CN101491190B - Flax chemical emasculation bloom-control lodging-prevention cultivation method - Google Patents
Flax chemical emasculation bloom-control lodging-prevention cultivation method Download PDFInfo
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- CN101491190B CN101491190B CN2009100427190A CN200910042719A CN101491190B CN 101491190 B CN101491190 B CN 101491190B CN 2009100427190 A CN2009100427190 A CN 2009100427190A CN 200910042719 A CN200910042719 A CN 200910042719A CN 101491190 B CN101491190 B CN 101491190B
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Abstract
The invention relates to flax culture technology, in particular to a chemical emasculation anti-lodging culture method for the flax in the later breeding stage. According to the method, a chemical male sterilant is sprayed from the flax budding stage to the flowering state so as to make the flax blossom unfruitfully or seldom fruitfully; and the lodging of the flax plant is avoided by the reduction of the flax plant tip weight and the lowering of the flax plant gravity center. The flax stem grows with nutrition and the bast fibers develop through the reduction of the nutrient consumption by the flowering and fruition of the flax. The method can effectively reduce the lodging rate of the flax and the lodging degree of the flax. The method is obviously characterized by stable output, high quality and high efficiency.
Description
Technical field
The present invention relates to a kind of flax growing technology, particularly a kind of flax chemical emasculation bloom-control lodging-prevention cultivation method.
Background technology
Lodging is a ubiquitous problem in the crop production, and it not only causes the serious underproduction of crops, and its product quality is also had very big influence.Carried out big quantity research crops such as paddy rice, rape, corn, wheats aspect resistant to lodging both at home and abroad, kind, the improvement culture technique mainly taking to select lodging tolerance strong (are avoided rainy season the sowing time of adjusting crop, reduce planting density to increase the field permeability, control nitrogen fertilizer application and enrich phosphorus potassium to increase the cane lodging tolerance, use uniconazole P etc. and reduce plant height) wait measure, the lodging tolerance of enhancing stem stalk.
Linum high density crop, the very thin easy lodging of straw, lodging in flakes takes place in late growth stage high temperature and rainy easily, cause large tracts of land to macerate stalk and mildew and rot, reduce former stem output greatly, increase the difficulty in former stem results, airing and the keeping, reduce flax straw output, fiber quality and planting benefit.Both at home and abroad for solving flax lodging problem, proposed to select for use and resisted to fall technical measures such as kind, control numb plant height degree (using uniconazole P etc.), reduction planting density, minimizing nitrogen fertilizer amount, suitable results ahead of time, but these lodging-prevention measures are cost to reduce output mostly, and the lodging-prevention effect is very limited.
It is one of important measures of its heterosis utilization that crop chemistry kills hero, and it is meant that in the crop pollen growth course the efficient male sterilant of using doses makes the method for its pollen abortion.Crop chemistry kills hero and has characteristics such as method is simple, with low cost, combination selection convenient, effect of increasing production is obvious, has been widely used in crop heterosis such as paddy rice, wheat, rape, cotton, bluish dogbane and has utilized the field.
Take a broad view of domestic and international existing crop chemistry and kill male technology, purpose is to utilize the hybridization combination to utilize hybrid vigour, improve crop yield and improve product quality, and it is applied to the crop blank of genus still resistant to lodging.Flax late growth stage is based on reproductive growth, photosynthetic product mainly is transported to branch, flower and fruit, and along with flowers and fruits weight constantly increases, numb strain center of gravity is moved on gradually, cause stem stalk lodging tolerance to decline to a great extent, just lodging in various degree can occur as strong wind, rainstorm weather.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, a kind of flax chemical emasculation bloom-control lodging-prevention cultivation method is provided, promptly use the male sterilant of doses at flax bud stage, it is shaky or seldom solid that it is bloomed, and alleviates numb strain top weight, reduces numb strain and height of C.G. thereof, strengthen the lodging tolerance of numb strain, reduce the nutrient consumption that flex seed is grown simultaneously, promote phloem fiber to grow, reach the purpose that improves output and improvement fiber quality.
