CN117561943A - Method for relieving phytotoxicity of wart granule wild rice herbicide - Google Patents
Method for relieving phytotoxicity of wart granule wild rice herbicide Download PDFInfo
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- CN117561943A CN117561943A CN202311861491.4A CN202311861491A CN117561943A CN 117561943 A CN117561943 A CN 117561943A CN 202311861491 A CN202311861491 A CN 202311861491A CN 117561943 A CN117561943 A CN 117561943A
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- 241000746966 Zizania Species 0.000 title claims abstract description 47
- 235000002636 Zizania aquatica Nutrition 0.000 title claims abstract description 47
- 208000000260 Warts Diseases 0.000 title claims abstract description 46
- 201000010153 skin papilloma Diseases 0.000 title claims abstract description 46
- 239000004009 herbicide Substances 0.000 title claims abstract description 36
- 230000002363 herbicidal effect Effects 0.000 title claims abstract description 35
- 238000000034 method Methods 0.000 title claims abstract description 33
- 231100000674 Phytotoxicity Toxicity 0.000 title claims abstract description 31
- 239000008187 granular material Substances 0.000 title claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000002689 soil Substances 0.000 claims abstract description 61
- 241000196324 Embryophyta Species 0.000 claims abstract description 46
- 235000013339 cereals Nutrition 0.000 claims abstract description 39
- 239000001963 growth medium Substances 0.000 claims abstract description 37
- 238000004140 cleaning Methods 0.000 claims abstract description 31
- 238000013138 pruning Methods 0.000 claims abstract description 24
- 238000010008 shearing Methods 0.000 claims abstract description 4
- 238000009966 trimming Methods 0.000 claims abstract description 4
- 239000003337 fertilizer Substances 0.000 claims description 28
- 150000001875 compounds Chemical class 0.000 claims description 20
- 239000003864 humus Substances 0.000 claims description 13
- 239000004576 sand Substances 0.000 claims description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 12
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 6
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 229910052698 phosphorus Inorganic materials 0.000 claims description 6
- 239000011574 phosphorus Substances 0.000 claims description 6
- 239000011591 potassium Substances 0.000 claims description 6
- 229910052700 potassium Inorganic materials 0.000 claims description 6
- 239000002985 plastic film Substances 0.000 claims description 3
- 229920006255 plastic film Polymers 0.000 claims description 3
- 230000001932 seasonal effect Effects 0.000 claims description 3
- 230000000116 mitigating effect Effects 0.000 claims 4
- 238000011084 recovery Methods 0.000 abstract description 16
- 230000003902 lesion Effects 0.000 abstract description 3
- 239000003854 herbicide residue Substances 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 11
- WZLMXYBCAZZIRQ-UHFFFAOYSA-N [N].[P].[K] Chemical compound [N].[P].[K] WZLMXYBCAZZIRQ-UHFFFAOYSA-N 0.000 description 9
- 238000001816 cooling Methods 0.000 description 9
- 230000001766 physiological effect Effects 0.000 description 9
- 230000001105 regulatory effect Effects 0.000 description 9
- 208000035240 Disease Resistance Diseases 0.000 description 3
- 241000934136 Verruca Species 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 235000016709 nutrition Nutrition 0.000 description 2
- 230000035764 nutrition Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 235000013619 trace mineral Nutrition 0.000 description 2
- 239000011573 trace mineral Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 241000209094 Oryza Species 0.000 description 1
- 244000044232 Oryza meyeriana Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000036244 malformation Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000002688 persistence Effects 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 239000010803 wood ash Substances 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
Classifications
-
- 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
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G13/00—Protecting plants
-
- 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
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Botany (AREA)
- Forests & Forestry (AREA)
- Ecology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Toxicology (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Cultivation Of Plants (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
Abstract
The invention provides a method for relieving phytotoxicity of a wart grain wild rice herbicide, and belongs to the technical field of wild rice cultivation. The method for relieving the phytotoxicity of the wart grain wild rice herbicide comprises the following steps: pruning the plant subjected to phytotoxicity, and shearing off the dried, diseased and damaged parts; after trimming, cleaning the leaves and rhizosphere soil with clear water, and transplanting the plant subjected to phytotoxicity into a culture medium for culture. The invention reduces the spread of lesions by pruning plants; the herbicide residue of plants and soil is reduced by cleaning the leaves and root systems; the growth environment of the plants is optimized by changing a new culture medium for culture. The invention can promote the growth of the wild rice with wart grains, which is harmed by herbicide, and shorten the recovery time.
