Summary of the invention
The present invention is directed to problems of the prior art, a kind of technical scheme of asparagus whole course covering, twice stem keeping and thrice picking cultivation method is provided, asparagus is long picking time, and output height, quality are good, remarkable in economical benefits.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method adopts greenhouse cultivation, and the asparagus single file field planting through growing seedlings after planting is characterized in that:
1) booth is omnidistance covers, late April to mid-November, the booth teleblem kept, the skirt film is pulled down all around, use fly net instead, late November, booth covered fully, late December plant withered and yellow after, carry out once clear completely garden, soil disinfection, and in booth, add a cover middle canopy, establish little shed in the middle canopy again, the back covering with plastic film of fully pouring water to mid-January in next year, temperature control in the booth: day temperature is 28~32 ℃ before bulbil is sprouted, the back day temperature of sprouting is 20~25 ℃, airtight insulation at night, and temperature is not less than 5C;
2) the female stem of secondary stays foster and adopts bamboo shoot three times, pluck spring bamboo 1~March, carry out garden, soil disinfection clearly at the beginning of 4 months by the end of March earlier, select diameter to make spring stubble greater than the solid stem of 1cm, pluck the summer bamboo shoot 5~August, late August is removed withered and yellow spring stubble, thoroughly clear garden, sterilization, and September, early and middle ten days began to stay autumn stubble, require more than the thick 0.8cm of stem, more than the high 1m, be evenly distributed, pluck the autumn bamboo shoot October;
3) rich water quality management, three base manure of heavy dressing before asparagus is gathered for three times, begin every 15~20 day impose compoiste fertilizer in late May bamboo shoot picking time in summer, autumn stubble stay support after, looking the plant growing way topdresses, middle and later periods according to the wet degree of doing of soil, adopts drip irrigation system to pour water every foliage fertilizer of spray in 7~10 days;
4) extermination of disease and insect pest, on the basis of three clear gardens, soil disinfection, adopting takes shelter from rain stays foster mother's stem, the female stem of spraying to prevent and treat disease, adopts desinsection lamp, property to lure device to catch and kill insect.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, it is characterized in that in the spring, two seasons of autumn are carried out seeding and seedling raising, in vegetable garden soil: ridge chaff ash: the ratio mixing of the fertilizer that becomes thoroughly decomposed=7: 3: 1, sieve, add 0.1% Nitrogen, Phosphorus and Potassium and carbendazim again and mix thoroughly, cover banked up 1 month after, the nutritive cube of packing into is standby, basked seeds 2~3 days in sunny weather, vernalization under 25~30 ℃ of conditions keeps the moistening and ventilation of seed, treat to sow after 10% seed shows money or valuables one carries unintentionally, seed of every alms bowl in the nutritive cube, with sterilization nutrition earth mulch seed, the lid seed degree of depth is no more than 1cm, after planting add and take little shed, cover film, seedbed keep moistening, and temperature keeps 25~30 ℃.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, it is characterized in that in the booth of building, flatten after soil ploughed deeply 30cm, the standard canopy is executed become thoroughly decomposed fertilizer 1000~1500kg, bedding again, open the field planting ditch, the asparagus single file field planting that to grow seedlings through 5~6 months, line-spacing 1.5~1.8m, spacing in the rows 25~30cm, water thin night soil after the field planting, again earthing 3~4cm.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method when it is characterized in that the canopy temperature surpasses 35 ℃ during the epiphragma, carries out aeration-cooling; When outside air temperature is lower than-2 ℃, add a cover nonwoven, sunshade net on the middle canopy.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, it is characterized in that female stem stays the initial stage of supporting that fine day more than 5 days should be arranged, spring stubble stays stem quantity: biennial asparagus stays 2~3, life in 3 years is stayed 3~4, stay 5~6 more than 4 years, pinch piling backguy built during 1~1.5 meter of plant height; Autumn stubble stays stem quantity: Zhong Zhi every strain is then stayed 10~15, and the every strain more than 2 years is stayed 20~30.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, thoroughly remove diseased plant, residual branch, weeds when it is characterized in that clearly the garden, to wipe out disease, residual, withered stem branch when staying foster mother's stem, and water by the blue or green 600 times of liquid of 2Kg/ mu 40% asparagus and to spill, to disinfecting soil; Before autumn stubble stays and supports, take off around the opening quotation 2~3 centimetres in soil, shone soil 1~2 day, then with hundred can get, tpn or asparagus is blue or green sterilizes.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, it is characterized in that asparagus gather for three times before three base manure of heavy dressing be respectively: ditch spread for the first time become thoroughly decomposed fertilizer 1000Kg/ mu, Nitrogen, Phosphorus and Potassium 30Kg/ mu; Ditch spread for the second time become thoroughly decomposed fertilizer 1000Kg/ mu, composite fertilizer 15Kg/ mu; Execute the fertile 3000Kg/ mu in the hurdle that becomes thoroughly decomposed, composite fertilizer 30Kg/ mu for the third time.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, it is characterized in that adopting the booth teleblem to cover to take shelter from rain and stay foster mother's stem, grow to 5cm at female stem and spray female stem pesticide control disease, promptly make every effort to overcome 50 times of suspending agents or 50 times of stem brush of 10% generation high-moisture shot agent well with 43%, or, use sponge dipping with 40% asparagus green grass or young crops 50,5000 times of liquid of 1,000 ten thousand unit agricultural streptomycins extraordinarily, smear young stem by strain from bottom to top, 1 time every other day, totally 3~4 times.
