CN112209773A - Chitosan biological liquid nutrient mulching film and preparation method thereof - Google Patents
Chitosan biological liquid nutrient mulching film and preparation method thereof Download PDFInfo
- Publication number
- CN112209773A CN112209773A CN202011087168.2A CN202011087168A CN112209773A CN 112209773 A CN112209773 A CN 112209773A CN 202011087168 A CN202011087168 A CN 202011087168A CN 112209773 A CN112209773 A CN 112209773A
- Authority
- CN
- China
- Prior art keywords
- parts
- portions
- weight
- chitosan
- mulching film
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C11/00—Other nitrogenous fertilisers
-
- 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
- C05G3/60—Biocides or preservatives, e.g. disinfectants, pesticides or herbicides; Pest repellants or attractants
-
- 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
- C05G3/80—Soil conditioners
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Plant Pathology (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention discloses a chitosan biological liquid nutrient mulching film and a preparation method thereof, relating to the technical field of mulching films and comprising the following raw materials in parts by weight: 100 portions of water, 1 to 5 portions of high molecular chitosan, 1 to 500 portions of acetic acid, 1 to 5 portions of glycerol, 1 to 10 portions of dietary alkali, 1 to 5 portions of alginic acid, 2 to 5 portions of gelatin, 2 to 10 portions of amino acid, 2 to 3 portions of sucrose, 1 to 2 portions of polypeptide and 0.1 to 0.5 portion of trace element. Has the advantages that: the degradable mulching film disclosed by the invention has the advantages of heat preservation, moisture preservation and root protection, good use effect, and capability of being degraded 80-110 days after use, and substances after degradation can be converted into nutrient substances which can be absorbed by crops, so that the growth of the crops is promoted, the growth of harmful microorganisms is inhibited, the resistance of the crops is improved, and meanwhile, the effects of improving cultivated land and improving the soil microenvironment can be achieved.
Description
Technical Field
The invention relates to the technical field of mulching films, in particular to a chitosan biological liquid nutrient mulching film and a preparation method thereof.
Background
Mulching film, i.e., ground covering film, is usually a transparent or black PE film, and also has green and silver films, and is used for ground covering to increase the temperature of soil, maintain the moisture of soil, maintain the soil structure, prevent pests from attacking crops and diseases caused by certain microorganisms, etc., and promote the growth of plants. The agricultural mulching film plays a decisive role in high yield and harvest in agricultural production.
With the delay of the use years, there are many negative problems in overcoming the obstacles of the cultivation conditions. The conventional chemical ethylene mulching film isolates a soil plough layer, residual fragments of the mulching film of the harvested upper stubble crops or plants are still remained in the range of 30 cm of the plough layer even though the residual fragments are ploughed through the plough layer, so that no positioning isolation is caused, the root systems of the crops cannot be smoothly pricked, and seedlings cannot be pricked and developed completely. The gaseous pollution to the soil microenvironment is mainly caused by that the ethylene mulching film is difficult to degrade in the soil, but the ethylene gas in the ethylene mulching film volatilizes under the conditions of high temperature and high humidity, is accumulated after being applied for many years and is absorbed by the soil, so that the root system of the crop can promote the deterioration of the leather in advance, the growth and harvesting period is shortened, and the whole plant development and the economic yield of the crop are directly influenced. Meanwhile, the mulching film can influence the penetration of rainwater, a large amount of rainwater only exists in a space of more than 30 cm above the ground surface and is difficult to penetrate downwards, and the rainwater on the ground surface is easy to evaporate, so that the soil is seriously lack of water, the growth of crops is influenced, and the soil quality is easy to damage.
Disclosure of Invention
The invention aims to solve the problems and provide a chitosan biological liquid nutrient mulching film and a preparation method thereof.
The invention realizes the purpose through the following technical scheme:
a chitosan biological liquid nutrient mulching film is composed of the following raw materials in parts by weight: 100 portions of water, 1 to 5 portions of high molecular chitosan, 1 to 500 portions of acetic acid, 1 to 5 portions of glycerol, 1 to 10 portions of dietary alkali, 1 to 5 portions of alginic acid, 2 to 5 portions of gelatin, 2 to 10 portions of amino acid, 2 to 3 portions of sucrose, 1 to 2 portions of polypeptide and 0.1 to 0.5 portion of trace element.
Further, the material comprises the following raw materials in parts by weight: 200 parts of water, 3 parts of high-molecular chitosan, 10 parts of acetic acid, 1 part of glycerol, 2 parts of dietary alkali, 1 part of alginic acid, 2 parts of gelatin, 3 parts of amino acid, 2 parts of sucrose, 1 part of polypeptide and 0.1 part of trace elements.
