CN101233841B - Method for preventing and removing weedy rice and weed in direct seeding and interplanting paddy field - Google Patents
Method for preventing and removing weedy rice and weed in direct seeding and interplanting paddy field Download PDFInfo
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Abstract
The invention relates to a method for preventing and removing rice weeds and weeds in direct seeding and interplanting seeding paddy, which pertains to a technical field of plant protection. The invention is mainly characterized in that: rice weed seeds and weed seeds left during direct seeding and interplanting seeding of last year are induced to grow; after former planted paddy is harvested, Glyphosate, a spray sterilant herbicide, is employed to prevent rice weeds and weeds, and solving the problem of incapability of removing older green weeds left during former planting paddy in direct seeding and interplanting seeding paddy; meanwhile, the Glyphosate has no effect on germination and growth of planted rice seeds and is environment friendly. The method for preventing and removing of the invention overcomes the shortages of incapability of employing chemical herbicides to remove rice weeds, worse and worse influence to normal direct seeding paddy, interplanting seeds, etc., and even destruction of cultivation and repeated displanting. The method for preventing and removing is in favor of paddy production in direct seeding and interplanting seeding and has significant social benefits.
Description
Technical field
The present invention relates to the method for control of weeds rice and weeds in a kind of live, interplanting paddy field, belong to the plant protection technology field.
Technical background
The weeds rice (Weedyrice) claim the red rice rice again, it is a kind of not high or stable non-cultivar paddy rice that produces separation of kind of conventional purity that is different from, its brown rice color of the leather is an aubergine, because it yields poorly, rice matter is poor, growth is fast, influence conventional cultivation japonica rice as weeds and grow and rice quality, in the world the rice of tens countries till land piece especially direct sowing rice field produce harm.Do all to have found in the mode infringement of weeds rice in recent years all rice, particularly the Direct-seeding Rice that increases income of saving of labor's abridged edition, cover broadcast light cultivation technology such as rice the japonica rice field, therefore weeds rice incidence and endanger increasingly, even the peasant household that has destroys and replants.At present in the world not as the chemical agent of controlling weeds controlling weeds rice behind rice seedling, various countries generally take crop rotation or plough the harm of method control weeds rice such as transplanting.In wheat rice continuous cropping area, the general tillage free or reducing that adopts during wheat cultivation, the weeds rice seed and the weeds seed that land last year concentrate in the topsoil, the weeds rice and the weeds of adopting Direct-seeding Rice and cover to broadcast rice are taken place obviously, and cover broadcasts rice and also have the left dark green elder weed of wheat paddock, on the Rice Production, weed killer herbicide can't effectively be prevented and kill off weeds rice and dark green elder weed, take the method manually pulled out, it is more to take a lot of work, the requirement that the incompatibility modern agriculture is produced.
Summary of the invention
The purpose of this invention is to provide a kind of live, the method of control of interplanting paddy field weeds rice and weeds, solve weeds rice and preceding batch of above the average age for marriage dark green weeds of leaving over of interplanting paddy field in existing Direct-seeding Rice and the interplanting paddy field, it is more and more heavier normal Direct-seeding Rice and cover to be broadcast the harm that japonica rice such as rice produces, even ruin to plough and replant again, and do not have a critical conditions of effective agent control, by the method for control of the present invention, realize that japonica rice produces the weeds rice and endangers little, the paddy rice growth of normally emerging, environmentally safe, help Direct-seeding Rice and cover is broadcast Rice Production such as rice,, increase peasant's income in order to increasing both production and income.
The objective of the invention is to be achieved through the following technical solutions, the method of control of weeds rice and weeds in a kind of live, interplanting paddy field, it is characterized in that described the method for control is that rice does to land weeds seed rice, the ruderal species of the surviving the winter growth of emerging last year in, the interplanting paddy field live by bringing out, stubble harvesting back spray steriland herbicide " glyphosate " controlling weeds rice and weeds before paddy rice.
Describedly bring out the last year rice and make to land weeds seed rice, the ruderal species of surviving the winter, be meant that stubble was gathered in the crops preceding 20-40 days before paddy rice, according to weather condition and field soil moisture content is soil moisture, the middle and later periods field flood irrigation water of stubble growth before paddy rice 0～2 time, utilize suitable at that time temperature and humidity, induce the last year rice to make to land the weeds rice that survives the winter and the weed seed of upper soll layer and sprout in early days.