Description
Technical Field
The invention belongs to the technical field of wild rice cultivation, and particularly relates to a method for relieving phytotoxicity of a wart grain wild rice herbicide.
Background
Wart grain wild rice (Oryza meyeriana), one of three types of wild rice specific to china, is mainly distributed in tropical regions of Yunnan and southwest. The gramineous plant forms extremely strong environment adaptability in the long-term natural selection process, and comprises a plurality of genes which are favorable for improving cultivated rice, such as disease resistance, insect resistance, drought resistance and the like. However, the conventional farmland herbicide causes serious phytotoxicity to the wart grain wild rice, which is manifested by leaf yellowing, wilting and malformation growth, and directly threatens the growth and development and population persistence of the wart grain wild rice.
Although the value of verruca sativa as a rare genetic resource is generally accepted, its high sensitivity to herbicides faces serious survival crisis. At present, the protection work of the verruca-seed wild rice, especially the rescue measures in the field environment and the germplasm resource nursery, generally lack pertinence and efficiency, and a solution which can effectively reduce herbicide injury and adapt to specific physiological requirements is urgently needed.
Disclosure of Invention
Accordingly, the invention aims to provide a method for relieving herbicide injury of the wild rice with wart grains and promoting the recovery growth of the wild rice with wart grains, which is subjected to herbicide injury.
In order to achieve the above object, the present invention provides the following technical solutions:
a method for alleviating the phytotoxicity of a wart grain wild rice herbicide comprising the steps of: pruning the plant subjected to phytotoxicity, and shearing off the dried, diseased and damaged parts; after trimming, cleaning the leaves and rhizosphere soil with clear water, and transplanting the plant subjected to phytotoxicity into a culture medium for culture.
Preferably, the amount of pruning does not exceed 20% of the total volume of the plant when pruning.
Preferably, the dried, diseased and damaged areas include leaves, shoots and root systems.
Preferably, when the blade is cleaned, the pH of the clean water is 7.0-7.5, and the water consumption is 2-3L/m based on the area of the blade 2 Cleaning for 2-3 times at intervals of 2-3h.
Preferably, when the rhizosphere soil is cleaned, the water temperature is 20-22 ℃ and the cleaning is continued for 15-25min.
Preferably, the culture medium is made of 32% -38% of red soil, 25% -35% of sand and 32% -38% of humus soil by volume fraction.
Preferably, the pH of the culture medium is 5.5-6.5, and the water content is 40% -60%.
Preferably, the culture medium is doped with 2-20g/m of compound fertilizer 3 The ratio of nitrogen, phosphorus and potassium of the compound fertilizer is 6-8:10-14:10-14.
Preferably, the cultivation is performed in a greenhouse provided with a shade and a water curtain, and the lighting conditions and the temperature in the greenhouse are adjusted according to the specific position of the greenhouse, the solar altitude, the growth condition of plants and the seasonal variation.
More preferably, the angle of the greenhouse shading shed in summer is adjusted to 25-35 degrees, and the water curtain is opened; the angle of the greenhouse shading shed is adjusted to 35-45 degrees in winter, the water curtain is closed, and the double-layer plastic film is covered.
Compared with the prior art, the invention has the following beneficial effects:
the invention provides a method for relieving phytotoxicity of a wart grain wild rice herbicide, which reduces the spread of the phytotoxicity by pruning plants; the herbicide residue of the plant and rhizosphere soil is reduced by cleaning the leaves and the root systems; the growth environment of the plant subjected to the phytotoxicity is optimized by replacing a new culture medium for culture.
The invention can promote the growth of the wild rice with wart grains, which is harmed by herbicide, and the recovery rate reaches 42-88 percent, and shortens the recovery time.
Detailed Description
The invention provides a method for relieving phytotoxicity of a wart grain wild rice herbicide, which comprises the following steps: pruning the plant subjected to phytotoxicity, and shearing off the dried, diseased and damaged parts; after trimming, cleaning the leaves and rhizosphere soil with clear water, and transplanting the plant subjected to phytotoxicity into a culture medium for culture.
