CN110655428A - Amino acid foliar fertilizer, preparation method thereof and method for cultivating and producing selenium-rich rice - Google Patents
Amino acid foliar fertilizer, preparation method thereof and method for cultivating and producing selenium-rich rice Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
- A01G22/22—Rice
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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Abstract
The invention provides a preparation method of an amino acid foliar fertilizer, which comprises the following steps: adding deionized water into a reaction kettle, sequentially adding part of urea, amino acid, monopotassium phosphate, boric acid, chelated zinc and dipotassium phosphate, raising the temperature, adding the rest of urea, amino acid, monopotassium phosphate, boric acid, chelated zinc and dipotassium phosphate, adding sodium selenite, sodium silicate, a surface wetting agent, gibberellin and the rest of ionized water, stirring, standing, extracting and filtering. The preparation method of the amino acid foliar fertilizer has the advantages of simple and easy production process, high efficiency, no pollution, low economic cost per unit area and the like. The invention also provides an amino acid foliar fertilizer; the amino acid foliar fertilizer is obtained by the preparation method of the amino acid foliar fertilizer. The invention also provides a method for cultivating and producing the selenium-rich rice, which comprises the following steps: soil preparation; selecting rice seeds and pretreating the rice seeds; sowing and raising seedlings; transplanting the seedlings; fertilizing; managing the field; and (6) harvesting.
Description
Technical Field
The invention relates to an amino acid foliar fertilizer.
The invention also relates to a preparation method of the amino acid foliar fertilizer.
The invention also relates to a method for cultivating and producing the selenium-rich rice.
Background
Selenium is a trace element necessary for human bodies, the Chinese academy of nutrition ranks selenium as one of 15 nutrients necessary for human bodies, and a large number of clinical experiments at home and abroad prove that selenium deficiency of human bodies can cause dysfunction of some important organs, so that a plurality of diseases occur. With the improvement of living standard of people, people seek higher living quality and also put forward higher requirements on food safety and nutrition problems, and along with the emergence of green foods and organic foods, functional foods with specific nutritional values are gradually welcomed. Selenium element is one of the trace elements necessary for human body, and is also known as the title of 'king of cancer', most of the soil in China belongs to selenium-deficient soil, the intake of selenium element in daily diet of people is far lower than the national standard, so how to develop selenium-enriched products becomes the focus of attention of more and more students and experts at present.
The rice has a long planting history in China and is one staple food in China, and by developing the selenium-rich rice, inorganic selenium is converted into organic selenium which is useful for human body absorption, so that the selenium content in plants can be increased, the production of high-quality and high-yield water rice is positively promoted, and the rice can be popularized in a large area. The selenium-enriched rice fertilizer is obtained on the basis of previous research for reference, the selenium-enriched rice modes are various, the leaf surface spraying effect is optimal under the condition that different selenium-enriched modes are compared, the plant absorption and utilization rate is also high, and the pollution problem caused by fertilization and seed dressing in the prior art is reduced. Generally, the large-area cultivated soil in China belongs to selenium-deficient soil, diseases are caused by selenium deficiency of some regional populations, and the method for increasing the selenium content in crops by manually spraying selenium fertilizer is an economic, safe, efficient and convenient selenium supplementing way for producing selenium-enriched products.
Disclosure of Invention
The invention aims to solve the technical problem of providing an amino acid foliar fertilizer which can increase the yield and the efficiency without increasing the using amount of a fertilizer.
The invention also aims to solve the technical problem of providing a simple, easy, efficient and pollution-free preparation method of the amino acid foliar fertilizer.
The invention also aims to solve the technical problem of providing a method for cultivating and producing the selenium-rich rice.