Further, the material comprises the following raw materials in parts by weight: 500 parts of water, 5 parts of high-molecular chitosan, 300 parts of acetic acid, 5 parts of glycerol, 10 parts of dietary alkali, 5 parts of alginic acid, 5 parts of gelatin, 10 parts of amino acid, 3 parts of cane sugar, 2 parts of polypeptide and 0.5 part of trace element.
Further, the material comprises the following raw materials in parts by weight: 300 parts of water, 4 parts of high-molecular chitosan, 100 parts of acetic acid, 3 parts of glycerol, 8 parts of dietary alkali, 3 parts of alginic acid, 3 parts of gelatin, 8 parts of amino acid, 3 parts of sucrose, 2 parts of polypeptide and 0.3 part of trace elements.
Furthermore, the trace elements at least comprise any five of calcium, iron, zinc, selenium, magnesium, molybdenum and boron.
The invention also provides a preparation method for producing the chitosan biological liquid nutrient mulching film, which comprises the following steps:
a. heating water to 30 ℃, adding the macromolecular chitosan in parts by weight, and uniformly stirring;
b. b, adding the acetic acid in parts by weight into the solution obtained in the step a, continuously stirring for 24 hours, adding the glycerol and the edible alkali in parts by weight, uniformly stirring, and precipitating for 24 hours;
c. b, filtering the solution obtained in the step b to obtain clear solution, adding the alginic acid, the gelatin, the amino acid, the sucrose and the polypeptide in parts by weight into the clear solution, and continuously stirring for 0.5-2 hours to fully dissolve the alginic acid, the gelatin, the amino acid, the sucrose and the polypeptide;
d. and d, cooling the liquid obtained in the step c, and quantitatively filling and storing.
Further, the preparation process is carried out with constant temperature heating, and the heating temperature is 30-40 ℃.
Furthermore, in the step c, the trace elements are added in parts by weight during stirring, and the parts by weight of single element in the trace elements is not more than 30%.
The invention has the beneficial effects that: the degradable mulching film disclosed by the invention has the advantages of heat preservation, moisture preservation and root protection, good use effect, and capability of being degraded 80-110 days after use, and substances after degradation can be converted into nutrient substances which can be absorbed by crops, so that the growth of the crops is promoted, the growth of harmful microorganisms is inhibited, the resistance of the crops is improved, and meanwhile, the effects of improving cultivated land and improving the soil microenvironment can be achieved.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a chitosan biological liquid nutrient mulching film is composed of the following raw materials in parts by weight: 200 parts of water, 3 parts of high-molecular chitosan, 10 parts of acetic acid, 1 part of glycerol, 2 parts of dietary alkali, 1 part of alginic acid, 2 parts of gelatin, 3 parts of amino acid, 2 parts of sucrose, 1 part of polypeptide and 0.1 part of trace elements.
In this embodiment, the trace elements include 0.03 parts of calcium, 0.02 parts of iron, 0.01 parts of zinc, 0.03 parts of magnesium, and 0.01 parts of boron.
A preparation method for producing the chitosan biological liquid nutrient mulching film comprises the following steps:
a. heating water to 30 ℃, adding the macromolecular chitosan in parts by weight, and uniformly stirring;
b. b, adding the acetic acid in parts by weight into the solution obtained in the step a, continuously stirring for 24 hours, adding the glycerol and the edible alkali in parts by weight, uniformly stirring, and precipitating for 24 hours;
c. filtering the solution obtained in the step b to obtain clear solution, adding the alginic acid, the gelatin, the amino acid, the sucrose, the polypeptide and the trace elements in parts by weight into the clear solution, and continuously stirring for 0.5-2 hours to fully dissolve the alginic acid, the gelatin, the amino acid, the sucrose, the polypeptide and the trace elements;
d. and d, cooling the liquid obtained in the step c, and quantitatively filling and storing.
Further, the preparation process is carried out with constant temperature heating, and the heating temperature is 30-40 ℃.
Example two:
a chitosan biological liquid nutrient mulching film is composed of the following raw materials in parts by weight: 500 parts of water, 5 parts of high-molecular chitosan, 300 parts of acetic acid, 5 parts of glycerol, 10 parts of dietary alkali, 5 parts of alginic acid, 5 parts of gelatin, 10 parts of amino acid, 3 parts of cane sugar, 2 parts of polypeptide and 0.5 part of trace element.
In this embodiment, the trace elements include 0.15 parts of calcium, 0.1 parts of iron, 0.08 parts of zinc, 0.05 parts of magnesium, 0.05 parts of molybdenum, and 0.07 parts of boron.
