CN112624836A - Glycine-containing aeroponics lettuce nutrient solution, nutrient supplement and preparation method - Google Patents
Glycine-containing aeroponics lettuce nutrient solution, nutrient supplement and preparation method Download PDFInfo
- Publication number
- CN112624836A CN112624836A CN202110017919.1A CN202110017919A CN112624836A CN 112624836 A CN112624836 A CN 112624836A CN 202110017919 A CN202110017919 A CN 202110017919A CN 112624836 A CN112624836 A CN 112624836A
- Authority
- CN
- China
- Prior art keywords
- nutrient solution
- lettuce
- sulfate
- glycine
- nutrient
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
Abstract
The invention discloses a glycine-containing aeroponics lettuce nutrient solution, a nutrient supplement and a preparation method, wherein the nutrient solution comprises the following components: amino acid, nutrient solution A, nutrient solution B, nutrient solution C and trace elements. The nutrient solution adjusts the EC value of the nutrient solution according to different growth periods of the lettuce, so that the nutrient solution is more suitable for the growth characteristics of the lettuce. The aeroponics lettuce nutrient solution containing glycine can supplement the dosage of the nutrient solution required by lettuce growth according to the actual production requirement, and timely and accurately supplement the nutrient solution. The nutrient solution formula of the invention obviously improves the content of soluble sugar and ascorbic acid while reducing the content of nitrate of the aeroponics lettuce to reach the standard of fresh food (less than or equal to 432 mg/kg).
Description
Technical Field
The invention belongs to the technical field of soilless culture nutrient solutions, and relates to glycine-containing aeroponics lettuce nutrient solution, a glycine-containing aeroponics lettuce nutrient supplement and a preparation method.
Background
Aerial fog cultivation is a resource-saving and environment-friendly novel soilless cultivation mode, the root system of a plant is placed in the air, the water, fertilizer and air environment of the root system is controlled by using a computer technology, the water-air contradiction of the root system of the plant in the traditional soilless cultivation can be effectively solved, and the yield and the quality of the crop are effectively improved.
However, in the existing aerial fog cultivation production, a water cultivation nutrient solution formula is adopted, nitrate nitrogen is used as a nitrogen source of the nutrient solution, so that the cultivated crops have high nitrate content, and can not reach the standard of fresh food (less than or equal to 432mg/kg), and some can not even reach the standard of cooked food (less than or equal to 3100 mg/kg). Some researchers have proposed that soybean peptone, urea, fish bone meal, etc. are used as nitrogen sources, but raw materials are difficult to obtain and easily clog an aerosol nozzle. In addition, in the actual production, the nutrient solution is supplemented according to experience, so that the nutrient solution with too low concentration cannot meet the growth of the lettuce, or the nutrient solution with too high concentration inhibits the growth of the lettuce.
Therefore, a new nitrogen source which is convenient to use needs to be found to reduce the use of nitrate nitrogen in the nutrient solution formula, the supplement dosage of the nutrient solution is researched to adjust the concentration of the nutrient solution, and finally a special nutrient solution formula and supplement for the aeroponic lettuce are formed to ensure the normal growth of the aeroponic lettuce and reduce the content of nitrate in aeroponic plants so as to reach the standard of fresh eating.
Disclosure of Invention
Aiming at the defects of the existing nutrient solution formula, the invention provides a glycine-containing aeroponic lettuce nutrient solution, a nutrient supplement and a preparation method thereof, the nutrient solution can be timely and accurately supplemented by using the method, and the content of soluble sugar and ascorbic acid is obviously improved while the content of nitrate of aeroponic lettuce is reduced to reach the standard of fresh food (less than or equal to 432 mg/kg).
