CN103814779B - A kind of Synthetical prevention technology of corn waterlogging disaster - Google Patents
A kind of Synthetical prevention technology of corn waterlogging disaster Download PDFInfo
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Abstract
The invention discloses a kind of Synthetical prevention technology of corn waterlogging disaster, utilize soil ridging or the regulation and control of ridge, railway carriage or compartment: the wide-and narrow-row sowing when corn seeding, the corn 5 leaf phase carries out cultivation and banking ridging or trench digging, ditch in the loose row of corn, at corn narrow row ridging ridging, or every 4 row or 6 behavior one railway carriage or compartments, trench digging in the wide row in both sides, railway carriage or compartment, after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, carry out foliage-spray spermidine chemical regulator simultaneously, in each spray sooner or later 1 time, spray 2 ~ 3 days continuously, other is the same with normal management, treat that corn ear all occurs that bract dries up, seed milk-line disappears, gather in the crops when black layer appearance and the complete physiological ripening of seed.The present invention with its prevent in advance with calamity after the comprehensive pre-control advantage remedied can effectively reduce and slow down waterlogging back root part anoxic, reduce the toxic effect of soil harmful substance accumulation, strengthen root growth and absorbing capacity, thus promote overground part and root system symplastic growth, improve output.
Description
Technical field
The present invention relates to a kind of agronomy and change control and organically combine the Synthetical prevention administrative skill controlling the harm of corn waterlogging, belong to agriculture field.
Background technology
Along with Global climate change, waterlogging, having become second largest disaster in China's Natural Disasters of Agricultural, accounts for about 24.2%, and waterlogging harm causes crop yield loss to be global problem.According to statistics, the arable land in the whole world about 10% suffers wet damage caused by waterlogging evil, and cause crop failure 20%, the irrigated land of about 50% is subject to the impact of impeded drainage.Due to regionality, sudden and unpredictability that waterlogging disaster occurs, the hazard ratio arid of waterlogging is larger to the threat of agricultural production.Since the nineties in 20th century, the trend that flood scope expands year by year, occurrence frequency improves constantly, according to statistics, China in 1998 has 28 provincial districts and suffers flood, and crops disaster area reaches 2,544 ten thousand hm
2, Disaster Area reaches 1,599 ten thousand hm
2, direct economic loss 2,642 hundred million yuan.2003 there is again great flood in Basin of Huaihe River, according to Jiangsu, Anhui, Henan San Sheng disaster-stricken crops more than 520 ten thousand hm
2, total crop failure 1,200,000 hm
2.Corn is the first cereal crops of China, and it produces the sustainable development close relation with China's grain security and society.But cause to production estimation and output in China main maize area due to the distribution inequality of rainfall in the last few years to have a strong impact on, especially at the Huang-Huai-Hai plain of China and the loose river Liaohe River Basin in northeast, the concentrated rainfall in 7-9 month causes to the growth of corn and yield composition and has a strong impact on, light then cause corn underproduction amplitude 15-30%, the serious time can up to more than 40%, even subregion total crop failure, harmful having become of waterlogging has a strong impact on one of corn stable yields and yielding ability key factor.
