CN103460939B - The implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant - Google Patents
The implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/28—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture specially adapted for farming
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
The invention discloses the implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant, comprise the following steps: spring is according to the requirement of lower stubble no-tillage and direct-seeding winter rape, carry out respectively applying fertilizer, plough deeply, harrow mill, covering with plastic film after Spring maize seeding in good time, whole breeding time do not taken off mulch film by corn, after autumn harvest corn, remove maize straw, retain mulch film, directly Non-ploughing dibble sowing winter rape on mulch film, winter rape does not take off mulch film whole breeding time, until summer next year, winter rape was gathered in the crops, specific as follows: (1) removes maize straw; (2) sow; (3) field management.Method of the present invention saves farming season, can realize winter rape and begin sowing in good time, and soil water content and ground temperature when sowing winter rape after improve harvest corn, make its neat and consistent of emerging, growth of seedling is healthy and strong, decreases operation, reduces cost.
Description
Technical field
The present invention relates to a kind of planting technology, particularly, relate to the implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant.
Background technology
Rape is the oil crop that Gansu Province's cultivated area is maximum and output is the highest, and nearly 18.7 ten thousand hectares of sowing area, wherein nearly about 110,000 hectares of winter rape cultivated area, accounts for 60% of the total sowing area of rape.Mainly be distributed in Dryland, loess plateau, the central and east, Gansu Province.Surviving the winter and growing of Soil Moisture and winter rape has very close relationship.But this district's winter rape growing period, has arid short of rain, daily temperature range is large, cold warm changeable climate feature.Therefore, the antifreeze key being Rainfed Region in Gansu winter rape and getting bumper crops of strong drought resistant is added.
Dryland, loess plateau, the central and east, Gansu Province is poor district occurred frequently, have accumulated the rural area absolutely poverty-stricken population of local area more than 80%, underdeveloped, and ecotope is severe, and the industrial structure is single.The a large amount of immigrant laborers of rural laborer, the labour that winter rape is produced drops into wretched insufficiency, is badly in need of proposing gently to simplify cropping pattern.Namely, for the traditional planting technology of turn over sowing, fine-grained management, flow chart is simple, less input for labour and capital, time saving and energy saving, abridged edition, efficiently culture technique.
In recent years, corn full film double-furrow technology applying in Dryland, the central and east, Gansu Province, has increased substantially the output of corn, has transferred the kind grain enthusiasm of peasant greatly, this technology from 2005 20000 mu increase 2011 rapidly 1,071 ten thousand mu, annual growth 185%.The sowing area of winter wheat is significantly have compressed while corn area increases sharply, and the rotation system that wheat oil (winter wheat-winter rape) rotation system Shi Gai district is main, thus winter rape cultivated area also reduces thereupon.Visible, there is the contradiction of winter rape area reduction and crop rotation in increasing rapidly of corn full film double-furrow sowing planting area.Beautiful oil (mulch film spring corn-winter rape) rotation system research and apply becomes this district's agricultural key technical problem urgently to be resolved hurrily.
After the mulched maize results of Dryland, loess plateau, the central and east, current Gansu, need to drop into larger manpower and materials and remove the relatively intact mulch film (breakage rate is less than 30%) in field, behind whole ground, sow second stubble crop.Not only cause mulch film availability to decline, also cause agriculture production cost increase, delay in farming season and the soil evaporation of water in soil etc.
How the problem of above-mentioned four aspects being organically combined, proposing a kind of method of planting winter rape after suitable mulched maize is received, is the important topic being badly in need of solving.
Summary of the invention
The technical problem to be solved in the present invention overcomes existing defect, provides the implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant.
