CN102657056B - Downward-arrowhead-shaped tree shape of pear tree and shaping method for same - Google Patents
Downward-arrowhead-shaped tree shape of pear tree and shaping method for same Download PDFInfo
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Abstract
The invention belongs to the fields of fruit tree cultivation and fruit tree ecology, and discloses a shaping method for a downward-arrowhead-shaped tree shape of a pear tree. The tree shape has a tree height of 2.4-2.5 m, and a trunk height of 0.6-0.7 m, and only two main branches and one centre trunk of a first layer are reserved, therefore, the tree shape is called as the downward-arrowhead-shaped tree shape. The downward-arrowhead-shaped tree shape is small in top and large in bottom, the influence of upper branches on lower branches is less, and ventilation and light transmission conditions are good. The downward-arrowhead-shaped tree shape of a pear tree is an innovation based on the '3-plus-1' tree shape disclosed previously, which is simple in structure, convenient in culture, easy to grasp by fruit growers, convenient in field management, and easy to spread and popularize; and the tree shape is a novel high-quality and labour-saving cultivation tree shape of a pear tree.
Description
Technical field
The invention belongs to pomology, fruit tree field of ecology, relate to the tree-like and shaping methods of " individual " shape of a kind of pear tree.
Background technology
Tree-like is the basis of pear tree cultivation.Tree-like the mainly containing of China's pear tree cultivation evacuated layering shape, " Y " font, spindle etc., wherein, evacuate layering shape and be made of trunk and 6～8 major branches, be divided into three layers, its tree crown is tall and big, volume is large as a result, fruit yield is high, but field management is inconvenient, and ventilation and penetrating light is poor, damage by disease and insect occurs serious, and fruit quality is very different.For improving the pear tree illumination condition, China will evacuate in many pears producing region the coronule layering shape that layering shape is modified to 5～7 major branches, and its fruit quality is significantly improved, but this tree-like interlamellar spacing is little, after the full bearing period illumination poor, very easily concealment problem of tree crown is difficult to solve.For this reason, the applicant has invented pear tree " 3 add 1 " tree-like (patent No. ZL201010230570.1) through for many years research.This is tree-like compares with evacuating layering shape, has illumination condition abundance, advantage that fruit quality is good, is an important technological innovation of China's Pear trees shape.
Along with the aging of China's rural population, the pears industry requires day by day urgent to tree-like simplification shaping technique.The applicant is according to the reality of China's pear tree cultivation, tree-like in existing patent---on the tree-like basis of pear tree " 3 add 1 ", absorb Korea S without trunk " Y " word tree-like with China traditional the tree-like advantage of the many major branches of trunk arranged, carry out and simplify the shaping technique innovation, the pear tree that research and development only have 2 major branches and 1 center to do falls the novel tree-like and supporting technology of " individual " shape.With " 3 add 1 " tree-like comparing, pear tree falls that " individual " shape is tree-like again new progress technically, it is tree-like simpler to be mainly reflected in it, pruning is easier, the orchard worker is acceptant, being easier to apply, is tree-like in high-quality---a Labor-saving technological innovation on " 3 add 1 " tree-like basis.
Summary of the invention
The purpose of this invention is to provide a kind of novel pear tree high-quality, simplify tree-like---" individual " shape of falling is tree-like.
Another object of the present invention provides this tree-like shaping methods of " individual " shape.
Purpose of the present invention can be achieved through the following technical solutions:
Pear tree falls about 2.4～2.5 meters of the tree-like height of trees of " individual " shape, and trunk is high 0.6～0.7 meter, only keeps 2 major branches and 1 center is done, and therefore is referred to as down " individual " shape.The upper medium and small fruit-bearing shoot cluster that evenly is equipped with is done at the center, and wherein the distribution arrangement of medium-sized branch group stretches between strain, and is vertical with two major branch bearing of trends, and each major branch is equipped with 4～6.