A preparation method for producing the chitosan biological liquid nutrient mulching film comprises the following steps:
a. heating water to 30 ℃, adding the macromolecular chitosan in parts by weight, and uniformly stirring;
b. b, adding the acetic acid in parts by weight into the solution obtained in the step a, continuously stirring for 24 hours, adding the glycerol and the edible alkali in parts by weight, uniformly stirring, and precipitating for 24 hours;
c. filtering the solution obtained in the step b to obtain clear solution, adding the alginic acid, the gelatin, the amino acid, the sucrose, the polypeptide and the trace elements in parts by weight into the clear solution, and continuously stirring for 0.5-2 hours to fully dissolve the alginic acid, the gelatin, the amino acid, the sucrose, the polypeptide and the trace elements;
d. and d, cooling the liquid obtained in the step c, and quantitatively filling and storing.
Further, the preparation process is carried out with constant temperature heating, and the heating temperature is 30-40 ℃.
Example three:
a chitosan biological liquid nutrient mulching film is composed of the following raw materials in parts by weight: 300 parts of water, 4 parts of high-molecular chitosan, 100 parts of acetic acid, 3 parts of glycerol, 8 parts of dietary alkali, 3 parts of alginic acid, 3 parts of gelatin, 8 parts of amino acid, 3 parts of sucrose, 2 parts of polypeptide and 0.3 part of trace elements.
In this example, the trace elements include 0.06 parts of calcium, 0.06 parts of iron, 0.04 parts of zinc, 0.02 parts of selenium, 0.04 parts of magnesium, 0.03 parts of molybdenum, and 0.05 parts of boron.
A preparation method for producing the chitosan biological liquid nutrient mulching film comprises the following steps:
a. heating water to 30 ℃, adding the macromolecular chitosan in parts by weight, and uniformly stirring;
b. b, adding the acetic acid in parts by weight into the solution obtained in the step a, continuously stirring for 24 hours, adding the glycerol and the edible alkali in parts by weight, uniformly stirring, and precipitating for 24 hours;
c. filtering the solution obtained in the step b to obtain clear solution, adding the alginic acid, the gelatin, the amino acid, the sucrose, the polypeptide and the trace elements in parts by weight into the clear solution, and continuously stirring for 0.5-2 hours to fully dissolve the alginic acid, the gelatin, the amino acid, the sucrose, the polypeptide and the trace elements;
d. and d, cooling the liquid obtained in the step c, and quantitatively filling and storing.
Further, the preparation process is carried out with constant temperature heating, and the heating temperature is 30-40 ℃.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (8)
1. A chitosan biological liquid nutrient mulching film is characterized in that: the composition is characterized by comprising the following raw materials in parts by weight: 100 portions of water, 1 to 5 portions of high molecular chitosan, 1 to 500 portions of acetic acid, 1 to 5 portions of glycerol, 1 to 10 portions of dietary alkali, 1 to 5 portions of alginic acid, 2 to 5 portions of gelatin, 2 to 10 portions of amino acid, 2 to 3 portions of sucrose, 1 to 2 portions of polypeptide and 0.1 to 0.5 portion of trace element.
2. The chitosan biological fluid nutrient mulching film according to claim 1, wherein: the composition is characterized by comprising the following raw materials in parts by weight: 200 parts of water, 3 parts of high-molecular chitosan, 10 parts of acetic acid, 1 part of glycerol, 2 parts of dietary alkali, 1 part of alginic acid, 2 parts of gelatin, 3 parts of amino acid, 2 parts of sucrose, 1 part of polypeptide and 0.1 part of trace elements.
3. The chitosan biological fluid nutrient mulching film according to claim 1, wherein: the composition is characterized by comprising the following raw materials in parts by weight: 500 parts of water, 5 parts of high-molecular chitosan, 300 parts of acetic acid, 5 parts of glycerol, 10 parts of dietary alkali, 5 parts of alginic acid, 5 parts of gelatin, 10 parts of amino acid, 3 parts of cane sugar, 2 parts of polypeptide and 0.5 part of trace element.
4. The chitosan biological fluid nutrient mulching film according to claim 1, wherein: the composition is characterized by comprising the following raw materials in parts by weight: 300 parts of water, 4 parts of high-molecular chitosan, 100 parts of acetic acid, 3 parts of glycerol, 8 parts of dietary alkali, 3 parts of alginic acid, 3 parts of gelatin, 8 parts of amino acid, 3 parts of sucrose, 2 parts of polypeptide and 0.3 part of trace elements.