Described cover is broadcast rice, preceding batch of Tanaka arrived in the rice paddy seed uniform broadcasting of not germinateing in 1-2 days of will soaking seed in 1-5 days before being meant the preceding stubble results of paddy rice, in time the stalk major part is imbedded dead furrow after the preceding stubble results, small part is scattered on the spot, prevent and kill off the above the average age for marriage dark green weeds that the weeds rice that emerged and weeds, preceding stubble field are left over glyphosate, poured water, flood field Gao Dun every 1 day, water conservation was preserved moisture and was urged full stand in 3-5 days in 2 days again, carried out the normal management of paddy rice later on.
Adopt 41% " farming reaches " steriland herbicide " glyphosate " of import, application dose 100～1000ml/ mu is converted water 10～50kg/ mu.
Adopt that homemade " 10% steriland herbicide " glyphosate ", application dose 400～4000ml/ mu are converted water 10～50kg/ mu.
The present invention is mainly live by bringing out, rice does to land the weeds seed rice of surviving the winter, the growth of ruderal species last year in the interplanting paddy field, the suitable time by spraying steriland herbicide " glyphosate " controlling weeds rice and weeds.Glyphosate is the steriland herbicide that cauline leaf is handled behind a kind of weeds bud, sprays to conduct to underground root after the back medicament is absorbed by cauline leaf.Can effectively prevent and kill off most annual and perennial grass family, broad-leaved class and sedge weed, it kills careless mechanism: medicament absorbs by cauline leaf and enters each position of plant corpus, interference and inhibition amino acid, phenyl alanine and tyrosine is synthetic in plant corpus, make the interior chromosome of cell nucleus not normal, underground rhizome loses regeneration capacity, causes plant ground and underground part to organize withered at last.The key property of this agent: not volatile, stable in the sun, do not decomposed by the radiation of sunlight middle-ultraviolet lamp; Dissolving fully in water; Noresidue and residual effect effect can not influence second stubble crop in soil.
The weeds rice with conventional cultivation paddy rice characteristic close, during paddy growth, can't use weed killer herbicide management of weeds rice, according to the observation, different year, rice did to land and emerged widely differently between the weeds rice field of surviving the winter last year, and the preceding stubble results that have were all emerged in preceding about 10 days, emerged successively before and after the preceding stubble results that have.By before preceding stubble results, pouring water 0-2 time in 20-40 days, induce the last year rice to make to land the seed rice of surviving the winter and early germinate and early go out full stand, when preceding stubble is gathered in the crops, japonica rice is not sowed (Direct-seeding Rice) or has overlapped and broadcasts rice paddy seed and do not show money or valuables one carries unintentionally, show money or valuables one carries unintentionally but when not emerging, the natural disposition of going out of utilizing the cauline leaf of glyphosate to handle is killed the weeds rice and the dark green weeds in field of having emerged, can effectively prevent the harm to cultivation japonica rice of dark green weeds that weeds rice and first crop leave over.
The present invention makes to land the seed rice of surviving the winter by bringing out the last year rice, prevent and treat with steriland herbicide " glyphosate " in preceding stubble results back, solved Direct-seeding Rice and interplanting paddy field can't the controlling weeds rice and interplanting paddy field before the above the average age for marriage dark green weeds left over of stubble, and " glyphosate " do not have influence, environmentally safe to the rice seed germination growth of sowing; Having broken through weeds rice (red rice rice) can't prevent and kill off with chemical herbicide, and normal Direct-seeding Rice and cover being broadcast japonica rice such as rice, to produce harm more and more heavier, even ruin the situation that replants again of ploughing, and helps Direct-seeding Rice and cover is broadcast Rice Production such as rice.