Aiming at the technical problems, the invention adopts the technical scheme that: an aeroponics lettuce nutrient solution containing glycine is characterized in that: the nutrient solution comprises amino acids, nutrient solution A, nutrient solution B, nutrient solution C and trace elements;
wherein the amino acid is glycine;
the nutrient solution A comprises calcium nitrate tetrahydrate, calcium chloride dihydrate and potassium chloride;
the nutrient solution B comprises ammonium sulfate and potassium dihydrogen phosphate;
the nutrient solution C comprises potassium sulfate and heptahydrate manganese sulfate;
the microelements comprise chelated iron, boric acid, manganous sulfate, zinc sulfate heptahydrate, anhydrous copper sulfate and sodium molybdate dihydrate;
the dosage of each component is as follows: amino acids: 372-378 mg/kg; nutrient solution A: 600-612 mg/kg; and (3) nutrient solution B: 164-168 mg/kg; and (3) nutrient solution C: 330-336 mg/kg; trace elements: 35.31 mg/kg.
Wherein the dosage of each component is as follows:
glycine: 372-378 mg/kg;
nutrient solution A: 234-238mg/kg of calcium nitrate tetrahydrate, 145-149mg/kg of calcium chloride dihydrate and 225-225 mg/kg of potassium chloride;
and (3) nutrient solution B: ammonium sulfate 65-67mg/kg, potassium dihydrogen phosphate 99-101 mg/kg;
and (3) nutrient solution C: 86-88mg/kg of potassium sulfate, and 248mg/kg of heptahydrate manganese sulfate-;
trace elements: 30mg/kg of chelated iron, 2.86mg/kg of boric acid, 2.13mg/kg of manganous sulfate, 0.22mg/kg of zinc sulfate heptahydrate, 0.08mg/kg of anhydrous copper sulfate and 0.02mg/kg of sodium molybdate dihydrate.
A preparation method of the above aeroponics lettuce nutrient solution containing glycine comprises adding amino acids, nutrient solution A, nutrient solution B, nutrient solution C and microelements into a container, and dissolving with clear water at a certain proportion to obtain nutrient solution; the dosage of each component is as follows: amino acids: 372-378 mg/kg; nutrient solution A: 600-612 mg/kg; and (3) nutrient solution B: 164-168 mg/kg; and (3) nutrient solution C: 330-336 mg/kg; trace elements: 35.31 mg/kg;
wherein the relationship between the EC value of the nutrient solution and the concentration x of the nutrient solution is as follows: EC is 0.143+1.067 x.
When the concentration x of the nutrient solution is 1 dose, the EC value of the nutrient solution is 1.21 mS/cm.
Using the nutrient solution as a nutrient supplement, and controlling the EC value of the nutrient supplement, wherein the EC value of the nutrient supplement is the first period (0d-15 d): 1-1.2 mS/cm, medium stage (15d-30 d): 1.2-1.5 mS/cm, and a later stage (30d-45 d): 1-1.2 mS/cm.
The dosage of the nutritional supplement is: in the early stage:
in the middle stage:
and (3) later stage:
has the advantages that: the aeroponics lettuce nutrient solution containing glycine can supplement the dosage of the nutrient solution required by lettuce growth according to the actual production requirement, and timely and accurately supplement the nutrient solution. The nutrient solution formula of the invention obviously improves the content of soluble sugar and ascorbic acid while reducing the content of nitrate of the aeroponics lettuce to reach the standard of fresh food (less than or equal to 432 mg/kg).
Drawings
FIG. 1 is a graph showing the distribution of the predicted and actual EC values according to the present invention.
Detailed Description
The following embodiments of the present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto, and all the embodiments using similar manufacturing methods or similar modifications of the present invention shall fall within the scope of the present invention.
Example 1 (control group)
The difference between the control group and the present case is that the formulation B of the south China agricultural leafy vegetable is adopted. The south China agricultural leafy vegetable B formula is as follows: 472mg/kg of calcium nitrate tetrahydrate, 202472mg/kg of potassium nitrate, 80472mg/kg of ammonium nitrate, 100472mg/kg of monopotassium phosphate, 174472mg/kg of potassium sulfate and 246472mg/kg of magnesium sulfate heptahydrate. The procedure was carried out as in example 2.