5. The chitosan biological fluid nutrient mulching film according to any one of claims 1-4, wherein: the microelements at least comprise any five of calcium, iron, zinc, selenium, magnesium, molybdenum and boron.
6. The preparation method for preparing the chitosan biological liquid nutrient mulching film as claimed in any one of claims 1 to 4, is characterized in that: the method comprises the following steps:
a. heating water to 30 ℃, adding the macromolecular chitosan in parts by weight, and uniformly stirring;
b. b, adding the acetic acid in parts by weight into the solution obtained in the step a, continuously stirring for 24 hours, adding the glycerol and the edible alkali in parts by weight, uniformly stirring, and precipitating for 24 hours;
c. b, filtering the solution obtained in the step b to obtain clear solution, adding the alginic acid, the gelatin, the amino acid, the sucrose and the polypeptide in parts by weight into the clear solution, and continuously stirring for 0.5-2 hours to fully dissolve the alginic acid, the gelatin, the amino acid, the sucrose and the polypeptide;
d. and d, cooling the liquid obtained in the step c, and quantitatively filling and storing.
7. The preparation method of the chitosan biological liquid nutrient mulching film according to claim 6, which is characterized in that: the preparation process is carried out with constant temperature heating, the heating temperature is 30-40 ℃.
8. The preparation method of the chitosan biological liquid nutrient mulching film according to claim 6, which is characterized in that: and c, adding the trace elements in parts by weight in the stirring process in the step c, wherein the parts by weight of single elements in the trace elements are not more than 30%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011087168.2A CN112209773A (en) | 2020-10-12 | 2020-10-12 | Chitosan biological liquid nutrient mulching film and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011087168.2A CN112209773A (en) | 2020-10-12 | 2020-10-12 | Chitosan biological liquid nutrient mulching film and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112209773A true CN112209773A (en) | 2021-01-12 |
Family
ID=74053646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011087168.2A Pending CN112209773A (en) | 2020-10-12 | 2020-10-12 | Chitosan biological liquid nutrient mulching film and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112209773A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219625A (en) * | 2020-10-12 | 2021-01-15 | 张大庆 | Chitosan degradable biological fruit nutrition film and preparation method thereof |
| CN113024894A (en) * | 2021-04-06 | 2021-06-25 | 华南农业大学 | Sowable multifunctional gel mulching film for inhibiting weed growth and preparation and application thereof |
| CN115197580A (en) * | 2022-06-24 | 2022-10-18 | 大连益丰农生物科技有限公司 | Composite liquid mulching film and preparation method thereof |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555342A (en) * | 2013-10-25 | 2014-02-05 | 青岛海大生物集团有限公司 | Method for preparing liquid alga planting mulch |
| CN105753599A (en) * | 2015-11-26 | 2016-07-13 | 中国海洋大学 | Total-alga biological mulching film and method for preparing same |
| CN107987547A (en) * | 2017-12-21 | 2018-05-04 | 苏州星火丰盈环保包装有限公司 | A kind of multifunctional liquid biological mulch film |
| CN109305852A (en) * | 2018-10-25 | 2019-02-05 | 慕善斌 | A kind of chitosan biological liquid foliar nutrition protective film and preparation method thereof |
| CN109456649A (en) * | 2018-10-25 | 2019-03-12 | 慕善斌 | A kind of chitin biological liquid foliar nutrition protective film and preparation method thereof |
| CN109456512A (en) * | 2018-10-25 | 2019-03-12 | 慕善斌 | A kind of chitosan degradable biological liquid solid mulch and preparation method thereof |
| CN110229364A (en) * | 2019-07-09 | 2019-09-13 | 张大庆 | A kind of chitin biological liquid degradable mulch and preparation method thereof |
| CN110256736A (en) * | 2019-07-09 | 2019-09-20 | 张大庆 | A kind of chitin biological liquid solid degradable mulch and preparation method thereof |
| CN110423380A (en) * | 2019-08-12 | 2019-11-08 | 山东农业大学 | A kind of degradable liquid mulch film and preparation method thereof |
| CN112219625A (en) * | 2020-10-12 | 2021-01-15 | 张大庆 | Chitosan degradable biological fruit nutrition film and preparation method thereof |
-
2020
- 2020-10-12 CN CN202011087168.2A patent/CN112209773A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103555342A (en) * | 2013-10-25 | 2014-02-05 | 青岛海大生物集团有限公司 | Method for preparing liquid alga planting mulch |