The originally injury of corn damage or crop failure caused by waterlogging is excess moisture, next causes a series ofly secondaryly to coerce disaster, as anoxic is coerced and the poisonous and hazardous ionic stress of soil etc., cause soil solid, liquid, gas three-phase is lacked of proper care, poisonous and harmful substance accumulates, cause root system anaerobic environment, aerobic respiration difficulty, moisture and absorption of nutrient ingredients are obstructed, therefore the kind that selection and popularization is waterlogging alleviates one of important measure of waterlogging disaster at present, but because of Different Crop kind, growthdevelopmental stage, soil types and time and different, as the sensitive periods that the corn 4 leaf phase is waterlogging, when before corn 7 leaf, soil moisture is more than more than 90%, corn is with regard to depauperation, during corn seedling, continue just to there will be damage or crop failure caused by waterlogging symptom in more than 3 days, in Huang-Huai-Hai corn producing region, bud flood phenomenon is very easily there is in Summer Maize in the time early in rainy season.Waterflooding 1d is very micro-to Yield of Corn, the above underproduction rate more than 40% of waterflooding 3d, and shooting stage waterflooding 5-7d, tasseling stage waterflooding 7d summer corn has no harvest substantially.After corn waterflooding 15d, a large amount of adventive root of hyperplasia, root district cytoclasis becomes aerenchyma, have a strong impact on the growth of root, organelle-vacuole in blade and chloroplast membranes structural deterioration, finally cause blade cell death and affect dry-matter accumulation, and corn is different with the flower sensitivity of grain phase to waterflooding in seedling stage, fringe phase, wherein seedling stage is the most responsive, the output range of decrease can arrive 19-27%, is secondly the fringe phase, and the range of decrease is 14.1-19.1%, it is minimum that the flower grain phase reduces amplitude, and the range of decrease is 9.5-11.6%.A large number of experiments show that, flood occurs early heavy on the impact of corn ultimate output, and after flood, field ponding is discharged more early, then corn underproduction amplitude is less.Although select kind can to a certain degree mitigation, but often can not prevent in advance or effective disaster mitigation degree after occurring, although research shows Increasing N fertilizer in the past, damage or crop failure caused by waterlogging in seedling stage can be alleviated, obvious improvement growth, but can only to intervene after calamity and remission effect is very limited, therefore how can take measures in advance prevent and alleviate damage or crop failure caused by waterlogging, and how to take the complex art such as soil and chemical regulation to resist and control of maize waterlogging disaster, alleviate production loss then to seem most important key, but this series of problems still lacks system research.Therefore carry out the comprehensive research that agronomy and chemical regulation combine further, become waterlogging disaster problem demanding prompt solution in China's Maize Production.Since 2009, we start the Ecological and Physiological Effect research of the resistance to waterlogging of corn, find to be regulated to core with soil, the corn yield that can effectively prevent and alleviate waterlogging disaster to cause in conjunction with agronomy and chemical regulation measure declines to a great extent, this is not only conducive to Ensuring Food Safety and produces, and being conducive to the sustainable development of agricultural, this is significant to the grain security and social development that ensure country undoubtedly.
Summary of the invention
Technical problem to be solved by this invention is for Yi Lao district this production practical problem of corn waterlogging disaster, provide a kind of quantification Comprehensive Control Technology being core with soil and chemical regulation to control the harm of corn waterlogging, to realize the stable high yield of corn and to reduce damage by disease and insect incidence and production loss.
For solving the problems of the technologies described above, the present invention by the following technical solutions: the Control Technology of corn waterlogging disaster of the present invention, comprises following content:
The Synthetical prevention technology of corn waterlogging disaster of the present invention, comprises the following steps:
(1) soil ridging or the regulation and control of ridge, railway carriage or compartment: the wide-and narrow-row sowing when corn seeding, wide line space 70 ~ 80cm, narrow row spacing 40 ~ 50cm, the corn 5 leaf phase carries out cultivation and banking ridging or trench digging, ditch in the loose row of corn, at corn narrow row ridging ridging, the high 15 ~ 20cm in ridge, 25 ~ 30cm, row spacing 50 ~ 60cm at the bottom of furrow; Or every 4 row or 6 behavior one railway carriage or compartments, trench digging in the wide row in both sides, railway carriage or compartment, ditch depth 20 ~ 25cm, wide 30 ~ 35cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, fertile in standard with purity nitrogen, fertilizing amount is 3 ~ 6 kgs/acre, carry out foliage-spray spermidine chemical regulator simultaneously, concentration is 0.5 ~ 1mmol/L, in each spray sooner or later 1 time, sprays 2 ~ 3 days continuously;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed.
In described step (2), nitrogen oxygen mixed fertilizers is the fertile weight ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1.
Described oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%.