In order to solve the technical problems, the invention provides a preparation method of an amino acid foliar fertilizer, which comprises the following raw materials in parts by weight:
5-15 parts of urea, 10-30 parts of amino acid, 7-20 parts of monopotassium phosphate, 3-10 parts of boric acid, 2-5 parts of chelated zinc, 4-10 parts of dipotassium phosphate, 1-2 parts of sodium selenite, 3-5 parts of sodium silicate, 3-5 parts of a surface wetting agent, 1-2 parts of gibberellin and 150-500 parts of deionized water;
the preparation method of the amino acid foliar fertilizer comprises the following steps:
adding two thirds of deionized water and a reaction kettle, then sequentially adding two thirds of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, stirring for 1-2 hours, adding the rest of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate again after the temperature rises to 30 ℃, stirring for 1-2 hours again, finally adding sodium selenite, sodium silicate, a surface wetting agent, gibberellin and the rest of ionized water at one time when the temperature reaches 35 ℃, stirring and mixing uniformly for 3-4 hours, standing for 5-10 hours, cooling to room temperature, and performing extraction filtration to obtain the amino acid foliar fertilizer.
Preferably, the surface wetting agent is sodium dodecylbenzenesulfonate.
After the method is adopted, the preparation method of the amino acid foliar fertilizer has the advantages of simple and easy production process, high efficiency, no pollution, low economic cost per unit area and the like.
In addition, the raw materials are added into the reaction kettle step by step, so that the dissolution is accelerated, no sediment is generated among the raw materials, the raw materials are added step by step again along with the rise of the temperature, the dissolved nutrient content is more uniform, and a large amount of crystals cannot be generated along with the cooling of the temperature to the room temperature.
In order to solve the technical problems, the invention also provides an amino acid foliar fertilizer; the amino acid foliar fertilizer is obtained by the preparation method of the amino acid foliar fertilizer.
After the method is adopted, the storage concentration of the amino acid foliar fertilizer is 8-10 g/L calculated by sodium selenite, and the contents of other nutrients meet the GB/T17419-1998 standard.
In order to solve the technical problems, the invention also provides a method for cultivating and producing the selenium-rich rice, which comprises the following steps:
a) land preparation: selecting a field which is free from heavy metal pollution and has good drainage, and then performing operation processes such as irrigation, ridge division and the like;
b) rice seed selection and rice seed pretreatment: selecting high-yield, high-quality, plump-grain and disease-free infected rice seeds, then soaking the sown seeds in clear water for 1-2 days, and filtering the floating grain seeds with lower density;
c) sowing and seedling raising: sowing the good seeds in the step b) in a seedling raising tray to obtain small seedlings;
d) transplanting seedlings: irrigating the earlier-finished field, and keeping the water depth to be 10-25 cm, the plant spacing to be 10-15 cm and the row spacing to be 11-18 cm;
e) fertilizing: after 5-7 days of transplanting, fertilizing the seedlings, and manually applying 30-35 kg of the inorganic compound fertilizer to the base fertilizer per mu of field; in the jointing stage, 5 kg-7 kg of urea is applied; in the heading period, 50-250 mL of the amino acid foliar fertilizer as claimed in claim 3 is taken, diluted by 500-1000 times by adding water, the liquid medicine is shaken up before use, and the foliar fertilizer is sprayed, wherein the uniformly sprayed part is sword leaves and the following two leaves;
f) field management: when the seedlings grow, the seedlings are subjected to weeding and deinsectization treatment, and water sources are irrigated timely to promote the growth and rapid development of the seedlings when the seedlings grow;
g) harvesting: and immediately cleaning and drying the harvested rice.
Preferably, in the step e), 50-250 mL of the amino acid foliar fertilizer as claimed in claim 3 is taken, diluted by 500-1000 times by adding water, the liquid medicine is shaken uniformly before use, the foliar fertilizer is sprayed, the uniformly sprayed parts are sword leaves and the following two leaves, and the supplementary spraying is needed within 24 hours after the spraying, so that the missed spraying is avoided.
The method for cultivating and producing the selenium-rich rice has the following advantages:
(1) the aim of supplementing selenium for human bodies can be indirectly achieved by developing selenium-rich agriculture.