In order to solve the problems of the technologies described above, the invention provides following technical scheme:
The implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant, comprise the following steps: spring is according to the requirement of lower stubble no-tillage and direct-seeding winter rape, carry out respectively applying fertilizer, plough deeply, harrow mill, covering with plastic film after Spring maize seeding in good time, whole breeding time do not taken off mulch film by corn, after autumn harvest corn, remove maize straw, retain mulch film, directly Non-ploughing dibble sowing winter rape on mulch film, winter rape does not take off mulch film whole breeding time, until summer next year, winter rape was gathered in the crops, specific as follows:
(1) maize straw is removed, protection mulch film: after mulched maize results, overhead 5-10cm height harvesting corn stalk, the weeds on the residual earth's surface of removing and corn stem leaf etc., avoid scratching mulch film (breakage rate is less than 30%) as far as possible, if there is breakage should earthing in time, divide evaporation to prevent water;
(2) sow: select the directly bunch planting on film of degeneration-resistant high yield winter rape variety with the wheeled seeder of hand-push type, sowing depth 2-3cm, line-spacing 20-25cm, spacing in the rows 18-23cm, 3-5 grain/cave; August 25 completed sowing to September 10; Planting hole to be checked at any time during sowing, in case seeder blocking, cause the disconnected ridge that is short of seedling;
(3) field management:
A, survive the winter before management: when emerging, whether timely observation has the situation of being short of seedling, and is short of seedling if having, and manually reseeds in time; After emerging 10 days, find that film presses down Miao Shiying and puts seedling in time; Growth of rape completes final singling to disposable during 3-5 sheet true leaf, and seedling 2 strain is stayed in every cave, and density domination is at 30-45 ten thousand strains/hm
2; The plot that seedling growing way is poor, parallelly to cover 1/2 of front stubble maize straw on the capable face of rape when surviving the winter, and plays protection mulch film and prevents the rape effect of enduring cold, next year period of seedling establishment to move stalk;
B, the rational application of fertilizer: winter rape is met rain or imposed instant nitrogenousfertilizer (amounting to purity nitrogen content) 75-90kg/hm with the wheeled fertilizer applicator of hand-push type after turning green
2;
C, the extermination of disease and insect pest: rape turn green after attention control Rape stem weevil; Rape initial bloom stage is fertile in conjunction with three spray two blowout prevention dispensers, and the fertile composition of described medicine is:
Boron fertilizer (mass percent 0.2%), potassium dihydrogen phosphate (mass percent 0.2%) and the medicine that is made into of urea (mass percent 2%), percent by volume 40% flolimat, percent by volume 40% dimethachlon or percent by volume 50% carbendazol wettable powder 1000 times of liquid fertile, 750kg/hm
2spraying;
D, in good time results: when left and right corner fruit in full field 2/3 presents faint yellow, gather in the crops when main sequence major part angle fruit seed presents pitchy, want timely stacking after-ripening after withdrawal, threshing air dry beaten by stone roller;
E, residual membrane removal: after rape harvest, thoroughly remove field waste mulching film, recycling with artificial or machinery, protect the fields ecotope, for good working condition is created in second stubble crop growth.
Further, described instant nitrogenousfertilizer is ammonium chloride, carbonic hydroammonium, ammonium nitrate etc.
Instant nitrogenousfertilizer is relative slow-release nitrogen fertilizer, namely soluble in water, is available nutrient, and crop can directly absorb, and fertilizer efficiency is fast.
Wherein front stub land film cultivating method of crop is as follows:
1) meticulous wholely, use sufficient base manure.Selection soil layer is deep, soil property vegetables pine, middle fertility, the level land that yield potential is large, application in time before spring sowing (10-15 day in April) corn, ploughs deeply, harrows mill.Fertilizer combination applies wholely.Wherein, fertilising is farmyard manure 5-8 ten thousand kg/hm before overlay film in spring
2or refined organic fertilizer 750-1200kg/hm
2, normal superphosphate (amounts to P
2o
5content) 180-225kg/hm
2, slow-release nitrogen fertilizer (amounting to purity nitrogen content) 240-300kg/hm
2base-appling once, corn growth stage is not topdressing; Plough deeply is to deep plough 30-35cm with tractor; Rake mill accomplishes land readjustment, without soil block, unrooted stubble.
