CN105706695A - Winter wheat planting method in rain-fed area of Heilonggang River Valley - Google Patents
Winter wheat planting method in rain-fed area of Heilonggang River Valley Download PDFInfo
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- CN105706695A CN105706695A CN201610104846.9A CN201610104846A CN105706695A CN 105706695 A CN105706695 A CN 105706695A CN 201610104846 A CN201610104846 A CN 201610104846A CN 105706695 A CN105706695 A CN 105706695A
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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
Abstract
A winter wheat planting method in the rain-fed area of Heilonggang River Valley comprises steps of 1 selecting the variety of winter wheat; 2 applying base fertilizer; 3 reducing row spacing and increasing density; 4 carrying out fine sowing; 5 rolling greatly; 6 dressing water-soluble fertilizers in spring; and 7 controlling pests and weeds. According to the improved winter wheat planting method, the problem that top dressing of dryland wheat in spring cannot be realized is solved through dressing of water-soluble fertilizers in spring for dryland wheat so as to ensure that the demand for vegetative growth at late stage of the wheat can be met. According to the technique of dressing water-soluble fertilizers for dryland wheat in spring, only 2M<3> of water is consumed per mu, so that water consumption is low. The fertilizers are applied after being fully dissolved, which is beneficial for root systems of the wheat to absorb and utilize. The utilization rate of the fertilizers is high and the yield-increasing effect is remarkable. Experiments show that compared with wheat fields without topdressing in spring, the yield per mu of fields with water-soluble fertilizers dressed in spring is increased by more than 30% in average, so the remarkable yield increasing effect is achieved.
Description
Technical field
The invention mainly relates to Heilongjing River rain and support Dryland agricultural production, especially a kind of Heilongjing River rain supports Dryland winter wheat implantation methods.
Background technology
China's Heilongjing River refers mainly to be positioned at Hebei province, Shandong Province and Circum-Bohai Sea Lowland plain, Tianjin, relates to cultivated area more than 3,000 ten thousand mu, and more than 60% is middle-and-low-yielding fields, wherein supports dry farming (prosthetic irrigation conditions area) for rain for 1,500,000 mu.This district's annual rainfall is typically in 400mm 600mm, and the rainfall of more than 80% concentrates on July between JIUYUE, and completely by sky kind ground, and skewness, between year border, fluctuation is big.And all the other 9 months just Semen Tritici aestivi the season of growth (traditional winter wheat planting technology generally in early October sow, Second Year mid or late June gather in the crops.), rainfall is only 150mm-250mm, and the transpiration coefficient of Semen Tritici aestivi is (also known as water requirement, refer to the moisture grams of the rising consumption of 1 gram of dry of phytosynthesis institute) for 257-774, higher nearly one times than autumn crops, Winter-Spring arid happens occasionally, and has a strong impact on winter wheat growth and grows.Tradition dry land wheat yields poorly and unstable, is generally 100-150kg/ mu.Except being subject to arid restriction, soil fertility deficiency is the another principal element causing dry land wheat to yield poorly.The period of duration of Semen Tritici aestivi is longer, and the demand of fertilizer is big, the easy fertilizer deficiency of late growth stage.Owing to this region spring arid is serious, can not water again in nonirrigated farmland, does not water water and then chases after and do not spread manure, and Semen Tritici aestivi turns green the phase of standing up on the occasion of the Spike development critical period spring, directly affects differentiation and the formation of its spikelet number and grain number per spike, and then affects last yield.Therefore, spring, de-fertilizer was the major reason causing this area's wheat yield low.
Tradition dry land wheat fertilising, generally has two kinds of methods, and one is adopt " one bombards " fertilization method prior to seeding.Namely whole fertilizer, apply wheat cultivation previous crops base fertilizer is disposable including fertilizer, nitrogen-phosphorus-potassium compound fertilizer, no longer topdress in wheat growth stage.Two is that snowfall is more in the winter time, and soil moisture content good time top icepro is topdressed, and shortly before namely soil thaws in the beginning of spring, fertilizer imposes on wheatland, and soil thaws and plays the effect topdressed for Semen Tritici aestivi when returning moisture in the soil.
Above two traditional fertilization method, is simply wheatland fertilising in the soil moisture content good stage, and cannot consider the need fertilizer requirement of Semen Tritici aestivi middle and late stage, causing fertilizer absorbance low, fertilizer efficiency is difficult to play one's part to the full.