(2) By developing the selenium-rich foliar fertilizer, the fertilizer not only achieves the purpose of increasing the yield and the efficiency of crops, but also has positive effect on zero increase of the fertilizer
(3) By developing selenium-rich agriculture, the industrial chain is extended, and the added value of agricultural products is improved; can also achieve the function of agricultural poverty alleviation by developing selenium-rich agriculture. Has higher practical application popularization and use value.
Detailed Description
Example one
The preparation method of the amino acid foliar fertilizer comprises the following raw materials in parts by weight:
10 parts of urea, 15 parts of amino acid, 10 parts of monopotassium phosphate, 5 parts of boric acid, 3 parts of chelated zinc, 5 parts of dipotassium phosphate, 2 parts of sodium selenite, 3 parts of sodium silicate, 3 parts of sodium dodecyl benzene sulfonate, 2 parts of gibberellin and 300 parts of deionized water;
the preparation method of the amino acid foliar fertilizer comprises the following steps:
adding two thirds of deionized water and a reaction kettle, then sequentially adding two thirds of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, stirring for 1.5 hours, raising the temperature to 30 ℃ for a while, adding the rest of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, and stirring for 1.5 hours again. And finally, when the temperature reaches 35 ℃, adding sodium selenite, sodium silicate, sodium dodecyl benzene sulfonate, gibberellin and the rest of ionized water at one time, uniformly stirring and mixing for 3.5 hours, standing for 7 hours, cooling to room temperature, performing extraction filtration, and filling by using a full-automatic packaging machine to obtain the amino acid foliar fertilizer.
The bottled liquid of the amino acid foliar fertilizer after filling is 200 ml/bottle, the storage concentration of the amino acid foliar fertilizer is 8-10 g/L calculated by sodium selenite, and the content of other nutrients meets the GB/T17419-1998 standard.
The method for cultivating and producing the selenium-rich rice is concretely illustrated by combining the amino acid foliar fertilizer.
The soil type is moist soil developed by parent substances of Yangtze river alluvial substance, and the basic chemical properties of the tested soil are as follows:
the method for cultivating and producing the selenium-rich rice comprises the following steps:
a) land preparation and zoning: selecting field without heavy metal pollution and with good drainage, removing stone and weed, dividing into 21 small zones with average area of 6 × 9m2Accumulating soil around the field into ridges of 20-30 cm, and then carrying out irrigation, ridge division and other operation processes;
b) rice seed selection and rice seed pretreatment: selecting high-yield, high-quality, plump-grain and disease-free infected rice seeds, then soaking the sowed seeds in clear water for 2 days, and filtering the floating grain seeds with lower density;
c) sowing and seedling raising: sowing the good seeds in the step b) in a seedling raising tray, and carefully managing to obtain small seedlings;
d) transplanting seedlings: irrigating the earlier-finished field, and keeping the water depth to be 20cm, the plant spacing to be 13cm and the row spacing to be 15 cm;
e) fertilizing: after transplanting for 6 days, fertilizing the seedlings, manually applying 33kg of base inorganic compound fertilizer (the inorganic compound fertilizer is Stahly 15-15-15, and the application method is that manual application is adopted) in each mu of field; in the jointing stage, 6kg of urea is applied; in the heading leveling period, 150mL of the amino acid foliar fertilizer is taken, diluted by 700 times by adding water, the liquid medicine is shaken uniformly before use, the foliar is sprayed, the uniformly sprayed part is sword leaf and the following two leaves, and the supplementary spraying is needed when meeting rain within 24 hours after the application, so that the missed spraying is avoided;
f) field management: when the seedlings grow, the seedlings are subjected to weeding and deinsectization treatment, and water sources are irrigated timely to promote the growth and rapid development of the seedlings when the seedlings grow;
g) harvesting: the harvester is adopted for mechanical harvesting operation, and the harvested rice is immediately cleaned and dried.
