CN102893782A - Rice three-strong cultivation method - Google Patents
Rice three-strong cultivation method Download PDFInfo
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- CN102893782A CN102893782A CN2012103753916A CN201210375391A CN102893782A CN 102893782 A CN102893782 A CN 102893782A CN 2012103753916 A CN2012103753916 A CN 2012103753916A CN 201210375391 A CN201210375391 A CN 201210375391A CN 102893782 A CN102893782 A CN 102893782A
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Abstract
The invention provides a rice three-strong cultivation method. The core technology adopted by the invention is wide-narrow row staggered transplanting, wherein 9000-12000 basic seedlings are planted in a ridged manner per mu, narrow row spacing is 19-23cm, wide row spacing is 40cm, and planting distance is 19-23cm; one seedling is inserted in each pit in one row of two narrow rows, and one seedling is inserted in the middle of every two pits in the other row of the two narrow rows, so as to form transverse triangle-shaped or diamond-shaped staggered wide-narrow rows in the north-south direction, and single-seedling transplantation is carried out. The rice three-strong cultivation method provided by the invention has the advantages that rice can utilize light energy to the utmost extent, marginal advantage is given to a full play, and the best plant shape and an ideal group can be moulded; root growth is strengthened, and water-saving irrigation can be realized; and operation time and materialization input are accurate, and expected high-yield and high-quality rice can be obtained, so that the best economic and ecological benefits are obtained.
Description
Technical field
The present invention relates to the crop genetics method, specifically, relate to paddy rice three strongest ones cultivation method.
Background technology
Paddy rice is the annual gramineae plant.The grain of rice that paddy rice is tied shell rear title rice or rice, nearly half population in the world is all take rice as food.Paddy rice originates in Tropical Asian, after China widely plants, propagates into all over the world gradually.
In traditional rice cultivating method, " thin planting " (square) technology exists luminous energy waste in early stage, later stage light-use to distribute the problems such as irregular, although the middle and later periods leaf-area coefficient is high, photosynthetic yield is not high." the narrow strain of wide row " (rectangle) technology spacing in the rows is too narrow, and light-use is unreasonable, and group, individual inharmonious does not meet the characteristics of super hybridization rice strain, fringe type." wide-and narrow-row is flat to be done " technology does not change with the row wide-narrow line-spacing adjustment that is combined into of different tillering abilities, and effectively fringe is not enough, and narrow row has certain restriction to the growth of paddy rice, forms half of rice." three fixed " cultivation scope is too wide, and adaption object is too many, and early rice, semilate rice, late rice different cultivars have different " three is fixed " problems, are difficult for standard, and it only payes attention to crop and measure, does not consider environmental influence." accurate quantification cultivation " technology has some superiority, yet this technology needs Precise and quantitative N application, and for many years data and experience accumulation must be arranged, and is unsuitable for generally promoting.To sum up, wide-and narrow-row and ridging cultivation are not combined well in the existing rice cultivating technique, and do not have to pay attention to the important function that root system is brought into play in rice cropping.
Summary of the invention
The present invention is intended to overcome the deficiency in the existing rice cultivating technique, and a kind of Novel rice three strongest ones cultivation method with wide-and narrow-row and ridging cultivation combination is provided.
In order to realize the object of the invention, paddy rice of the present invention three strongest ones cultivation method, comprise seed disinfection, vernalization, seedling, sowing, transplanting, fertilising, water management and the extermination of disease and insect pest, the mode that adopts the wide-and narrow-row dislocation to transplant, be specially: every mu of Basic Seedling (cave number) is 9000-12000 seedling (cave), ridging cultivation, narrow row line-spacing 19-23cm, wide every trade is apart from 40cm, spacing in the rows 19-23cm; In two narrow rows delegation is inserted 1 seedling by positive acupuncture point, another row then interleaves 1 seedling in two caves, forms the dislocated type wide-and narrow-row of transverse triangle shape or rhombus, goes to the north-south, single this transplanting.
In the aforementioned cultivation method, when using multi-spike-type to tiller strong rice varieties (hybrid combination), every mu of (667m
2) Basic Seedling is about 9000 strains, the narrow row line-spacing, spacing in the rows (cave apart from) the basic cave of 23cm(number calculates: 6666667 ÷ (23 * (40+23) ÷ 2) ≈ 9000).Use special marker format (Fig. 1) before transplanting.Described multi-spike-type tillers that strong rice varieties is that excellent No. 2 of Y, Y are excellent 143, Liangyou0293, day excellent China account for, Y two is excellent 8188, Yue You 9113 or C two excellent 343 etc.