(1) tradition " one bombards " fertilization method, easily causes loss and the waste of nitrogenous fertilizer, it is impossible to meet the Semen Tritici aestivi middle and late stage demand to fertilizer.Phosphate fertilizer is relative with potash fertilizer Agrochemical characters stable, and nitrogenous fertilizer is due to its ease of solubility and volatility, very unstable, no matter executes in earth's surface or soil, all easily causes loss.And disposable bottom application easily causes wheat seedling vigorous growth before the winter, colony's development is out of control；And arrived the spring wheat Spike development critical period, through consumption and the loss of 5 wheat harvesting periods, nitrogenous fertilizer is under-supply again, and the later stage is difficult to ensure, so, although the method improves fertilizer amount, but effect of increasing production inconspicuous.
(2) tradition is pushed up icepro topdress method early spring, is mainly restricted by upper soll layer soil moisture content, and owing to this area's soil in early spring thaws, to return moisture in the soil limited, it is difficult to fully absorbing of guarantee fertilizer, utilization rate of fertilizer is low.Simultaneously.This in period dressing time still early, misaligned with wheatear divergaence time, effect of increasing production is also inconspicuous.
Summary of the invention
Present invention aims to Heilongjing River rain and support the ecological characteristic of Dryland, it is proposed to a Heilongjing River rain support Dryland winter wheat implantation methods, propose innovatively, ensureing on enough bases using base fertilizer, to impose Water soluble fertilizer technology spring.
For solving above-mentioned technical problem, the present invention provides a kind of Heilongjing River rain to support Dryland winter wheat implantation methods, comprises the following steps:
Step 1, winter wheat variety select
Select the wheat breed that drought resistance and salt tolerance is got bumper crops, winter habit is strong；The drough-resistant and saline-alkali resistant wheat breed deep blue wheat 6005 or drought resisting, salt-resistant type wheat breed deep blue 6001 or drought resistance and salt tolerance Semen Tritici aestivi Jinan 18 etc. of choosing the selection-breeding of Cangzhou agricultural and forest science institute can be adopted.
Step 2, apply fertilizer to the subsoil
Every mu of bottom application fertilizer 1000kg-1500kg, applies during seedbed preparation, compound fertilizer 30kg-50kg；
Step 3, indention density
Semen Tritici aestivi line-spacing is 15cm-18cm, is different from traditional wide row space, it is simple to topdressing of Semen Tritici aestivi, the mu amount of broadcasting 15kg within Semen Tritici aestivi suitable date of seeding；
Step 4, finely sow
Seed level 3cm-5cm, uniformity；
Step 5, severe are suppressed
After broadcasting, before the winter, severe suppression in spring, be different from traditional slight suppression, it is prevented that evaporation of water in soil leakage moisture in the soil；
Step 6, spring impose Water soluble fertilizer
Stand up to topdress around phase at Semen Tritici aestivi；Fertilizer is NPK compound quick-acting Water soluble fertilizer or carbamide, and the nitrogen of about 10kg is dissolved in 2m by every mu3-3m3In water, carry out topdressing spring after fully dissolving.
Step 7, disease pest and weed are prevented and treated
The disease pest and weeds such as powdery mildew, rust, aphid, midge worm and all kinds of weeds that wheatland is occurred are prevented and treated in time.
The present invention improves to be had, and the topdressing method in described step 6 is: by the fertilizer solution after dissolving, utilize fertilizer machinery, ditch to impose between two row wheat ridges, and interlacing is applied fertilizer.Apply degree of depth 3cm-5cm, near wheat root.Timely suppression of soil after fertilising.
The present invention improves to be had, and the chemical agent of high-efficiency low-toxicity noresidue is selected in the disease pest and weed preventing and treating in described step 7.And in conjunction with biological prevention.
The present invention improves to be had, N, P, K content ratio respectively 9.2:3.0:7.6 in fertilizer in described step 6.