Example 2
1. And adding clear water into the nutrient solution pool to 2/3 of the volume of the nutrient solution pool, wherein the volume of the nutrient solution pool is 100L.
2. Weighing amino acid: glycine: 37.2 g; nutrient solution A: 23.4g of calcium nitrate tetrahydrate, 14.5g of calcium chloride dihydrate and 22.1g of potassium chloride; and (3) nutrient solution B: 6.5g of ammonium sulfate and 9.9g of monopotassium phosphate; and (3) nutrient solution C: 8.6g of potassium sulfate and 24.4g of manganese sulfate heptahydrate; trace elements: 3.0g of chelated iron, 0.286g of boric acid, 0.213g of manganous sulfate, 0.022g of zinc sulfate heptahydrate, 0.008g of anhydrous copper sulfate and 0.002g of sodium molybdate dihydrate. After dissolving in turn, adding into the nutrient solution pool in turn and stirring uniformly, adding clear water until the volume of the nutrient solution pool is 100L, and the EC value of the nutrient solution is as follows: 1.21 mS/cm.
3. Transplanting, and performing periodical aeroponic culture on the lettuce by using the nutrient solution to ensure the nutrition and moisture required by the normal growth of the lettuce.
4. The EC value of lettuce in the pre-growth period (0d-15d) is 1.05mS/cm according to the formula
The supplement dose was measured to be 0.14mS/cm and the EC value after supplementation was 1.19 mS/cm.
5. EC value of 1.32 is measured in the middle stage of lettuce growth (15d-30d), according to the formula
The supplement dose was measured to be 0.17mS/cm and the EC value after supplementation was 1.49 mS/cm.
6. The EC value of lettuce measured at the later growth stage (30d-45d) is 1.15mS/cm according to the formula
The supplement dose was measured to be 0.05mS/cm and the EC value after supplementation was 1.21 mS/cm.
Example 3
1. And adding clear water into the nutrient solution pool to 2/3 of the volume of the nutrient solution pool, wherein the volume of the nutrient solution pool is 100L.
2. Weighing amino acid: glycine: 37.8 g; nutrient solution A: 23.8g of calcium nitrate tetrahydrate, 14.9g of calcium chloride dihydrate and 22.5g of potassium chloride; and (3) nutrient solution B: 6.7g of ammonium sulfate and 10.1g of monopotassium phosphate; and (3) nutrient solution C: 8.8g of potassium sulfate and 24.8g of manganese sulfate heptahydrate; trace elements: 3.0g of chelated iron, 0.286g of boric acid, 0.213g of manganous sulfate, 0.022g of zinc sulfate heptahydrate, 0.008g of anhydrous copper sulfate and 0.002g of sodium molybdate dihydrate. After dissolving in turn, adding into the nutrient solution pool in turn and stirring uniformly, adding clear water until the volume of the nutrient solution pool is 100L, and the EC value of the nutrient solution is as follows: 1.21 mS/cm.
3. Transplanting, and performing periodical aeroponic culture on the lettuce by using the nutrient solution to ensure the nutrition and moisture required by the normal growth of the lettuce.
4. The EC value of lettuce in the pre-growth period (0d-15d) is 1.07mS/cm according to the formula
The supplement dose was measured to be 0.12mS/cm and the EC value after supplementation was 1.20 mS/cm.
5. The EC value of lettuce in the middle growth stage (15d-30d) is 1.35mS/cm according to the formula
The supplement dose was measured to be 0.14mS/cm and the EC value after supplementation was 1.48 mS/cm.
6. The EC value of lettuce measured at the later growth stage (30d-45d) is 1.16mS/cm according to the formula
The supplement dose was measured to be 0.04mS/cm and the EC value after supplementation was 1.21 mS/cm.