Example two
The preparation method of the amino acid foliar fertilizer comprises the following raw materials in parts by weight:
5 parts of urea, 10 parts of amino acid, 7 parts of monopotassium phosphate, 3 parts of boric acid, 2 parts of chelated zinc, 4 parts of dipotassium hydrogen phosphate, 1 part of sodium selenite, 3 parts of sodium silicate, 3 parts of sodium dodecyl benzene sulfonate, 1 part of gibberellin and 150 parts of deionized water;
the preparation method of the amino acid foliar fertilizer comprises the following steps:
adding two thirds of deionized water into a reaction kettle, then sequentially adding two thirds of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, stirring for 1 hour, raising the temperature to 30 ℃ for a while, adding the rest of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, and stirring for 1 hour again. And finally, adding sodium selenite, sodium silicate, sodium dodecyl benzene sulfonate, gibberellin and the rest of ionized water at one time when the temperature reaches 35 ℃, uniformly stirring for 3 hours, standing for 5 hours, cooling to room temperature, extracting and filtering, and filling by using a full-automatic packaging machine to obtain the amino acid foliar fertilizer.
The bottled liquid of the amino acid foliar fertilizer after filling is 200 ml/bottle, the storage concentration of the amino acid foliar fertilizer is 8-10 g/L calculated by sodium selenite, and the content of other nutrients meets the GB/T17419-1998 standard.
The method for cultivating and producing the selenium-rich rice is concretely illustrated by combining the amino acid foliar fertilizer.
The soil type is moist soil developed by parent substances of Yangtze river alluvial substance, and the basic chemical properties of the tested soil are as follows:
the method for cultivating and producing the selenium-rich rice comprises the following steps:
a) land preparation and zoning: selecting field without heavy metal pollution and with good drainage, removing stone and weed, dividing into 21 small zones with average area of 6 × 9m2Accumulating soil around the field into ridges of 20-30 cm, and then carrying out irrigation, ridge division and other operation processes;
b) rice seed selection and rice seed pretreatment: selecting high-yield, high-quality, plump-grain and disease-free infected rice seeds, then soaking the sowed seeds in clear water for 1 day, and filtering the floating grain seeds with lower density;
c) sowing and seedling raising: sowing the good seeds in the step b) in a seedling raising tray, and carefully managing to obtain small seedlings;
d) transplanting seedlings: irrigating the earlier-finished field, and keeping the water depth to be 10cm, the plant spacing to be 10cm and the row spacing to be 11 cm;
e) fertilizing: after 5 days of transplanting, the seedlings are fertilized, and 30kg of inorganic compound fertilizer (Strobilanthes 15-15-15) is applied to the base fertilizer manually according to the field per mu in a way that the seeding is manually applied; in the jointing stage, 5kg of urea is applied; in the heading leveling period, 50mL of the amino acid foliar fertilizer is taken, diluted by 500 times by adding water, the liquid medicine is shaken uniformly before use, the foliar is sprayed, the uniformly sprayed part is sword leaf and the following two leaves, and the supplementary spraying is needed when meeting rain within 24 hours after the application, so that the missed spraying is avoided;
f) field management: when the seedlings grow, the seedlings are subjected to weeding and deinsectization treatment, and water sources are irrigated timely to promote the growth and rapid development of the seedlings when the seedlings grow;
g) harvesting: the harvester is adopted for mechanical harvesting operation, and the harvested rice is immediately cleaned and dried.
EXAMPLE III
The preparation method of the amino acid foliar fertilizer comprises the following raw materials in parts by weight:
15 parts of urea, 30 parts of amino acid, 20 parts of monopotassium phosphate, 10 parts of boric acid, 5 parts of chelated zinc, 10 parts of dipotassium phosphate, 2 parts of sodium selenite, 5 parts of sodium silicate, 5 parts of sodium dodecyl benzene sulfonate, 2 parts of gibberellin and 500 parts of deionized water;
the preparation method of the amino acid foliar fertilizer comprises the following steps:
adding two thirds of deionized water into a reaction kettle, then sequentially adding two thirds of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, stirring for 2 hours, raising the temperature to 30 ℃ for a while, adding the rest of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, and stirring for 2 hours again. And finally, adding sodium selenite, sodium silicate, sodium dodecyl benzene sulfonate, gibberellin and the rest of ionized water at one time when the temperature reaches 35 ℃, uniformly stirring for 4 hours, standing for 10 hours, cooling to room temperature, extracting and filtering, and filling by using a full-automatic packaging machine to obtain the amino acid foliar fertilizer.