The invention have the benefit that the winter wheat implantation methods of new improvement, impose Water soluble fertilizer technology spring by dry land wheat, solve dry land wheat and chase after the problem do not spread manure spring, it is ensured that the Semen Tritici aestivi later stage nourishes and grows demand, dry land wheat imposes Water soluble fertilizer technology spring, only uses 2m for every mu3-3m3Water, water consumption is few.Fertilizer applies after fully dissolving, and is beneficial to wheat root and absorbs, and utilization rate of fertilizer is high, obvious effect of increasing production, and test shows, imposes the plot of Water soluble fertilizer spring, it is possible to average every mu of the wheatland that can not topdress than spring increases production more than 30%, obvious effect of increasing production.
Detailed description of the invention
By describing the technology contents of the present invention, structural feature in detail, being realized purpose and effect, it is explained in detail below in conjunction with embodiment.
The present invention program, mainly for Yu Yang Dryland, this region winter wheat regulation of fertilizer requirement and feature, proposes a kind of Heilongjing River rain innovatively and supports the implantation methods of Dryland winter wheat, specifically include following steps:
Step 1, winter wheat variety are selected
Select the wheat breed that drought resistance and salt tolerance is got bumper crops, winter habit is strong.
Step 2, enough use base fertilizer
Every mu of bottom application fertilizer 1000kg-1500kg, applies during seedbed preparation.Compound fertilizer 30kg-50kg, can utilize seeder to apply in the lump at seeding time.
Step 3, indention density
Semen Tritici aestivi line-spacing is changed the little line-spacing of 15cm-18cm into, the mu amount of broadcasting 15kg within Semen Tritici aestivi suitable date of seeding by traditional wide row space.
Step 4, finely sow
Seed level 3cm-5cm, uniformity.
Step 5, severe are suppressed
Change the slight suppression of tradition for after broadcasting, before the winter, severe suppression in spring, it is prevented that the evaporation of water in soil leaks moisture in the soil.
Step 6, spring impose Water soluble fertilizer
Dressing time: Semen Tritici aestivi stand up (mid or late March) before and after the phase topdress.
Fertilizer variety selects: selecting NPK compound quick-acting Water soluble fertilizer or carbamide, its dissolubility is good, and stable strong, utilization rate of fertilizer is high.
Topdress quantity: every mu of nitrogen by about 10kg (amounting to Water soluble fertilizer quantity by nitrogen content) is dissolved in 2m3-3m3In water, carry out topdressing spring after fully dissolving.
Topdressing method: by the fertilizer solution after dissolving, utilize fertilizer machinery, ditch to impose between two row wheat ridges, interlacing is applied fertilizer.Apply degree of depth 3cm-5cm, near wheat root.Timely suppression of soil after fertilising.
Step 7, disease pest and weed are prevented and treated
The disease pest and weeds such as powdery mildew, rust, aphid, midge worm and all kinds of weeds that wheatland is occurred are prevented and treated in time.Select the chemical agent of high-efficiency low-toxicity noresidue, and carry out integrated control in conjunction with technology such as Biological controls.
Below in conjunction with specific embodiment and experimental data, describe implantation methods and the advantage of the winter wheat of the present invention in detail:
1, test material and method:
Multiple different planting area has been selected to carry out experimentation at Heilongjing River, the areas such as the quay in such as Hebei province, Huanghua, Cang County, Qing County, Hengshui, and large-scale demonstration plantation is carried out respectively in these areas, for avoiding repeating to prove, the present invention enumerates the test situation of two of which test site, the test data of other test sites is consistent with the two test site, does not repeat.
Test site: be experimental field located at Botou City pool San Hangzi village, town 2012-2013 year.Experimental field it is located at silo project proving ground, the Bohai Sea, Er Keniu village, neat housework township, Huanghua City, Hebei province 2013-2014 year.
1.2 test materials: choose the drough-resistant and saline-alkali resistant wheat breed deep blue wheat 6005 of Cangzhou agricultural and forest science institute selection-breeding.