Beneficial effect of the present invention: the present invention adopts the soil control methods on ridging or ridge, railway carriage or compartment, can eliminate in advance or reduce waterlogging disaster, because root system can be avoided or alleviate after waterlogging in the immersion of water layer in soil ridge culture or ridge, railway carriage or compartment, unnecessary moisture is made to discharge along furrow or to be stored in furrow, add the gas content of corn root, eliminate or reduce the secondary anoxic injury that waterlogging produces root system.Simultaneously owing to decreasing moisture to the immersion of rhizosphere soil and soak time, also mitigating reducing substances in soil increases, and reduces the toxic action that it causes crop root.Ridging and ridge, railway carriage or compartment add maize root system active soil stratum thickness in addition, and make the thickness of plough horizon increase more than 35cm, soil fertility increases greatly, expand root absorbing area, add root dry weight and improving activity of root system, strengthen the resistance of crop, effectively delayed later stage Senescence of Root System.
The remedial measure that the present invention adopts quantitative chemical regulation and control and agronomy to combine after damage or crop failure caused by waterlogging occurs effectively can alleviate waterlogging harm, first be that oxygenation fertilizer can discharge and increase oxygen in soil content, alleviate the anoxia phenomenon after waterlogging, thus the injury that minimizing anaerobic respiration causes; Next is by lift-augmented mechanism and foliage-spray spermidine, the loss of root growth layer available nutrient that can cause after the injury of effective compensation waterlogging and shortage, regulation and control Corn internal hormone metabolic balance, slow down the rapid senescence process of maize leaf, the photosynthetic capacity of remarkable enhancing overground part leaf colour and blade, slows down Senescence of Root System, strengthens root growth and absorbing capacity, thus promote overground part and root system symplastic growth, improve output.The present invention with its prevent in advance with calamity after the comprehensive pre-control advantage remedied can effectively reduce and slow down waterlogging back root part anoxic, reduce the toxic effect of soil harmful substance accumulation, strengthen root growth layer soil fertility and coordination and improve the superiority such as maize root system and overground part grow, in addition there is stronger operability, its outstanding advantage will be played after the summer corn district of easily flood is implemented and applies, obtain significant ecology, economic and social benefit.
Accompanying drawing explanation
Fig. 1 be in embodiment 6 corn silking phase different measure on the impact of Estimating Leaf Area In Maize under flooding stress.
Fig. 2 be in embodiment 6 corn silking phase different measure on the impact of flooding stress inferior lobe colour.
Fig. 3 be in embodiment 6 corn silking phase different measure on the impact of corn dry matter under flooding stress.
Fig. 4 be in embodiment 6 corn silking phase different measure on the impact of corn yield under flooding stress.
Fig. 5 be in embodiment 7 corn shooting stage different measure on the impact of Estimating Leaf Area In Maize under flooding stress.
Fig. 6 be in embodiment 7 corn shooting stage different measure on the impact of maize leaves colour under flooding stress.
Fig. 7 be in embodiment 7 corn shooting stage different measure on the impact of Corn Biomass Yield under flooding stress.
Fig. 8 be in embodiment 7 corn shooting stage different measure on the impact of maize economy output under flooding stress.
Embodiment
Embodiment 1
The Control Technology of the corn waterlogging disaster of the present embodiment, step is as follows:
(1) soil ridging or the regulation and control of ridge, railway carriage or compartment: the wide-and narrow-row sowing when corn seeding, wide line space 70 ~ 80cm, narrow row spacing 40 ~ 50cm, the corn 5 leaf phase carries out cultivation and banking ridging or trench digging, ditch in the loose row of corn, to have earthed up the large ridge of duplicate rows in corn narrow row, the high 15 ~ 20cm in ridge, 25 ~ 30cm, row spacing 50 ~ 60cm at the bottom of furrow; Or every 4 row or 6 behavior one railway carriage or compartments, trench digging in the wide row in both sides, railway carriage or compartment, ditch depth 20 ~ 25cm, wide 30 ~ 35cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, nitrogen oxygen mixed fertilizers is the fertile mass ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1, oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%, and fertile in standard with purity nitrogen, fertilizing amount is 3 ~ 6 kgs/acre, carry out foliage-spray spermidine chemical regulator simultaneously, concentration is 0.5 ~ 1mmol/L, in each spray sooner or later 1 time, sprays 2 ~ 3 days continuously;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed.