The bottled liquid of the amino acid foliar fertilizer after filling is 200 ml/bottle, the storage concentration of the amino acid foliar fertilizer is 8-10 g/L calculated by sodium selenite, and the content of other nutrients meets the GB/T17419-1998 standard.
The method for cultivating and producing the selenium-rich rice is concretely illustrated by combining the amino acid foliar fertilizer.
The soil type is moist soil developed by parent substances of Yangtze river alluvial substance, and the basic chemical properties of the tested soil are as follows:
the method for cultivating and producing the selenium-rich rice comprises the following steps:
a) land preparation and zoning: selecting the waste water without heavy metal pollutionGood field, removing stone and weed, dividing into 21 small regions with average area of 6 × 9m2Accumulating soil around the field into ridges of 20-30 cm, and then carrying out irrigation, ridge division and other operation processes;
b) rice seed selection and rice seed pretreatment: selecting high-yield, high-quality, plump-grain and disease-free infected rice seeds, then soaking the sowed seeds in clear water for 2 days, and filtering the floating grain seeds with lower density;
c) sowing and seedling raising: sowing the good seeds in the step b) in a seedling raising tray, and carefully managing to obtain small seedlings;
d) transplanting seedlings: irrigating the earlier-finished field, and keeping the water depth to be 25cm, the plant spacing to be 15cm and the row spacing to be 18 cm;
e) fertilizing: after transplanting for 7 days, fertilizing the seedlings, manually applying 35kg of base inorganic compound fertilizer (the inorganic compound fertilizer is Stahly 15-15-15, and the application method is that the base inorganic compound fertilizer is manually applied) in each mu of field; in the jointing stage, 7kg of urea is applied; in the heading leveling period, 250mL of the amino acid foliar fertilizer is taken, diluted 1000 times by adding water, the liquid medicine is shaken uniformly before use, the foliar is sprayed, the uniformly sprayed part is sword leaf and the following two leaves, and the supplementary spraying is needed when meeting rain within 24 hours after the application, so that the missed spraying is avoided;
f) field management: when the seedlings grow, the seedlings are subjected to weeding and deinsectization treatment, and water sources are irrigated timely to promote the growth and rapid development of the seedlings when the seedlings grow;
g) harvesting: the harvester is adopted for mechanical harvesting operation, and the harvested rice is immediately cleaned and dried.
In order to prove the experimental effect of the invention, the third example is taken as an example, and a comparative experiment is carried out.
On the premise of keeping other experimental conditions unchanged, the following different fertilizer usage amounts are changed, and the influence on the selenium content and rice yield of the tested rice is reduced.
After the harvester is adopted for mechanical harvesting operation, the influence of spraying the selenium-containing amino acid foliar fertilizer on the selenium content of rice is as follows:
| group name | Selenium content of rice (mg/kg) |
| CK | 0.05 |
| T0C0 | 0.08 |
| T0C1 | 0.10 |
| T1C0 | 0.19 |
| T1C1 | 0.21 |
| T2C0 | 0.27 |
| T2C1 | 0.35 |
From the above table it is concluded that: the selenium-rich content is ordered as follows:
T2C1>T2C0>T1C1>T1C0>T0C1>T0C0>CK。
the effect of spraying selenium-containing amino acid foliar fertilizer on rice yield is as follows:
from the above table it is concluded that: the yield of the selenium fertilizer sprayed on the leaf surfaces is sorted as follows:
T1C1>T2C0>T2C1>T1C0>T0C1>T0C0>CK。
it can be seen that the selenium-rich content in the T2C1 group (example three) can be maximized while ensuring the yield.