In the aforementioned cultivation method, when the rice varieties (hybrid combination) that uses large spike to tiller weak, every mu of Basic Seedling is about 12000 strains, narrow row line-spacing, spacing in the rows (cave apart from) 19cm.(basic cave number calculates: 6666667 ÷ (19 * (40+19) ÷ 2) ≈ 12000).Use special marker format (Fig. 1) before transplanting.The described large spike weak rice varieties of tillering is that two excellent 1128, section surpasses 3218 or Y two excellent 302 etc.
In the aforementioned cultivation method, the seed disinfection method is: disinfectant can be selected strong chlorine oil (having another name called TCCA (Trichloroisocyanuric acid)) or make hectogram (being control rice blast, bakanae disease, false smut, anthracnose, damping off, the first-selected medicament of leaf blight).
I) will be dipped in advance in the water 12 hours rice paddy seed and pull 500 times of dilutions seed soaking sterilizations 12 hours of putting into 85% strong chlorine oil out, wash after pulling out, put into again water seed soaking 12 hours, pull at last vernalization out; Or
Ii) rice paddy seed directly is soaked in 25% and makes in 2500 times of dilutions of hectogram missible oil 24-36 hour, pull rear direct vernalization out.
Note the seed soaking on daytime during seed soaking, pick up night and do not soak (can use ventilative nylon net bag or knitting bagged kind).
In the aforementioned cultivation method, seedling comprises:
Iii) conventional water-raised seedling: after the vernalization, treat long 1 paddy of root according to a conventional method, when long half paddy of bud or 85% above kind paddy radicle stretch out, refine at normal temperatures bud or dried in the air bud 3-6 hour after sowing (by the land for growing field crops sowing quantity, rice seedling bed seeding quantity light seeding is even broadcast); Or
Iv) floppy disk seedling: with nonirrigated farmland or the half dry nursery seedbed as the floppy disk seedling, add " dry-raised nurse " or " seedling strengthen agent " makes nutrient matrix with the vegetable garden soil that sieves, 1 in bud paddy (paddy shows money or valuables one carries unintentionally and gets final product) is broadcast in every hole.
Young plants management: after rice shoot grows 2 true leaves, execute " wean is fertile ", gently executed " fertilizer of standing up " in 1-2 days before transplanting, spray " medicine of standing up ".
In the aforementioned cultivation method, the length of time rice seedlings grow is 12-20 days during transplanting, selects healthy and strong single transplantation of seedlings (band soil zone mud is not hindered root), and the transplanting length of time rice seedlings grow of conventional water-raised seedling (" trident seedling ") is no more than 6 leaf ages, and the transplanting length of time rice seedlings grow of floppy disk seedling is no more than 3.5 leaf ages.
In the above-mentioned cultivation method, base manure and fertile mixed the executing of N, P, K fertilizer or simple substance are used in fertilising.Wherein, described base manure is compost, pig cow dung or the cake-shaped rape seed dregs of becoming thoroughly decomposed; N:P:K=1:0.5:0.8(effective element weight ratio in described N, P, the K fertilizer).
Need execute purity nitrogen 16kg by per mu yield 800kg paddy, 900kg paddy need be executed purity nitrogen 18kg and calculate, and nitrogenous fertilizer is by base manure: fetilizer for tillering: ear manuer: granulated fertilizer=4:2-3:3-2:1 divides work to use for four times; N, P, K total amount ratio are by N:P:K=1:0.5:0.8(effective element weight ratio) to join and execute, phosphate fertilizer 95% applies as base manure, and 5% applies potash fertilizer base manure: ear manuer: granulated fertilizer=5:4:1 as granulated fertilizer.When harrowing a field before transplanting, uses by base manure, the heavy dressing fertilizer, and to fertilize auxiliary, about every mu of compost 2000-3000kg that executes to become thoroughly decomposed of fertilizer or pig cow dung 2000kg or cake-shaped rape seed dregs 100kg; Tillering fertilizer was used in transplanting in rear 7 days, and ear manuer was used in the ear differentiation II phase, and tillering fertilizer and ear manuer are executed N, P, K is fertile; Granulated fertilizer divides in booting later stage and full heading time to be made outside the root fertilizer for 2 times and uses, and uses the fertilizer such as urea, potassium dihydrogen phosphate.
