CN110036846A - A kind of cultural method improving perennial rice hair seedling uniformity - Google Patents
A kind of cultural method improving perennial rice hair seedling uniformity Download PDFInfo
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- CN110036846A CN110036846A CN201910272906.1A CN201910272906A CN110036846A CN 110036846 A CN110036846 A CN 110036846A CN 201910272906 A CN201910272906 A CN 201910272906A CN 110036846 A CN110036846 A CN 110036846A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
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Abstract
Invention provides a kind of cultural method for improving perennial rice hair seedling uniformity, comprising: gathers in apply to pour before perennial rice and protects root budding fertilizer；Control water dry field is carried out to field after perennial rice milk stage；One season rice region retains rice stub 15cm~25cm progress when harvesting perennial rice overwintering；Double rice cropping system early rice retains rice stub 2cm~5cm and carries out late rice production when harvesting perennial rice, reservation rice stub 15cm~25cm is carried out overwintering when late rice harvests perennial rice；If hair seedling uniformity is bad after overwintering, retain rice stub height 2cm~5cm when arranging rice stub again.The present invention stays rice stub and control water dry field that can sufficiently improve the hair seedling uniformity of perennial rice by low, transhipment distribution is concentrated conducive to photosynthate, guarantee the effective fringe of perennial rice, setting percentage and mass of 1000 kernel, rice quality is improved simultaneously, to realizing that yield increases income and improve the effect of quality, the powerful guarantee planting benefit and dissemination of perennial rice.
Description
Technical field
The invention belongs to agricultural plantation technology fields, and in particular to a kind of cultivation side for improving perennial rice hair seedling uniformity
Method.
Background technique
Perennial rice is to plant continuously harvest within 1 year the rice in (more seasons) for many years and make kind.Perennial rice is to utilize receipts
The axillary bud of its subterranean stem (under native table) can regrow after safe overwintering after obtaining, and next year (season) restores normal rice and gives birth to
Production capacity power successively backward realizes the production of perennial rice.Perennial Oryza makees product in a kind of new rice, and single harvest rice actual measurement produces
500 kgs/acre~600 kgs/acre of amount, double cropping of rice survey 1000 kgs/acre~12000 kgs/acre of yield (early rice+late rice),
From the 2nd production season, it is no longer necessary to the fund and labor of productivitys link such as buy seed, seedling, transplant, plough a field, harrowing a field
Power investment is compared with annual rice, it is possible to reduce 50% or more of production cost about reduces 400 in Yunnan Province
Member/mu~600 yuan/mu direct plunge into, and do not need to turn over field for years, carry out it is no-tillage after reduce labour
The investment of power, fertilizer, pesticide, increases the natural quality and natural soil fertility of soil, and perennial rice technology has wide popularization
Application prospect.
Perennial rice is different from ratooning rice, and the main axillary bud using its subterranean stem (under native table) after harvest can be got over safely
It regrows after winter, if perennial rice stays rice stub excessive height, high section and subterranean stem can sprout emergence, and perennial rice
The seedling breeding time that high section axillary bud issues is shorter, and low section (subterranean stem axillary bud) breeding time is shorter, this just brings same rice pocket
The seedling overground part of sending and the seedling of underground part, breeding time is inconsistent, thus can not normally apply fertilizer on cultivation step, can not be normal
The prevention and control of plant diseases, pest control is carried out, grain number per spike, setting percentage, mass of 1000 kernel etc. is influenced, constrains perennial rice output increased；While breeding time is not
Unanimously, Grain Filling cannot carry out simultaneously, and nutritional ingredient is unable to centralizedly supply to seed, cause part seed that cannot sufficiently fill
Slurry, is unfavorable for starch and protein accumulation, influences Milling quality, exterior quality, Cooking Quality and processing quality.
Summary of the invention
Above-mentioned technical problem hinders the popularization and application of perennial rice to a certain extent, to solve above-mentioned ask
Topic, by the research and development of the team of inventor, the method for having invented the perennial rice hair seedling uniformity of raising, the present invention stays rice by low
Stake and control water dry field can sufficiently improve the hair seedling uniformity of perennial rice, are conducive to photosynthate and concentrate transhipment distribution, guarantee more
The effective fringe of year raw rice, setting percentage and mass of 1000 kernel, while rice quality is improved, to realize that yield increases income and improve the effect of quality
Fruit, the powerful guarantee planting benefit and dissemination of perennial rice, specifically, the present invention is implemented as follows:
A kind of cultural method improving perennial rice hair seedling uniformity gathers in apply to pour before perennial rice and protects root budding fertilizer；One
Season rice region retains rice stub 15cm~25cm progress when harvesting perennial rice overwintering；Double rice cropping system early rice retains when harvesting perennial rice
Rice stub 2cm~5cm carries out late rice production, and late rice retains rice stub 15cm~25cm progress when harvesting perennial rice overwintering；After overwintering,
Control water dry field is carried out to field.
