CN102893782B - Rice three-strong cultivation method - Google Patents
Rice three-strong cultivation method Download PDFInfo
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- CN102893782B CN102893782B CN201210375391.6A CN201210375391A CN102893782B CN 102893782 B CN102893782 B CN 102893782B CN 201210375391 A CN201210375391 A CN 201210375391A CN 102893782 B CN102893782 B CN 102893782B
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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, all take rice as food in the world.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, effective fringe deficiency, 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 data and experience accumulation for many years must be arranged, and is unsuitable for generally promoting.To sum up, in existing rice cultivating technique, wide-and narrow-row and ridging cultivation are not combined well, and there is no to pay attention to the important function of bringing into play to root system in rice cropping.
Summary of the invention
The present invention is intended to overcome the deficiency in existing rice cultivating technique, provides a kind of by the Novel rice three strongest ones cultivation method of wide-and narrow-row and ridging cultivation combination.
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, a line is inserted to 1 seedling by positive acupuncture point, another row interleaves 1 seedling in two caves, forms the dislocated type wide-and narrow-row of transverse triangle shape or rhombus, goes to north-south, single this transplanting.
In aforementioned cultivation method, when using multi-spike-type to tiller strong rice varieties (hybrid combination), every mu of (667m
2) Basic Seedling is 9000 about 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 aforementioned cultivation method, when the rice varieties (hybrid combination) that uses large spike to tiller weak, every mu of Basic Seedling is 12000 strains left and right, 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 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 water the rice paddy seed of 12 hours and pull 500 times of dilutions seed soaking sterilizations 12 hours of putting into 85% strong chlorine oil out, and wash after pulling out, then put into water seed soaking 12 hours, finally pull vernalization out; Or
Ii) rice paddy seed directly is soaked in to 25% and makes 24-36 hour in 2500 times of dilutions 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 (can use ventilative nylon net bag or knitting bagged kind).
In aforementioned cultivation method, seedling comprises:
Iii) conventional water-raised seedling: after 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 dry 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: using Huo Ban dry nursery, nonirrigated farmland as the seedbed of floppy disk seedling, with the vegetable garden soil sieved, add " dry-raised nurse " or " seedling strengthen agent " makes nutrient matrix, 1, 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 execute " fertilizer of standing up " in 1-2 days before transplanting, spray " medicine of standing up ".
In aforementioned cultivation method, during transplanting, the length of time rice seedlings grow is 12-20 days, 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 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, 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 as granulated fertilizer, potash fertilizer base manure: ear manuer: granulated fertilizer=5:4:1.When harrowing a field before transplanting, uses by base manure, the heavy dressing fertilizer, and to fertilize auxiliary, 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 left and right; Tillering fertilizer is used in transplanting in latter 7 days, and ear manuer was used in the ear differentiation II phase, and tillering fertilizer and ear manuer are executed N, P, K fertilizer; Granulated fertilizer divides and makes fertilizer outside root for 2 times and use in booting later stage and full heading time, uses the fertilizer such as urea, potassium dihydrogen phosphate.
In aforementioned cultivation method, the method for water management is: drain water while 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 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; After Qi Sui, alternation of wetting and drying is solid; Gather in and within first 7 days, drain water.
Be specially: drain water (for avoiding the hyperthermal injury seedling, should transplant in fine day afternoon and cloudy day) while 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 after seedling and seen soil moisture content and weather and determine), 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 to (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, field keeps moistening (water is arranged in ditch), and does off and on to micro-and split open, and before and after the highest seedling stage, (about 10-15 days) wants suitably heavily solarization of gradation, 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; After Qi Sui, alternation of wetting and drying is solid, fills with 2-3cm depth water at every turn, dry wet; Gather in and drain water in first 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 (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 to prevent and treat in time.
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, strengthening 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. coordinate ditching, ridging, the short root of strengthening ventilation, bright stalk.
In paddy rice of the present invention three strongest ones cultivation method, " three strongest ones " refer to: strengthening marginal effect, strengthening ideotype and colony, strengthening 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 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; The strengthening 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.
The accompanying drawing explanation
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 preferred embodiment of the present invention.
Fig. 3 is ditching, ridging schematic diagram in preferred embodiment of the present invention.
Embodiment
Following examples are used for the present invention is described, but are not used for limiting the scope of the invention.If do not specialize, in embodiment, use the conventional means that is well known to those skilled in the art of technological means, the raw material of use is 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, and other is local with reference to the 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, about 135, the 145 days time of infertility; 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, 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), the corresponding 2-3 kind that turns over of middle seedling seedling " y-bend seedling "or" trident seedling "; Dry field (putting 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, total grain number 200-240 grain, and ripening rate is more than 85%, real grain number 170-200 grain, thousand kernel weight 25-30g, per mu yield 800kg left and right, core demonstration sheet reaches 900kg/ mu left and right.