In the aforementioned cultivation method, the method for water management is: drain water when planting, the surface planting of band earth seedling; Bao Shui is turned green, and shallow water is tillered, water layer 1-3cm; 2-3 week ditching, ridging after transplanting, the field face only stays " Hua Huashui "; During nourishing and growing, it is moistening that the field keeps; Water booting is arranged; Fertilizer application period, laxative phase, heading flowering period will suitably add profundal zone, keep the 3-5cm water layer; Alternation of wetting and drying is solid behind the Qi Sui; Gather in and drained water in front 7 days.
Be specially: drain water (for avoiding the hyperthermal injury seedling, should transplant in fine afternoon and cloudy day) when planting, the surface planting of band soil (mud) seedling, shallow to " root and stem of certain plants is stained with mud "; Bao Shui is turned green (planted see soil moisture content and weather behind the seedling and decide), shallow water tiller (water layer 1-3cm); 2-3 week after transplanting (or 〉=total seedling number of 3.1 leaves reach and estimate spike number 80%) ditching, ridging, the field face only stays " Hua Huashui ", wide row middle part earth is tripped out (ditching with ridger), is overlying between the narrow row seedling, and micro-ridge slightly becomes convex (Fig. 2), ditch depth 3-5cm, width 7-10cm; During nourishing and growing, the field keeps moistening (water is arranged in the ditch), and does off and on to little spliting open, and (about 10-15 days) want suitably heavily solarization of gradation before and after the highest seedling stage, forces that root system is pricked deeply, the abundant oblique act of blade; Water booting is arranged; Fertilizer application period, laxative phase, heading flowering period will suitably add profundal zone (keeping the 3-5cm water layer); But running water cover in field, high temperature sky is filled with; Alternation of wetting and drying is solid behind the Qi Sui, fills with 2-3cm depth water at every turn, does wet; Gather in and drained water in front about 7 days.
Combine the diseases prevention worm: emphasis is done a good job of it the extermination of disease and insect pest such as rice thrips, snout moth's larva (pink rice borer, striped rice borer, paddy stem borer), rice leaf roller, rice fulgorid, banded sclerotial blight, panicle blast, false smut, should also be noted that the prevention and control of regional characters pest (such as spiral shell, mouse, bird, grass, rice gall midge etc.).Occur dynamically and " sick insect pest situation newspaper " according to the sick worm in field, under the plant protection expert instructs, select the high-efficiency low-toxicity less-persistent pesticide in time to prevent and treat.
Adopt the advantage of dislocated type wide-and narrow-row to be: 1. to bring into play the marginal effect of wide row, intercept and capture to greatest extent luminous energy, reduce extinction coefficient, strengthen middle and later periods base portion illumination; 2. reduce the interference between narrow row, prevent " half of rice ", mould the Ideal Plant Morphology of almost symmetry; 3. cooperate ditching, ridging, strengthen the short root of ventilation, bright stalk.
" three strongest ones " refer in the paddy rice of the present invention three strongest ones cultivation method: strengthen marginal effect, strengthen ideotype and colony, reinforcement underground part improving activity of root system.The cultivation means that adopt are: wide-and narrow-row dislocation ridging formula high-yield culturing.Dislocation comprises two aspects, the dislocation of first horizontal plane, the acupuncture point dislocation between the narrow row; It two is dislocation of vertical plane, the ridging cultivation, and the soil face just rises and falls.Adopt three strongest ones of the present invention cultivation method, can make paddy rice utilize to greatest extent luminous energy, bring into play Edge advantages, mould best strain shape and idealized population; Strengthen root growth, water-saving irrigation; Activity duration and materialization input amount obtain the paddy rice of expection high yield, high-quality, thereby obtain optimal economic, ecological benefits accurately.
Description of drawings
Fig. 1 is the schematic diagram that the present invention uses marker format wide-and narrow-row.
Fig. 2 is wide-and narrow-row dislocation cultivation schematic layout pattern in the preferred embodiment of the present invention.
Fig. 3 is ditching, ridging schematic diagram in the preferred embodiment of the present invention.
Embodiment
Following examples are used for explanation the present invention, but are not used for limiting the scope of the invention.If do not specialize, use among the embodiment the conventional means that is well known to those skilled in the art of technological means, the raw material of use is the commercial goods.
Embodiment paddy rice three strongest ones cultivation method
1 yield target
Per unit area yield 12-13.5t/hm
2(per mu yield 800-900kg).