Further, after this method further includes overwintering, if hair seedling irregular progress rice stub height retains rice stub when arranging
2cm~5cm.
Further, it is described again arrange rice stub height method include: randomly choosed in every piece of perennial rice rice field to
Few three pilots, each pilot randomly select rice plant stake, count the number of blade difference regenerated between new talent in every plant of rice stub and exist
Seedling number more than three pieces leaf, the ratio that the seedling number accounts for respective rice stub regeneration new talent sum are counted, and the flat of the ratio is taken
Mean value, if average value be more than 10% or the ratio be more than 10% strain number account for pilot sum ratio it is more than half when, carry out rice stub
Height arranges.
Further, it is described again arrange rice stub height period be, perennial rice discharge water manage forefathers' work cut stake processing.
Further, described that control water dry field is carried out to field are as follows: control water dry field, field are carried out to field after the milk stage of perennial rice
Not waterflooding and relative moisture of the soil are 35%~55%.
Further, described pour protects root budding fertilizer 20 days~25 days or so after the neat fringe of perennial rice.
Further, guarantor's root budding fertilizer is urea and potassium sulfate.
Further, it is described gather in perennial rice when retain rice stub height carried out between 15cm~25cm it is overwintering.
Further, retain the height of rice stub between 2cm~5cm when the rice stub height of arrangement again.
Possessed by of the invention the utility model has the advantages that
(1) overwintering rear rice stub survival rate of perennial rice regeneration season is improved, it is suitably low that rice stub is stayed to reduce overground part Gao Jie
Axillary bud nutriment competes on position axillary bud and subterranean stem, guarantees that the nutriment of stalk storage concentrates the axillary bud on subterranean stem to supply
It answers, improves axillary bud survival rate, lay the foundation for overwintering rear regeneration season axillary bud sprouting at strong sprout, Qi Miao, and then be conducive to regeneration season foot
Enough spike numbers, big fringe are formed, and yield is improved.
(2) by it is low stay rice stub and control water dry field improve the grain number per spike of perennial rice, number of productive ear, mass of 1000 kernel and solid
Rate promotes the high quality growth of rice quality, has ensured exterior quality and nutritional quality while improving yield.
(3) it stays rice stub to reduce perennial rice field top to send out seedling ratio by low, has unified aerial part and under ground portion
Breeding time has unified fertilizer application period, maturity period, is not only conducive to cultivation step and integrated pest prevention and control, also increases perennial rice again
The percentage of earbearing tiller in raw season, hair seedling uniformity, and then realize the stable and high yields of perennial rice.Be conducive to perennial rice yielding Populations
It is formed, improves perennial rice yield, and then improve perennial rice productivity effect.
It (4) is the root and resting bud of rice stub underground targetedly before harvesting, after harvesting to field Shi Baogen budding fertilizer
Sufficient growth nutrient is provided, so that it smoothly safe overwintering and can enable its next season to have when germinateing enough
Nutrient grown, thus when improving germination percentage and the regeneration in next season new talent uniformity, improve perennial rice
Yield.
Specific embodiment
It is right below with reference to the embodiment of the present invention to keep purpose provided by the invention, technical solution, advantage clearer
Technical solution in the embodiment of the present invention carries out clear, complete description.Based on the embodiments of the present invention, this field ordinary people
Member's every other embodiment obtained without creative efforts, belongs to protection scope of the present invention.
In the present invention, term " perennial ", " many years natural disposition " or term similar refer to through long male wild rice and cultivation
Rice hybridization progeny selection there is plantation can once be grown by vegetative propagation and harvest for many years more seasons (2 years or 2 seasons and with
On) strain characteristic, thus have good perennial ability.