1.3 EXPERIMENTAL DESIGN
2012-2013 year EXPERIMENTAL DESIGN and scheme: adopt the design of split plot experiment method, main process (A) is different Water soluble fertilizer kinds, totally 4 kinds, it is respectively as follows: A1: red sun sulfenyl punching fertilising (N-P-K=18-7-21), A2: potassium sky undershoot fertilising (N-P-K=12-15-18), A3: state's light High-efficiency flush fertilizer (N-P-K=12-8-20), A4: red sun Yellow humic acid water flush fertilizer (N-P-K=10-4-16)；Vice processing (B) is fertilising concentration (amounting to pure N), totally 3, respectively B1: pure N4.6kg/ mu (is equivalent to carbamide 10kg/ mu)；B2: pure N9.2kg/ mu (is equivalent to carbamide 20kg/ mu)；B3: pure N13.8kg/ mu (is equivalent to carbamide 30kg/ mu) and does not chase after water respectively not topdress, equivalent N fertilizer urea water lapies is executed, conventional ditch spread and clear water are comparison.Totally 16 process, as shown in table 1.Each process repeats Gong48Ge community, each plot area 3*5=15m 3 times2
Table 1. dry land wheat imposes Water soluble fertilizer split block design process table
Mu water consumption 2000kg, fertilizer is stood up uniform ditch spread on March 25 2013 phase in Semen Tritici aestivi after dissolving, suppression after earthing.
2013-2014 year EXPERIMENTAL DESIGN and scheme: according to 2012-2013 year result of the test, Quarter Design and the same previous year of control measures, choosing state's light High-efficiency flush fertilizer that effect is best, 4 levels of N element concentration design are respectively as follows: C1: pure N4.6kg/ mu (state's light High-efficiency flush fertilizer 38kg/ mu)；C2: pure N6.9kg/ mu (state's light High-efficiency flush fertilizer 38kg/ mu+5kg/ mu carbamide)；C3: pure N9.2kg/ mu (state's light High-efficiency flush fertilizer 38kg/ mu+10kg/ mu carbamide)；C4: pure N11.5kg/ mu (state's light High-efficiency flush fertilizer 38kg/ mu+15kg/ mu carbamide)；CK1: pure N9.2kg/ mu (water-soluble ditch spread carbamide 20kg/ mu)；CK2: pure N9.2kg/ mu (conventional ditch spread carbamide 20kg/ mu) CK3: ditch spread equivalent clear water；CK4: do not apply fertilizer and do not execute water.Totally 8 process, each process repeats for 3 times, Gong24Ge community.
1.4 field management
Test in 2012-2013 year and be seeded on October 5th, 2012, test in 2013-2014 year and be seeded on October 3rd, 2013, broadcast preplanting treatment, in conjunction with application of organic fertilizers 1000kg/ mu, compound fertilizer's 40kg/ mu, rotary tillage soil, machine sowing, line-spacing 18cm, the amount of broadcasting 15kg/ mu, the time of infertility does not water except topdressing, and all the other manage routinely, and each cell management is consistent.After maturation, community is entirely taken in row and is surveyed product.
2. result and analysis
2.1 dry land wheats impose the performance of Water soluble fertilizer yield
Table 2. dry land wheat imposes Water soluble fertilizer result of the test spring
Test result analysis shows:
15 process that the dry land wheat phase of standing up topdresses all do not chase after water comparison volume increase than not topdressing, and amount of increase in production 9.64-44.48% on average increases production 26.45%；Urea water lapies is executed, carbamide ditch spread does not chase after water comparison volume increase 24.75% and 19.78% than not topdressing respectively, and water-soluble ditch spread is better than carbamide ditch spread and processes；Optimum fertilizer application formula is that state's light High-efficiency flush fertilizer chases after N13.8kg/ mu, nonirrigated farmland average yield per mu 427.2kg, and ratio imposes the water-soluble ditch spread comparison volume increase 15.8% of carbamide N9.2kg/ mu, is the maximum output that processes of test；Semen Tritici aestivi stand up phase mu water consumption 2000kg furrow irrigation, also have certain effect of increasing production.
2.2 different brands Water soluble fertilizer yield performances are analyzed
Table 3. imposes different brands Water soluble fertilizer yield comparison
By table it can be seen that the yield using state's light High-efficiency flush fertilizer is the highest, for 397.3kg/ mu, ratio Ck2 volume increase 10.33%, occupy first；Next to that the fertilising of potassium sky undershoot, yield is 389.9kg/ mu, increases production 7.7% than Ck2；Occupy the 3rd be red sun sulfenyl punching fertilising, what effect was worst is red sun potassium fulvate, only than Ck2 increase production 1.9%.Think what volume variance that different Water soluble fertilizer causes caused mainly due to the different ratio of NPK.
