CN114946570A - Operation method for improving low-temperature cold damage resistance of rice seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer - Google Patents
Operation method for improving low-temperature cold damage resistance of rice seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer Download PDFInfo
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- CN114946570A CN114946570A CN202210494839.XA CN202210494839A CN114946570A CN 114946570 A CN114946570 A CN 114946570A CN 202210494839 A CN202210494839 A CN 202210494839A CN 114946570 A CN114946570 A CN 114946570A
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- 241000209094 Oryza Species 0.000 title claims abstract description 57
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 57
- 235000009566 rice Nutrition 0.000 title claims abstract description 57
- 239000003337 fertilizer Substances 0.000 title claims abstract description 41
- 230000002595 cold damage Effects 0.000 title claims abstract description 37
- 241000411851 herbal medicine Species 0.000 title claims abstract description 36
- 239000007788 liquid Substances 0.000 title claims abstract description 36
- 238000002791 soaking Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 230000000694 effects Effects 0.000 claims abstract description 14
- 230000035784 germination Effects 0.000 claims abstract description 14
- 238000009331 sowing Methods 0.000 claims abstract description 10
- 239000002253 acid Substances 0.000 claims abstract description 4
- 239000003513 alkali Substances 0.000 claims abstract description 4
- 230000000249 desinfective effect Effects 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 208000009084 Cold Injury Diseases 0.000 claims description 11
- 239000004744 fabric Substances 0.000 claims description 9
- 235000013339 cereals Nutrition 0.000 claims description 5
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000000645 desinfectant Substances 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 235000013336 milk Nutrition 0.000 claims description 3
- 239000008267 milk Substances 0.000 claims description 3
- 210000004080 milk Anatomy 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012286 potassium permanganate Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 2
- 102000004190 Enzymes Human genes 0.000 abstract description 10
- 108090000790 Enzymes Proteins 0.000 abstract description 10
- 244000052616 bacterial pathogen Species 0.000 abstract description 6
- 230000004083 survival effect Effects 0.000 abstract description 6
- 229920002472 Starch Polymers 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 4
- 235000015097 nutrients Nutrition 0.000 abstract description 4
- 235000019698 starch Nutrition 0.000 abstract description 4
- 239000008107 starch Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 3
- 230000021121 meiosis Effects 0.000 description 3
- 208000035240 Disease Resistance Diseases 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 210000001161 mammalian embryo Anatomy 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 241000238631 Hexapoda Species 0.000 description 1
- 241000700605 Viruses Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 235000013601 eggs Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036512 infertility Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000010152 pollination Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001850 reproductive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
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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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
- A01C1/08—Immunising seed
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
-
- 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
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Botany (AREA)
- Pest Control & Pesticides (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention discloses an operation method for soaking and raising seedlings of Chinese herbal medicine liquid fertilizer rice and improving low-temperature cold damage resistance of seedlings, which relates to the technical field of rice seedling raising, and comprises the following steps: selecting seeds, preparing a container, adding water for soaking, disinfecting, accelerating germination, transplanting and sowing seedlings, preparing fertilizers and applying fertilizers, wherein rice seeds need to be fully aired for 2-3 days in the first step, substances such as oil, acid, alkali and the like cannot be mixed in the container in the second step, the water temperature is ensured to be 30-50 ℃ in the third step, the rice seeds are soaked, the activity of seed enzymes begins to rise after the seeds absorb water, endosperm starch is gradually dissolved into sugar under the action of the enzyme activity, nutrients required by radicles, germs and hypocotyls are released, the survival rate of seedling can be effectively improved, the rice seedlings are applied with the Chinese herbal medicine liquid fertilizer, and the yield per mu of the seedlings is improved.
Description
Technical Field
The invention relates to the technical field of rice seedling raising, in particular to an operation method for improving low-temperature cold damage resistance of rice seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer.
Background
The seedling raising means the raising of seedlings. The original meaning is that the seedlings are cultivated in a nursery, a hotbed or a greenhouse and are ready to be transplanted into the land for planting. It can also refer to the stage of various organisms after artificial protection until they can survive independently. In common words, "the seedling is strong and half harvested". Seedling raising is a work which is high in labor intensity, time-consuming and high in technical performance, seed soaking is a flow of agricultural planting, namely for seeds with slow germination, the seeds need to be soaked before sowing, and the purpose of seed soaking is to promote the seeds to germinate earlier and kill insect eggs and viruses.