" perennial rice send out seedling uniformity " of the present invention refers to late rice or the second season or the N season of perennial rice
The hair seedling degree of unification of the rice nascent of institute's regenerative growth, the rice stub for referring specifically to leave after season harvesting is after overwintering, in rice
Uniformity, the uniformity of growth cycle of the new hair time of newborn sprouting, new talent in stake is referred to as hair seedling uniformity.This hair
Bright " perennial rice sends out seedling uniformity " also has with the setting percentage of perennial rice, mass of 1000 kernel, perennial rice yield and quality
There is correlation, uniformity is higher, and each These parameters are better.
Show that the influencing factor of heretofore described " perennial rice yield is relatively low " is main through inventor's result of study are as follows:
1) grain number per spike in perennial rice rice stub unit area is low, it is difficult to form more big fringe；2) perennial rice overwintering survival rate is low,
Root system gradually aging after perennial rice milk stage, while stalk nutriment is largely transported to seed, so that perennial rice is gathered in
Axillary bud absorbs nutriment reduced capability on subterranean stem afterwards, while the nutrients quality that stalk is supplied to axillary bud is few, leads to axillary bud
Survival rate reduces；Stay rice stub excessive height that the high section axillary bud of perennial rice is caused to be sought with axillary bud on subterranean stem when gathering in simultaneously
Competition is supported, causes axillary bud nutriment on subterranean stem insufficient, in addition winter low temperature, reduces axillary bud survival rate, eventually lead to
It regenerates and generates contradiction between season effective fringe, big fringe, influence yield.(3) perennial rice hair seedling is irregular, rice stub ground part it is new
The new talent breeding time that seedling breeding time partially short (general 2 months maturations), underground part issue is partially long (general 4 months or so maturations), i.e.,
It is inconsistent with underground part growing process on the ground, cause fertilizer to apply phase contradiction, cannot normally supplement needed for perennial rice growth
Growth elements influence grain number per spike, number of productive ear, mass of 1000 kernel and setting percentage, and then influence yield；
Influence the factor of perennial rice rice quality: influence rice quality: uniformity is inconsistent, so that on perennial rice field
Portion and underground part seedling breeding time process are inconsistent, bring underground part and overground part Grain Filling difference, and nutriment transports disorder,
Influence rice eating-quality, processing quality, exterior quality and nutritional quality.
The heretofore described cultural method for improving perennial rice hair seedling uniformity, except the step of being referred in the present invention it
Outside, remaining steps and operations condition etc. is conventional plantation means.Show in the present invention through inventor's result of study, it is more
20 days~25 days Shi Baogen budding fertilizers after year raw neat fringe of rice, are conducive to keep root activity, raising stalk nutritious substances accumulation amount,
Guarantee Wintering Period axillary bud nutritional need, improves overwintering axillary bud survival rate；After perennial rice harvesting, the purpose for staying rice stub is to guarantee rice
Stake stalk has enough accumulation of photosynthate, for axillary bud nutrition, improves the overwintering axillary bud survival rate of perennial rice, but stays rice stub height
Should not be too high, stubble height controls between 15cm~25cm；If after overwintering, perennial rice hair seedling is irregular, low stay is carried out
Rice stub processing can ensure that regrowth compresses section from underground part and issues to greatest extent, guarantee that regrowth growing process is consistent, ensure
Regeneration season number of productive ear and grain number per spike are coordinated after overwintering, form big fringe, accomplish that grain number per spike is taken into account, while being conducive to setting percentage and thousand
Height is brought up again, and then improves perennial rice yield overwintering rear regeneration season, control water dry field processing is carried out in milk stage field, can be improved
Root activity is transported using absorption of nutrient ingredients, is avoided the resting bud that perennial rice field pushes on casing coupling and is shifted to an earlier date Germination And Seedling,
The phenomenon that causing seedling and seed to fight for nutriment appearance guarantees that the solid nutrition of kernel grouting is sufficiently fed, improves solid
Rate, mass of 1000 kernel, it is final to improve yield and guarantee rice quality.Cultural method in this way, so that the hair seedling in regeneration season is neat
Degree is high, effectively improves spike number, mass of 1000 kernel and setting percentage, optimizes rice quality while improving yield.Therefore, the present invention innovates
It is overwintering that ground retains rice stub 15cm~25cm progress when a season rice region harvests perennial rice, and double rice cropping system early rice harvest is perennial
Retain rice stub 2cm~5cm when rice and carry out late rice production, rice stub 15cm~25cm is retained when late rice harvests perennial rice and is got over
Winter.It is low to stay rice stub, be conducive to the distribution of rice stub nutriment, improve axillary bud survival rate, and then guarantee the formation of big fringe；Meanwhile
It is low that rice stub is stayed to handle, the emergence rate of aerial part is effectively reduced, is conducive to rice stub photosynthate and turns under ground portion
Fortune, conducive to the hair Miao Shengchang of under ground portion, avoids the excessive bring underground part of overground part seedling number and overground part seedling breeding time different
Cause problem, it is formed using fertility strong sprout early period, guarantees that the later period forms big fringe, while avoiding kernel grouting productive phase in later period not
Unanimously, Rice Quality Problem is influenced, yield is improved and guarantees rice matter.