Before preceding stubble results about 20-40 days, according to weather condition and field soil moisture content (soil moisture), field flood irrigation 0-2 time: the weather wet weather was many, and the field soil high humidity is before paddy rice a batch middle and later periods field of growing need not pour water (0 time); The weather arid is short of rain, and field soil humidity is little, and the middle and later periods field flood irrigation water of stubble growth before paddy rice 1-2 time induces the last year rice to make to land the weed seed of the seed rice of surviving the winter and topsoil and early germinate and go out full stand morning.During harvesting, preceding stubble stalk major part is imbedded dead furrow, and small part is scattered on the spot, and the hot and humid decomposition of returning total stalks into fields during by paddy growth becomes organic manure.Paddy rice is not sowed (Direct-seeding Rice) or has overlapped and broadcasts rice paddy seed and do not show money or valuables one carries unintentionally, show money or valuables one carries unintentionally but when not emerging, and harvesting same day uses glyphosate, kills the weeds rice (red rice rice) and the dark green weeds in field of having emerged.Every 1 day sowing (Direct-seeding Rice) pour water, directly pour water and flood field Gao Dun (direct sowing rice field earlier live seed rice then pour water again), water conservation layer 2 days keeps going out full stand to paddy rice in the moistening 3-5 in field days again, carries out the conventional rice growth management later on." 41% glyphosate " application dose of import is at 100-1000ml/ mu; Homemade " 10% careless glycosides phosphorus " application dose is at 400-4000ml/ mu; Convert water 10-50kg/ mu.
1, bring out the weeds rice and take place, control efficiency is good
Make to land the seed rice of surviving the winter by bringing out the last year rice, with steriland herbicide " glyphosate " control, solved the difficult problem that Direct-seeding Rice and interplanting paddy field can't the controlling weeds rice in preceding stubble results back.The effective emergence rate of weeds rice reaches 100%, touches the weeds rice lethality 100% of " glyphosate " soup, because the uncertainty of operation and farmland situation, the actual control rate of weeds rice is at 90-100%.
2, the dark green elder weed that weeds and first crop are left over is brought out in control
By bringing out field topsoil weeds, at preceding stubble results back steriland herbicide " glyphosate ", control brings out that weeds are double controls the dark green elder weed that first crop is left over, interplanting paddy field weeds generating capacity obviously reduces, reduce greatly and reduce paddy chemical weeding agent consumption, efficiently solve the difficulty that the dark green elder weed of interplanting paddy field can't the with medicament control, even cover is broadcast rice and is not needed to use the chemical herbicide weeding again.
3, to rice seedling safety
According to test, 41% glyphosate 600ml/ mu does not have obvious influence to the seed rice emergence rate that the broken chest of dressing not shows money or valuables one carries unintentionally, and 1000ml/ mu does not have obvious influence to the seed rice emergence rate of mud drum clothing, and the actual usage amount of 41% glyphosate is only about 200ml/ mu.
4, improvement routine cover is broadcast rice and is broadcast for the wheat harvest protheca, improves the emergence rate that cover is broadcast rice
" ultra-high stubble wheatland cover rice regulations for technical operation (DB32/T423-2005); ultra-high stubble wheatland cover rice (conventional cover is broadcast rice) cover date of seeding is " the suitableeest sowing time of local conventional open country seedling "; the 1-5 cover was broadcast before this patent changed wheat harvest into; reduced and need pour water before the wheat harvest 1-2 time in (in southern wheat planting area; pouring water in the wheat grain filling later stage, whether to influence wheat growth still disputable) improve and overlap about 10 percentage points of emergence rates broadcasting rice Jiangsu Province's provincial standard.
The present invention creatively will induce the weed seed of the weeds seed rice of surviving the winter and topsoil early to germinate early to go out full stand to combine with use steriland herbicide in good time, and the controlling weeds rice is double controls the dark green weeds (interplanting paddy field) that first crop is left over, and effect is obvious.
Embodiment
Further specify the present invention in conjunction with the embodiments:
1, materials and methods
1.1 reagent agent
41% farming reaches aqua (glyphosate, U.S. broad-mouthed receptacle for holding liquid mountain all company are made); The no track aqua of 20% gram (paraquat, agricultural chemicals portion of Britain Jie Likang Co., Ltd produces).
1.2 experimental scheme
1.2.1 steriland herbicide is to the rice seedling safety testing
In the mid-April booth, temperature is at 10-30 ℃, choosing each 100 of No. 1 seed rice of peaceful round-grained rice of the broken chest of seed soaking, puts into the culture dish of dress earth, by the weed killer herbicide mu consumption of design, converts water 30kg, and to the seed rice spraying, every processing repeats for 3 times.2d fills up moisture and preserves moisture in culture dish, observe its germination rate and the situation of emerging.