The individual weights of lettuce, soluble sugar and ascorbic acid in the present example and the control group were measured, and the measurement results are shown in the following table.
The results show that the special formula for the aeroponics lettuce nutrient solution reduces the content of nitrate in the lettuce to the fresh food standard and obviously improves the content of soluble sugar and the content of ascorbic acid in the lettuce under the condition of ensuring that the difference of the weight of each plant is not obvious. FIG. 1 is a graph showing the distribution of the predicted and actual EC values according to the present invention.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (6)
1. An aeroponics lettuce nutrient solution containing glycine is characterized in that: the nutrient solution comprises amino acids, nutrient solution A, nutrient solution B, nutrient solution C and trace elements;
wherein the amino acid is glycine;
the nutrient solution A comprises calcium nitrate tetrahydrate, calcium chloride dihydrate and potassium chloride;
the nutrient solution B comprises ammonium sulfate and potassium dihydrogen phosphate;
the nutrient solution C comprises potassium sulfate and heptahydrate manganese sulfate;
the microelements comprise chelated iron, boric acid, manganous sulfate, zinc sulfate heptahydrate, anhydrous copper sulfate and sodium molybdate dihydrate;
the dosage of each component is as follows: amino acids: 372-378 mg/kg; nutrient solution A: 600-612 mg/kg; and (3) nutrient solution B: 164-168 mg/kg; and (3) nutrient solution C: 330-336 mg/kg; trace elements: 35.31 mg/kg.
2. The aeroponic lettuce nutrient solution containing glycine as claimed in claim 1, wherein: the dosage of each component is as follows:
glycine: 372-378 mg/kg;
nutrient solution A: 234-238mg/kg of calcium nitrate tetrahydrate, 145-149mg/kg of calcium chloride dihydrate and 225-225 mg/kg of potassium chloride;
and (3) nutrient solution B: ammonium sulfate 65-67mg/kg, potassium dihydrogen phosphate 99-101 mg/kg;
and (3) nutrient solution C: 86-88mg/kg of potassium sulfate, and 248mg/kg of heptahydrate manganese sulfate-;
trace elements: 30mg/kg of chelated iron, 2.86mg/kg of boric acid, 2.13mg/kg of manganous sulfate, 0.22mg/kg of zinc sulfate heptahydrate, 0.08mg/kg of anhydrous copper sulfate and 0.02mg/kg of sodium molybdate dihydrate.
3. The preparation method of the aeroponic lettuce nutrient solution containing the glycine as the claim 1 or 2 is characterized in that the amino acid, the nutrient solution A, the nutrient solution B, the nutrient solution C and the trace elements are added into a container and fully dissolved by clear water according to the proportion to prepare the nutrient solution; the dosage of each component is as follows: amino acids: 372-378 mg/kg; nutrient solution A: 600-612 mg/kg; and (3) nutrient solution B: 164-168 mg/kg; and (3) nutrient solution C: 330-336 mg/kg; trace elements: 35.31 mg/kg;
wherein the relationship between the EC value of the nutrient solution and the concentration x of the nutrient solution is as follows: EC is 0.143+1.067 x.
4. The method according to claim 3, wherein the EC value of the nutrient solution is 1.21mS/cm when the concentration x of the nutrient solution is 1 dose.
5. The glycine-containing aeroponics lettuce nutrient solution as claimed in claim 1 or 2, which is characterized in that the nutrient solution is used as a nutrient supplement, and the EC value of the nutrient supplement is controlled, and the previous period (0d-15 d): 1-1.2 mS/cm, medium stage (15d-30 d): 1.2-1.5 mS/cm, and a later stage (30d-45 d): 1-1.2 mS/cm.