Embodiment
Embodiment 1: before harvest (Qi Suihou 20 days~25 days) Shi Baogen budding fertilizer it is overwintering to rice stub after axillary bud survival rate and
Season yield effect is regenerated after overwintering
Tested variety is perennial rice 23, and test was transplanted in seedling on December 23 in 2015, on 2 3rd, 2016, head season
(early rice) gathered on July 11st, 2016, and late rice harvested November 1, and 20 days (October 20) is arranged at 2 after the neat fringe of late rice
Reason handles 1: Shi Baogen budding fertilizer urea 12kg, processing 2: blank (not Shi Baogen budding fertilizer) test sets 3 repetitions altogether, handles
The way to manage in all rice fields is consistent.Axillary bud number investigation (each repetition tune is survived on 2 15th, 2017 progress rice stubs after overwintering
Look into 3 rice stub axillary buds and survive number), it is gathered on June 17th, 2017, each repetition takes 3 plants of progress species tests, while 3 cells are complete
Survey is cut in fact and is produced in portion.Test result is as shown in table 1, and Shi Baogen budding fertilizer significantly improves overwintering rice stub axillary bud survival rate, Jin Erti
High number of productive ear, at the same improve it is overwintering after rice stub hair seedling uniformity, improve grain number per spike, setting percentage and mass of 1000 kernel, in turn
Improve yield.
Axillary bud survival rate and overwintering rear regeneration season yield effect after 1 Shi Baogen budding fertilizer of table is overwintering to rice stub
Note: lowercase letter indication difference reaches the level of signifiance (P < 0.05).
It should be noted that as shown in table 1, not Shi Baogen budding fertilizer, rice stub axillary bud survival rate is less, reduces effective fringe
Number, hair seedling uniformity is poor, and on the one hand reason is with the solid progress of kernel grouting, root activity reduces, so that root system absorbs
Moisture and nutritional capacity weaken, axillary bud moisture and subalimentation, are on the other hand the nutriments of stalk storage largely to seed
Transhipment, so that the nutriment that Wintering Period stalk is transported to axillary bud is reduced.So that axillary bud subalimentation, it is difficult to overwintering, survival rate
It is lower.Axillary bud death toll is more after overwintering, causes hair seedling irregular, the problem for bringing setting percentage, grain number per spike, mass of 1000 kernel low.
Embodiment 2: the adjustment again of the hair seedling uniformity after overwintering
Perennial rice resting bud on low altitude area Wintering Period, rice stub is constantly in growth conditions, therefore more Nian Houxu
Rearrange rice stub, and again stay rice stub height also and will affect perennial rice hair seedling uniformity.Therefore, overwintering period, rice stub
On the sprout time of regeneration new talent will appear normal otherness, then can also be in regeneration growth period in season but if differing greatly
The phenomenon that apparent breeding time is different is inside caused, so that uniformity and yield, quality etc. are influenced, therefore, in order to further ensure
The perennial rice hair seedling for regenerating season is neat, then needs to judge whether again after overwintering to need to arrange again, otherness, which reaches, to be had
What necessity arranged again, retain control again by the height to rice stub between 2cm~5cm, to realize to hair seedling uniformity
Further control, has further ensured hair seedling uniformity, to further ensure that regrowth growing process is consistent, further
Improve the quality of perennial rice.
On November 1st, 2016 gathers in perennial rice 23, and harvesting rice stub height is 15cm, and on 2 15th, 2017 to rice stub
Rice stub height is stayed in 9 kinds of setting when being arranged again, including 2cm, 5cm, 10cm, 15cm, 20cm, 25cm, 30cm, 35cm,
9 kinds of height of 40cm, in 2 months 2017 28；Day, rice stub hair growth of cereal crop seedlings condition uniformity is investigated.As shown in table 2, with rice stub
Height increases overground part ratio and increases when arrangement, wherein it is minimum with 2cm and 5cm height overground part ratio, June 16 in 2017
Day, the perennial rice 23 of each processing is carried out species test and surveyed to produce, as shown in table 2,2cm and 5cm number of productive ear, grain number per spike, mass of 1000 kernel,
Setting percentage is above other processing, so that yield is high compared with other processing.