| CN105753599A (en) * | 2015-11-26 | 2016-07-13 | 中国海洋大学 | Total-alga biological mulching film and method for preparing same |
| CN107987547A (en) * | 2017-12-21 | 2018-05-04 | 苏州星火丰盈环保包装有限公司 | A kind of multifunctional liquid biological mulch film |
| CN109305852A (en) * | 2018-10-25 | 2019-02-05 | 慕善斌 | A kind of chitosan biological liquid foliar nutrition protective film and preparation method thereof |
| CN109456649A (en) * | 2018-10-25 | 2019-03-12 | 慕善斌 | A kind of chitin biological liquid foliar nutrition protective film and preparation method thereof |
| CN109456512A (en) * | 2018-10-25 | 2019-03-12 | 慕善斌 | A kind of chitosan degradable biological liquid solid mulch and preparation method thereof |
| CN110229364A (en) * | 2019-07-09 | 2019-09-13 | 张大庆 | A kind of chitin biological liquid degradable mulch and preparation method thereof |
| CN110256736A (en) * | 2019-07-09 | 2019-09-20 | 张大庆 | A kind of chitin biological liquid solid degradable mulch and preparation method thereof |
| CN110423380A (en) * | 2019-08-12 | 2019-11-08 | 山东农业大学 | A kind of degradable liquid mulch film and preparation method thereof |
| CN112219625A (en) * | 2020-10-12 | 2021-01-15 | 张大庆 | Chitosan degradable biological fruit nutrition film and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 王世宇: "《药用辅料学》", 30 April 2019, 中国中医药出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112219625A (en) * | 2020-10-12 | 2021-01-15 | 张大庆 | Chitosan degradable biological fruit nutrition film and preparation method thereof |
| CN113024894A (en) * | 2021-04-06 | 2021-06-25 | 华南农业大学 | Sowable multifunctional gel mulching film for inhibiting weed growth and preparation and application thereof |
| CN113024894B (en) * | 2021-04-06 | 2022-06-28 | 华南农业大学 | Sowing type multifunctional gel mulching film for inhibiting weed growth and preparation and application thereof |
| CN115197580A (en) * | 2022-06-24 | 2022-10-18 | 大连益丰农生物科技有限公司 | Composite liquid mulching film and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112209773A (en) | Chitosan biological liquid nutrient mulching film and preparation method thereof | |
| CN104855115B (en) | A kind of cultural method for promoting northern potato area flat land sweet potato potato to do the super ton of stable yields | |
| CN105474956B (en) | The high-yield planting method of sugarcane | |
| CN110338008B (en) | Quinoa seedling raising, transplanting and planting method suitable for coastal saline-alkali soil | |
| CN105493678A (en) | Method for improving orchard soil | |
| CN107580843A (en) | A kind of cultural method of the early film of spring sowing potato maize straw three covering | |
| CN104756745A (en) | Weeding-free transplanting method for sugarcane detoxification original seedling | |
| CN112219625A (en) | Chitosan degradable biological fruit nutrition film and preparation method thereof | |
| CN108184561A (en) | A kind of implantation methods of Chinese mesona herb | |
| CN108990729B (en) | Film covering stress-resistant high-yield planting method for corn in cold area | |
| CN104604388B (en) | The vertical type rotary tillage processing method of plantation wheat soil | |
| CN111670768A (en) | Loess arid region corn dry farming water-saving cultivation method | |
| CN109168925B (en) | Cultivation method for improving quality and yield of guavas in saline-alkali soil | |
| CN106717901A (en) | A kind of sweet potato green high-efficient cultural method | |
| CN110839472A (en) | Seedling raising and afforestation method for ammopiptanthus mongolicus in desert area | |
| CN106258452B (en) | Barnyard grass biological improvement heavy saline-alkali soil and high-yield and high-quality planting method | |
| CN106069062B (en) | A kind of extremely frigid zones toxicity-removing white potato cultural method | |
| RU2415560C1 (en) | Method to grow scion-rooted grape seedlings | |
| CN114145199A (en) | Efficient sesbania-wheat crop rotation method for coastal saline-alkali soil | |
| CN107295891A (en) | A kind of kidney bean method for non-polluted cultivation | |
| CN113179886A (en) | Selenium-rich quality-improving cultivation method for sweet waxy corn | |
| CN108718885B (en) | High-quality and high-yield planting method for drumstick trees in subtropical regions | |
| CN106613239A (en) | Plastic-mulch covering planting method for oats | |
| CN111937694A (en) | Corn cultivation method in northeast region | |
| CN110972830A (en) | High-yield planting method for traditional Chinese medicinal materials |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210112 |
|
| RJ01 | Rejection of invention patent application after publication |