Test is established: farming reaches 200ml/ mu, 400ml/ mu, 600ml/ mu, 800ml/ mu, 1000ml/ mu; Restrain no track 100ml/ mu, 200ml/ mu, 300ml/ mu, 400ml/ mu, 500ml/ mu; The clear water contrast.
1.2.2 the herbicidal effect that the various dose farming reaches
Containing the idle Tanaka of weeds, weeds are luxuriant before the dispenser, and density is 100-250 strain/chi
2, grass family is main.Select younger ones in an age group weeds (careless age＜5 leaf, similar wheatland later stage birth weeds) and weeds at advanced age (grass age＞10 leaf, the weeds at advanced age in later stage that similar wheatland is residual), the farming of observing different careless ages reaches consumption and herbicidal effect.
Test is established: farming reaches 100ml/ mu, 150ml/ mu, and 200ml/ mu and clear water contrast 4 are handled, and every processing 3 repeats every repetition 13.3m
2
1.2.3 field district test
Preceding stubble is for raising the spoke wheat No. 2, and rice varieties is No. 1, peaceful round-grained rice, is contrast with transplanting rice and conventional ultra-high stubble wheatland cover rice, observes the preceding 3d ultra-high stubble wheatland of wheat harvest and overlaps the rice yield performance that rice is adopted this measure, establishes 3 processing, and every processing repeats 3 times, randomized arrangement.The sub-district area is 14m
2, interval 0.4m in minizone and the sub-district.
Conventional ultra-high stubble wheatland cover rice (being called for short " the 15d cover is broadcast rice "): the rice paddy seed that the chest 80% of will soaking seed brokenly shows money or valuables one carries unintentionally walk method dressing, May 18 evenly broadcasted sowing in the wheat paddock face of land, seeding quantity is a 6kg/ mu, pours water to flood to the field face the front-seat clear field ditch ponding of sunrise in the 2nd day afternoon.Preceding stubble wheat mechanical harvesting on June 2, stalk toothing 30cm, harvested stalk scatters on the spot, the full dose mulching and returning.It is 17.5kg/ mu with the nitrogen amount always that rice does, and tillering fertilizer and ear manuer ratio are 7: 3, and the nutriment in a fertilizer of wherein tillering uses for 3 times, and other weeding and water starch management are carried out by Jiangsu Province's provincial standard " ultra-high stubble wheatland cover rice regulations for technical operation (DB32/T423-2005) ".
3d ultra-high stubble wheatland cover rice before the wheat harvest (being called for short " the 3d cover is broadcast rice "): the rice paddy seed that the chest 80% of will soaking seed brokenly shows money or valuables one carries unintentionally walk method dressing, May 30 evenly broadcasted sowing in the wheat paddock face of land, seeding quantity is a 6kg/ mu, preceding stubble wheat mechanical harvesting on June 2, wheat straw toothing 30cm, all the other wheat straws are inserted dead furrow, total crop return immediately, nearby.Harvesting back same day reaches 200ml/ mu with 41% farming and converts water 30kg even spraying, and the place that elder weed and weeds rice weeds are many suitably adds spray, and 2d pours water and flood to the field face afternoon, and water conservation is preserved moisture more than the 3d, and other is with " 15d overlaps and broadcasts rice ".
Conventional seedbed system transplanting rice (being called for short " transplanting rice "): the rice paddy seed premature rice that chest 80% shows money or valuables one carries unintentionally of will soaking seed brokenly May 18, watery ricenursery.Preceding stubble wheat mechanical harvesting on June 2 stays 5cm left and right sides wheat root stubble, and all the other wheat stalks all shift out outside the field, dig and turn over leveling, and June 8 transplanted, and seeding row spacing is 20 * 13.3cm.It is 17.5kg/ mu with the nitrogen amount always that rice does, and basal plane fertilizer is 6:4 with the ear manuer ratio.