Embodiment 2
The Control Technology of the corn waterlogging disaster of the present embodiment, step is as follows:
(1) soil ridging: the wide-and narrow-row sowing when corn seeding, wide line space 70cm, narrow row spacing 40cm, the corn 5 leaf phase carries out cultivation and banking ridging or trench digging, ditches in the loose row of corn, to have earthed up the large ridge of duplicate rows in corn narrow row, ridge height 15cm, 25cm at the bottom of the rise furrow of ridge, row spacing 50cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, nitrogen oxygen mixed fertilizers is the fertile mass ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1, wherein instant nitrogenousfertilizer 4 kgs/acre, fertile 2 kgs/acre of oxygenation, wherein oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%, carry out foliage-spray spermidine chemical regulator simultaneously, concentration is 0.5mmol/L, in each spray sooner or later 1 time, sprays 3 days continuously;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed.
Embodiment 3
The Control Technology of the corn waterlogging disaster of the present embodiment, step is as follows:
(1) soil ridging: the wide-and narrow-row sowing when corn seeding, wide line space 80cm, narrow row spacing 50cm, the corn 5 leaf phase carries out cultivation and banking ridging or trench digging, ditches in the loose row of corn, to have earthed up the large ridge of duplicate rows in corn narrow row, ridge height 20cm, 30cm at the bottom of the rise furrow of ridge, row spacing 60cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, nitrogen oxygen mixed fertilizers is the fertile mass ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1, wherein instant nitrogenousfertilizer 3 kgs/acre, fertile 1.5 kgs/acre of oxygenation, wherein oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%, carry out foliage-spray spermidine chemical regulator simultaneously, concentration is 1mmol/L, in each spray sooner or later 1 time, sprays 2 days continuously;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed.
Embodiment 4
The Control Technology of the corn waterlogging disaster of the present embodiment, step is as follows:
(1) ridge, soil railway carriage or compartment regulation and control: the wide-and narrow-row sowing when corn seeding, wide line space 75cm, narrow row spacing 45cm, the corn 5 leaf phase carries out the regulation and control of ridge, railway carriage or compartment, every 4 behavior one railway carriage or compartments, trench digging in the wide row in both sides, railway carriage or compartment, ditch depth 20cm, wide 30cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, nitrogen oxygen mixed fertilizers is the fertile mass ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1, wherein instant nitrogenousfertilizer 5 kgs/acre, fertile 2.5 kgs/acre of oxygenation, wherein oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%, carry out foliage-spray spermidine chemical regulator simultaneously, concentration is 0.8mmol/L, in each spray sooner or later 1 time, sprays 3 days continuously;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed.
Embodiment 5
The Control Technology of the corn waterlogging disaster of the present embodiment, step is as follows:
(1) ridge, soil railway carriage or compartment regulation and control: the wide-and narrow-row sowing when corn seeding, wide line space 75cm, narrow row spacing 45cm, the corn 5 leaf phase carries out the regulation and control of ridge, railway carriage or compartment, every 6 behavior one railway carriage or compartments, trench digging in the wide row in both sides, railway carriage or compartment, ditch depth 25cm, wide 35cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, nitrogen oxygen mixed fertilizers is the fertile mass ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1, wherein instant nitrogenousfertilizer 4 kgs/acre, fertile 2 kgs/acre of oxygenation, wherein oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%, carry out foliage-spray spermidine chemical regulator simultaneously, concentration is 1mmol/L, in each spray sooner or later 1 time, sprays 2 days continuously;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed.