6. The nutritional supplement according to claim 5, wherein the dosage of the nutritional supplement is: in the early stage:
in the middle stage:
and (3) later stage:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017919.1A CN112624836A (en) | 2021-01-07 | 2021-01-07 | Glycine-containing aeroponics lettuce nutrient solution, nutrient supplement and preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110017919.1A CN112624836A (en) | 2021-01-07 | 2021-01-07 | Glycine-containing aeroponics lettuce nutrient solution, nutrient supplement and preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112624836A true CN112624836A (en) | 2021-04-09 |
Family
ID=75291062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110017919.1A Pending CN112624836A (en) | 2021-01-07 | 2021-01-07 | Glycine-containing aeroponics lettuce nutrient solution, nutrient supplement and preparation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112624836A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114982563A (en) * | 2022-07-10 | 2022-09-02 | 黑龙江八一农垦大学 | Amino acid application method for increasing sesamin content of sesamin leaves |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102584397A (en) * | 2012-02-17 | 2012-07-18 | 南京工业大学 | Water culturing nutrient solution as well as preparation method and application thereof |
| CN102771272A (en) * | 2011-05-11 | 2012-11-14 | 河北农业大学 | Method for reducing nitrate content of leaf vegetables through gama-aminobutyric acid |
| CN105110988A (en) * | 2015-09-22 | 2015-12-02 | 江苏农林职业技术学院 | Formula and preparation method of special nutrient solution of salt stress lettuce |
| CN105294194A (en) * | 2015-10-13 | 2016-02-03 | 新疆农业科学院农业机械化研究所 | Vegetable culture nutrient solution containing amino acid and preparation method thereof |
| CN105837287A (en) * | 2016-03-31 | 2016-08-10 | 太仓市璜泾永乐农机作业专业合作社 | High-quality nutrient solution for soilless culture, and preparation method and application thereof |
| CN106570768A (en) * | 2016-11-02 | 2017-04-19 | 江苏大学 | Representation method for greenhouse tomato sink strength |
| CN107347561A (en) * | 2017-08-10 | 2017-11-17 | 丽水市农业科学研究院 | The umbrella-type steel paper mulberry aerial fog cultivation method of fruit tree |
| CN110183261A (en) * | 2019-05-27 | 2019-08-30 | 潍坊市华以农业科技有限公司 | A kind of nutrient solution and ciltivating process suitable for deep liquid stream water planting romaine lettuce |
| CN110229033A (en) * | 2019-06-26 | 2019-09-13 | 大农(苏州)农业科技有限公司 | The high concentration fruits and vegetables mill water culture nutrient solution of zinc salt containing single amino acid, manganese salt chelate |
| CN111423275A (en) * | 2020-04-16 | 2020-07-17 | 上海农乐生物制品股份有限公司 | Universal compound amino acid soilless culture nutrient solution |
-
2021
- 2021-01-07 CN CN202110017919.1A patent/CN112624836A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771272A (en) * | 2011-05-11 | 2012-11-14 | 河北农业大学 | Method for reducing nitrate content of leaf vegetables through gama-aminobutyric acid |
| CN102584397A (en) * | 2012-02-17 | 2012-07-18 | 南京工业大学 | Water culturing nutrient solution as well as preparation method and application thereof |
| CN105110988A (en) * | 2015-09-22 | 2015-12-02 | 江苏农林职业技术学院 | Formula and preparation method of special nutrient solution of salt stress lettuce |
| CN105294194A (en) * | 2015-10-13 | 2016-02-03 | 新疆农业科学院农业机械化研究所 | Vegetable culture nutrient solution containing amino acid and preparation method thereof |
| CN105837287A (en) * | 2016-03-31 | 2016-08-10 | 太仓市璜泾永乐农机作业专业合作社 | High-quality nutrient solution for soilless culture, and preparation method and application thereof |
| CN106570768A (en) * | 2016-11-02 | 2017-04-19 | 江苏大学 | Representation method for greenhouse tomato sink strength |
| CN107347561A (en) * | 2017-08-10 | 2017-11-17 | 丽水市农业科学研究院 | The umbrella-type steel paper mulberry aerial fog cultivation method of fruit tree |