2.3 dry land wheat spring chased after the impact on yield of the N fertilizer amount
Test sets and chases after N4.6kg/ mu, 9.2kg/ mu, three process levels of 13.6kg/ mu, and difference chases after N and measures wheat yield in Table 4:
Table 4. chases after the impact on dry land wheat yield of the N fertilizer amount spring
Result shows: three chase after the horizontal wheat yield of N process and increase with the increase making consumption, to chase after N amount 13.8kg/ mu and 9.2kg/ mu, effect of increasing production becomes apparent from, and ratio CK2 increases production 10.4% and 7.6% respectively, though chase after N to measure 4.6kg/ mu than CK1 volume increase 20.3% of not applying fertilizer, but than the CK2 underproduction 3.6%.
Though comprehensive analysis chases after N and measure 13.8kg/ mu effect of increasing production and measure the performance volume increase of 9.2kg/ mu than chasing after N, but difference is notable, integrated economics performance analysis, and the dry land wheat N that topdresses spring measures 9.2kg/ mu ratio conveniently.2.4 dry land wheats impose Water soluble fertilizer the best fertilizer ratio spring
Showing according to 2012-2013 year result of the test, the yield using state's light High-efficiency flush fertilizer is the highest, chases after N and measures at 9.2kg/ mu ratio conveniently, 2013-2014 year, what refine state's light High-efficiency flush fertilizer makes consumption, imposes Water soluble fertilizer the best fertilizer ratio spring to selecting dry land wheat, and result is in Table 5.
Table 5.2013-2014 imposes the performance of Water soluble fertilizer yield spring in year
By analyzing it is found that process C4: pure N11.5kg/ mu (state's light High-efficiency flush fertilizer 38kg/ mu+15kg/ mu carbamide) yield is the highest, for 415.6Kg/ mu, ratio CK3 volume increase 31.4%, but not notable with the process difference imposing pure N9.2Kg/ mu.The C3 imposing identical leaded wastewater increases production 10.2% than CK1, illustrates that the effect of state's light High-efficiency flush fertilizer is better with carbamide than only, and the NPK ratio applicable Semen Tritici aestivi thought in state's light High-efficiency flush fertilizer topdresses spring.And water-soluble carbamide imposes and imposes output increased 8.2% than Conventional urea, consistent with result of the test upper one year.Comprehensively thinking that dry land wheat imposes Water soluble fertilizer optimal fertilizer ratio spring is pure N9.2kg/ mu (state's light High-efficiency flush fertilizer 38kg/ mu+10kg/ mu carbamide).
2.5 dry land wheats impose Water soluble fertilizer N element agronomy efficiency analysis spring
In testing in 2012-2013 year, imposing the economic flow rate that water-soluble carbamide (containing pure N9.2kg/ mu) processes than clear water and improve 13.8%, N element agronomy utilization rate is 4.9；Impose the economic flow rate that water-soluble state light punching fertilising (containing pure N9.2kg/ mu) processes than clear water and improve 23.5%, the agronomy utilization rate of N element is 8.3, the fertile average agronomy utilization rate of 2005-2008 Huang-Huai-Hai region N is 4.7, the agronomy utilization rate imposing water-soluble state light punching fertilising N element improves 176%, impose carbamide by the discovery of analysing output element and wheat grains per spike is mainly made a significant impact thus improving yield by state's light Water soluble fertilizer, because the cob nodal plate differentiation of Semen Tritici aestivi and spikelet sprimordium differentiation mainly complete to the initial stage in April at late March, namely stand up the phase, therefore impose Water soluble fertilizer spring and be just met for this critical period demand to N element.And the use of state's light High-efficiency flush fertilizer can significantly improve the agronomy utilization ratio of N element, the proportioning of visible rational P and K can greatly facilitate the absorption of N, and the efficient Water soluble fertilizer of state's light impose the demand also supplementing this differentiation critical period to P and K, therefore economic flow rate and biological yield are all improved largely.
Table 6.2012-2013 imposes Water soluble fertilizer agronomy efficiency analysis table spring in year
2.6 dry land wheats impose Water soluble fertilizer WUEL spring
In testing in 2012-2013 year, dry land wheat ditch spread in spring clear water processes (CK4) and does not chase after water process (CK1) output increased 9.6% than not topdressing, biological yield improves 14.1%, average per kilogram water improves grain yield 0.014kg, improve grain yield 1kg to need to use water 70kg, comparing dry land wheat water consumption coefficient (referring to the water consumption of unit grain yield) 800-1000, efficiency of water application improves 14 times.The phase of standing up is the critical period that Semen Tritici aestivi needs water, and this stage in period water requirement is 21m3/ mu, cannot meet this water consumption when territory, black Longgang District is limit and adopted comprehensively, pass through 2m3Supplementing of water, reduces the water consumption coefficient of Semen Tritici aestivi while improving yield, improves WUEL.