Described pear tree is the tree-like shaping methods of " individual " shape, comprises the steps:
1) First Year shaping: select full bud surely to do 70～80 centimetres of heading heights behind the seedling planting; The season of growth is selected 2 major branches in 2 directions of base portion, adopts waddy support branch or draws branch with the rope made of hemp, and the angle that do at branch and center is 60～70 to be spent, and stretches in the ranks about between two major branches; Field planting is done light cutting then winter at the center, clip the 2nd bud direction is stretched between strain; During winter pruning, major branch selects prosperous bud to carry out cutting back, removes or evens up for the competitive branch of major branch elongated shoot;
2) Second Year shaping: the season of growth lures major branch draws, and keeps dried 60～70 degree that are in major branch and center; When the winter cuts the dried elongated shoot in center " the weak bud of weak branch is taken the lead " is pruned, prosperous branch is done at the center removed from base portion, all the other branches are slow putting without exception, become its result of flower relief, and be transformed into medium and small fruit-bearing shoot cluster, and vertical pillar after the winter pruning, protection (namely do at vertical post protection center) is done at the bondage center;
3) shaping in the 3rd year: adopt toothpick angle of release technology summer; Branch on do at major branch and center utilizes its result as far as possible; The dried prolongation in center adopts " bud a little less than in the of weak " to take the lead during winter pruning, cutting back is taken the lead in major branch extending head employing " vigorous branches is strengthened bud "; Begin to adopt " connect and cut---the slow combined techniques of putting " to cultivate large and medium-sized fruit-bearing shoot cluster apart from 50～60 centimetres of major branch branching-points, the direction of branch group elongated shoot is stretched between strain, and all the other branches are general to be adopted and slowly puts processing, allows it become flower; Angle between do at major branch extending head and center is advisable with 40～50 degree, and when angle was less than normal, the healthy and strong behind branch of choosing changed head when the winter cut, spreading angle to 40～50 degree; When angle is bigger than normal, when cutting, adopt the back branch to change head in the winter, elevation angle to 40～50 degree; To the 3rd year winter, described pear tree " individual " tree-like shaping was finished.
Wherein, step 2) described vertical pillar, the method that protection is done at the bondage center is: do the next door at the center and establish 3～5 centimetres of diameters; long 2.7～2.8 meters bamboo poles or cross section are 5～6 centimetres of 5～6 cm x, and length is 2.9～3 meters concrete column, fixes with the rope made of hemp; lighten restrictions on twice every year, wound prevents from hanging.
The described toothpick angle of release of step 3) technology refers to thank in pear tree and utilized toothpick in 25～30 days after spending, and is positioned over respectively branch bifurcation top 4～5 centimeters, and tender tip angle is got out.
Step 3) described " connect to cut---slow put in conjunction with " cultivation refers to select the continuous cutting back of healthy and strong branch at 50～60 centimetres at distance major branch branching-point interval, increases branch, continuous 2～3 times, then slow put into colored.
Described pear tree falls the tree-like result space in the full bearing period of " individual " shape and keeps employing " three supporting ", " cut-put-sheepshank close " pruning method, namely divide preparation branch, developmental branch and fruit bearing shoot to distinguish pruning, preparation branch cutting back inspires shoot, slow the putting of developmental branch urged its one-tenth flower, retraction reduces setting fruit position during the fruit bearing shoot winter pruning of Cheng Huahou, this method is conducive to the fruit-bearing shoot cluster on the major branch is upgraded, and promotes the rejuvenation of fruit-bearing shoot cluster and stablizing of setting fruit position.
To fall " individual " shape novel tree-like in order to turn out pear tree, and it is in addition integrated supporting that the inventor proposes following five key technologies.