2, result and analysis
2.1 the safety of different steriland herbicides
The rice seedling rate that table 1, different steriland herbicide are handled
| The place | 41% farming reaches | The no track of 20% gram | CK |
| Reason | 200ml | 400ml | 600ml | 800ml | 1000ml | 100ml | 200ml | 400ml | (clear water) |
| I II III is average | 74 66 61 67 | 66 68 72 68.7 | 66 51 67 61.3 | 60 35 36 43.7 | 19 18 10 15.7 | 21 28 9 19.3 | 5 12 10 9 | 0 0 0 0 | 61 81 64 68.7 |
According to test, choose brokenly the chest not dressing of rice paddy seed that shows money or valuables one carries unintentionally, medication spraying on the same day added water on the 2nd day to preserve moisture, and all Rice seeds treated can both be germinateed in 3 days, and 41% farming reaches below the 600ml/ mu, and is little to the rice seedling influence; And the no track 100ml/ mu of 20% gram, the rice seedling rate is less than 20%, even therefore 20% restrain no track low dose of (as 100ml/ mu), also can produce poisoning (table 1 to the broken chest rice paddy seed that shows money or valuables one carries unintentionally, table 2), wheat harvest protheca rice can not be adopted the no track of 20% gram, and 41% farming reaches (less than 600ml/ mu) and can be used for wheat harvest protheca rice as steriland herbicide, also is safe even break that chest shows money or valuables one carries unintentionally.
The rice seedling rate that table 1, different steriland herbicide are handled
| Handle | 41% farming reaches | The no track of 20% gram | CK (clear water) | ||||||
| 200ml | 400ml | 600ml | 800ml | 1000ml | 100ml | 200ml | 400ml | ||
| I II III is average | 74 66 61 67 | 66 68 72 68.7 | 66 51 67 61.3 | 60 35 36 43.7 | 19 18 10 15.7 | 21 28 9 19.3 | 5 12 10 9 | 0 0 0 0 | 61 81 64 68.7 |
As can be seen from Table 2, the broken chest of the dressing rice paddy seed that shows money or valuables one carries unintentionally not, using 41% farming when reaching, through variance analysis, dosage hour does not have obvious influence to rice seedling; During greater than 800ml/ mu, the rice seedling rate obviously descends.Broadcast rice with the broken chest of the earth dressing rice paddy seed that shows money or valuables one carries unintentionally as the routine cover, even then farming reaches dosage greater than 1000ml/ mu, also to the paddy rice germination rate and emerge and do not have obviously influence (table 3).
The germination rate and the emergence rate of the mud drum clothing rice paddy seed that table 3, various dose farming reach
| Handle | Germination rate | Emergence rate | ||||||||||
| 200 ml | 400 ml | 600 ml | 800 ml | 1000 ml | CK (clear water) | 200 ml | 400 ml | 600 ml | 800 ml | 1000 ml | CK (clear water) | |
| I II III is average | 89 90 66 81.7 | 76 94 61 77 | 77 86 72 78.3 | 85 95 70 83.3 | 69 91 80 80 | 91 70 89 83.3 | 73 70 54 65.7 | 68 71 60 66.3 | 62 75 64 67 | 73 82 70 75 | 62 89 79 76.7 | 87 65 83 78.3 |
In field experiment, the preceding 3d cover of wheat harvest is broadcast rice and is reached the processing of 200ml/ mu with 41% farming, and the field emergence rate reaches 58.8%, than not broadcasting 9.4 percentage points of rice raisings with agricultural preceding 15 days covers of wheat harvest that reach processing; Than high 3.6 percentage points (table 4) in seedling Ikeda.Illustrate before the wheat harvest that 1-3 days earth dressing covers broadcast rice and adopt 41% farming to reach to eliminate, be safe to rice seedling.
The rice seedling rate of table 4, Different Ways of Planting
| Handle | I | II | III | IV | V | On average |
| 15d cover in seedling Ikeda is broadcast rice 3d cover and is broadcast the rice germination rate | 38 66 51 87 | 61 25 63 94 | 64 53 34 90 | 59 33 70 | 54 70 76 | 55.2 49.4 58.8 90.3 |
2.2 the herbicidal effect that the various dose farming reaches
According to test, containing the idle Tanaka of weeds, select younger ones in an age group weeds (grass age＜5 leaf, similar wheatland later stage birth weeds), spray 41% farming August 20 and reach 100-200ml/ mu, 1 day weeds does not have significant change behind the medicine; Because temperature height, weeds leaf age are little, weeds are obviously withered and yellow after 2 days, and weeds are all withered after 3 days.