3. discuss
By result of the test and theory analysis it can be assumed that impose Water soluble fertilizer spring, water consumption is little, obvious effect of increasing production, and can improve liquid manure utilization ratio, solves the technical problem that dry land wheat imposes, and is a kind of Beneficial.Owing to water soluble composite fertilizer price is higher, adding the production cost of dry land wheat, theoretical research thinks that wheatear breaks up phase element demand of namely standing up period and is: pure N:3.09kg/ mu, pure P:1.0kg/ mu, pure K:4.42kg/ mu.Imposing preferred plan in this research is: 38kg/ mu state's light High-efficiency flush fertilizer and 10kg/ mu carbamide, is dissolved in 2000kg water, ditch spread earthing.In the program, N, P, K content is respectively as follows: 9.2kg, 3.04kg, 7.6kg, substantially conform to the demand percentage of N, P, the K of this period in theoretical research, simply K element is lower slightly, according to Cangzhou Area overall survey of soil result in 2002, the few phosphorus richness potassium of soil constituent nitrogen stress, therefore this formula is applicable to HeiLonggang District, and meets wheat growth feature.So imposing Water soluble fertilizer technical essential spring it is: stand up phase 2m3Water fully dissolves appropriate NPK compound Water soluble fertilizer so that N, P, K content respectively 9.2kg, 3.0kg, 7.6kg, earthing after ditch spread.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every equivalent structure utilizing description of the present invention to make or equivalence flow process conversion; or directly or indirectly it is used in other relevant technical fields, all in like manner include in the scope of patent protection of the present invention.
Claims (4)
1. a Heilongjing River rain supports Dryland winter wheat implantation methods, it is characterised in that comprise the following steps:
Step 1, winter wheat variety select
Select the wheat breed that drought resistance and salt tolerance is got bumper crops, winter habit is strong；
Step 2, apply fertilizer to the subsoil
Every mu of bottom application fertilizer 1000kg-1500kg, applies during seedbed preparation, compound fertilizer 30kg-50kg；
Step 3, indention density
Semen Tritici aestivi line-spacing is 15cm-18cm, the mu amount of broadcasting 15kg within Semen Tritici aestivi suitable date of seeding；
Step 4, finely sow
Seed level 3cm-5cm；
Step 5, severe are suppressed
After broadcasting, before the winter, severe suppression in spring；
Step 6, spring impose Water soluble fertilizer
Stand up to topdress around phase at Semen Tritici aestivi；Fertilizer is NPK compound quick-acting Water soluble fertilizer or carbamide, and the nitrogen of about 10kg is dissolved in 2m by every mu3-3m3In water, carry out topdressing spring after fully dissolving.
Step 7, disease pest and weed are prevented and treated
The disease pest and weeds such as powdery mildew, rust, aphid, midge worm and all kinds of weeds that wheatland is occurred are prevented and treated in time.
2. Heilongjing River rain according to claim 1 supports Dryland winter wheat implantation methods, it is characterised in that the topdressing method in described step 6 is: by the fertilizer solution after dissolving, utilize fertilizer machinery, ditch to impose between two row wheat ridges, and interlacing is applied fertilizer.Apply degree of depth 3cm-5cm, near wheat root.Timely suppression of soil after fertilising.
3. Heilongjing River rain according to claim 1 supports Dryland winter wheat implantation methods, it is characterised in that the chemical agent of high-efficiency low-toxicity noresidue is selected in the disease pest and weed preventing and treating in described step 7.And in conjunction with biological prevention.
4. Heilongjing River rain supports Dryland winter wheat implantation methods according to claim 1, it is characterised in that N, P, K content ratio respectively 9.2:3.0:7.6 in fertilizer in described step 6.
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| CN110972657A (en) * | 2019-12-06 | 2020-04-10 | 安徽省农业科学院棉花研究所 | Fertilizing method for spring cotton in boll stage |
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