1, summer the dried young sprout in center is carried out the toothpick angle of release: it is most important to draw summer a spreading angle to fall the tree-like shaping of " individual " shape for pears.Draw traditional summer a general emphasis in the bottom, it is higher that the present position is done at the center, operation inconvenience and being difficult to carry out, and a large amount of vertical branch that do at the center that removes of therefore having to during annual winter pruning had both caused the waste of nutrient, were unfavorable for again early bearing and high yield.The pear tree of the present invention novel tree-like reservation of " individual " shape center does, and utilizes toothpick support branch summer, and the center that solved is done and drawn a hard problem.The branch that angle is opened a business is that the branch group cultivation pruning in winter is laid a good foundation, and has also created condition for early bearing.Method of operating is to thank in pear tree to begin to utilize toothpick in 25～30 days after spending, and is positioned over respectively branch bifurcation top 4～5 centimeters, and tender tip angle is got out.The method cost is low, and is simple and easy to do.Tree-likely from " 3 add 1 " different be that pear tree falls " individual " shape and emphasizes that a support branch direction stretches between strain, and is vertical with major branch extension aspect.
2, vertical pillar protection is done at the center: pear tree of the present invention falls the center of " individual " shape, and to do early stage degree of lignification low; in early days to the center driedly carried out light cutting, when retraction lags behind and cultivates; vertical pillar protection is done at the employing center; both windproof, the early yield of again can the raising center doing and the full bearing period fruit yield load capacity.Requirement is from Second Year winter, does near any side of major branch at the center and establishes 3～5 centimetres of diameters, and long 2.7～2.8 meters bamboo poles or cross section are 5～6 centimetres of 5～6 cm x, length is 2.9～3 meters concrete column, fix with the rope made of hemp, lighten restrictions on twice every year, wound prevents from hanging.
3, branch group dislocation culture technique is done at the center: the First Year that do after field planting at the center gently cuts winter, and a little less than going to force to stay on, the crooked extension.The middle and lower part that do at the center is take small-sized branch group as main, and two medium-sized fruit-bearing shoot clusters are cultivated at the position of the head that falls, and the bearing of trend of branch group stretches between strain, and is vertical with the major branch extending direction, takes the lead to prune control major branch growth potential with " the weak bud of weak branch ".The center dry finishing is cut and is noted the weight combination, and must guard against deeplys prune year after year or delay year after year puts.The pruning degree is decided according to tree vigo(u)r, the dried suitable heavy pruning that dies down in center, and retraction upgrades downwards; Otherwise do when stronger at the center, will dredge when " strong up and weak down " occurring, slow putting how more, and the scaling combination makes up and down balance of tree vigo(u)r.Branch group on do at the center will in time bounce back, and affects the illumination of bottom two major branches in order to avoid it turns to rise.The center was done and is removed the center when prosperous and do, and utilized major branch back branch to do as the center, to weaken the apical dominance of tree body.
4, fruit-bearing shoot cluster on the major branch " connect and cut---slow put in conjunction with " cultivation: refer to select the continuous cutting back of healthy and strong branch at 50～60 centimetres at distance major branch branching-point interval, increase branch, 2-3 time continuously, then delay put into colored.The output of two scaffold limbs accounts for more than 75% of full tree output, and therefore, the branch group requires to be evenly distributed, and free i.e. " cutting " then " puts " without sky, accomplishes " little sky is very much not empty ".The tree-like branch amount of two major branches is on the low side, and branch skewness and when " large empty " occurring, the back branch also should carry out renovation and utilization adopts " connect and cut---slow put in conjunction with " method to prune, and transformations that bounce back behind its result is with raising output.
5, adopt the fruit-bearing shoot cluster space of " three supporting ", " cut put-sheepshank close " to keep method.To note the renewal of fruit-bearing shoot cluster on the major branch after entering the full bearing period, cut, contract, put and combine, keep the rejuvenation of fruit-bearing shoot cluster.Old and feeble branch group will in time utilize the young sprout of sprouting on the major branch to upgrade.After entering the full bearing period, the back branch that will in time utilize that the major branch angle is excessively opened a business changes head, elevation angle.With " 3 add 1 " tree-like comparing, suitably increase the quantity of big-and-middle-sized fruit-bearing shoot cluster during the cultivation of branch group, to remedy the deficiency of major branch negligible amounts.