Select weeds at advanced age (grass age＞10 leaf, the weeds at advanced age in later stage that similar wheatland is residual), sprayed 41% farming May 29 and reach 100-200ml/ mu, weeds begin to wilt in the time of 2 days, all do not have obvious growth but respectively handle weeds compared with the control; Farming reaches 200ml/ mu and handles grass cutting blade and begin yellow in the time of 7 days, and 150ml/ mu treatment effect is poorer than 200ml/ mu, and it is not obvious that 100ml/ mu is handled the weeds yellow; Farming reaches 200ml/ mu when handling behind the medicine 14 days, and weeds are all withered, and 97% weeds were withered when 150ml/ mu was handled behind the medicine 20 days, and 92% weeds were withered when 100ml/ mu was handled behind the medicine 25 days.
Result of the test shows that little weeds (leaf age is below 5 leaves) and rice seedling reach 100ml/ mu with 41% farming, when temperature is high, can kill fully in 3 days especially; And advanced age weeds, it is slower that farming is reached reaction, when temperature hanged down, 41% farming reaches 200ml/ mu weeds and rice seedling to be needed just can kill more than 14 days.
Small plot experiment shows that the 3d cover is broadcast rice spray 41% farming in time after wheat harvest and reached 200ml/ mu, and the elder weed and the rice seedling of surviving the winter are dead more than 95% after 20 days, and effect is remarkable.
Pests occurrence rule of weeds rice and prophylactico-therapeutic measures 2.3 survive the winter
Weeds rice and conventional japonica rice all are the grass family Oryzas, biological property and growth rhythm are approaching, because the weeds rice yields poorly, a rice matter difference adds that seed holding is strong, the emerge morning, emergence rate height, plant of surviving the winter is short, be difficult for removing, easily Direct-seeding Rice and cover being broadcast rice works the mischief, be called " weeds rice " abroad (Weedyrice),, take measures to prevent and kill off by studying its pests occurrence rule.
2004 annual several seed rice winter tests, spring in 2005, rainwater was many, and rice seed was the earliest emerged April 10, and most of kind comprises 2 types of weeds rice emerge behind the daily temperature height in Mays 8 (table 5), but the time limit that the autogeny rice of surviving the winter is emerged is short, just no longer emerges after May 26.When preceding stubble wheat gathered in, the spontaneous rice seedling of surviving the winter was bigger, leaf age about 2.5.
Spring in 2006, rainwater was few, and when preceding stubble wheat gathered at the beginning of 6 months, the weeds rice that survives the winter just emerged.
Spring in 2007, rainwater was also few, and April 28 poured water 1 time, and the weeds rice that survives the winter went out before May 20 entirely, just no longer emerged later on.
According to the rule of emerging more than the weeds rice that survives the winter, in conjunction with rainwater situation in spring then, rainwater lacks the time and irritates 1 time water by the end of April, the short weeds rice that survives the winter is early taken place, in the area that can carry out Direct-seeding Rice, take before the wheat harvest 1-3 days covers to broadcast rice and add 41% farming of 200ml/ mu and reach supporting technology, can effectively prevent the harm of weeds rice.
Table 5, the autogeny rice seed sprouting progress of surviving the winter (500)
| Kind | 0.5cm the degree of depth | The 2cm degree of depth | ||||||||
| 5/8 | 5/14 | 5/20 | 5/26 | 6/1 | 5/8 | 5/14 | 5/20 | 5/26 | 6/1 | |
| No. 7 forces of military fortune round-grained rice are educated No. 11 high stalk red rice of red rice rice of short stem of No. 3 military fortune round-grained rice of round-grained rice rice | 8 14 3 35 13 | 9 17 3 50 21 | 9 19 4 53 26 | 10 19 4 53 26 | 10 19 4 53 26 | 1 2 0 5 1 | 1 2 0 5 13 | 1 2 0 5 16 | 1 2 0 10 16 | 1 2 0 10 16 |
2.4 Different Ways of Planting is to the influence of rice yield
Table 6, Different Ways of Planting rice yield and formation
| Handle | Single-strain tassel number | Mu spike number (ten thousand) | Number of grain per ear | Total grain husk flower (ten thousand) | Ripening rate (%) | Thousand kernel weight (g) | Theoretical yield (kg/ mu) | Actual production (kg/ mu) |
| Transplanting rice 20d cover is broadcast rice | 7.44 3.54 | 16.6 22.3 | 132.4 106.9 | 2197.8 2383.9 | 97 96.7 | 27.5 26.9 | 586.3 620.1 | 563.5 586.0 |
| The 3d cover is broadcast rice | 2.42 | 26.2 | 89.58 | 2347 | 96.3 | 27.1 | 612.5 | 578.5 |
Through comparative trial (table 6), it is the highest to broadcast rice output with the 15d cover, and the 3d cover is broadcast rice and taken second place, and transplanting rice output is minimum, and through variance analysis, 3 processing volume variances are not remarkable.Transplanting rice is because stripe virus disease influence, the death of part seedling, and basic seedling and spike number are less, and output is on the low side; Adopt preceding 3 days covers of wheat harvest to broadcast rice and add 41% farming and reach 200ml/ mu technology (the 3d cover is broadcast rice), because the emergence rate height, basic seedling and spike number are more more, but the individual plant mature spike number is low, and number of grain per ear is less, and final rice yield overlaps with 20d broadcasts rice and close.