2 Major Developmental indexs
2.1 fertility dynamic structure
Take Changsha and Sanya as example, other is local with reference to local time in season.Changsha 15-20 in May in sowing time day, transplanting time 30-6 in the May month 3, transplant length of time rice seedlings grow 3-4 leaf, 18-20 day in August fringe phase beginning, full heading time 23-25 in August day, 5 days 30-10 months September in maturing stage, 10-15 day in October are about the time of infertility 135,145 days; Sanya 15-20 in December in sowing time day, transplanting time 29-in December January 3 transplant length of time rice seedlings grow 3-4 leaf, 27-29 day in March fringe phase beginning, full heading time 1-6 in April day, 5 days 30-5 months April in maturing stage, 10-15 day in May are about 135 days, the 145 days time of infertility.
2.2 seedling ear structure
Every mu of Basic Seedling: the seed seedling is transplanted the cave number and is equated with every mu in principle, or considers that large seedling is not the same etc. former thereby add seedling more than 20% of cave number; The every mu of field Basic Seedling that falls: the floppy disk seedling is without tiller seedling 9000-1.2 ten thousand (equal to plan the cave number, or be slightly more than this number because large seedling is not the same), and middle seedling seedling " y-bend seedling "or" trident seedling " is corresponding to turn over 2-3 kind; Dry field (putting the field) seedling (〉=3.1 leaf seedlings, lower same) 16-18.5 ten thousand, the highest seedling 26.5 ten thousand, percentage of earbearing tiller 60%-70%, mature spike number 160,000-18.5 ten thousand.
2.3 structure of output
Mu is fringe 160,000-18.5 ten thousand effectively, and total grain number 200-240 grain, ripening rate be more than 85%, real grain number 170-200 grain, and thousand kernel weight 25-30g, about per mu yield 800kg, core demonstration sheet reaches about 900kg/ mu.
3 key technologies
3.1 selection adapted varieties
Be chosen in the ecotype combination of Hunan, Hainan seed selection, output, resistance are similar to or surpass slow ripe and late late ripe (claiming that again the spy is ripe late) kind of super hybridized rice of two line system, Liangyou0293.
3.2 cultivate healthy and strong rice shoot
1. seed disinfection: disinfectant can be selected strong chlorine oil (having another name called TCCA (Trichloroisocyanuric acid)) or make hectogram (being control rice blast, bakanae disease, false smut, anthracnose, damping off, the first-selected medicament of leaf blight).The strong chlorine oil using method is: 12 hours seed-grain of preimpregnation is picked up put into 500 times of liquid seed soaking of 85% strong chlorine oil sterilization 12h, pull out with clear water and clean, continue to put into clear water seed soaking 12 hours after cleaning, pick up at last vernalization.Make the hectogram using method be: seed-grain to be soaked into 25% to make 24-36h in 2500 times of liquid of hectogram missible oil, pull rear direct vernalization out.Note the seed soaking on daytime during seed soaking, pick up night and do not soak.2. vernalization (or the vernalization while soaking seed, the only not vernalization of soaking seed) the conventional water-raised seedling of sowing: a.: according to a conventional method vernalization is (under the condition of daily mean temperature 〉=25 ℃, in about 72h, adopt " three ups and three downs " alternately to soak the vernalization of dew method), when treating 1 paddy of root length, long half paddy of bud (or 85% above kind paddy radicle stretches out), sow at normal temperatures (spare by land for growing field crops sowing quantity, rice seedling bed seeding quantity light seeding and broadcast) behind refining (drying in the air) bud 3-6h.B. floppy disk seedling: with nonirrigated farmland or the half dry nursery seedbed as the floppy disk seedling, add " dry-raised nurse " or " seedling strengthen agent " (strict use by explanation) with the vegetable garden soil that sieves and make nutrient matrix, 1 in bud paddy (paddy shows money or valuables one carries unintentionally and gets final product) is broadcast in every hole.3. young plants management: rice shoot is executed " wean is fertile " after growing 2 true leaves, gently executes " fertilizer of standing up " in 1-2 days before transplanting, sprays " medicine of standing up "; 4. transplant about length of time rice seedlings grow 12-20 days, select healthy and strong single transplantation of seedlings (band soil zone mud is not hindered root), the floppy disk seedling transplanting length of time rice seedlings grow generally is no more than 3.5 leaf ages, and conventional moistening " trident seedling " is no more than 6 leaf ages.