When the invention is used for preferably pruning, the pruning amount is not more than 20% of the total volume of the plant, and more healthy tissues can be reserved as much as possible while the damaged part is removed, so that excessive pruning pressure on the plant is avoided, and the plant recovery is facilitated; cut off the withered, diseased and damaged parts, avoid over-pruning healthy parts, which are critical for plant recovery and photosynthesis.
The invention preferably involves the leaves, shoots and root systems at the site of desiccation, lesions and lesions.
When the invention is used for cleaning the blade, the pH value of the clean water is 7.0-7.5; the water consumption is 2-3L/m based on the leaf area 2 Further preferably 2.5L/m 2 The leaves can be effectively cleaned after 2-3 times of cleaning, and meanwhile, the waste of water resources and the extra pressure possibly suffered by plants due to excessive wetting are reduced; the interval between each washing is 2-3 hours, more preferably 2.5 hours, so that the plants have enough time to recover naturally after washing.
When the invention is used for cleaning rhizosphere soil, the water temperature is 20-22 ℃, and is further preferably 21 ℃, and the temperature can reduce the impact on the root system of the verruca grain wild rice, thereby being beneficial to protecting the health of the root system; the cleaning is continued for 15-25min, and further preferably for 20min, so as to remove chemical residues in rhizosphere soil and reduce the influence of the chemical residues on root systems.
The culture medium is preferably prepared from 32% -38% of red soil, 25% -35% of sand and 32% -38% of humus soil by volume fraction, and is further preferably prepared from 35% of red soil, 30% of sand and 35% of humus soil by volume fraction. The culture medium provided by the invention can simulate the soil structure of original soil, is favorable for keeping good air permeability and drainage property, and provides the growth conditions and necessary nutrients of the verruca sativa. Preferably, the pH of the culture medium is 5.5-6.5, which accords with the pH of the original soil of the wild rice with wart grains, and further preferably, the pH is 6.0. The wild rice with wart grains has stronger drought resistance, excessive watering should be avoided, the water content of the culture medium is preferably 40% -60%, and the water content is further preferably 50%. As an embodiment, a pH meter is used to measure and adjust the pH value of the culture medium, the soil is slightly acidic, and a proper amount of lime or wood ash is added for adjustment; and (3) soil is slightly alkaline, and sulfur is added for adjustment.
The preferred culture medium of the invention is doped with 2-20g/m of compound fertilizer 3 Further preferably 10 to 15g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the Preferably, the ratio of nitrogen, phosphorus and potassium in the compound fertilizer is 6-8:10-14:10-14, more preferably, the ratio of nitrogen, phosphorus and potassium is 7:11:12, and even more preferably, the compound fertilizer contains trace elements. The invention has no special limitation on the specific source of the compound fertilizer, and can be directly purchased through the market. The compound fertilizer is mixed into the transplanting culture medium to provide nitrogen, phosphorus, potassium and trace elements required by the growth of the wart wild rice. The collection of the wart grain wild rice is generally in a mature stage, the needed nutrition mainly promotes the maturation of seeds and improves the disease resistance, the wart grain wild rice is transported for a long time and possibly damaged at roots after being collected in the wild, the proportion of the compound fertilizer is more focused on promoting root recovery and enhancing the overall stress resistance of plants, the proportion of nitrogen, phosphorus and potassium doped into the compound fertilizer is 6-8:10-14:10-14 or 7:11:12, and the proportion is favorable for meeting the nutrition requirement of the wart grain wild rice in the mature stage, and simultaneously promoting the health and disease resistance of plants.
The invention is preferably cultured in a greenhouse, the greenhouse is provided with a shading shed and a water curtain, and the illumination condition and the temperature in the greenhouse are regulated according to the specific position of the greenhouse, the solar altitude, the growth condition of plants and the seasonal variation; further preferably, the angle of the greenhouse shading shed in summer is adjusted to 25-35 degrees, and a water curtain is opened; the angle of the greenhouse shading shed is adjusted to 35-45 degrees in winter, the water curtain is closed, and the double-layer plastic film is covered.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
A method for relieving the phytotoxicity of a wart grain wild rice herbicide comprises the following steps:
(1) Pruning: using sterilized scissors, the dry, visibly diseased or damaged severe portions of the leaves, shoots and roots were carefully cut, with each plant cut being 20% of the total volume.