Beneficial effect
1, the pear tree of the invention fall " individual " shape novel tree-like be in the existing patent of applicant---the again innovation on " 3 add 1 " tree-like basis.This is tree-like based on the tree-like theory of high light, has both inherited China and has formulated " 3 add 1 " tree-like grade and have that do at the center, tree vigo(u)r holds manageable advantage, has absorbed again the simple strong point of " Y " font tree structure; With " 3 add 1 " tree-like comparing, tree crown is pancake, and tree-like " up-small and down-big ", it is controlled that growth is done at the center; Major branch quantity is few, branch juxtaposition not between major branch, and illumination condition further improves, and fruit quality further improves.The canopy aperture improves 7.3～12.4%, and fruit light quantum flux density increases by 8.7～11.8%, and content of fruit soluble solids improves 0.2～0.3 percentage point, is the suitable tree-like of the Sand Pear cultivations such as abundance of water, emerald green hat, chrysanthemum.
2, the pear tree of the invention falls that " individual " is tree-like to only have 2 major branches and 1 center to do, and 75% fruit yield concentrates on 2 scaffold limbs, and the amount of growth of single major branch is tree-like greater than " 3 add 1 ".These tree-like two scaffold limbs stretch to respectively in the ranks, are fit to dense planting.2 meters * 4 meters of seeding row spacings, every 667m
283 strains of planting increase by 27 strains than " 3 add 1 " tree-like (3 meters * 4 meters).With " 3 add 1 " tree-like comparing, individual plant major branch quantity reduces 1, and single plant yield reduces 23.5～26.2%, but because plantation density increases and the branches and leaves amount of single major branch branch increases every 667m
2The fruit per unit area yield improves 8.1～13.3%.
3, of the present invention fall " individual " shape tree-like on " 3 add 1 " tree-like basis structure further simplify, tree-like cultivation is easier, is more convenient for the orchard worker and grasps, treelet shaping recruitment reduces 2.4～3.1/mu, curring time 1 year ahead of time.Because only have 2 major branches and 1 center to do, tree-like simple, the tree body is shaped easily, convenient management is accepted and is applied by the pears farming easily, is the newly tree-like of a kind of pear tree high-quality, Labor-saving cultivation." 3 add 1 " is tree-like, because 3 major branches are arranged, for avoiding the dried growth effect major branch growth in center, it is heavier that the control degree is done at the center; And 3 the major branch horizontal direction be difficult for being evenly distributed, be prone to and lack branch or the branch overlapping phenomenon that distributes.
4, the present invention adopts the dried fruit-bearing shoot cluster dislocation culture technique in center, it is tree-like slightly larger than " 3 add 1 " that upper fruit-bearing shoot cluster is done at the center, is the vertical shape that staggers with the major branch direction, stretches between strain, be 90 degree on two Extension Head horizontal directions, the illumination effect of bottom major branch is further reduced.The branch group bearing of trend that tree-like employing 3 major branches of pear tree " 3 add 1 ", center are done is helical form, as controls untimelyly, and the top branch can to a certain degree affect the illumination of branch group on the major branch of bottom.
5, the present invention adopts " connect and cut---slow putting " in conjunction with cultivation to fruit-bearing shoot cluster on the major branch, significantly increased the branches and leaves amount of two scaffold limbs, the output of two scaffold limbs is significantly increased, fruit-bearing shoot cluster/limb ratio is higher, the output of two scaffold limbs accounts for more than 75% of full tree output, and economic flow rate is high.And " 3 add 1 " tree-like major branch spacing distance is less than falling " individual " shape, forms easily canopy, so fruit-bearing shoot cluster is take " putting-contract " as main, and cutting back is lighter, and fruit-bearing shoot cluster/limb ratio is not as good as falling the tree-like height of " individual " shape, and it is slightly low to set the body economic flow rate.
6, the present invention adopts the fruit-bearing shoot cluster space of " three supporting ", " cut-put-sheepshank close " to keep method, is conducive to the rejuvenation of fruit-bearing shoot cluster.With " 3 add 1 " tree-like comparing, the quantity of the large and medium-sized fruit-bearing shoot cluster in the branch group increases, and not only remedied the deficiency of major branch negligible amounts, and result space is more stable.