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 ripe (claiming that again the spy is ripe late) 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: the preimpregnation seed-grain of 12 hours is picked up and puts into 500 times of liquid seed soaking sterilization 12h of 85% strong chlorine oil, pull out with clear water and clean, continue to put into clear water seed soaking 12 hours after cleaning, finally pick up vernalization.Make the hectogram using method be: seed-grain to be soaked into to 25% and 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 limit seed soaking limit vernalization, the only not vernalization of soaking seed) the conventional water-raised seedling of sowing: a.: vernalization according to a conventional method 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 long 1 paddy of root, long half paddy of bud (or the kind paddy radicle 85% or more stretches out), after refining (drying in the air) bud 3-6h, sow at normal temperatures (by the land for growing field crops sowing quantity, rice seedling bed seeding quantity light seeding is even broadcast).B. floppy disk seedling: using Huo Ban dry nursery, nonirrigated farmland as the seedbed of floppy disk seedling, add " dry-raised nurse " or " seedling strengthen agent " (strict use by explanation) with the vegetable garden soil sieved and make nutrient matrix, 1, 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, within 1-2 days, gently executes " fertilizer of standing up " 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 local soil fertility condition and the birth index of promoting mainly kind, determine Transplanting Density.Promotion is transplanted after marking specification with marker.Described marker partly is comprised of handle, control stick, adjustable shelf etc., thin planting wooden wheel girth 46cm, diameter 14.65cm; 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, a line is inserted to 1 seedling (cave) by positive acupuncture point, another row interleaves 1 seedling among two caves, forms the dislocated type wide-and narrow-row of transverse triangle shape (or rhombus), goes to 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, strengthening 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. coordinate ditching, ridging, the short root of strengthening ventilation.
3.4 protect fertilising after 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 and are executed by N:P:K=1:0.5:0.8, and phosphate fertilizer 95% applies as base manure, and 5% applies as granulated fertilizer, potash fertilizer base manure: ear manuer: granulated fertilizer=5:4:1.When harrowing a field before transplanting, uses by base manure, the heavy dressing fertilizer, and to fertilize auxiliary, 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 left and right; Tillering fertilizer is used in transplanting in latter 7 days, and ear manuer was used in the ear differentiation II phase, and tillering fertilizer and ear manuer are executed N, P, K fertilizer; Granulated fertilizer divides and makes fertilizer outside root for 2 times and use in booting later stage and full heading time, 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 day afternoon and cloudy day) while 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 after seedling and seen soil moisture content and weather and determine), shallow water tiller (water layer 1-3cm); After transplanting about 2 weeks (or always the seedling number reach the expectation spike number 80%) ditching, ridging, the field face only stays " Hua Huashui ", wide row middle part earth is tripped out to (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, field keeps moistening (water is arranged in ditch), and does off and on to micro-and split open, and before and after the highest seedling stage, (experiencing about 10-15 days) wants suitably heavily solarization of gradation, 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; After Qi Sui, alternation of wetting and drying is solid, fills with 2-3cm depth water at every turn, dry wet; Gather in and drain water in first 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 (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 to prevent and treat in time.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 (1)
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, a line is inserted to 1 seedling by positive acupuncture point, another row interleaves 1 seedling in two caves, forms the dislocated type wide-and narrow-row of transverse triangle shape or rhombus, goes to north-south, single this transplanting; Use marker before transplanting, make the rice transplanting normalization;
Wherein, when the rice varieties that uses multi-spike-type to tiller strong, every mu of Basic Seedling is 9000 strains, narrow row line-spacing 23cm, spacing in the rows 23cm; The multi-spike-type used tiller strong rice varieties for 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;
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; The large spike the used weak rice varieties of tillering is that two excellent 1128, section surpasses 3218 or Y two excellent 302;
The seed disinfection method is:
I) will be dipped in advance the rice paddy seed of 12h in water and pull 500 times of dilutions seed soaking sterilization 12h that put into 85% strong chlorine oil out, wash after pulling out, then put into the water 12h that soaks seed; Or
Ii) rice paddy seed directly is soaked in to 25% and makes 24-36h in 2500 times of dilutions of hectogram missible oil;
Seedling comprises:
Iii) conventional water-raised seedling: after 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: using Huo Ban dry nursery, nonirrigated farmland as the seedbed of floppy disk seedling, with the vegetable garden soil sieved, add " dry-raised nurse " or " seedling strengthen agent " makes nutrient matrix, 1, bud paddy is broadcast in every hole;
During transplanting, the length of time rice seedlings grow is 12-20 days, 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;
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, K fertilizer);
The method of water management is: drain water while 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 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; After Qi Sui, alternation of wetting and drying is solid; Gather in and within first 7 days, drain water.
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