The late spring coldness in the north during seedling raising causes the seedling cold injury, and the long time in the field after transplanting is affected by low temperature to cause the delay cold injury of the heading delay or the flowering pollination delay of rice; the relatively strong low temperature is encountered in the booting stage, particularly in the process of forming reproductive organs within a short time to cause the obstacle type cold damage of glumous sterility; mixed cold damage generated by comprehensively generating multiple cold damages in the same growth period. The single type of cold damage rarely occurs in the production, and multiple types of cold damage frequently occur simultaneously, so that the rice production is greatly damaged, the yield reduction amplitude is large, and the harvest is influenced; in view of the above, an operation method for improving the low temperature cold damage resistance of seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer is provided.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an operation method for improving the low-temperature cold damage resistance of rice seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer, and solves the problems in the background technology.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: an operation method for improving low-temperature cold damage resistance of seedlings by soaking seeds and raising seedlings of Chinese herbal medicine liquid fertilizer rice comprises the following steps:
step one, selecting seeds, selecting full-grain rice seeds, airing the rice seeds, frequently turning the rice seeds, and then using a density of (1.08-1.13) x 103kg/m 3 Selecting seeds with saline water or yellow mud water, removing blighted grains, cleaning the seeds with clear water, and in the aspect of variety selection, the method not only ensures the yield, quality, disease resistance, tillering capacity and local approval requirements of the variety, but also meets the cold resistance requirement and the requirement of mature in proper period of the variety so as to prevent delayed cold damage caused by insufficient accumulated temperature or cross-area planting and improve the capability of resisting obstacle type cold damage in the meiosis period;
step two, preparing a container, namely preparing a clean and pollution-free container, and disinfecting and wiping the container by using wet cloth and disinfectant;
step three, adding water for soaking, after the container is prepared, adding two thirds of warm water into the basin, and soaking the seeds in the warm water for 1-3 hours to enable the seeds to absorb water quickly and achieve the water content capable of normally sprouting;
step four, disinfection is carried out, after the seeds are soaked, the seeds are taken out of the container, soaked in the diluted potassium permanganate solution, rubbed and washed by wearing gloves, impurities on the surfaces of the seeds are cleaned, and finally the seeds are fished out and placed in a shade;
step five, accelerating germination, namely fully wrapping the seeds by using a piece of wet cloth strip, and waiting for the seeds to germinate;
step six, transplanting and sowing the seedlings, namely selecting a matched sowing device to perform precision quantity thin sowing, cultivating strong seedlings with tillers, and transplanting the seedlings;
step seven, fertilizer preparation, namely selecting Chinese herbal medicines and adding liquid fertilizer for mixing, and fully stirring;
and step eight, fertilizing, wherein 110 kilograms of the Chinese herbal medicine liquid fertilizer is added into 100ml of the Chinese herbal medicine liquid fertilizer, 15-20 kilograms of the Chinese herbal medicine liquid fertilizer is needed for 667 square meters per mu, and a sprayer with an atomization effect is selected for uniform spraying.
Preferably, the rice seeds in the first step need to be fully aired for 2-3 days, the airing can kill germs attached to the surfaces of the seeds by using short-wave light of solar spectrum, and meanwhile, the activity of enzymes in the seeds can be enhanced after the seeds are aired, so that the germination vigor is improved, and the germination is fast and regular.
Preferably, in the second step, substances such as oil, acid and alkali cannot be mixed in the container, so that a good environment can be provided for the seeds, and the survival rate of the germination acceleration can be improved.
Preferably, in the third step, the water temperature is ensured to be between 30 and 50 ℃, the phenomenon that the temperature is too high, seeds are easily scalded due to the too high temperature, the later stage germination is influenced, the phenomenon that the temperature is too high, the seeds are easily scalded due to the too high temperature, the later stage germination is influenced, the rice seed soaking process is the water absorption process of the seeds, after the seeds absorb water, the activity of seed enzymes begins to rise, under the action of the enzyme activity, endosperm starch is gradually dissolved into sugar, and nutrients required by radicles, germs and hypocotyls are released. When the rice seeds absorb water to 24% of the weight of the rice, the embryo starts to sprout, which is called chest breaking or white exposing. When the water absorption capacity of the seeds reaches 40 percent of the weight of the grains, the seeds can normally germinate, and the water absorption capacity is the saturated water absorption capacity of the seeds. The time for reaching the water absorption is influenced by the temperature of the seed soaking water, and within a certain temperature range, the higher the temperature is, the faster the seeds absorb water, and the shorter the time for reaching the saturated water absorption is. .
Preferably, the fourth step is to soak the seeds for 3 to 5 minutes.
Preferably, the cloth strips for wrapping the seeds in the fifth step are placed in an environment at 20 ℃ for 3-5 days, so that the seeds can fully germinate.
Preferably, in the step eight, 3-4 liters of Chinese herbal medicine liquid fertilizer is applied to each mu of land along with water.