Technical scheme of the present invention is: a kind of flax chemical emasculation bloom-control lodging-prevention cultivation method, it is to use male sterilant at the pregnant flower bud of flax phase to initial bloom stage, make flax pollen abortion and bloom shaky, to alleviate numb strain taper weight, reduce numb strain center of gravity, prevent flax lodging.
Male gametocide is that (chemistry tafapon by name, molecular formula is CH to the dalapon aqueous solution
3CCl
2COONa), the male gametocide application concentration is: the content of dalapon pulvis is 0.050%～0.150% in the dalapon aqueous solution.
The preferred application concentration of male gametocide is: the content of dalapon pulvis is 0.075%～0.125% in the dalapon aqueous solution.
Male gametocide solution usage: 650～750kg/hm
2
The male gametocide time of application: for the first time time of application be the pregnant flower bud phase to initial bloom stage, preferred squaring period.
Male gametocide method of application: need use 2-3 time, spray 5-7 days at interval at every turn.
The present invention is that (numb strain is blossomed and beared fruit and caused moving on sharp increase of taper weight and the center of gravity according to the root of flax late growth stage lodging, capacity for the resistance to lodging progressively descends) and the lodging-prevention new cultivation technology of proposition, compare with traditional lodging-prevention culture technique, the present invention has following characteristics: the one, be not subjected to the restriction of flax kind, and all kinds all can take the chemical emasculation method to prevent lodging; The 2nd, be not subjected to flax influence in vegetative period, needn't sow ahead of time or ahead of time results avoid rainy season, can guarantee the time that flax normal growth is grown; The 3rd, be not subjected to the influence of flax seeding quantity, needn't improve the field permeability by reducing planting density, can guarantee the needed basic seedling amount of flax high yield; The 4th, be not subjected to the influence of flax amount of application of nitrogen fertilizer, can satisfy the nitrogen nutrition demand of flax, help improving output; The 5th, be not subjected to the influence of numb strain technology length, can not occur being similar to and use uniconazole P etc. and cause numb plant height degree and technology length thereof to shorten and the problem of the underproduction.
Below in conjunction with embodiment detailed content of the present invention is further described.
Embodiment
Embodiment 1
A kind of flax chemical emasculation bloom-control lodging-prevention cultivation method, it comprises:
Chemical emasculation for the first time: select fine day to use dalapon (tafapon) in the pregnant flower bud of flax phase (grow mid-term fast, the numb strain growing point in field 50% is sagging), by the preparation of 0.10% aqueous solution, soup consumption 750kg/hm
2, evenly spray with sprayer.
Chemical emasculation for the second time: after spraying male gametocide for the first time, finished in 7 days, for the second time the method for chemical emasculation and require identical with the first time.
Chemical emasculation for the third time: spray male gametocide after 7 days for the second time, not blooming if any the numb strain stem 50% or more in the field, need carry out chemical emasculation for the third time, and the method for chemical emasculation and requirement are identical with the first time for the third time.
After measured, adopt flax of the inventive method cultivation, lodging rate reduces about 40%, and it is nearly 10% that former stem output increases, and fiber quality makes moderate progress.
Embodiment 2
A kind of flax chemical emasculation bloom-control lodging-prevention cultivation method, it comprises:
Chemical emasculation for the first time: select fine day to use dalapon in flax squaring period (the numb strain stem in field 50% is buddingged), by the preparation of 0.150% aqueous solution, soup consumption 650kg/hm
2, evenly spray with sprayer.
Chemical emasculation for the second time: after spraying male gametocide for the first time, finished in 5 days.The method of chemical emasculation is identical with the first time with requirement for the second time.
Chemical emasculation for the third time: spray male gametocide after 5 days for the second time, not blooming if any the numb strain stem 50% or more in the field, need carry out chemical emasculation for the third time, and the method for chemical emasculation and requirement are identical with the first time for the third time.