2) overlay film.Employing wide cut is the white mulch film of 120cm, thickness 0.01mm, and whole ground carries out full film double-furrow broadcast mode with artificial or machinery afterwards and carries out overlay film.Mulch film bandwidth 110cm when full film double-furrow covers, often taking up the large ridge of bottom width 40cm, the micro-ridge of high 15-20cm and bottom width 70cm, high 10-15cm, is seed furrow in the middle of two ridges, film and intermembranously not interspace, mulch film is real by soil pressure in great Long joint, every the native waistband of the horizontal pressure of 200cm one.During overlay film mulch film must strain, stretch, pave, spread even.
3) sow.With corn Portable dibble seeder or the wheeled seeder of hand-push type after overlay film, mid-early maturity density-resisting and high-yield kind is selected directly to sow in seed furrow, density adjusts according to corn variety characteristic and local precipitation condition, fertility level, reaches suitable close plantation, is generally 6-7.5 ten thousand strains/hm
2, every bunch planting 2, sowing depth 3-4cm.
4) field management.1. mulch film is checked.Running check mulch film after overlay film, as found, mulch film has the damaged place ventilated, and timely fine earth to obturage; 2. put seedling in time, avoid high temperature to burn seedling.When seedling leaves turns green teleblem, timely rupture of membranes puts seedling.Put seedling should calm fine day the morning 10 time front or afternoon 4 time after carry out.Seedling should be obturaged seedling setting hole with thin wet soil after releasing film at any time; 3. final singling in good time, in time except tiller.Between, final singling once should complete in conjunction with the growth of cereal crop seedlings, generally carries out in the 3-5 leaf phase, field growth of seedling is neat, evenly, seedling gesture more by force should early between fixed, seedling gesture is more weak should suitably determine evening.To grasp flexibly when being short of seedling to adopt and stay two strain or the measures such as benefit cultivation of transplanting seedlings in conjunction with final singling near cave, to strive for full stand.Should check at any time and tiller, break in time and remove; 4. the extermination of disease and insect pest.Maize at Seedling Stage should based on insects such as control of grubs, cutworm, wireworm, mole crickets; Booting stage emphasis carry out the control of corn borer; 5. gather in the crops in good time.When corn ear bract turns yellow, seed is hardening, and milk-line disappears to 2/3 place, can gather in the crops in good time.
beneficial effect of the present invention:
The cold-resistant implantation methods of the no-tillage drought resisting of a kind of nonirrigated farmland winter rape provided by the invention, have selected density-resisting and high-yield mid-early maturity corn variety sowing date for early sowing, and decreases soil working after harvest corn, saves farming season, can realize winter rape and begin sowing in good time; Soil water content and ground temperature when sowing winter rape after improve harvest corn, neat and consistent of emerging, growth of seedling is healthy and strong; Reduce operation, reduce costs; Full film double-furrow is broadcast corn and is received rear no-tillage and direct-seeding winter rape on ridge, change the plane that soil surface puts down work by tradition into undaform, expand soil surface area, add the intercepting and capturing amount of light, solve the flat ventilation and penetrating light bad phenomenon doing to cause because of colony's strongly fragrant covering in excessive field of tradition preferably; Resistant clone, the effect of increasing income is remarkable.Visible, cultivation method of the present invention is that a kind of flow chart is simple, less input for labour and capital, time saving and energy saving, cost-saving, high-quality and efficient light simplification implantation methods.Being applicable to annual precipitation 350-600mm is that the loess plateau dry farming winter rape growing area of guide's cropping pattern is applied with mulched maize.
Embodiment
Following embodiment is convenient to understand the present invention better, but does not limit the present invention.Experimental technique in following embodiment, if no special instructions, is conventional method.