Described asparagus whole course covering, twice stem keeping and thrice picking cultivation method, it is characterized in that adopting the booth teleblem to cover to take shelter from rain and stay foster mother's stem, female stem branch phase sprays female stem pesticide control disease, promptly make every effort to overcome 1500 times of 5000 times of suspending agents, 10% generation high-moisture shot agent, hundred well and can get extraordinarily 5000 times of liquid sprays of 1,000 ten thousand unit agricultural streptomycins stem branch of 1500~3000 times of liquid or 40% asparagus green grass or young crops 200~300 with 43%, 2~3 days 1 time, connect and spray 3~4 times.
The applicant is from the Glan moral F of external introduction of plant
1(Grande), Atlas F
1(Atlas), Apollo F
1(Apollo) etc. be comparatively ideal asparagus first-filial generation breeding, progressively substitute UC800 and UC157F
2Deng the asparagus kind.Glan moral F
1Tall and big Deng asparagus kind plant, disease resistance is strong, the bamboo shoot stem is sturdy, the output height, product are of fine quality, to the 30cm height head that still do not loose, greenhouse cultivation is profitable at 30 ℃ of durations of temperature.
Above-mentioned asparagus whole course covering, twice stem keeping and thrice picking cultivation method, late April to mid-November, the booth teleblem kept, the skirt film is pulled down all around, use fly net instead, late November booth cover fully, adopt spring bamboo in 1~March of next year, mid or late April is stayed spring stubble, adopt the summer bamboo shoot 5~August, September, early and middle ten days stayed autumn stubble, adopted the autumn bamboo shoot October.Asparagus is long picking time, can adopt bamboo shoot every year three times, has realized substantially producing in the asparagus anniversary, and about 2400 kilograms/mu of average yield increases production more than 30% than conventional outdoor cropping; By measures such as the omnidistance covering of booth, the retain the stubble of taking shelter from rain, fly net isolation, having reduced damage by disease and insect such as stem wilt, prodenia litura takes place, and has reduced pesticide dosage, and asparagus pollutes less, quality better.
Embodiment
Now the present invention is described in further detail according to embodiment.
One, the plot is selected
The selection irrigation and drainage are convenient, the deep sandy soil field piece of soil layer is built booth, and booth north and south prolongs, and the wide 6~8m of canopy rises 2.2~2.8m, and about shoulder height 1.5m, length is decided on the field piece, builds the canopy material and can adopt materials such as bamboo wood, steel pipe.
Two, grow seedlings
Spring, autumns two Ji Douke seeding and seedling raising, at southern area, as Hangzhou, general row is sowed in spring.In vegetable garden soil: ridge chaff ash: the ratio mixing of the fertilizer that becomes thoroughly decomposed=7: 3: 1, sieve, add 0.1% Nitrogen, Phosphorus and Potassium and carbendazim again and mix thoroughly, cover banked up 1 month after, the nutritive cube of can packing into is standby.The sowing in spring was basked seeds 2~3 days in sunny weather in late Febuary, and vernalization under 25~30 ℃ of conditions often keeps the moistening and ventilation of seed.Treat to sow after 10% seed shows money or valuables one carries unintentionally, seed of every alms bowl in the nutritive cube, with sterilization nutrition earth mulch seed, the lid seed degree of depth is no more than 1cm.After planting add and take little shed, cover film, it is moistening that the seedbed keeps, and temperature keeps 25~30 ℃.
Three, field planting
The asparagus of growing seedlings was through 5~6 months growth, and fleshy root is thick and many, but with regard to field planting.Grow seedlings to the protection in early spring, can be in the late August field planting; Open country is grown seedlings in the early October field planting; Grow seedlings summer and autumn, can be in field planting in spring in next year.
Flatten after soil ploughed deeply 30cm, (field planting ditch (trench digging is too not dark for the first time) is opened in 30m * 6m) execute the fertilizer 1000~1500kg that becomes thoroughly decomposed, bedding again to every standard canopy.Select above, the several healthy seedling field planting more than 4 of stem of high 20cm, spacing in the rows 30cm waters thin night soil after the field planting, again earthing 3~4cm.
The suitable single file plantation of asparagus, according to the booth span, general 6m canopy kind four furrow, line-spacing 1.5m, spacing in the rows 30cm; The 8m canopy is then planted five furrow, line-spacing 1.6m, and spacing in the rows 25~30cm, every furrow asparagus is laid a dropper band.
Four, field management
1, booth is omnidistance covers
Late April to mid-November, the booth teleblem kept, and the skirt film is pulled down all around, uses fly net instead, late November, booth covered fully, late December plant withered and yellow after, carry out once clear completely garden, soil disinfection, and in booth, add a cover middle canopy, middle canopy is established little shed again, the back covering with plastic film of fully pouring water to mid-January in next year, the temperature control in the booth: day temperature is 28~32 ℃ bulbil is sprouted before, sprouting afterwards, day temperature is 20~25 ℃, airtight insulation at night, temperature is not less than 5C.Summer and autumn, the booth top film kept, and skirt film is all around pulled down, and uses fly net instead, when the canopy temperature surpasses 35 ℃ during the epiphragma, carried out aeration-cooling; When temperature is lower than-2 ℃, add a cover nonwoven on the middle canopy, the sunshade net carries out anti-freezing and heat-insulating, and can isolate rainwater, insect, reduce damage by disease and insect such as stem wilt, prodenia litura effectively and take place.
Rainwater is the main factor of bringing out the asparagus stem wilt, booth is omnidistance cover asparagus is produced very favourable, the at first asparagus growth of taking shelter from rain, the generation that alleviates the asparagus disease reduces the consumption of agricultural chemicals, reach asparagus pollution-free, do not have agricultural residual; The second, but the omnidistance heat-insulation and heat-preservation that covers, in the summer of high temperature sweltering heat, because of being stamped teleblem, ventilation all around, temperature of shed is relatively low, helps the asparagus normal growth; The 3rd, late November booth begin epiphragma insulation, can prolong the vegetative period of asparagus terrestrial stem strain, increase the nutrient accumulation of subterranean stem dish; The 4th, winter, epiphragma can make asparagus early adopt, and the realization spring bamboo winter is adopted increasing both production and income; The 5th, the omnidistance covering in conjunction with fly net and drip irrigation technique, favourable asparagus robust growth reduces pest damage, fundamentally solves asparagus residue of pesticide problem, realizes the asparagus quality safety, and is high-quality and efficient.
2, the female stem of secondary stays foster and adopts bamboo shoot three times
Pluck spring bamboo 1~March, carry out garden, soil disinfection clearly at the beginning of 4 months by the end of March earlier, select diameter to make spring stubble greater than the solid stem of 1cm, pluck the summer bamboo shoot 5~August, late August is removed withered and yellow spring stubble, thoroughly clear garden, sterilization, September, early and middle ten days began to stay autumn stubble, required more than the thick 0.8cm of stem, more than the high 1m, be evenly distributed, pluck the autumn bamboo shoot October.Female stem stays the initial stage of supporting that fine day more than 5 days should be arranged, and spring stubble stays stem quantity: biennial asparagus stays 2~3, and life in 3 years is stayed 3~4, stays 5~6 more than 4 years, and what a dish was big can suitably stay more, pinches piling backguy built during 1~1.5 meter of plant height; Autumn stubble stays stem quantity: Zhong Zhi every strain is then stayed 10~15, and the every strain more than 2 years is stayed 20~30.
Field planting keeps tender stem then as far as possible, leaves and takes 2~3 for every section, to preferably making female stem stem stalk reach 8~10 by the end of October, more than the long 70cm of root.Bamboo shoot are adopted on retain the stubble limit, limit at the beginning of general 4 months by the end of March next year and at the beginning of 8 months by the end of July, stop to adopt bamboo shoot September, concentrate and stay foster mother's stem, and for preventing female stem lodging, the most handy iron wire built is reinforced.
