickness of 6-10nm is coated outside the nano iron particles.

4. The method for preparing a nano fertilizer with water containing property and capable of remarkably promoting plant growth according to claim 1, wherein the method comprises the following steps: the average grain size of the nano zinc is 3-10nm, the outer surface of the nano zinc is coated with a layer of polyvinyl amide film, and the thickness of the film is 5-8 nm.

5. The method for preparing a nano fertilizer with water containing property and capable of remarkably promoting plant growth according to claim 1, wherein the method comprises the following steps: the average particle size of the nano boron trioxide is 10-16 nm.

6. The method for preparing a nano fertilizer with water containing property and capable of remarkably promoting plant growth according to claim 1, wherein the method comprises the following steps: the nano rare earth is a mixture of samarium oxide, lanthanum oxide and europium oxide (the mass ratio is 1: 2: 0.8), and the average particle size of the three is 12-20 nm.

7. The method for preparing a nano fertilizer with water containing property and capable of remarkably promoting plant growth according to claim 1, wherein the method comprises the following steps: the preparation method comprises the following steps:

(1) preparing a material A, namely sequentially adding potassium nitrate, ammonium acetate, ammonium polyacrylate and beneficial bacteria into a container, and fully stirring to uniformly mix the materials;

(2) preparing a material B: adding polyvinylpyrrolidone and potassium citrate into water, stirring thoroughly, then sequentially adding nanometer iron, nanometer zinc, nanometer boron manganese oxide and nanometer rare earth, and ultrasonically stirring for 8-20 min;

(3) preparing a nano fertilizer: and spraying the material B into the material A at a speed of 60-80ml/min, and fully stirring while spraying to obtain the nano fertilizer.