In the embodiment of the present invention fertilizer used purchased from:
Slow-release nitrogen fertilizer: SODm urea, is purchased from Lanzhou Petrochemical Company chemical fertilizer factory;
Refined organic fertilizer: ferment corn fertilizer special for organic, is purchased from Wei Tong bio tech ltd of Chifeng;
Normal superphosphate: " galloping horse board " normal superphosphate, is purchased from Jinchang, Gansu chemical industry (group) Co., Ltd;
Instant nitrogenousfertilizer: " galloping horse board " ammonium chloride, is purchased from Jinchang, Gansu chemical industry (group) Co., Ltd;
Boron fertilizer: instant boron (foliage fertilizer), is purchased from Yingkou Peng Da Fine Chemical Co., Ltd.
embodiment 1
The implantation methods that the no-tillage drought resisting of winter rape of a kind of nonirrigated farmland is cold-resistant, comprise the following steps: spring is according to the requirement of lower stubble no-tillage and direct-seeding winter rape, carry out respectively applying fertilizer, plough deeply, harrow mill, covering with plastic film after Spring maize seeding in good time, whole breeding time do not taken off mulch film by corn, after autumn harvest corn, remove maize straw, retain mulch film, directly Non-ploughing dibble sowing winter rape on mulch film, winter rape does not take off mulch film whole breeding time, until summer next year, winter rape was gathered in the crops, specific as follows:
(1) maize straw is removed, protection mulch film: after mulched maize results, overhead 5cm height harvesting corn stalk, the weeds on the residual earth's surface of removing and corn stem leaf etc., avoid scratching mulch film (breakage rate is less than 30%) as far as possible, if there is breakage should earthing in time, divide evaporation to prevent water;
(2) sow: select the directly bunch planting on film of degeneration-resistant high yield winter rape variety with the wheeled seeder of hand-push type, sowing depth 2cm, line-spacing 20cm, spacing in the rows 18cm, 3/cave; August 25 completed sowing to September 10; Planting hole to be checked at any time during sowing, in case seeder blocking, cause the disconnected ridge that is short of seedling;
(3) field management:
A, survive the winter before management: when emerging, whether timely observation has the situation of being short of seedling, and is short of seedling if having, and manually reseeds in time; After emerging 10 days, find that film presses down Miao Shiying and puts seedling in time; Disposablely during growth of rape to 3 slice true leaf complete final singling, seedling 2 strain is stayed in every cave, and density domination is at 300,000 strains/hm
2; The plot that seedling growing way is poor, parallelly to cover 1/2 of front stubble maize straw on the capable face of rape when surviving the winter, and plays protection mulch film and prevents the rape effect of enduring cold, next year period of seedling establishment to move stalk;
B, the rational application of fertilizer: winter rape is met rain or imposed instant nitrogenousfertilizer (amounting to purity nitrogen content) 75kg/hm with the wheeled fertilizer applicator of hand-push type after turning green
2;
C, the extermination of disease and insect pest: rape turn green after attention control Rape stem weevil; Rape initial bloom stage is fertile in conjunction with three spray two blowout prevention dispensers, and the fertile composition of described medicine is:
Boron fertilizer (mass percent 0.2%), potassium dihydrogen phosphate (mass percent 0.2%) and the medicine that is made into of urea (mass percent 2%), percent by volume 40% flolimat, percent by volume 40% dimethachlon or percent by volume 50% carbendazol wettable powder 1000 times of liquid fertile, 750kg/hm
2spraying;
D, in good time results: when left and right corner fruit in full field 2/3 presents faint yellow, gather in the crops when main sequence major part angle fruit seed presents pitchy, want timely stacking after-ripening after withdrawal, threshing air dry beaten by stone roller;
E, residual membrane removal: after rape harvest, thoroughly remove field waste mulching film, recycling with artificial or machinery, protect the fields ecotope, for good working condition is created in second stubble crop growth.