Preferably, when the temperature is lower than 17 ℃, a water layer of more than 15cm is poured into the container, the tire is protected by deep water, the obstacle type cold damage is prevented, and the water level is recovered immediately after the low temperature is over.
Preferably, the intermittent irrigation is carried out in the milk stage, and the water is cut off 35 days after the ear emergence, so that the temperature can be effectively ensured, and the survival rate of the seedlings can be improved.
(III) advantageous effects
The invention provides an operation method for improving low-temperature cold damage resistance of rice seedlings by soaking seeds and raising seedlings of rice through Chinese herbal medicine liquid fertilizer. The method has the following beneficial effects:
(1) according to the operation method for improving the low-temperature cold damage resistance of the rice seedlings by soaking the rice seeds and absorbing water by the seeds, the activity of seed enzymes begins to rise, endosperm starch is gradually dissolved into sugar under the action of the enzyme activity, nutrients required by radicles, germs and hypocotyls are released, the survival rate of the seedlings can be effectively improved, the rice seedlings are fertilized by the Chinese herbal medicine liquid fertilizer, and the yield per mu of the rice seedlings is improved.
(2) The operation method for improving the low-temperature cold damage resistance of the rice seedlings by soaking and raising the seedlings with the Chinese herbal medicine liquid fertilizer can prevent delayed cold damage caused by insufficient accumulated temperature or cross-area planting to a certain extent by selecting rice seeds and simultaneously improve the resistance to obstacle type cold damage in the meiosis stage.
Drawings
FIG. 1 is a schematic flow chart of the steps of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious 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.
Referring to fig. 1, the present invention provides a technical solution: an operation method for improving low-temperature cold damage resistance of seedlings by soaking seeds and raising seedlings of Chinese herbal medicine liquid fertilizer rice comprises the following steps:
step one, selecting seeds, selecting full-grain rice seeds, airing the rice seeds, frequently turning the rice seeds, and then using a density of (1.08-1.13) x 103kg/m 3 Selecting seeds with saline water or yellow mud water, removing blighted grains, cleaning the seeds with clear water, and ensuring the yield, quality, disease resistance and differentiation of the variety in the aspect of variety selectionIn addition to the requirements of tillering capacity and local approval, the cold resistance requirement and the requirement of mature in a proper period of the variety are also met, so that the delayed cold damage caused by insufficient accumulated temperature or cross-area planting is prevented, and the resistance capability to the obstacle type cold damage in the meiosis period is improved;
step two, preparing a container, namely preparing a clean and pollution-free container, and disinfecting and wiping the container by using wet cloth and disinfectant;
step three, adding water for soaking, after the container is prepared, adding two thirds of warm water into the basin, and soaking the seeds in the warm water for 1-3 hours to enable the seeds to absorb water quickly and achieve the water content capable of normally sprouting;
step four, disinfection is carried out, after the seeds are soaked, the seeds are taken out of the container, soaked in the diluted potassium permanganate solution, rubbed and washed by wearing gloves, impurities on the surfaces of the seeds are cleaned, and finally the seeds are fished out and placed in a shade;
step five, accelerating germination, namely fully wrapping the seeds by using a piece of wet cloth strip, and waiting for the seeds to germinate;
step six, transplanting and sowing the seedlings, namely selecting a matched sowing device to perform precision quantity thin sowing, cultivating strong seedlings with tillers, and transplanting the seedlings;
seventhly, preparing a fertilizer, namely selecting Chinese herbal medicines and adding a liquid fertilizer for mixing, and fully stirring;
and step eight, fertilizing, wherein 110 kilograms of the Chinese herbal medicine liquid fertilizer is added into 100ml of the Chinese herbal medicine liquid fertilizer, 15-20 kilograms of the Chinese herbal medicine liquid fertilizer is needed for 667 square meters per mu, and a sprayer with an atomization effect is selected for uniform spraying.
In the first step, the rice seeds need to be fully aired for 2-3 days, the aired seeds can kill germs attached to the surfaces of the seeds by using short wave light of solar spectrum, and meanwhile, the activity of enzymes in the seeds can be enhanced after the seeds are aired, so that the germination vigor is improved, and the rice seeds are quick and regular in germination.
In the second step, substances such as oil, acid, alkali and the like cannot be mixed in the container, so that a good environment can be provided for seeds, and the survival rate of germination acceleration is improved.