(2) Cleaning the blade: the leaves were washed with slightly alkaline water (pH 7.5), the water consumption per wash being 2.5L/m per leaf area 2 The washing was repeated 3 times in total, each time at intervals of 2.5h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 20 ℃ for 15min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 35% red soil, 30% sand and 35% humus soil; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 7:11:12) compound fertilizer, and adding 18g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.0, and the moisture content of the soil is 40%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 20 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 75%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 25%.
Example 2
A method for relieving the phytotoxicity of a wart grain wild rice herbicide comprises the following steps:
(1) Pruning: using sterilized scissors, the dry, visibly diseased or damaged severe portions of the leaves, shoots and roots were carefully cut, with the amount of pruning per plant being 10% of the total volume.
(2) Cleaning the blade: the leaves were washed with clear water (pH 7.0), the water consumption per wash being 2L/m per leaf area 2 The washing was repeated 3 times in total, each time at intervals of 2h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 21 ℃ for 10min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 35% red soil, 30% sand and 35% humus soil; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 7:11:12) compound fertilizer, and adding 10g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.5, and the moisture content of the soil is 50%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 30 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 88%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 31%.
Example 3
(1) Pruning: using sterilized scissors, the dry, visibly diseased or damaged severe portions of the leaves, shoots and roots were carefully cut, with each plant cut at 15% of the total volume.
(2) Cleaning the blade: the leaves were washed with clear water (pH 7.0), the water consumption per wash being 3L/m per leaf area 2 The washing was repeated 2 times in total, each time at intervals of 3h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 22 ℃ for 20min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 38% red soil, 25% sand and 37% humus; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 6:10:14) compound fertilizer, and adding 20g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is adjusted to 5.8, and the moisture content of the soil is 60%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 28 degrees, and water curtain is used for cooling and culturing.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 42%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 9%.
Example 4
(1) Pruning: using sterilized scissors, the dry, visibly diseased or damaged severe portions of the leaves, shoots and roots were cut out, with the amount of pruning per plant being 18% of the total volume.
(2) Cleaning the blade: the leaves were washed with slightly alkaline water (pH 7.2), the water consumption per wash being 2.8L/m per leaf area 2 The washing was repeated 2 times in total, each time at intervals of 3h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 20 ℃ for 18min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 38% red soil, 25% sand and 37% humus; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 6:10:14) compound fertilizer, and adding 12g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.5, and the moisture content of the soil is 45%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 22 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 70%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 22%.
Example 5
(1) Pruning: using sterilized scissors, the dry, obviously diseased or damaged serious parts in the leaves, branches and roots are cut off, and the cutting off amount of each plant is 12% of the total volume.
(2) Cleaning the blade: the leaves were washed with clear water (pH 7.0), the water consumption per wash being 2.4L/m per leaf area 2 The washing was repeated 3 times in total, each time at intervals of 2.5h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 21.5 ℃ for 12min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 32% red soil, 35% sand and 33% humus; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 6:14:10) compound fertilizer, and adding 15g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.1, and the moisture content of the soil is 55%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 26 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 74%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 27%.
Example 6
(1) Pruning: using sterilized scissors, the dry, obviously diseased or damaged serious parts in the leaves, branches and roots are cut off, and the cutting-off amount of each plant is 17% of the total volume.
(2) Cleaning the blade: the leaves were washed with slightly alkaline water (pH 7.4), the water consumption per wash being 2.2L/m per leaf area 2 The washing was repeated 2 times in total, each time at intervals of 2.5h.
(3) Flushing root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 20.8 ℃ for 20min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 32% red soil, 35% sand and 33% humus; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 6:14:10) compound fertilizer, and adding 5g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.4, and the moisture content of the soil is 55%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 24 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 72%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 23%.
Example 7
(1) Pruning: using sterilized scissors, the dry, obviously diseased or damaged serious parts in the leaves, branches and roots are cut off, and the cutting-off amount of each plant is 15% of the total volume.
(2) Cleaning the blade: the leaves were washed with clear water (pH 7.0), the water consumption per wash being 2.5L/m per leaf area 2 The washing was repeated 3 times in total, each time at intervals of 2h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 20.5 ℃ for 15min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 35% red soil, 32% sand and 33% humus; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 8:12:10) compound fertilizerThe addition amount is 2g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.8, and the moisture content of the soil is kept at 45%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 27 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 68%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 21%.
Example 8
(1) Pruning: using sterilized scissors, the dry, obviously diseased or damaged serious parts in the leaves, branches and roots are cut off, and the cutting-off amount of each plant is 16% of the total volume.