Difference stays rice stub height to influence test to hair seedling uniformity when rice stub arranges after table 2 is overwintering
The results are shown in Table 2, and with staying the increase seedlings ratio of rice stub height higher, uniformity is poorer, illustrates from neat
From the point of view of, rice stub processing method is taken when poor to hair seedling uniformity, by staying low stake that perennial rice uniformity can be improved.
Embodiment 3: the method for rice stub height is arranged after overwintering again
Continue on the basis of embodiment 2, count the regeneration new talent number of blade in rice plant stake, if between regeneration new talent
The ratio that seedling number of the number of blade difference more than three pieces leaf accounts for this plant of rice stub regeneration new talent number is more than 10%, illustrates that uniformity is poor,
Rice stub height should be then arranged again, retain rice stub 2cm~5cm.Method for sorting are as follows: selected at random in perennial rice rice field
Three or five pilots are selected, each pilot randomly selects rice plant stake, and it is poor to count the number of blade regenerated between new talent in every plant of rice stub
The different seedling number more than three pieces leaf, the ratio that the seedling number accounts for respective rice stub regeneration new talent sum are counted, and the ratio is taken
Average value, if average value is more than 10%；Alternatively, the ratio that the strain number that the ratio is more than 10% accounts for pilot sum is more than half；Then
Illustrate that the uniformity of whole fields is poor, Ying Jinhang uniformity arranges, and the uniformity, which arranges, stays rice stub to be low, and rice stub height exists
Between 2cm~5cm.
Rice stub hair seedling uniformity is investigated after perennial rice 23 in example 2 is overwintering and is regenerated on selected rice stub
New talent carries out number of blade investigation, counts investigated new talent number of blade variation range, randomly chooses three, field pilot A, B, C, from
A, tri- plants of rice stubs of a, b, c are chosen respectively for 3 points of B, C, count the regeneration new talent on each rice stub and the number of blade on new talent, a respectively
New talent number of the strain rice stub blade amplitude of variation more than 3 leaves accounts for that single plant rice stub regeneration new talent ratio is 12%, b plants of rice stubs are
14%, c plants of rice stubs are 9%, and the strain number accounting more than 10% is 23, more than half, then need to arrange rice stub again.
Embodiment 4: influence of the field management to high perennial rice hair seedling uniformity
Control water dry field is carried out to field after the milk stage of perennial rice, field not waterflooding and relative moisture of the soil are 35%
~55%；Retain rice stub, stubble height 15cm after harvesting；After perennial rice rice stub is overwintering, investigate as described in Example 3 more
The hair seedling uniformity of year raw rice rice stub arranges rice stub adjustment hair seedling uniformity: cutting rice stub processing, guarantor if hair seedling uniformity is poor
Staying rice stub height is 5cm.Protecting root budding fertilizer is urea and potassium sulfate, and 20 days~25 days Shi Baogen promote bud after the neat fringe of perennial rice
Fertilizer；After harvesting how much raw rice, with general planting way to manage compared with the yield of mu number rice, volume increase 12.4%.
Perennial rice variant production season carries out control water dry field to field after milk stage, all avoids alternation of wetting and drying moisture
The resting bud that perennial rice field pushes on casing coupling caused by Routine Management method shifts to an earlier date Germination And Seedling, leads to seedling and seed contention
The phenomenon that nutriment, occurs, and perennial rice root system can be enabled to be normally carried out photosynthesis, meets setting percentage, thousand
Weight, finally promotes yield, to ensure that the survival rate of rice stub after harvesting, to ensure the uniformity of regeneration Ji Shifa seedling；
Therefore, control water dry field is solid conducive to kernel grouting, influences setting percentage and mass of 1000 kernel, finally promotes the raising of yield；
Rice field is applied before harvesting and protects root budding fertilizer；Since root system declines perennial rice in a period of time before and after harvest time
Therefore weak and stalk nutrients Mass lost, 20 days~25 days after neat fringe, that is, harvests so that resting bud nutriment lacks
Phase for a period of time, protect to field the use of root budding fertilizer, is able to maintain root activity, increases stalk nutriment storage product
Tired, overwintering period is the suitable nutriment of resting bud supplement, so that axillary bud maintains vigour, can smoothly spend dormant period, get over
Teletostage when so that next regeneration season germinateing, has sufficient nutrient, smoothly germination and growth, to improve perennial rice
Survival rate motility rate, ensure that hair seedling uniformity, finally promote the raising of yield.