After measured, adopt flax of the inventive method cultivation, lodging rate reduces about 70%, and former stem output significantly improves more than 10%, and fiber quality obviously improves.
Embodiment 3
A kind of flax chemical emasculation bloom-control lodging-prevention cultivation method, it comprises:
Chemical emasculation for the first time: flax initial bloom stage (the numb strain stem in field 10% is bloomed), select fine day to use dalapon (tafapon), by the preparation of 0.050% aqueous solution, soup consumption 750kg/hm
2, evenly spray with sprayer.
Chemical emasculation for the second time: after spraying male gametocide for the first time, finished in 6 days.The method of chemical emasculation is identical with the first time with requirement for the second time.
Because of spraying for the second time male gametocide stem numb strain less than 50% of not blooming in field after 6 days, so need not to spray for the third time male gametocide.
After measured, adopt flax of the inventive method cultivation, lodging rate reduces about 40%, and former stem output improves near 10%, and fiber quality makes moderate progress.
Claims (5)
1. flax chemical emasculation bloom-control lodging-prevention cultivation method, it is characterized in that: give birth to the pregnant flower bud phase to flowering stage in flax, use male sterilant and make flax pollen abortion, it is shaky or seldom solid to cause flax to bloom, reduce its center of gravity by alleviating numb strain taper weight, reduce the nutrient consumption that flax blossoms and bears fruit, promote straw to nourish and grow, strengthen flax capacity for the resistance to lodging, described male sterilant is the dalapon aqueous solution, and the content of dalapon pulvis is 0.050%～0.150% in the dalapon aqueous solution.
2. flax chemical emasculation bloom-control lodging-prevention cultivation method according to claim 1, it is characterized in that spraying dalapon aqueous solution 2-3 time, the time that sprays carries out at pregnant flower bud phase to initial bloom stage for the first time, the time that sprays for the second time sprays the back for the first time at it and carried out in 5-7 days, after for the second time spraying 5-7 days, the field need not spray when blooming if any the numb strain stem more than 50% for the third time, and the time that sprays for the third time sprays the back in the second time and carried out in 5-7 days.
3. flax chemical emasculation bloom-control lodging-prevention cultivation method according to claim 2 is characterized in that the time of spraying is squaring period to the dalapon aqueous solution for the first time.
4. flax chemical emasculation bloom-control lodging-prevention cultivation method according to claim 3, it is characterized in that the male gametocide application concentration is: the content of dalapon pulvis is 0.075%～0.125% in the dalapon aqueous solution.
5. according to arbitrary described flax chemical emasculation bloom-control lodging-prevention cultivation method in the claim 1 to 4, it is characterized in that the dalapon amount of aqueous solution used is 650～750kg/hm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100427190A CN101491190B (en) | 2009-02-24 | 2009-02-24 | Flax chemical emasculation bloom-control lodging-prevention cultivation method |
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|---|---|---|---|
| CN2009100427190A CN101491190B (en) | 2009-02-24 | 2009-02-24 | Flax chemical emasculation bloom-control lodging-prevention cultivation method |
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| Publication Number | Publication Date |
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| CN101491190A CN101491190A (en) | 2009-07-29 |
| CN101491190B true CN101491190B (en) | 2011-05-18 |
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| CN2009100427190A Expired - Fee Related CN101491190B (en) | 2009-02-24 | 2009-02-24 | Flax chemical emasculation bloom-control lodging-prevention cultivation method |
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| CN104813858B (en) * | 2015-05-07 | 2017-03-29 | 黑龙江省农业科学院经济作物研究所 | BRZ is improving Caulis et Folium Lini economical character and the application in yield |
| CN104871791B (en) * | 2015-06-11 | 2017-05-10 | 中国农业科学院麻类研究所 | Minimum tillage and no-tillage planting method for flax in southwest arid areas |
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Granted publication date: 20110518 Termination date: 20140224 |