3.3 the wide-and narrow-row dislocation is transplanted
According to the soil fertility condition and the birth index of promoting mainly kind of locality, determine Transplanting Density.Promotion is transplanted after marking specification with marker.Described marker partly forms thin planting wooden wheel girth 46cm, diameter 14.65cm by handle, control stick, adjustable shelf etc.; Dense planting wooden wheel girth 38cm, diameter 12.1cm.General every mu of Basic Seedling (cave number) 9000 seedlings (cave) (multi-spike-type tiller strong combination) and 12000 seedlings (large spike tiller weak combination), narrow row line-spacing 23-19cm(density 9000 cappings, density 12000 remove the limit, lower with), wide every trade is apart from 40cm, spacing in the rows 23-19cm.In two narrow rows delegation is inserted 1 seedling (cave) by positive acupuncture point, another row then interleaves 1 seedling among two caves, forms the dislocated type wide-and narrow-row of transverse triangle shape (or rhombus), goes to the north-south, single this transplanting.(Fig. 3)
The characteristics of dislocated type wide-and narrow-row are: 1. bring into play the marginal effect of wide row, intercept and capture to greatest extent luminous energy, reduce extinction coefficient, strengthen middle and later periods base portion illumination; 2. reduce the interference between narrow row, prevent " half of rice ", mould the Ideal Plant Morphology of almost symmetry; 3. cooperate ditching, ridging, strengthen the short root of ventilation.
3.4 protect fertilising after the front short middle control
Need execute purity nitrogen 16kg by per mu yield 800kg paddy, 900kg paddy need be executed purity nitrogen 18kg and calculate, and nitrogenous fertilizer is by base manure: fetilizer for tillering: ear manuer: granulated fertilizer=4:2-3:3-2:1 divides work to execute for four times; N, P, K total amount ratio are joined by N:P:K=1:0.5:0.8 and are executed, and phosphate fertilizer 95% applies as base manure, and 5% applies potash fertilizer base manure: ear manuer: granulated fertilizer=5:4:1 as granulated fertilizer.When harrowing a field before transplanting, uses by base manure, the heavy dressing fertilizer, and to fertilize auxiliary, about every mu of compost 2000-3000kg that executes to become thoroughly decomposed of fertilizer or pig cow dung 2000kg or cake-shaped rape seed dregs 100kg; Tillering fertilizer was used in transplanting in rear 7 days, and ear manuer was used in the ear differentiation II phase, and tillering fertilizer and ear manuer are executed N, P, K is fertile; Granulated fertilizer divides in booting later stage and full heading time to be made outside the root fertilizer for 2 times and uses, and uses the fertilizer such as urea, potassium dihydrogen phosphate.
3.5 ridging and water management
Drain water (for avoiding the hyperthermal injury seedling, should transplant in fine afternoon and cloudy day) when planting, the surface planting of band soil (mud) seedling, shallow to " root and stem of certain plants is stained with mud "; Bao Shui is turned green (planted see soil moisture content and weather behind the seedling and decide), shallow water tiller (water layer 1-3cm); After transplanting about 2 weeks (or total seedling number reach estimate spike number 80%) ditching, ridging, the field face only stays " Hua Huashui ", wide row middle part earth is tripped out (ditching with ridger), is overlying between the narrow row seedling, and micro-ridge slightly becomes convex (Fig. 2), ditch depth 3-5cm, the about 7-10cm of width; During nourishing and growing, the field keeps moistening (water is arranged in the ditch), and does off and on to little spliting open, and (experience about 10-15 days) wants suitably heavily solarization of gradation before and after the highest seedling stage, forces that root system is pricked deeply, the abundant oblique act of blade; Water booting is arranged; Fertilizer application period, laxative phase, heading flowering period will suitably add profundal zone (keeping the 3-5cm water layer); But running water cover in field, high temperature sky is filled with; Alternation of wetting and drying is solid behind the Qi Sui, fills with 2-3cm depth water at every turn, does wet; Gather in and drained water in front about 7 days.
3.6 combine the diseases prevention worm
Emphasis is done a good job of it the extermination of disease and insect pest such as rice thrips, snout moth's larva (pink rice borer, striped rice borer, paddy stem borer), rice leaf roller, rice fulgorid, banded sclerotial blight, panicle blast, false smut, should also be noted that the prevention and control of regional characters pest (such as spiral shell, mouse, bird, grass, rice gall midge etc.).Occur dynamically and " sick insect pest situation newspaper " according to the sick worm in field, under the plant protection expert instructs, select the high-efficiency low-toxicity less-persistent pesticide in time to prevent and treat.Reference " rice intensification technology " etc.