| CN110183261A (en) * | 2019-05-27 | 2019-08-30 | 潍坊市华以农业科技有限公司 | A kind of nutrient solution and ciltivating process suitable for deep liquid stream water planting romaine lettuce |
| CN110229033A (en) * | 2019-06-26 | 2019-09-13 | 大农(苏州)农业科技有限公司 | The high concentration fruits and vegetables mill water culture nutrient solution of zinc salt containing single amino acid, manganese salt chelate |
| CN111423275A (en) * | 2020-04-16 | 2020-07-17 | 上海农乐生物制品股份有限公司 | Universal compound amino acid soilless culture nutrient solution |
Non-Patent Citations (3)
| Title |
|---|
| 秦新惠: "《无土栽培技术》", 30 September 2015, 重庆大学出版社 * |
| 郭世荣: "《无土栽培学》", 31 January 2003, 中国农业出版社 * |
| 陈清 等: "《果类蔬菜养分管理》", 31 May 2015, 中国农业大学出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114982563A (en) * | 2022-07-10 | 2022-09-02 | 黑龙江八一农垦大学 | Amino acid application method for increasing sesamin content of sesamin leaves |
| CN114982563B (en) * | 2022-07-10 | 2024-02-27 | 黑龙江八一农垦大学 | Amino acid application method for improving sesamin content of sesamin leaves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106631509B (en) | Special formula fertilizer for soilless culture lettuce and preparation method thereof | |
| CN101462904B (en) | Production and use methods of organic high protein selenium-rich fertilizer | |
| CN103483095B (en) | Special slow/controlled release compound fertilizer for capsicum, and preparation method thereof | |
| CN103524221B (en) | Special slow control/release compound fertilizer for eggplant and preparation method thereof | |
| CN104591880A (en) | Hydroponic fertilizer special for fruits and vegetables | |
| CN104446761A (en) | High-phosphorus high-potassium liquid compound fertilizer as well as preparation method and application method thereof | |
| CN104326817A (en) | Special foliage spray water-soluble fertilizer for apples | |
| CN101298402B (en) | Compound fertilizer and preparation thereof | |
| CN104478551A (en) | Water-soluble composite fertilizer with high phosphorus and calcium, and preparation method thereof | |
| CN104672014A (en) | Special package fertilizer for sweet pomelo and fertilizing method thereof | |
| CN104355818A (en) | Tomato soilless culture medium | |
| CN104211499A (en) | High-phosphorus, high-zinc and high-magnesium liquid compound fertilizer as well as preparation method and application method thereof | |
| AU2019398381A1 (en) | Agaricus bisporus rich in ergosterol, cultivation method therefor and application thereof | |
| CN1887825A (en) | Complete liquid fertilizer | |
| CN112624836A (en) | Glycine-containing aeroponics lettuce nutrient solution, nutrient supplement and preparation method | |
| CN103988670A (en) | Method for increasing yield of tomatoes | |
| CN103694035A (en) | Preparation method of sustained released type nutrient for soilless culture of cucumbers | |
| CN102515916A (en) | Water-soluble fertilizer special for legume crops, and its preparation method and application method | |
| CN104788208A (en) | Chelated earthworm amino acid water-soluble micronutrient fertilizer and preparation method thereof | |
| CN102603411B (en) | Foliar fertilizer composition containing fulvic acid | |
| CN109251082A (en) | A kind of humic acid foliar fertilizer and preparation method thereof | |
| CN111269052A (en) | Soilless culture step-by-step type fertilizer special for strawberries and preparation method thereof | |
| CN108117436A (en) | A kind of zinc-rich nutrient liquid and its preparation method and application | |
| CN113443946A (en) | Water-soluble fertilizer for improving yield and quality of cucumbers and preparation method thereof | |
| CN103204722B (en) | Watermelon long-season cultivation slow-release formulated fertilizer and applications thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |