CN103947430A - Novel water-saving mixed lawn cultivating method - Google Patents
Novel water-saving mixed lawn cultivating method Download PDFInfo
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Abstract
The invention provides a novel water-saving mixed lawn cultivating method. According to the novel water-saving mixed lawn cultivating method, prairie grass Agropyron desertorum is introduced to a lawn for the first time, two native grass seeds are sown in a mixed way for the first time, the mixed sowing time takes place in cold and warm seasons, the mixed sowing ratio is scientific, layered sowing is adopted, the sowing depths are different, different covering materials are used for controlling the germinating temperature, the rolling strength is different, the watering times and the watering time are controlled, and sand is supplemented in time for rolling, so that synchronous germination of grass seeds in a mixed lawn is ensured and seedlings grow until various conditions required by a finished lawn are met. Through field preparation before lawn building, a fine sowing method, germination management, seedling conservation and finished lawn conservation and other steps, the novel water-saving mixed lawn cultivating method having the advantages that the difficulties that imported grass seeds are high in purchase cost, high in water consumption and high in conservation cost are overcome, the problems that a simple warm-season native grass seed is short in greening period, affects the greening effect and is difficult to popularize are solved is provided by the invention.
Description
Technical field
The present invention relates to the cultivation technology of the husky raw wheatgrass mixed seeding floor space of a kind of utmost point drought resisting lawn warm season Korea lawn grass and cold season, the particularly afforestation large area establishment methods on a kind of applicable northern China Temperate Region in China low-maintenance, drought resisting lawn.
Background technology
Korea lawn grass (Zoysia japonica) is turf grass species of one's native land, has large-area wild distribution in Liaodong Peninsula and the Shandong Peninsula of China.Its suitable growth temperature is 26～32 DEG C, there is flourishing stolon and root-like stock, have that strong adaptability, growing way are vigorous, the feature such as happiness light, drought resisting (lower by 40% than annual bluegrass water consumption), disease and insect resistance, resistance to trample, Salt And Alkali Tolerance, heat resistanceheat resistant and impoverishment tolerant, widely utilizing on the sports ground such as golf course and football pitch, ground, opening lawn, water and soil conservation ground, is a kind of universally acknowledged good turfgrass.But because Korea lawn grass is warm season turf, the green phase at northern area is shorter, limited this grass applying in urban afforestation and sports ground, and that urban afforestation and sports turf account for the proportion of whole green grassland is very large, the Research Significance that therefore extends the green phase of lawn is great.
Husky raw wheatgrass (Agropyron dsertorum) is the raw forage grass of typical grassland type drought, distributed more widely in China northeast and North China.Its suitable growth temperature is 15～25 DEG C, there is flourishing root system and root-like stock, extremely strong drought resisting (lower by 80% than annual bluegrass water consumption), cold-resistant, resistance to trample and fix the sand ability, wheatgrass has very strong aggressiveness, the local weeds of its plantation are few, planting success almost do not have damage by disease and insect, has indomitable survival ability and perfect self-recovery mechanism, as long as just can be multiplied and lived for a long time.At present, no matter abroad, still at home, to the utilization of Wheatgrass mostly in the utilization of extensive plantation and excellent genes, the research of carrying out large area seeding lawn establishment about the grass seeds using it as green grassland there is not yet report, and its main cause is that wheatgrass is that thin clump type and leaves density are less, sets it as simple lawn coverage lower, affect afforestation effect, wild wheatgrass also occurs mainly as companion species in sand ground vegetation.
In northern China Temperate Region in China, no matter be simple cold-season type lawn or warm-season turf, the performance in afforestation is all unsatisfactory.There is the green phase short for warm season, the problem that is difficult for surviving the winter; There is maintenance costs high for cold season, withered dormancy of summer, even degeneration and death phenomenon, this is the problem that current lawn science is inquired into always and wish solves.How by cold season and the reasonably combined mixed seeding that carries out of warm season grass seeds, the difference that makes up mutually the season of growth is to solve withered, winter issue of summer, green phase of lawn is extended, maintenance costs reduces, and become focus and the difficult point of Future in China Development of Turf technical research.
Have in the normal method adopting of northern Gardener author: (1) submit and broadcast perennial ryegrass at Zoysia Japonica Turf, but because perennial ryegrass is in the north particularly areas of Shenyang can not survive the winter (below 15 DEG C dead), can only take all will hand over and broadcast every year, expense is higher and larger to Zoysia Japonica Turf injury; (2) adopt kentucky blue grass, Festuca Arundinacea or chewing fescue and its mixed seeding, although can survive the winter, but because these three kinds of turfgrasss do not have flourishing stolon and root-like stock, through competition and the succession of 2-3, finally all degenerate and become simple lawn (the local succession that illumination is good is simple Zoysia Japonica Turf, and the poor local succession of illumination is simple cold-season type lawn); (3) the bent grass stolon prosperity although crawl, various resistances and the ability of occupying are far below Korea lawn grass, and its mixed effect finally also comes to an end to develop into simple Zoysia Japonica Turf.Still there are many drawbacks in visible existing cold season and warm season turf mixed seeding floor space, does not even finally reach the due effect of mixed lawn.
The grass seeds that the husky raw wheatgrass of cold season grassland herbage of green phase length, root system and root-like stock prosperity, low-maintenance is introduced as to green grassland, has important practical significance with Korea lawn grass mixed seeding floor space.The mixed lawn of the two formation meets compatible principle and the biological property consistency principle of mixed lawn, can have complementary advantages, changes in temperature season smooth transition, be connected nature, reach the effect of four seasons balance, thereby can form lasting mixed lawn.The good characteristics such as the simultaneously total drought resistance of these two kinds of grass, disease resistance, resistance to trample, make the mixed lawn of planting be suitable for low level management, and maintenance costs obviously reduces.Can be used as and view and admire lawn, the lawn of strolling about or have a rest, sports turf, slope protecting grassplot, lawn, isolation strip, airport and land reclamation in mining area lawn and extensive use.
Need higher technology but how can successfully the two be carried out to mixed seeding floor space, its difficult point is: 1. Agropyron seeds is larger, and thousand kernel weight is 2.33g, and zoysia japonica seed is less, and thousand kernel weight is 0.33g, the two clean culture seeding quantity and sowing depth difference; 2. the two suitable germination temperature area requirement difference.The suitable germination temperature of wheatgrass is 20-30 DEG C, and optimum temperature is 25 DEG C, and the suitable germination temperature of Korea lawn grass is 26-35 DEG C, and optimum temperature is 30 DEG C; 3. during Korea lawn grass germination and growth of seedling, need sufficient illumination, husky raw wheatgrass duration of germination requires not tight to illumination, but seedling growth stage also needs sufficient illumination; 4. Zoysia is in stolon type, in wild vegetational type, occur as constructive species, husky raw wheatgrass belongs to the clump rhizome type of dredging, in steppe vegetation group, how to occur as companion species, sometimes rugged environment condition gradually succession be sociales, the mixed seeding ratio of the two to population foundation with become level ground effect to play a crucial role; 5. the two growth of seedling is all very slow, and seedling management requires comparatively strict.Therefore, need to make the two germination simultaneously, synchronous growth, illumination distribute and suitably could form mixed lawn comparatively uniformly.The mixed lawn of the two meets from now on the main flow direction of Development of Turf-select water-saving drought resisting turf grass species, solves and introduces a fine variety first the husky raw wheatgrass of pasture herbage as level ground grass seeds and apply significant with the technological difficulties of Korea lawn grass mixed seeding floor space to the mixed lawn of the two.
Summary of the invention
In order to address the above problem, the invention provides a kind of breeding method of quoting the husky raw wheatgrass of grassland grass seeds and Korea lawn grass mixed seeding floor space.Utilize China to have ecological area widely, herbaceous plant is of a great variety, seed resource is abundant advantage, the present invention quotes first two kinds of Local grass-seed and carries out mixed seeding floor space.These two kinds of grass seeds have the wild distribution of large area at northern area, be applicable to very much local weather conditions, mixed seeding more than 3 years is put into practice floor space and is proved: the mixed lawn of the two had both extended the green phase on lawn, has again the superiority of the incomparable drought resisting of other mixed lawn (mixed seeding or import grass seeds and Local grass-seed mixed seeding between import grass seeds), disease and insect resistance, impoverishment tolerant, low-maintenance etc.For the level ground of China's wild herb resource is with having started precedent, for the selection of mixed seeding grass seeds in the greening of large area garden lawn provides a new direction.
The technical solution used in the present invention is: a kind of breeding method of novel water-saving mixed lawn is as follows:
1) preparation in the front place of floor space:
1.1) soil melioration: making bed top layer, the level ground 30-35cm soil texture is sandy loam;
1.2) regulate soil pH value: make pH value scope at 5.5-7.5;
1.3) water end water: water one time permeable, the wet soil of itself and deep layer is joined.
2) floor space operation:
2.1) the floor space time: May, as minimum air temperature 15-20 DEG C, sowing maximum air temperature 25-30 DEG C time;
2.2) fertilising: apply two ammonium fertilizer and potassium dihydrogen phosphate fertilizer in bed surface, level ground; Preferably, fertilizing amount is: two ammonium fertilizing amount 35-40g/m
2, potassium dihydrogen phosphate is 10-15g/m
2;
2.3) the husky raw wheatgrass of sowing: the first raw wheatgrass of sowing sand, after planting, to suppress one time with the roller of 150-200kg, the more for subsequent use soil identical with former level ground bed is carried out to earthing with the sieve of aperture 4-5mm, thickness is 2-2.5cm;
2.4) sowing Korea lawn grass: and then sowing Korea lawn grass, after planting, press one time with the lawn roller of 50-100kg is light, then cover sand, thickness 0.5-0.8cm with the sieve of aperture 4-5mm;
Preferably, the sowing ratio of husky raw wheatgrass and Korea lawn grass is: the seeding quantity of husky raw wheatgrass is 18-20g/m
2, the seeding quantity of Korea lawn grass is 15-18g/m
2;
2.5) last light the pressure one time of roller of using again 50-100kg.
3) management of germination period
3.1) water: respectively water one time every day sooner or later, make the soil of top layer 5cm left and right remain moistening;
3.2) mend husky and suppression: husky and suppression, because the reason such as water causes the sand disappearance exposed place of seed, is covered in time in bed surface, duration of germination level ground.
4) management in seedling stage
Cut weeds, keep level ground bed surface wettability, that is, remain that topsoil 2-5cm is moistening.
5) become level ground management
5.1) prune: in the time that lawn height reaches 5-6cm, prune first stubble height 3-4cm;
5.2) water and restrain the growth of seedlings;
5.3) cover sand: at northern area, when the maximum air temperature is 14-16 DEG C, when the minimum air temperature is 4-6 DEG C, Zoysia Japonica Turf enters resting stage completely, need to cover sand once, and thickness is 0.5-0.8cm;
5.4) cut weeds: manually pull out the weeds in the bed of level ground in time.
5.5) spray paclobutrazol: after floor space First Year, annual at its optimum growh phase spray plant growth inhibitor paclobutrazol 1-2 time to dominant population, preferably, paclobutrazol liquid is that concentration is the aqueous solution of 330-350mg/kg, and every square metre sprays liquid 35-40 gram.
The invention has the beneficial effects as follows:
1. for the selection of lawn greening mixed seeding grass seeds provides a new direction: quote first pasture herbage as level ground grass seeds and the success of Korea lawn grass mixed seeding floor space, for the selection of mixed seeding grass seeds in large area garden lawn greening from now on provides a new direction.
2. maintenance management cost obviously reduces: adopt first two kinds of Local grass-seed to carry out mixed seeding, Local grass-seed adapts to local weather and soil condition very much, shows extremely strong vitality, and very suitable low level management, therefore greatly reduces maintenance costs.
3. extended the green phase on lawn: Korea lawn grass is warm season grass seeds, in the north the green phase shorter, turn green at the beginning of 5 months in Shenyang, dormancy at the beginning of 10 months, husky raw wheatgrass is cold season grass seeds, turn green at the beginning of 4 months in Shenyang, dormancy at the beginning of 11 months.The green phase on lawn has been extended the time of nearly 2 months by the introducing of husky raw wheatgrass.
4. save a large amount of water resource: this all very drought resisting of two kinds, husky raw wheatgrass can need not be watered within annual precipitation 230mm whole breeding time, and Korea lawn grass just can meet growth demand at annual precipitation 500-600mm dependence natural rainfall.Therefore substantially need not water in the lawn after Cheng Ping within breeding time, saved a large amount of water resources.
5. establishment methods has met the different temperature requirements of the two duration of germination, is beneficial to seed germination: the suitable germination temperature of husky raw wheatgrass is 20-30 DEG C, and optimum temperature is 25 DEG C, and the suitable germination temperature of Korea lawn grass is 26-35 DEG C, and optimum temperature is 30 DEG C.Sowing in batches, layered coverage, husky raw wheatgrass is sowed in deep layer, with soil covering, heats up slower, and Seed Layer temperature is lower; Korea lawn grass is sowed on top layer, with sand covering, heats up very fast, and Seed Layer temperature is higher.Thereby meet the different temperature requirement of the two duration of germination, be beneficial to seed sprouting.
6. can form lasting mixed lawn: husky raw wheatgrass has flourishing root system and root-like stock, Korea lawn grass has flourishing stolon and root-like stock, the two equal sprawl growth, occupy very competent, and there are indomitable survival ability and perfect self-recovery mechanism, and the maintenance management level of the two requires identical, it is extensive low-maintenance management, simultaneously the plant growth inhibitor by high concentration use the growth of controlling dominant population in the two mixed lawn, in addition prune the control to lawn height, just can form lasting mixed lawn uniformly.
7. a series of adverse effects of having avoided import grass seeds to bring: almost entirely lean on import for the cold season grass seeds of green grassland at present, China needs approximately 3000 tons of left and right of import turf grass species every year at present according to statistics, consumes foreign exchange millions of dollar.Exogenous grass seeds itself is just with and is served problem simultaneously, as needed, water is many, the expense of managing and protecting is high, be difficult for surviving, easily degenerate etc., and according to statistics, Beijing water requirement of all lawns pourings exceedes 400,000,000 tons.Northern area drought, winter cold, very unfavorable to the growth on lawn, maintenance cost is higher, the sustainable development that the lawn of sening as an envoy to is propped up in high water consumption and huge maintenance is restricted.The success of the Local grass-seed mixed seeding floor space of two kinds of applicable local climates, has avoided the impact of above-mentioned all unfavorable factors, and the not only easy maintenance of water-saving, and have level ground grass seeds due function, to saving foreign exchange, improve environment and have practicable significance.
Embodiment
The breeding method of a kind of novel water-saving mixed lawn of embodiment
One, the preparation in the front place of floor space:
1, remove foreign material: remove the foreign material such as the visible tree root in top layer, place and stone.
2, soil melioration: mix husky way by clay, making bed top layer, the level ground 30-35cm soil texture is sandy loam or loam, wherein sandy loam the best.
3, regulate soil pH value: make its pH value scope at 5.5-7.5.Acid ground adds the way that limestone powder (Paris white), basic soil add gypsum and regulates.
4, soil cultivation: tilth 30-35cm, carries out in conjunction with soil melioration and adjusting soil pH value operation, can reduce like this agitating procedure.
5, place moulding: require moulding according to construction drawing.
6, thick whole ground and cleaning foreign material: the flat rake of artificial employing is hugged ground, removes the deep layer stone and other foreign material that expose after soil cultivation.
7, water end water: water one time permeable, the wet soil of itself and deep layer is joined, clods breaking while being conducive to the sedimentation of new anthropogenic soil and the thin moulding of lower step.
8, thin moulding: make full use of and water the soil moisture content that end water forms, artificial carry out local meticulous moulding when the humidity of bed top layer, level ground with flat rake, require " breaking up the clods, remove stone, local sculpt ", standard is " little flat large uneven ", and whole level ground bed has the gradient but can not occur local concave and convex phenomenon.
Two, floor space operation:
1, floor space time: the husky raw wheatgrass floor space time can be at spring and autumn, but the two mixed seeding floor space, can only be in spring and floor space in the fall at northern area, the little death of seedling of surviving the winter of no person Korea lawn grass.As minimum air temperature 15-20 DEG C, sowing maximum air temperature 25-30 DEG C time, areas of Shenyang late May is best sowing time.
2, fertilising: two ammonium fertilizing amount 35-40g/m
2, potassium dihydrogen phosphate 10-15g/m
2, adopt fertilizer distributor uniform of application in bed surface, level ground.
3, the husky raw wheatgrass of sowing: the husky raw wheatgrass of first sowing, seeding quantity is 18-20g/m
2, carry out evenly after planting with sower, suppress one time with the roller of 150-200kg, for subsequent use soil identical with former level ground bed is carried out to earthing with the sieve of aperture 4-5mm, thickness is 2-2.5cm.
4, sowing Korea lawn grass: then sow Korea lawn grass, seeding quantity is 15-18g/m
2, carry out evenly after planting with sower, with light the pressure one time of lawn roller of 50-100kg, cover sand, thickness 0.5-0.8cm with the sieve of aperture 4-5mm.
5, suppression: the left back roller with 50-100kg is gently pressed a time again.
Three, the management of germination period
1, water: adopt the good shower nozzle of atomizing effect to water, respectively water one time every day sooner or later, makes the soil of top layer 5cm remain moistening.Can not water noon, is beneficial to the intensification of soil species sublayer and germinates.
2, mend husky and suppression: bed surface, duration of germination level ground is because the reason such as water causes the sand disappearance exposed place of seed to cover in time husky and suppression.
Four, the management in seedling stage
1, the standard that seedling all sprouts: after planting 15-20 days, upper every square centimeter of level ground bed goes out 1-2 seedling, and seedling grows to 1-2 sheet leaflet.
2, cut weeds: Korea lawn grass and husky raw wheatgrass Growth of Seedling be very slow and happiness light all, and more weeds jeopardize the success of its floor space.Therefore need often manually to pull out.
3, water: seedling stage, the root system of the two was more shallow, topsoil 2-5cm will water when arid in time.
Five, become level ground management
1, prune: suitable pruning is to maintain the lasting greatest factor of mixed lawn.In the time that lawn height reaches 5-6cm, prune first, stubble height 3-4cm, like this for the growth on low layer lawn provides sufficient illumination.These two kinds of equal sprawl growths of grass, therefore prune frequency lower, monthly prune once, and be highly 4-5cm, sports ground is according to functional requirement maintenance cutting range and pruning frequency.
2, water and restrain the growth of seedlings: in order to promote the growth of lawn root system, needing suitably the processing of restraining the growth of seedlings of raw seedling then, when upper soll layer 5cm occurs that dry ground or lawn part blade tip start when curling to water below again.The mixed lawn daily management of planting then needs suitably to supplement soil moisture, generally within 15-20 days, waters one time.After Second Year, substantially need not water whole vegetative period at northern area.
3, cover sand: at northern area; when the maximum air temperature is 14-16 DEG C; when the minimum air temperature is 4-6 DEG C; Zoysia Japonica Turf enters resting stage completely; need to cover sand once, thickness is 0.5-0.8cm, to protect Korea lawn grass stolon and husky raw wheatgrass is rhizomatic survives the winter smoothly; simultaneously due to sand quick heating, thereby be conducive to the continued growth of husky raw wheatgrass.After Second Year, no longer cover sand.
4, cut weeds: the mixed lawn of planting then reached before 100% in cover degree, have some weeds and occur, should manually pull out in time the weeds in the bed of level ground.Competitive ability due to the two after Second Year is all quite strong, there is no weeds.
5, spray paclobutrazol: after floor space First Year, in the time that wheatgrass occupies superiority in mixed lawn, spring or autumn wheatgrass the suitable growth period spray paclobutrazol 1-2 time; In the time that Korea lawn grass occupies superiority in mixed lawn, summer Korea lawn grass the suitable growth period spray paclobutrazol 1-2 time.Paclobutrazol liquid is that concentration is the aqueous solution of 330-350mg/kg, and every square metre sprays liquid 35-40 gram.Thereby suppress the growth of advantage grass seeds, eliminate its superiority, keep the two advantage equalization, form evenly lasting mixed lawn.
Application examples 1
Adopt said method, plant the mixed lawn of more than 3000 square metre in the Entertainment Plaza of the new school district of Liaoning University, after 3 years, in lawn, two kinds of grass seeds still respectively account for approximately 50%, form good mixed lawn, extend the green phase on lawn, the green phase of lawn reaches more than 210 day, both for university student and teacher provide the place of strolling about or have a rest, again for afforestation design has increased beautiful scenery one, although it is comparatively frequent that teachers and students walk in the above or have a rest, lawn has shown indomitable vitality.
Application examples 2
Adopt said method, Entertainment Plaza in park, somewhere, Shenyang carries out establishing in large scale, and after 2 years, lawn growing way is vigorous, two kinds of grass seeds advantage equalizations, form good mixed lawn, extended the green phase on lawn, the green phase of lawn is April-November, even if people walk in the above, or have a rest, lawn has shown indomitable vitality, for having saved a large amount of administrative expenses in park.
Application examples 3
Adopt said method, in the somewhere in Anshan, Entertainment Plaza carries out establishing in large scale, and after 3 years, Korea lawn grass is very good with husky raw wheatgrass combined effect performance, and group is uniform and stable, level ground face is neat, and the green phase reaches 220 days.Because people's motion rest equifrequent on lawn is higher, lawn part occurs damaged, but impaired turf restoring force is extremely strong, through the fencing lawn to impaired lawn of more than 20 days, has recovered again very soon original state.