3, rich water quality management
Three base manure of heavy dressing before asparagus is gathered for three times, booth asparagus are at general spraying fertilizer not Winter-Spring bamboo shoot picking time, the summer bamboo shoot begin early stage every 20 days in late May picking time, the later stage imposes compoiste fertilizer 30Kg/ mu every about 15 days; Autumn stubble stay support after, look the plant growing way and topdress, the middle and later periods is every foliage fertilizer of spray in 7~10 days,, prolong the plant greenery phase, improve photosynthetic usefulness.Three base manure of heavy dressing were respectively before asparagus was gathered for three times: ditch spread for the first time become thoroughly decomposed fertilizer 1000Kg/ mu, Nitrogen, Phosphorus and Potassium 30Kg/ mu; Ditch spread for the second time become thoroughly decomposed fertilizer 1000Kg/ mu, composite fertilizer 15Kg/ mu; Execute the fertile 3000Kg/ mu in the hurdle that becomes thoroughly decomposed, composite fertilizer 30Kg/ mu for the third time.
And, adopt drip irrigation system to pour water according to the wet degree of doing of soil, it is too high to exempt to cross humidity in the canopy, reduces asparagus disease incidence, utilizes drip irrigation system can carry out rich water with irritating.
4, the extermination of disease and insect pest
Three clear gardens, soil disinfections, take shelter from rain and stay on the basis of foster mother's stem, emphasis grows to 5cm and female stem branch phase spraying pesticide control disease at female stem.
Thoroughly remove diseased plant, residual branch, weeds during clear garden, will wipe out disease, residual, withered stem branch when staying foster mother's stem, and water by the blue or green 600 times of liquid of 2Kg/ mu 40% asparagus and to spill, to disinfecting soil; Before autumn stubble stays and supports, take off around the opening quotation 2~3 centimetres in soil, shone soil 1~2 day, then with hundred can get, tpn, asparagus is blue or green sterilizes.
Female stem grows to 5cm, makes every effort to overcome 50 times of suspending agents or 50 times of stem brush of 10% generation high-moisture shot agent well with 43%, or with 40% asparagus green grass or young crops 50,5000 times of liquid of 1,000 ten thousand unit agricultural streptomycins extraordinarily, use sponge dipping, smear young stem by strain from bottom to top, 1 time every other day, totally 3~4 times.Behind female stem branch with 43% make every effort to overcome well 1500 times of 5000 times of suspending agents, 10% generation high-moisture shot agent, hundred can get 1500~3000 times of liquid or 40% asparagus green grass or young crops 200~300 extraordinarily 5000 times of liquid of 1,000 ten thousand unit agricultural streptomycins spray the stem branch, 2~3 days 1 time, connect and spray 3~4 times.Female stem 10~15 days 1 time spray of backsight concrete condition stem branch that stops growing is adopted during the bamboo shoot not pesticide.
Adopt desinsection lamp, property to lure device to catch and kill insect: generally adopt the suspension type frequency ventilating type insecticidal lamp, the pendant lamp height is advisable with 1.6~1.7m, and annual April, every day, 20:00 turned on light to the pendant lamp in October, and morning, 4:00 turned off the light, 2~4 hectares of every controlled areas; The property lure device convenient, cost is low, but the trapping pests kind is single, generally is used to trap noctuid, every mu is provided with 5.
Also can carry out disease control by spraying insecticide:
Prodenia litura: eliminate 1500 times of suspending agents or 1000 times of controls of 2.5% dish happiness suspending agent with 3500 times of 15% safety hit missible oil, 10%.
Aphid, thrips: with 30000 times of 2500~3000 times of 10% imidacloprid wettable powders, the happy water dispersible granules of 70% Amy or 3% not than 1500 times of controls of bright missible oil.
Cutworm: with 3000 times of 5% Blockbuster missible oil or 1000~1500 times of controls of the happy missible oil of 52.25% farmland.
Five, gather
Remove with hand-lifting when tender stem grows the about 20~30cm in ground, gather every day each 1 time sooner or later, the time was good with the morning 10 up at 4 o'clock in afternoon.The rearmounted shady and cool place, back that gathers, size classification is tied up, and every 100 grams are placed on and cover clean wet cloth in the large bamboo or wicker basket, in time sells.2~5 ℃ of temperature, under the condition of relative moisture 90~95% freshness-retained 4~5 days.