And in the third step, the water temperature is ensured to be between 30 and 50 ℃, the phenomenon that the seeds are easily scalded and the later stage germination is influenced due to overhigh temperature is avoided, the rice seed soaking process is the water absorption process of the seeds, the activity of seed enzymes begins to rise after the seeds absorb water, endosperm starch is gradually dissolved into sugar under the action of the enzyme activity, and nutrients required by radicles, germs and hypocotyls are released. When the rice seeds absorb water to 24% of the weight of the rice, the embryo starts to sprout, which is called chest breaking or white exposing. When the water absorption capacity of the seeds reaches 40 percent of the weight of the grains, the seeds can normally germinate, and the water absorption capacity is the saturated water absorption capacity of the seeds. The time for reaching the water absorption is influenced by the temperature of the seed soaking water, and within a certain temperature range, the higher the temperature is, the faster the seeds absorb water, and the shorter the time for reaching the saturated water absorption is.
In the fourth step, the seeds are soaked for 3-5 minutes.
And fifthly, placing the cloth strips which need to wrap the seeds in an environment with the temperature of 20 ℃ for 3-5 days to ensure that the seeds can fully germinate.
And eighthly, using 3-4 liters of Chinese herbal medicine liquid fertilizer per mu along with water for flushing.
When the temperature is lower than 17 ℃, a water layer with the depth of more than 15cm is poured, and the tire is protected in deep water, so that the obstacle type cold injury is prevented. And after the low temperature, the water level is immediately recovered.
The intermittent irrigation is carried out in the milk stage, and the water is cut off 35 days after the ear emergence, so that the temperature can be effectively ensured, and the survival rate of the seedlings can be improved.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An operation method for soaking seeds and raising seedlings of Chinese herbal medicine liquid fertilizer rice to improve low-temperature cold damage resistance of seedlings is characterized by comprising the following steps of: the operation method for improving the low-temperature cold damage resistance of the rice seedlings by soaking and raising the seedlings of the Chinese herbal medicine liquid fertilizer rice comprises the following steps:
step one, selecting seeds, selecting full-grain rice seeds, and carrying out seed selectionThe rice seeds are aired and often turned over, and then the rice seeds are dried by the density of (1.08-1.13) multiplied by 103kg/m 3 Selecting seeds from saline water or yellow mud water, removing blighted grains, and cleaning the seeds with clear water;
step two, preparing a container, namely preparing a clean and pollution-free container, and disinfecting and wiping the container by using wet cloth and disinfectant;
step three, adding water for soaking, after a container is prepared, adding two thirds of warm water into a basin, and soaking seeds in the warm water for 1-3 hours;
step four, disinfection is carried out, after the seeds are soaked, the seeds are taken out of the container, soaked in the diluted potassium permanganate solution, rubbed and washed by wearing gloves, impurities on the surfaces of the seeds are cleaned, and finally the seeds are fished out and placed in a shade;
step five, accelerating germination, namely fully wrapping the seeds by using a piece of wet cloth strip, and waiting for the seeds to germinate;
step six, transplanting and sowing the seedlings, namely selecting a matched seeder to carry out precision quantity thin sowing, cultivating strong seedlings with tillers, and transplanting the seedlings;
step seven, fertilizer preparation, namely selecting Chinese herbal medicines and adding liquid fertilizer for mixing, and fully stirring;
and step eight, fertilizing, wherein 100 kilograms of water is added into 100ml of the Chinese herbal medicine liquid fertilizer, 15-20 kilograms of the Chinese herbal medicine liquid fertilizer is needed to be used for 667 square meters per mu, and a sprayer with an atomization effect is selected for uniform spraying.
2. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: in the first step, the rice seeds need to be fully aired for 2-3 days.
3. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: in the second step, substances such as oil, acid, alkali and the like cannot be mixed in the container.
4. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: in the third step, the water temperature is ensured to be between 30 and 50 ℃.
5. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: in the fourth step, the seeds are soaked for 3-5 minutes.
6. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: and placing the cloth strips which need to wrap the seeds in the step five in an environment of 20 ℃ for 3-5 days.
7. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: and eighthly, 3-4 liters of Chinese herbal medicine liquid fertilizer is applied to each mu of land along with water.
8. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking seeds and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 1, is characterized in that: when the temperature is lower than 17 ℃, water layers with the length of more than 15cm are poured, the tires are protected in deep water, the obstacle type cold damage is prevented, and the water level is recovered immediately after the temperature is over.
9. The operation method for improving the low-temperature cold injury resistance of seedlings by soaking and raising seedlings of rice with Chinese herbal medicine liquid fertilizer according to claim 8, is characterized in that: irrigating intermittently in the milk stage, and cutting off water 35 days after ear sprouting.
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| CN202210494839.XA CN114946570A (en) | 2022-05-07 | 2022-05-07 | Operation method for improving low-temperature cold damage resistance of rice seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer |
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| CN202210494839.XA CN114946570A (en) | 2022-05-07 | 2022-05-07 | Operation method for improving low-temperature cold damage resistance of rice seedlings by soaking and raising rice seedlings with Chinese herbal medicine liquid fertilizer |
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Application publication date: 20220830 |