7, the present invention does employing toothpick angle of release technology in summer and center Heavenly Stems and Earthly Branches post resist technology at the center; the application of these two technology and pear tree " 3 add 1 " are tree-like similar; but because " individual " shape tree crown is pancake; two major branches stretch to respectively in the ranks; major branch quantity is few, and is more simple during operation, convenient.In addition, because that the planting density of this tree-like employing is higher than " 3 add 1 " is tree-like, because the single plant yield minimizing, so the Fruit quantity that do at the center is relatively less, the branch group that do at the center that adds staggers and is balanced configuration, and balance is good during the dry and hard fruit in center, has improved the stability of pillar.
Description of drawings
" individual " shape is novel tree-like for Fig. 1 pear tree.
Fig. 2 does and shoot growth then surely.
Fig. 3 season of growth is pulled open the branch angle.
The dried toothpick spreading angle in Fig. 4 center in the 3rd year summer.
Fig. 5 " connect and cut---slow putting " combined techniques cultivation branch group.
Method is kept in Fig. 6 " three supporting ", " cut-put-sheepshank close " fruit-bearing shoot cluster space.
Fig. 7 Second Year winter, did at vertical pillar protection center.
Tree-like after Fig. 8 shaping in the 3rd year.
Embodiment
Embodiment 1
Pear tree of the present invention falls that " individual " is novel tree-likely to be divided into 3 years and to finish.
1, First Year shaping: select full bud surely to do 70～80 centimetres of heading heights behind the seedling planting; The season of growth, select 2 major branches in 2 directions of base portion, adopt waddy support branch or draw branch with the rope made of hemp, the branch base angle is 65～68 degree, stretches in the ranks about between two major branches.Drawing a technology is that pear tree falls one of key technology of " individual " shape shaping.Field planting is done light cutting then winter at the center, clip the 2nd bud direction is stretched between strain; During winter pruning, major branch selects prosperous bud to carry out cutting back, removes or evens up for the competitive branch of major branch elongated shoot.During the major branch lazy weight, can even up as major branch the center is dried.
2, Second Year shaping: the season of growth draws to lure to major branch and draws, and keeps dried 65～68 degree that are in major branch and center; Draw a rear tip angle excessive, carry out bamboo pole and vertically lure and draw.Branch lures the technology of drawing to be down second key technology of " individual " shape shaping.When the winter cuts the dried elongated shoot in center " the weak bud of weak branch is taken the lead " is pruned, prosperous branch is done at the center removed from base portion, all the other branches are slow putting without exception, becomes its result of flower relief, and be transformed into medium and small fruit-bearing shoot cluster.Vertical pillar after the winter pruning, bondage center are done protection (namely do at vertical post protection center).
3, shaping in the 3rd year: adopt toothpick angle of release technology summer; Branch on do at the major branch center utilizes its result as far as possible; The dried prolongation in center adopts " bud a little less than in the of weak " to take the lead during winter pruning, cutting back is taken the lead in major branch extending head employing " vigorous branches is strengthened bud ".Begin to adopt " connect and cut---the slow combined techniques of putting " to cultivate big-and-middle-sized fruit-bearing shoot cluster apart from 50～60 centimetres of major branch branching-points, the direction of branch group elongated shoot is stretched between strain, and all the other branches are general to be adopted and slowly puts processing, allows it become flower.Major branch extending head angle too small, the healthy and strong behind branch of choosing changed a spreading angle when winter cut; The excessive employing back branch of angle changes an elevation angle.The specific practice that vertical pillar protection is done at the center is: do the next door at the center and establish 5 centimetres of diameters, long 2.7～2.8 meters bamboo poles or cross section are 6 centimetres of 5 cm x, and length is 3 meters concrete column, fixes with the rope made of hemp, lightens restrictions on twice every year, and wound prevents from hanging; The dried vertical branch post more protection in center not only can be windproof, but also can reach the Fruit quantity that do at the increase center, thereby improve output, and this is the 4th key technology of " individual " shaping of pear tree.Through shaping in 3 years, the pear tree tree-like shaping of " individual " shape was finished.