Effect of the present invention
41% farming reaches with 20% paraquat and is steriland herbicide, although paraquat can make rapidly the weeds cauline leaf withered, also produces poisoning even the germination that low dose of (100ml/ mu) shows money or valuables one carries unintentionally to broken chest emerges, and is not suitable for Rice Interplanted with Ultra High-stubble Wheat and uses; It is a kind of interior suction conduction selective herbicide that farming reaches, medicine liquid spray is behind plant stem-leaf, can be by the very fast absorption of plant, transporting is to underground root in bast and xylem, can effectively prevent and kill off most annual and go out for many years grass family, broad-leaved class and sedge weed, the ashamed usefulness of noresidue and residual effect in soil, this test shows, in the situation that rice paddy seed shows money or valuables one carries unintentionally, 41% farming reaches 600ml/ mu can not produce harmful effect to rice seedling; 100ml/ mu just can kill weeds and the Weedy Rice of low leaf age, and the elder weed more than 10 leaves is needed just can produce effect more than the 200ml/ mu. Broadcast low leaf age Weedy Rice and the weeds of the existing firm birth of Tanaka according to 1-3d cover before the Rice Interplanted with Ultra High-stubble Wheat wheat harvest, the still weeds characteristics of viridescent that also have the first crop wheatland not eliminate, farming reaches with 200ml/ mu is advisable, and effectively management of weeds rice and various weeds are again to rice seedling safety.
The 1-3d cover is broadcast with farming and is reached at the wheat harvest rear defence except the red rice rice before the Rice Interplanted with Ultra High-stubble Wheat wheat harvest, should how much take the measure that differs according to the rainwater in spring: the many time red rice rice of rainwater in spring emerge early then, what can emerge before by the end of May all emerges and more than seedling age 2 leaves, prevents and kill off but directly reach with 41% farming after the wheat harvest; The few time red rice rice of rainwater in spring emerges late then, need at 1 sufficient water of wheatland filling in the first tenday period of a month in late April to May, bringing out the red rice rice occurs, allow whole the emerging that the red rice rice can emerge before by the end of May of surviving the winter, and more than 2 leaves, could be after wheat harvest reach with farming and prevent and kill off, otherwise the seed rice that the red rice rice can emerge before at the end of May just germinates, can not be reached effectively by farming and prevent and kill off.
The 1-3d cover is broadcast before the Rice Interplanted with Ultra High-stubble Wheat wheat harvest, emergence rate is high, it is neat to emerge, 41% farming reaches the harm that the processing energy term of validity prevents red rice rice and elder weed during by wheat harvest, rice yield is higher, and its wheat straw returning of taking into account Rice Interplanted with Ultra High-stubble Wheat fertilizes the soil and prevents that burning contaminated environment and Direct-seeding Rice saving of labor abridged edition, peasant grasp easily, but than Direct-seeding Rice Zao 5-7d breeding time, more Zao than the Direct-seeding Rice heading, stable yields is safe, should in the acceptable area of current Direct-seeding Rice peasant, strengthen applying.
Claims (2)
1. the method for control of weeds rice and weeds in live, the interplanting paddy field, it is characterized in that described the method for control is that stubble was gathered in the crops preceding 20-40 days before the paddy rice, according to weather condition and field soil moisture content is soil moisture, field flood irrigation water 0～2 time, utilize suitable at that time temperature and humidity, induce the last year rice to make to land the weeds rice that survives the winter and the suppressing weed seed germination of upper soll layer; Before paddy rice after the stubble harvesting, prevent and kill off the weeds rice that emerged and weeds, the preceding batch of above the average age for marriage dark green weeds that the field is left over steriland herbicide " glyphosate " spraying; Live, interplanting paddy field must be poured water every 1 day in " glyphosate " spraying back, steriland herbicide " glyphosate " adopts import " farming reaches ", it contains 41% glyphosate, application dose 100～1000ml/ mu, or adopt homemade " 10% glyphosate ", application dose 400～4000ml/ mu is all converted water 10～50kg/ mu.