To sum up, a kind of cultural method improving perennial rice hair seedling uniformity provided by the invention, stays rice stub to protect by low
The uniformity of regeneration season new talent and effectively collecting for fringe grain nutrition are demonstrate,proved, so that axillary bud there are enough battalion on rice stub subterranean stem
It supports, safe overwintering, guarantee has enough effective fringes, while laying the foundation for big fringe and realize the yield that perennial rice regenerates season
It increases income；The low grain number per spike for staying rice stub to improve perennial rice, number of productive ear, mass of 1000 kernel and setting percentage, so that knot grain is full
The high quality growth for promoting rice quality, has ensured exterior quality and nutritional quality while improving yield；Rice is stayed by low
Stake reduces perennial rice field top hair seedling ratio and has unified fertilizer application period, maturity period so that sent out new talent growing process is consistent, had
Conducive to cultivation step and integrated pest prevention and control so that its can smoothly safe overwintering and enable its next season germinate when
It is grown with enough nutrients, finally improves the germination percentage in next season, improve the quality and yield of perennial rice.
Claims (9)
1. a kind of cultural method for improving perennial rice hair seedling uniformity, which is characterized in that gather in apply before perennial rice and pour guarantor's root
Budding fertilizer；Control water dry field is carried out to field after perennial rice milk stage；One season rice region retains rice stub 15cm when harvesting perennial rice
~25cm carries out overwintering；Double rice cropping system early rice retains rice stub 2cm~5cm and carries out late rice production when harvesting perennial rice, late rice is received
It is overwintering to retain rice stub 15cm~25cm progress when obtaining perennial rice.
2. the cultural method of perennial rice hair seedling uniformity is improved as described in claim 1, after further including overwintering, if hair seedling
Retain rice stub height 2cm~5cm when the irregular rice stub of arrangement again.
3. the cultural method of perennial rice hair seedling uniformity is improved as claimed in claim 2, it is described to arrange rice stub height again
Method include: to randomly choose at least three pilots in every piece of perennial rice rice field, each pilot randomly selects rice plant stake,
Seedling number of the number of blade difference more than three pieces leaf regenerated between new talent in every plant of rice stub is counted, the seedling number accounts for respective rice stub again
The ratio of raw new talent sum is counted, and the average value of the ratio is taken, if average value be more than 10% or the ratio be more than
10% strain number account for pilot sum ratio it is more than half when, carry out the arrangement of rice stub height.
4. the cultural method of the perennial rice hair seedling uniformity of raising as described in Claims 2 or 3 any one, described whole again
The period of reason rice stub height is that perennial rice starts fertilising and discharges water before management.
5. the cultural method of the perennial rice hair seedling uniformity of raising as described in Claims 1 to 4 any one, wherein described
Control water dry field is carried out to field are as follows: field carries out control water dry field, field not waterflooding and soil phase after the milk stage of perennial rice
It is 35%~55% to humidity.
6. the cultural method of the perennial rice hair seedling uniformity of raising as described in claims 1 to 3 any one, described apply pour guarantor
Root budding fertilizer period is 20-25 days after the neat fringe of perennial rice.
7. improving the cultural method of perennial rice hair seedling uniformity as claimed in claim 6, wherein guarantor's root budding fertilizer is
Urea and potassium sulfate.
8. improve the cultural method of perennial rice hair seedling uniformity as described in claim 1, when harvesting perennial rice, is protected
The height of rice stub is stayed to carry out between 15cm~25cm overwintering.
9. the cultural method of perennial rice hair seedling uniformity is improved as claimed in claim 2, it is described to arrange rice stub height again
When retain rice stub height between 2cm~5cm.
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| CN113475335A (en) * | 2021-08-19 | 2021-10-08 | 四川省农业科学院水稻高粱研究所 | Whole-seedling high-yield method for overwintering rice |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113475335A (en) * | 2021-08-19 | 2021-10-08 | 四川省农业科学院水稻高粱研究所 | Whole-seedling high-yield method for overwintering rice |
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