It is newly tree-like that the pear tree that said method obtains falls " individual " shape: about 2.4～2.5 meters of the height of trees, and trunk is high 0.6～0.7 meter, only keeps 2 major branches and 1 center is done, and the center is done and is evenly joined all kinds of branch groups, and take medium and small branch group as main.Be equipped with side shoot on the major branch, the left and right sides directly is equipped with large, medium and small type fruit-bearing shoot cluster.The tree-like simplification that pear tree falls " individual " shape, tree crown is short and small, and the tree body is shaped easily, and convenient management is suitable in Sand Pear cultivations such as abundance of water, emerald green hat, chrysanthemums.
Embodiment 2
The method of putting down in writing in the embodiment according to the method for embodiment 1 and pear tree " 3 add 1 " tree-like (ZL201010230570.1) respectively compares test, and kind is abundance of water, emerald green hat, Huanghua Pear.With " 3 add 1 " tree-like contrast, fall the tree-like flat that is of " individual " shape, the canopy aperture improves 7.3～12.4%, and tree crown light quantum flux density increases by 8.7～11.8%, and planting density increases by 32.5%, every 667m
2The fruit per unit area yield improves 8.1～13.3%, and content of fruit soluble solids improves 0.2～0.3%, and the treelet shaping amount of labour used reduces 2.4～3.1.
Pear tree canopy parameter, Fruit yield and quality index and the amount of labour used of two kinds of shaping methods plantations see Table 1.
Table 1 pear tree falls the tree-like canopy parameter of " individual " shape, yield and quality index and the shaping amount of labour used relatively
Claims (5)
1. a pear tree falls the tree-like shaping methods of " individual " shape, it is characterized in that comprising the steps:
1) First Year shaping: select full bud surely to do 70～80 centimetres of heading heights behind the seedling planting; The season of growth is selected 2 major branches in 2 directions of base portion, adopts waddy support branch or draws branch with the rope made of hemp, and the angle that do at branch and center is 60～70 to be spent, and stretches in the ranks about between two major branches; Field planting is done light cutting then winter at the center, clip the 2nd bud direction is stretched between strain; During winter pruning, the strong bud of major branch choosing carries out cutting back, removes or evens up for the competitive branch of major branch elongated shoot;
2) Second Year shaping: the season of growth lures major branch draws, and keeps dried 60～70 degree that are in major branch and center; When the winter cuts the dried elongated shoot in center " the weak bud of weak branch is taken the lead " is pruned, prosperous branch is done at the center removed from base portion, all the other branches are slow putting without exception, and become its result of flower relief, and be transformed into medium and small fruit-bearing shoot cluster, vertical pillar after the winter pruning, protection is done at the bondage center;
3) shaping in the 3rd year: adopt toothpick angle of release technology summer; Branch on do at major branch and center utilizes its result as far as possible; The dried prolongation in center adopts " bud a little less than in the of weak " to take the lead during winter pruning, cutting back is taken the lead in major branch extending head employing " vigorous branches is strengthened bud "; Begin to adopt " connect and cut---the slow combined techniques of putting " to cultivate large and medium-sized fruit-bearing shoot cluster apart from 50～60 centimetres of major branch branching-points, the direction of branch group elongated shoot is stretched between strain, and all the other branches are general to be adopted and slowly puts processing, allows it become flower; Angle between do at major branch extending head and center is advisable with 40～50 degree, and when angle was less than normal, the healthy and strong behind branch of choosing changed head when the winter cut, spreading angle to 40～50 degree; When angle is bigger than normal, when cutting, adopt the back branch to change head in the winter, elevation angle to 40～50 degree; To the 3rd year winter, described pear tree " individual " tree-like shaping was finished.
2. pear tree according to claim 1 falls the tree-like shaping methods of " individual " shape; it is characterized in that step 2) described vertical pillar; the method that protection is done at the bondage center is: do the next door at the center and establish 3～5 centimetres of diameters; long 2.7～2.8 meters bamboo poles or cross section are that 5～6 centimetres of 5～6 cm x, length are 2.9～3 meters concrete column; fix with the rope made of hemp; lighten restrictions on twice every year, wound prevents from hanging.