Embodiment 6
Adopt method of the present invention to carry out the small plot experiment of continuous 2 years (2011 and 2012) in certain proving ground, adopt Artificial flooding test, carry out submerging treatment in the corn silking phase, 7 process are set: (1) contrast CK1: not waterflooding; (2) CK2: waterflooding; (3) T1: ridge culture+waterflooding; (4) T2: waterflooding+enrich oxygen fertilizer+spray polyamines (carbamide peroxide mix to join with urea 1:2 execute); (5) T3: waterflooding+lift-augmented mechanism; (6) T4: waterflooding+the present invention; (7) T5: railway carriage or compartment ridge+waterflooding.Carry out the beneficial effects such as leaf area, chlorophyll and yield and its component to investigate and analyse above-mentioned process.The results are shown in Figure 1 and Fig. 2, take ridge, railway carriage or compartment or ridge culture, lift-augmented mechanism, spray polyamines and the present invention all can promote that cauline leaf grows, increase later stage greenery area index, wherein the present invention's 30 days and maturing stage increase by 21.8% and 33.9% average than waterflooding contrast after weaving silk, chlorophyll content in leaf blades improves 2.6% and 24.8%, effectively delay anaphase blade aging, add later stage amount of dry matter, maturing stage the present invention joins than waterflooding contrast, ridge culture, oxygenation fertilizer and executes polyamines and lift-augmented mechanism amount of dry matter adds 16.6%, 15.1%, 12.3% and 16.5% respectively; Because the ample supply of material is long because this reducing the bald point of fruit ear, corn 100-grain weight improves, significantly increase corn yield, wherein seed 100-grain weight of the present invention is joined than ridge culture, lift-augmented mechanism and oxygenation fertilizer and is executed polyamines and improve 7.2%, 10.7%, 4.2% and 5.4% respectively, and corn yield show as the present invention than waterflooding contrast, ridge culture, enrich oxygen fertilizer, lift-augmented mechanism and ridge, railway carriage or compartment 20.7%, 33.2%, 12.7%, 8.1% and 20.6%, its output also contrasts a little more than not waterflooding.Visible the present invention is alleviated disaster and to be coerced and to improve corn yield effect more excellent.
Embodiment 7
The present invention and additive method contrast is adopted to carry out field experiment in certain proving ground, the processing area 333.3m of each method
2employing Artificial flooding is tested, and carries out submerging treatment in the corn shooting stage, arranges (1) CK1: not waterflooding; (2) CK2: waterflooding; (3) T1: ridge culture+waterflooding; (4) T2: waterflooding+enrich oxygen fertilizer+spray polyamines; (5) T3: waterflooding+lift-augmented mechanism; (6) T4: waterflooding+the present invention, (7) T5: railway carriage or compartment ridge+waterflooding.Investigate the beneficial effects such as the leaf area of each process, chlorophyll, dry-matter accumulation and output respectively to investigate and analyse.Result as shown in Figure 3 and Figure 4, take ridge culture, lift-augmented mechanism, oxygenation fertilizer joins and execute polyamines and the present invention and all can promote corn stem leaf growth after waterflooding, improve leaf colour and increase later stage greenery area, slowing down the leaf senile under adverse circumstance, but different disposal measure is all optimum with effect of the present invention.Wherein ridge culture in 20 days after jointing, lift-augmented mechanism, oxygenation fertilizer are joined and are executed polyamines and the present invention is average respectively than waterflooding contrast leaf area increases by 14.5%, 8.5%, 6.8% and 10.0%, leaf colour also comparatively waterflooding contrast slightly increase.After invention not only improves waterflooding, corn grows, also improve photosynthetic matter accumulation amount and the output of corn, wherein dry-matter accumulation show as the present invention than ridge culture, enrich the fertile polyamines of oxygen, lift-augmented mechanism and waterflooding contrast high by 5.1%, 12.3%, 16.5%, 18.6%, economic flow rate increasing degree is 4.3%, 10.1%, 12.0% and 21.2% respectively, still alleviates disaster with the present invention and coerce and improve corn yield best results in the various measures that this experiment adopts as seen.
Embodiment 8
Method of the present invention is adopted to carry out field comparative's test in low-lying district:
Experimental group: after harvesting wheat before corn non-tillage seeding, the kind of resistance to waterlogging is selected to dredge single 20, planting density 4000 plants/acre, wide-narrow row planting, wide row 80cm, narrow row 40cm, the corn 5 leaf phase carries out cultivation and banking and plays the large ridge of duplicate rows, ridge height 20cm(is at the bottom of furrow), row spacing 50cm, joins for every mu and executes purity nitrogen 25 kilograms, wherein execute N fertile 7kg/ mu seedling stage, the typhon mouth phase executes purity nitrogen 18kg/ mu, when taking agronomy of the present invention and chemical regulation measure to process in time after the ponding waterlogging of field, gathers in the crops after corn full maturity.