The above description is only three embodiments of the present invention, and it should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the principle of the present invention, and these should also be considered as falling within the protection scope of the present invention.
Claims (5)
1. The preparation method of the amino acid foliar fertilizer comprises the following raw materials in parts by weight:
5-15 parts of urea, 10-30 parts of amino acid, 7-20 parts of monopotassium phosphate, 3-10 parts of boric acid, 2-5 parts of chelated zinc, 4-10 parts of dipotassium phosphate, 1-2 parts of sodium selenite, 3-5 parts of sodium silicate, 3-5 parts of a surface wetting agent, 1-2 parts of gibberellin and 150-500 parts of deionized water;
the preparation method of the amino acid foliar fertilizer comprises the following steps:
adding two thirds of deionized water and a reaction kettle, then sequentially adding two thirds of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate by weight, stirring for 1-2 hours, adding the rest of urea, amino acid, potassium dihydrogen phosphate, boric acid, chelated zinc and dipotassium hydrogen phosphate again after the temperature rises to 30 ℃, stirring for 1-2 hours again, finally adding sodium selenite, sodium silicate, a surface wetting agent, gibberellin and the rest of ionized water at one time when the temperature reaches 35 ℃, stirring and mixing uniformly for 3-4 hours, standing for 5-10 hours, cooling to room temperature, and performing extraction filtration to obtain the amino acid foliar fertilizer.
2. The method for preparing an amino acid foliar fertilizer of claim 1, which is characterized by:
the surface wetting agent is sodium dodecyl benzene sulfonate.
3. An amino acid foliar fertilizer is characterized in that: the amino acid foliar fertilizer obtained by the method for producing an amino acid foliar fertilizer according to claim 1 or 2.
4. A method for cultivating and producing selenium-rich rice comprises the following steps:
a) land preparation: selecting a field which is free from heavy metal pollution and has good drainage, and then performing operation processes such as irrigation, ridge division and the like;
b) rice seed selection and rice seed pretreatment: selecting high-yield, high-quality, plump-grain and disease-free infected rice seeds, then soaking the sown seeds in clear water for 1-2 days, and filtering the floating grain seeds with lower density;
c) sowing and seedling raising: sowing the good seeds in the step b) in a seedling raising tray to obtain small seedlings;
d) transplanting seedlings: irrigating the earlier-finished field, and keeping the water depth to be 10-25 cm, the plant spacing to be 10-15 cm and the row spacing to be 11-18 cm;
e) fertilizing: after 5-7 days of transplanting, fertilizing the seedlings, and manually applying 30-35 kg of the inorganic compound fertilizer to the base fertilizer per mu of field; in the jointing stage, 5 kg-7 kg of urea is applied; in the heading period, 50-250 mL of the amino acid foliar fertilizer as claimed in claim 3 is taken, diluted by 500-1000 times by adding water, the liquid medicine is shaken up before use, and the foliar fertilizer is sprayed, wherein the uniformly sprayed part is sword leaves and the following two leaves;
f) field management: when the seedlings grow, the seedlings are subjected to weeding and deinsectization treatment, and water sources are irrigated timely to promote the growth and rapid development of the seedlings when the seedlings grow;
g) harvesting: and immediately cleaning and drying the harvested rice.
5. The method for cultivating selenium-enriched rice as claimed in claim 1, wherein:
in the step e), 50-250 mL of the amino acid foliar fertilizer as claimed in claim 3 is diluted by 500-1000 times by adding water, the liquid medicine is shaken up before use, and the foliar fertilizer is sprayed, wherein the uniformly sprayed part is sword leaf and the following two leaves, and the supplementary spraying is needed within 24 hours after the spraying, and the missed spraying is avoided.
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Application publication date: 20200107 |