3. pear tree according to claim 1 falls the tree-like shaping methods of " individual " shape, it is characterized in that the described toothpick angle of release of step 3) technology, refer to thank in pear tree and utilized toothpick in 25～30 days after spending, be positioned over respectively branch bifurcation top 4～5 centimeters, tender tip angle is got out.
4. pear tree according to claim 1 falls the tree-like shaping methods of " individual " shape, it is characterized in that step 3) described " connect to cut---slow put in conjunction with " cultivation, refer at 50～60 centimetres at distance major branch branching-point interval, select the continuous cutting back of healthy and strong branch, increase branch, continuous 2～3 times, then slow put into colored.
5. each described pear tree falls the tree-like shaping methods of " individual " shape according to claim 2 ~ 4, it is characterized in that pear tree falls the tree-like result space in the full bearing period of " individual " shape and keeps employing " three supporting ", " cut-put-sheepshank close " pruning method, namely divide preparation branch, developmental branch and fruit bearing shoot to distinguish pruning, preparation branch cutting back inspires shoot, developmental branch is slow to be put short its and becomes flower, and retraction reduces setting fruit position during the fruit bearing shoot winter pruning of Cheng Huahou.
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| CN103004416B (en) * | 2012-12-13 | 2014-05-14 | 中国农业科学院郑州果树研究所 | European pear tree labor-saving early-fruiting pruning method |
| CN103081676B (en) * | 2013-01-07 | 2014-04-02 | 湖北省农业科学院果树茶叶研究所 | Fast frame-climbing method of shed frame pear tree boughs |
| CN103081770B (en) * | 2013-01-07 | 2014-03-12 | 湖北省农业科学院果树茶叶研究所 | Shed frame pear tree shape and reshaping method thereof |
| CN103262760A (en) * | 2013-06-08 | 2013-08-28 | 湖北省农业科学院果树茶叶研究所 | Method for simplifying angle opening of pear sapling |
| CN103477890B (en) * | 2013-09-26 | 2014-12-17 | 镇江万山红遍农业园 | Reshaping trimming method for high-illumination-efficiency shape of close-planting persimmon tree |
| CN103477932B (en) * | 2013-09-26 | 2015-05-20 | 镇江万山红遍农业园 | Reshaping trimming method for inverted umbrella shape of persimmon tree |
| CN103733940B (en) * | 2013-12-30 | 2015-04-01 | 湖北省农业科学院果树茶叶研究所 | Shed frame pear bearing branch group renewal method |
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| CN104206224A (en) * | 2014-09-26 | 2014-12-17 | 李元生 | Pear tree culture method |
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| CN106804302B (en) * | 2017-01-17 | 2021-04-27 | 河北省农林科学院昌黎果树研究所 | Method for opening waist angle in process of shaping young pear trees |
| CN106888911B (en) * | 2017-02-28 | 2020-07-31 | 山东省果树研究所 | Pear tree planting method |
| CN107484619A (en) * | 2017-09-27 | 2017-12-19 | 砀山县鼎丰源家庭农场 | A kind of steel network forming frame canopy formula cultural method of pear tree |
| CN107593147B (en) * | 2017-10-10 | 2020-10-30 | 濮阳职业技术学院 | Peach tree form and peach tree post-planting management method |
| CN107646489A (en) * | 2017-11-07 | 2018-02-02 | 熊新家 | A kind of cultural method of pear tree |
| CN109220302B (en) * | 2018-09-26 | 2020-11-24 | 濮阳市林业科学院 | Pear tree shape capable of preventing fruit drop in tree-relieving manner and pruning method |
| CN109906865B (en) * | 2019-04-28 | 2021-01-15 | 郭振业 | Method for shaping and trimming urban garden street trees |
| CN111567309B (en) * | 2020-06-22 | 2022-01-28 | 中国农业科学院果树研究所 | Pear double-U four-dragon trunk planar tree form and shaping method thereof |
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