embodiment 2
The annual the technology of the present invention of demonstrating in Chinese parasol tree administrative village, Shang Xiao township, Zhenyuan County, Gansu Province of 2010-2011, demonstration area 5hm
2.Demonstration pilot project 5-8 day in April, 2010 selects soil layer deep, and farmyard manure 80,000 kg/hm is executed on the level land of middle fertility
2, normal superphosphate (amounts to P
2o
5) 225kg/hm
2, slow-release nitrogen fertilizer (amounting to purity nitrogen content) 260kg/hm
2after plough deeply, harrow mill.Whole ground adopts wide cut to be the white mulch film of 120cm, thickness 0.01mm afterwards, broadcasts laminating machine overlay film with full film double-furrow.Mulch film bandwidth 110cm, often takes up the large ridge of bottom width 40cm, the micro-ridge of high 15-20cm and bottom width 70cm, high 10-15cm, be seed furrow in the middle of two ridges, film and intermembranously not interspace, mulch film in great Long joint by soil pressure reality, every the native waistband of the horizontal pressure of 200cm one.10-13 day in April, 2010, with the wheeled seeder of corn hand-push type, directly sow in seed furrow, thickness of sowing 7.5 ten thousand strains/hm
2, every bunch planting 2, sowing depth 3-4cm, experimental cultivar: Jixiang No.1.Enhance field management after mulch sowing.After 29 days-September 3 August in 2010 mulched maize results, overhead 5-10cm height harvesting corn stalk, retains mulch film, removes the weeds on residual mulching film surface and corn stem leaf etc., avoids scratching mulch film (breakage rate is less than 30%) as far as possible.If there is breakage should earthing in time.5-8 day in September, 2010, sowing depth 2-3cm, micro-ridge was sowed 2 row, large ridge planting 3 row, spacing in the rows 20cm, 3-5 grain/cave with the wheeled seeder of hand-push type directly bunch planting winter rape on film.Experimental cultivar: prolong No. 2, oil.Planting hole to be checked at any time, in case seeder blocking during sowing.After planting enhance field management, mainly comprise: manage before 1. surviving the winter.Look into seedling in time, fill the gaps with seedlings, put seedling; Growth of rape completes final singling to disposable during 3-5 sheet true leaf, and seedling 2-3 strain is stayed in every cave, and density domination is at 400,000 strains/hm
2left and right; 2. the rational application of fertilizer.Winter rape is met rain or is imposed instant nitrogenousfertilizer (amounting to purity nitrogen content) 90kg/hm with the wheeled fertilizer applicator of hand-push type after turning green
2.3. the extermination of disease and insect pest.Rape is prevented and treated Rape stem weevil with 2.5% decis, 5000 times of liquid after turning green; Rape initial bloom stage in conjunction with the anti-boron fertilizer of three sprays two (mass percent 0.2%), potassium dihydrogen phosphate (mass percent 0.2%) and the medicine that is made into of urea (mass percent 2%), percent by volume 40% flolimat, percent by volume 40% dimethachlon or percent by volume 50% carbendazol wettable powder 1000 times of liquid fertile, 750kg/hm
2spraying;
4. gather in the crops in good time.15-18 day in June, 2011, left and right corner fruit in full field 2/3 presents faint yellow, gathers in the crops when main sequence major part angle fruit seed presents pitchy.5. residual membrane removal.After rape harvest, thoroughly remove field waste mulching film with artificial or machinery.
2010-2011 year winter rape growing period, is subject to serious arid and freeze injury.Monitoring result shows, the technology of the present invention winter rape sowing-peduncle-growing period for rapeseed topsoil soils mean temperature comparatively conventional art improves 1.2 DEG C; Sow to peduncle-growing period for rapeseed 0-2m soil layer soil moisture content comparatively conventional art on average improve 1.02 percentage points.