(2) Cleaning the blade: the leaves were washed with slightly alkaline water (pH 7.5), the water consumption per wash being 2.5L/m per leaf area 2 The washing was repeated 3 times in total, each time at intervals of 3 hours.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 21 ℃ for 20min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 35% red soil, 32% sand and 33% humus; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 8:10:12) compound fertilizer, and adding 14g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.2, and the moisture content of the soil is kept at 40%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 23 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 86%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 37%.
Example 9
(1) Pruning: using sterilized scissors, the dry, obviously diseased or damaged serious parts in the leaves, branches and roots are cut off, and the cutting-off amount of each plant is 20% of the total volume.
(2) Cleaning the blade: the leaves were washed with clear water (pH 7.0), the water consumption per wash being 3L/m per leaf area 2 The washing was repeated 2 times in total, each time at intervals of 2h.
(3) Cleaning root system: the rhizosphere soil was gently rinsed with a fine stream of warm water at 20 ℃ for 10min.
(4) Transplanting: transplanting the plants into a new culture medium, wherein the culture medium comprises 36% red soil, 30% sand and 34% humus soil; applying NPK fertilizer (nitrogen-phosphorus-potassium ratio is 7:12:11) compound fertilizer, and adding 20g/m 3 The method comprises the steps of carrying out a first treatment on the surface of the The pH value of the soil is regulated to 6.6, and the moisture content of the soil is kept at 40%.
(5) Greenhouse management: in the greenhouse, the angle of the shading shed is adjusted to 25 degrees, and water curtain is used for cooling cultivation.
Test results: the growth recovery rate of the wart grain wild rice which is damaged by herbicide is 55%, and the time for recovering the basic physiological activity in a greenhouse is shortened by 16%.
The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (10)
1. A method for alleviating the phytotoxicity of a wart grain wild rice herbicide, comprising the steps of: pruning the plant subjected to phytotoxicity, and shearing off the dried, diseased and damaged parts; after trimming, cleaning the leaves and rhizosphere soil with clear water, and transplanting the plant subjected to phytotoxicity into a culture medium for culture.
2. The method of mitigating against phytotoxicity of a wart grain wild rice herbicide of claim 1, wherein said pruning is performed in an amount not exceeding 20% of the total volume of the plant.
3. The method of alleviating the phytotoxicity of a wart grain wild rice herbicide of claim 1 wherein said dried, diseased and damaged areas comprise leaves, shoots and root systems.
4. The method of alleviating the phytotoxicity of a wart granule wild rice herbicide of claim 1, wherein said method comprisesWhen the blade is cleaned, the pH value of the clean water is 7.0-7.5, and the water consumption is 2-3L/m according to the area of the blade 2 Cleaning for 2-3 times at intervals of 2-3h.
5. The method for alleviating the phytotoxicity of a wart grain wild rice herbicide of claim 1, wherein said cleaning is carried out for 15-25 minutes at a water temperature of 20-22 ℃.
6. The method of mitigating the phytotoxicity of wart grain wild rice herbicide of claim 1, wherein said culture medium is made up of 32% -38% red soil, 25% -35% sand and 32% -38% humus soil by volume fraction.
7. The method for mitigating against phytotoxicity of wart grain wild rice herbicide of claim 1 or 6, wherein said culture medium has a ph of 5.5-6.5 and a water content of 40% -60%.
8. The method for alleviating the phytotoxicity of wart grain wild rice herbicide of claim 1 or 6, wherein said culture medium is incorporated with a compound fertilizer of 2-20g/m 3 The ratio of nitrogen, phosphorus and potassium of the compound fertilizer is 6-8:10-14:10-14.
9. The method for alleviating the phytotoxicity of wart grain wild rice herbicide according to claim 1, wherein said cultivation is carried out in a greenhouse provided with a shade and a water curtain, and the lighting conditions and temperature in the greenhouse are adjusted according to the specific location of the greenhouse, the solar altitude, the growth condition of plants and the seasonal variation.
10. The method for mitigating against phytotoxicity of wart grain wild rice herbicide of claim 9, wherein the angle of the greenhouse shade is adjusted to 25 ° -35 ° in summer, and the water curtain is opened; the angle of the greenhouse shading shed is adjusted to 35-45 degrees in winter, the water curtain is closed, and the double-layer plastic film is covered.
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