Above-mentioned 3 Entertainment Plaza lawns are from the Second Year of planting, all do not carry out watering, fertilising, the control of damage by disease and insect and preventing and kill off of weeds, lawn Evaluation on Appearance Quality and service quality evaluation have all reached good level, for turf management has been saved a large amount of artificial and expenses.
Claims (5)
1. a breeding method for novel water-saving mixed lawn, is characterized in that method is as follows:
1) preparation in the front place of floor space:
1.1) soil melioration: making bed top layer, the level ground 30-35cm soil texture is sandy loam;
1.2) regulate soil pH value: make pH value scope at 5.5-7.5;
1.3) water end water: water one time permeable, the wet soil of itself and deep layer is joined;
2) floor space operation:
2.1) the floor space time: May, as minimum air temperature 15-20 DEG C, sowing maximum air temperature 25-30 DEG C time;
2.2) fertilising: apply two ammonium fertilizer and potassium dihydrogen phosphate fertilizer in bed surface, level ground;
2.3) the husky raw wheatgrass of sowing: the first raw wheatgrass of sowing sand, after planting, to suppress one time with the roller of 150-200kg, the more for subsequent use soil identical with former level ground bed is carried out to earthing with the sieve of aperture 4-5mm, thickness is 2-2.5cm;
2.4) sowing Korea lawn grass: and then sowing Korea lawn grass, after planting, press one time with the lawn roller of 50-100kg is light, then cover sand, thickness 0.5-0.8cm with the sieve of aperture 4-5mm;
2.5) last light the pressure one time of roller of using again 50-100kg;
3) management of germination period
3.1) water: respectively water one time every day sooner or later, make the soil of top layer 5cm left and right remain moistening;
3.2) mend husky and suppression: husky and suppression, because the reason such as water causes the sand disappearance exposed place of seed, is covered in time in bed surface, duration of germination level ground;
4) management in seedling stage
Cut weeds, and keep level ground bed surface wettability;
5) become level ground management
5.1) prune: in the time that lawn height reaches 5-6cm, prune first stubble height 3-4cm;
5.2) water and restrain the growth of seedlings;
5.3) cover sand: at northern area, when the maximum air temperature is 14-16 DEG C, when the minimum air temperature is 4-6 DEG C, Zoysia Japonica Turf enters resting stage completely, need to cover sand once, and thickness is 0.5-0.8cm;
5.4) cut weeds: manually pull out the weeds in the bed of level ground in time;
5.5) spray paclobutrazol.
2. the breeding method of a kind of novel water-saving mixed lawn as claimed in claim 1, is characterized in that: step 2.2) fertilising in, fertilizing amount is: two ammonium fertilizing amount 35-40g/m
2, potassium dihydrogen phosphate fertilizing amount 10-15g/m
2.
3. the breeding method of a kind of novel water-saving mixed lawn as claimed in claim 1, is characterized in that: in step 4) in the management in seedling stage, remain that topsoil 2-5cm is moistening.
4. the breeding method of a kind of novel water-saving mixed lawn as claimed in claim 1, is characterized in that: the sowing ratio of husky raw wheatgrass and Korea lawn grass is: the seeding quantity of husky raw wheatgrass is 18-20g/m
2, the seeding quantity of Korea lawn grass is 15-18g/m
2.
5. the breeding method of a kind of novel water-saving mixed lawn as claimed in claim 1, is characterized in that: in step 5.5) spray in paclobutrazol, described paclobutrazol liquid is that concentration is the aqueous solution of 330-350mg/kg, every square metre sprays liquid 35-40 gram.
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| CN104335806A (en) * | 2014-10-09 | 2015-02-11 | 辽宁大学 | Method suitable for winter sowing of zoysia japonica in northern area |
| CN104350927A (en) * | 2014-11-20 | 2015-02-18 | 扬州大学 | Cultivation method of Chinese cabbage on balcony |
| CN107646553A (en) * | 2017-09-22 | 2018-02-02 | 江苏农林职业技术学院 | A kind of method for making Result Fuse form smooth careless blanket |
| CN108934873A (en) * | 2018-07-27 | 2018-12-07 | 李洪军 | A kind of tuber of pinellia base of leaf of lying on one's side grows wild the implantation methods that bulbil expands |
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