2. the method for control of weeds rice and weeds in live, the interplanting paddy field according to claim 1, it is characterized in that described cover broadcasts rice, preceding batch of Tanaka arrived in the rice paddy seed uniform broadcasting of not germinateing in 1-2 days of will soaking seed in 1-5 days before being meant the preceding stubble results of paddy rice, in time the stalk major part is imbedded dead furrow after the preceding stubble results, small part is scattered on the spot, pours water every 1 day in " glyphosate " spraying back, and the water surface floods field Gao Dun, water conservation was preserved moisture and was urged the paddy rice full stand in 3-5 days in 2 days again, carried out the normal management of paddy rice later on.
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| CN2008100185888A CN101233841B (en) | 2008-02-29 | 2008-02-29 | Method for preventing and removing weedy rice and weed in direct seeding and interplanting paddy field |
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| CN2008100185888A CN101233841B (en) | 2008-02-29 | 2008-02-29 | Method for preventing and removing weedy rice and weed in direct seeding and interplanting paddy field |
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| Publication Number | Publication Date |
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| CN101233841A CN101233841A (en) | 2008-08-06 |
| CN101233841B true CN101233841B (en) | 2010-11-24 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103535228A (en) * | 2013-10-17 | 2014-01-29 | 常熟市梅李镇香园稻米专业合作社 | High-yield and high-efficiency rice cultivating method |
| CN103918515A (en) * | 2014-04-25 | 2014-07-16 | 肖金林 | Three methods for high yield of quantum rice |
| CN104982270A (en) * | 2015-06-04 | 2015-10-21 | 南京农业大学 | Technology of weedy rice prevention and removal by utilizing weedy rice biological characteristic |
| CN105794457B (en) * | 2016-03-22 | 2019-01-11 | 山东省农业科学院植物保护研究所 | A method of control Huang-Huai-Hai winter wheat Tian great Sui amur foxtail |
| CN105766318B (en) * | 2016-03-22 | 2019-01-15 | 山东省农业科学院植物保护研究所 | A kind of agricultural method controlling winter wheat field weed Triticum tauschii |
| CN106376397A (en) * | 2016-08-26 | 2017-02-08 | 江苏徐淮地区淮阴农业科学研究所 | Method of controlling weeds in no-tillage dry direct seeding paddy rice field |
| CN106472100A (en) * | 2016-10-27 | 2017-03-08 | 安徽省农业科学院土壤肥料研究所 | A kind of method of cornfield interplanting no-tillage and direct-seeding paddy rice |
| CN109699265B (en) * | 2019-03-06 | 2021-09-03 | 淮安市农业技术推广中心 | Fertilizing method suitable for mechanically transplanting japonica rice in wheat stubble in northern Jiangsu area |
| CN110122231A (en) * | 2019-06-18 | 2019-08-16 | 湖南省农业生物技术研究所 | A kind of transplanting rice field exempts to apply the control grass method of chemical herbicide |
| CN111109239A (en) * | 2020-01-03 | 2020-05-08 | 湖南省农业科学院 | Comprehensive evaluation method and device for field application of novel herbicide |
| CN113099920B (en) * | 2021-04-06 | 2022-04-08 | 江苏沿海地区农业科学研究所新洋试验站(盐城市新洋农业试验站) | Artificial weedy rice removing method |
| CN114532125A (en) * | 2022-03-03 | 2022-05-27 | 江苏农林职业技术学院 | Method for reducing harm of weeds in rice field |
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Inventor after: Guo Xunbin Inventor after: Xu Shilin Inventor after: Chen Weimin Inventor after: Yuan Qin Inventor after: Gu Keli Inventor after: Bi Yongqi Inventor after: Yuan Qilin Inventor before: Guo Xunbin Inventor before: Xu Shilin Inventor before: Chen Weimin Inventor before: Yuan Qin Inventor before: Gu Keli |
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