The technology of the present invention yield of rape average out to 1854.0kg/hm
2, comparatively conventional art volume increase 44.1%, net income is 3355.5 yuan/hm
2, comparatively conventional art synergy 84.6%.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1. the implantation methods that the no-tillage drought resisting of nonirrigated farmland winter rape is cold-resistant, it is characterized in that, comprise the following steps: spring according to the requirement of lower stubble no-tillage and direct-seeding winter rape, carry out respectively applying fertilizer, plough deeply, harrow mill, covering with plastic film after Spring maize seeding in good time, whole breeding time do not taken off mulch film by corn, after autumn harvest corn, remove maize straw, retain mulch film, directly Non-ploughing dibble sowing winter rape on mulch film, winter rape does not take off mulch film whole breeding time, until summer next year, winter rape was gathered in the crops, specific as follows:
(1) maize straw is removed, protection mulch film: after mulched maize results, overhead 5-10cm height harvesting corn stalk, remove weeds and the corn stem leaf on residual earth's surface, avoid scratching mulch film, ground Ratio of breakage is less than 30% as far as possible, if there is breakage should earthing in time, divide evaporation to prevent water;
(2) sow: select the directly bunch planting on film of degeneration-resistant high yield winter rape variety with the wheeled seeder of hand-push type, sowing depth 2-3cm, line-spacing 20-25cm, spacing in the rows 18-23cm, 3-5 grain/cave; August 25 completed sowing to September 10; Planting hole to be checked at any time during sowing, in case seeder blocking, cause the disconnected ridge that is short of seedling;
(3) field management:
A, survive the winter before management: when emerging, whether timely observation has the situation of being short of seedling, and is short of seedling if having, and manually reseeds in time; After emerging 10 days, find that film presses down Miao Shiying and puts seedling in time; Growth of rape completes final singling to disposable during 3-5 sheet true leaf, and seedling 2 strain is stayed in every cave, and density domination is at 30-45 ten thousand strains/hm
2; The plot that seedling growing way is poor, parallelly to cover 1/2 of front stubble maize straw on the capable face of rape when surviving the winter, and plays protection mulch film and prevents the rape effect of enduring cold, next year period of seedling establishment to move stalk;
B, the rational application of fertilizer: winter rape is met the wheeled fertilizer applicator of rain hand-push type and imposed instant nitrogenousfertilizer after turning green, amounting to purity nitrogen content is 75-90kg/hm
2;
C, the extermination of disease and insect pest: rape turn green after attention control Rape stem weevil; Rape initial bloom stage is fertile in conjunction with three spray two blowout prevention dispensers, and the fertile composition of described medicine is:
The boron fertilizer of mass percent 0.2%, the potassium dihydrogen phosphate of mass percent 0.2% and the medicine that is made into of the urea of mass percent 2%, percent by volume 40% flolimat, percent by volume 40% dimethachlon or percent by volume 50% carbendazol wettable powder 1000 times of liquid fertile, 750kg/hm
2spraying;
D, in good time results: when 2/3 jiao, full field, fruit presents faint yellow, gather in the crops when main sequence major part angle fruit seed presents pitchy, want timely stacking after-ripening after withdrawal, threshing air dry beaten by stone roller;
E, residual membrane removal: after rape harvest, thoroughly remove field waste mulching film, recycling with artificial or machinery, protect the fields ecotope, for good working condition is created in second stubble crop growth;
Wherein, during described Spring maize seeding, fertilising is farmyard manure 5-8 ten thousand kg/hm before overlay film in spring
2or refined organic fertilizer 750-1200kg/hm
2, P amounted to by normal superphosphate
2o
5content 180-225kg/hm
2, slow-release nitrogen fertilizer amounts to purity nitrogen content 240-300kg/hm
2base-appling once, corn growth stage no longer topdresses;
Described ploughing deeply is deep ploughing 30-35cm;
The time of described Spring maize seeding is 10-15 day in April;
Described overlay film adopts wide cut to be the white mulch film of 120cm, thickness 0.01mm, whole ground afterwards with manually or machinery carry out full film double-furrow broadcast mode and carry out overlay film; Mulch film bandwidth 110cm when full film double-furrow covers, often take up the large ridge of bottom width 40cm, the micro-ridge of high 15-20cm and bottom width 70cm, high 10-15cm, be seed furrow in the middle of two ridges, film and intermembranously not interspace, mulch film is real by soil pressure in great Long joint, every the native waistband of the horizontal pressure of 200cm one, when sowing winter rape, micro-ridge is sowed 2 row, large ridge planting 3 row.
2. the implantation methods that winter rape no-tillage drought resisting in nonirrigated farmland according to claim 1 is cold-resistant, is characterized in that, described instant nitrogenousfertilizer is ammonium chloride, carbonic hydroammonium, ammonium nitrate.
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| CN108651188A (en) * | 2018-03-30 | 2018-10-16 | 贾娟娟 | A kind of winter rape, sweet-waxy maizes crop rotation breeding method |
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