Control group: after harvesting wheat before corn non-tillage seeding, selects the kind of resistance to waterlogging to dredge single 20, waits line-spacing to plant, planting density 4000 plants/acre, joins for every mu and executes purity nitrogen 25 kilograms, wherein executes N fertile 7kg/ mu seedling stage, the typhon mouth phase executes purity nitrogen 18kg/ mu, gathers in the crops after corn full maturity.
Result shows, under planting type of the present invention, yield of Summer Corn the Characters is better.Compared with the control, grain number per spike increases by 5.6% to some extent, and the bald point of summer corn is long to shorten, and thousand kernel weight improves 4.5%, and actual production of the present invention increases by 9.2% than control group.
Claims (2)
1. a Synthetical prevention technology for corn waterlogging disaster, is characterized in that comprising the following steps:
(1) soil ridging or the regulation and control of ridge, railway carriage or compartment: the wide-and narrow-row sowing when corn seeding, wide line space 70 ~ 80cm, narrow row spacing 40 ~ 50cm, the corn 5 leaf phase carries out cultivation and banking ridging or trench digging, ditch in the loose row of corn, at corn narrow row ridging ridging, the high 15 ~ 20cm in ridge, 25 ~ 30cm at the bottom of the rise furrow of ridge, row spacing 50 ~ 60cm; Or every 4 row or 6 behavior one railway carriage or compartments, trench digging in the wide row in both sides, railway carriage or compartment, ditch depth 20 ~ 25cm, wide 30 ~ 35cm;
(2) quantitative chemical regulation and control and agronomic measures: after corn damage or crop failure caused by waterlogging occurs, enrich nitrogen oxygen mixed fertilizers immediately, fertile in standard metering with purity nitrogen, every mu increases fertilizing amount containing purity nitrogen 3 ~ 6 kilograms, carry out foliage-spray spermidine chemical regulator, concentration is 0.5 ~ 1mmol/L simultaneously, in each spray sooner or later 1 time, spray 2 ~ 3 days continuously, other is the same with normal management;
(3) harvest in proper late: treat that corn ear all occurs that bract dries up, seed milk-line disappears, and gathers in the crops when black layer appearance and the complete physiological ripening of seed;
In described step (2), nitrogen oxygen mixed fertilizers is the fertile weight ratio of instant nitrogenousfertilizer and oxygenation is the mixed fertilizers of 2:1.
2. the Synthetical prevention technology of corn waterlogging disaster according to claim 1, is characterized in that: described oxygenation fertilizer is the fertilizer containing available nitrogen 30% and active oxygen 16.5%.
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| CN105103852A (en) * | 2015-08-03 | 2015-12-02 | 丹东农业科学院 | Four-row to one-blank sparse-dense dense-sparse planting method for corn |
| CN105594474B (en) * | 2015-12-22 | 2018-02-27 | 长江大学 | A kind of Dry crop wet injury identification apparatus and its authentication method |
| CN105527385A (en) * | 2016-01-20 | 2016-04-27 | 北京市园林科学研究院 | Plant water submerging test facility and construction method |
| CN106034633A (en) * | 2016-05-31 | 2016-10-26 | 山东农业大学 | Corn planting method based on fertilizer applying treatment and capable of effectively adjusting and controlling waterlogging stress |
| CN105961004A (en) * | 2016-05-31 | 2016-09-28 | 山东农业大学 | Corn planting method for effectively controlling water logging stress |
| CN106146174A (en) * | 2016-08-10 | 2016-11-23 | 安徽省陆虎生物科技有限公司 | A kind of oxygen supplement coated fertilizer overcoming production continuous cropping obstacle |
| CN106818258A (en) * | 2016-12-15 | 2017-06-13 | 长江大学 | A kind of method for improving Resistance Strain of Cotton water logging stress |
| CN109511657B (en) * | 2018-11-22 | 2021-01-15 | 内蒙古农业大学 | Method for improving corn yield |
| CN110063223A (en) * | 2019-05-29 | 2019-07-30 | 福建省农业科学院果树研究所 | A method of so that dragon fruit is caused weak plant rejuvenation because of waterlogging |
| CN110317819A (en) * | 2019-07-16 | 2019-10-11 | 北京林业大学 | SPDS1 gene order, application and the method for regulating and controlling plant leaf blade ageing process |
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