Although above the present invention is described in detail with a general description of the specific embodiments, on basis of the present invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore, these modifications or improvements all belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (10)
1. paddy rice three strongest ones cultivation method, comprise seed disinfection, vernalization, seedling, sowing, transplanting, fertilising, water management and the extermination of disease and insect pest, it is characterized in that, adopt the wide-and narrow-row dislocation to transplant, be specially: every mu of Basic Seedling is the 9000-12000 strain, ridging cultivation, narrow row line-spacing 19-23cm, wide every trade is apart from 40cm, spacing in the rows 19-23cm; In two narrow rows delegation is inserted 1 seedling by positive acupuncture point, another row then interleaves 1 seedling in two caves, forms the dislocated type wide-and narrow-row of transverse triangle shape or rhombus, goes to the north-south, single this transplanting.
2. cultivation method according to claim 1 is characterized in that, when the rice varieties that uses multi-spike-type to tiller strong, every mu of Basic Seedling is 9000 strains, narrow row line-spacing, spacing in the rows 23cm.
3. cultivation method according to claim 2 is characterized in that, the multi-spike-type that uses tillers that strong rice varieties is excellent 143 as excellent No. 2 of Y, Y, Liangyou0293, day excellent China account for, Y two is excellent 8188, Yue You 9113 or C two excellent 343.
4. cultivation method according to claim 1 is characterized in that, when the rice varieties that uses large spike to tiller weak, every mu of Basic Seedling is 12000 strains, narrow row line-spacing 19cm, spacing in the rows 19cm.
5. cultivation method according to claim 4 is characterized in that, the large spike of the use weak rice varieties of tillering is that two excellent 1128, section surpasses 3218 or Y two excellent 302.
6. each described cultivation method is characterized in that according to claim 1-5, and the seed disinfection method is:
I) will be dipped in advance the rice paddy seed of 12h in the water and pull 500 times of dilutions seed soaking sterilization 12h that put into 85% strong chlorine oil out, wash after pulling out, put into again the water 12h that soaks seed; Or
Ii) rice paddy seed directly is soaked in 25% and makes 24-36h in 2500 times of dilutions of hectogram missible oil.
7. each described cultivation method according to claim 1-5 is characterized in that seedling comprises:
Iii) conventional water-raised seedling: after the vernalization, treat long 1 paddy of root according to a conventional method, when long half paddy of bud or 85% above kind paddy radicle stretch out, refine at normal temperatures bud or the bud 3-6h that dries in the air after sow; Or
Iv) floppy disk seedling: with nonirrigated farmland or the half dry nursery seedbed as the floppy disk seedling, add " dry-raised nurse " or " seedling strengthen agent " makes nutrient matrix with the vegetable garden soil that sieves, 1 in bud paddy is broadcast in every hole.
8. cultivation method according to claim 7 is characterized in that, the length of time rice seedlings grow is 12-20 days during transplanting, selects healthy and strong single transplantation of seedlings, and the transplanting length of time rice seedlings grow of conventional water-raised seedling is no more than 6 leaf ages, and the transplanting length of time rice seedlings grow of floppy disk seedling is no more than 3.5 leaf ages.
9. each described cultivation method is characterized in that according to claim 1-5, and base manure and fertile mixed the executing of N, P, K fertilizer or simple substance are used in fertilising;
Described base manure is compost, pig cow dung or the cake-shaped rape seed dregs of becoming thoroughly decomposed; N:P:K=1:0.5:0.8(weight ratio in described N, P, the K fertilizer).
10. each described cultivation method is characterized in that according to claim 1-5, and the method for water management is: drain water when planting, the surface planting of band earth seedling; Bao Shui is turned green, and shallow water is tillered, water layer 1-3cm; 2-3 week ditching, ridging after transplanting, the field face only stays " Hua Huashui "; During nourishing and growing, it is moistening that the field keeps; Water booting is arranged; Fertilizer application period, laxative phase, heading flowering period will suitably add profundal zone, keep the 3-5cm water layer; Alternation of wetting and drying is solid behind the Qi Sui; Gather in and drained water in front 7 days.
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| CN108293746A (en) * | 2018-01-31 | 2018-07-20 | 中国科学院南京土壤研究所 | A kind of implantation methods of high-quality rice |
| CN110050688A (en) * | 2019-04-09 | 2019-07-26 | 武汉弘耕种业有限公司 | A kind of selection of hybrid rice restorer line |
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