CN102863291B - Flue-cured tobacco slow release fertilizer and application method thereof - Google Patents
Flue-cured tobacco slow release fertilizer and application method thereof Download PDFInfo
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- CN102863291B CN102863291B CN201210394541.8A CN201210394541A CN102863291B CN 102863291 B CN102863291 B CN 102863291B CN 201210394541 A CN201210394541 A CN 201210394541A CN 102863291 B CN102863291 B CN 102863291B
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Abstract
The invention discloses a flue-cured tobacco slow release fertilizer and an application method thereof and solves problems that slow/controlled release fertilizers in prior art are high in production cost and complicated in technological process and membrane materials remained in the soil after fertilizer nutrients are released cause secondary pollution on soil environments. The the flue-cured tobacco slow release fertilizer is mainly composed of following components of, by weight, 8.48-9.78g of urea, 10.58-12.50g of monopotassium phosphate, 20.00-23.08g of potassium nitrate, 12.40-14.26g of potassium sulphate, 0.52-1.10g of cane sugar and 0.20-0.30g of carbofuran. According to the flue-cured tobacco slow release fertilizer and the application method thereof, the number of fertilizer applying can be reduced, labor intensity for applying the fertilizer is reduced, utilization efficiencies of the fertilizer are improved, environmental pollution is reduced and the flue-cured tobacco slow release fertilizer is low in production cost, simple in process, convenient to use and easy to popularize.
Description
Technical field
The invention belongs to new-type fertilizer technical field, be specifically related to a kind of flue-cured tobacco slow release fertilizer and application method thereof.
Background technology
Fertilising is one of agronomic measures important in cured tobacco production.The common N,P,K fertilizers that current cured tobacco production is used is particulate state or powdery, this kind of fertilizer is readily dissolved in water very much, after using, is dissolved by rainwater or irrigation water, flow into rivers with water or permeate the ground, causing the pollution of surface drainage system or body of groundwater on the one hand; On the other hand, the utilising efficiency of fertilizer is reduced.In cured tobacco production, general base fertilizer mainly contains oil cake, fertilizer special for tobacco composite fertilizer, potassium sulfate, saltpetre etc.; Flue-cured tobacco transplanting 7 ~ 15 days, often needs to impose 1 ~ 2 nitroxylic acid potassic fertilizer and carries out carrying seedling; Flue-cured tobacco transplanting 25 ~ 30 days, also needs to impose 1 Special compound fertilizer for tobacco and saltpetre.During Fertilizer Application of Tobacco operation, temperature is higher, and physical work is taken in the really pole of this work for tobacco grower, and dry several hours continuously, just can complete the fertilising operation on several mu of ground.So the subject matter existed of applying fertilizer in cured tobacco production is that fertilizer application frequency is many, work is slightly large, time-consuming and fertilizer this season utilising efficiency is low.Slowly/controlled releasing fertilizer refers to that fertilizer nutrient rate of release is slow, and release period is longer, at the fertilizer that can meet plant growth demand whole vegetative period of crop.Compare with conventional variety fertilizer, its advantage is fertilizer nutrient release slowly, can meet the nutrient needed for whole growth breeding time of crop, can reduce fertilizer amount, economize on resources, improve fertilizer this season utilization ratio.Therefore, slowly/controlled releasing fertilizer can be good at solving in above-mentioned cured tobacco production the Problems existing that applies fertilizer.Most widely used is at present Envelope type slowly/controlled releasing fertilizer, its coated fertilizer mainly contains inorganics (as silicon, sulphur, gypsum, phosphoric acid salt, diatomite etc.), organic high molecular polymer (as gum arabic, gelatin, natural rubber, polyethylene, urea formaldehyde condensates, thermosetting resin etc.) and organic-inorganic composite body (as glycopolymers, polyvinyl alcohol, starch, lipid acid etc.).Slow/control fertiliser production cost is high, technical process is complicated, the mould material remained in soil causes secondary pollution problems to exist to edatope after nutrients release.Because slow/control fertilizer is expensive, generally high than common fertilizer price 2.5 ~ 8 times, therefore slowly/controlled releasing fertilizer major applications is in flowers, vegetables, strawberry, lawn etc. that economic worth is higher produce, and field crop large scale application is less.
Summary of the invention
The object of the present invention is to provide a kind of flue-cured tobacco slow release fertilizer and application method thereof, solve that current slowly/controlled releasing fertilizer production cost is high, technical process is complicated and after fertilizer nutrient release, the mould material remained in soil causes the problem of secondary pollution to edatope.
Realize technical scheme of the present invention as follows:
A kind of flue-cured tobacco slow release fertilizer, the component primarily of following weight forms:
Urea 8.48 ~ 9.78g
Potassium primary phosphate 10.58 ~ 12.50g
Saltpetre 20.00 ~ 23.08g
Potassium sulfate 12.40 ~ 14.26g
Sucrose 0.52 ~ 1.10g
Furadan 0.20 ~ 0.30g.
Further, described fertilizer forms primarily of the component of following weight: urea 9.13g, potassium primary phosphate 11.66g, saltpetre 21.54g, potassium sulfate 12.26g, sucrose 0.88g, Furadan 0.25g.
An application method for flue-cured tobacco slow release fertilizer, comprises the following steps:
(1) on the tobacco planting ridge of having built in advance, beat nest, the spacing on adjacent tobacco planting ridge is 110 ~ 120cm;
(2) apply the fertilizer of 100% needed for tobacco growth, backfill a small amount of soil, and after fertilizer and reclaimed soil being stirred, apply 1 bag of flue-cured tobacco slow release fertilizer, then reclaimed soil is in nest;
(3) on reclaimed soil, do cave, transplant cigarette seedling, water enough water according to soil moisture content;
(4) moisture immerses after soil, and earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, and seedling is drawn mulch film from having empty place, and around hole earthing.
Further, described step (1) specifically beats the nest of circular platform type on tobacco planting ridge, the dark 10 ~ 15cm of nest, diameter 5 ~ 10cm at the bottom of nest, nest face diameter 15 ~ 20cm, the spacing 55 ~ 65cm of adjacent nest.
Again further, described flue-cured tobacco slow release fertilizer be urea, potassium primary phosphate, saltpetre, potassium sulfate, sucrose and Furadan are mixed in proportion stir after to load in fertilizer slow release bag obtained finished product.
Further, described fertilizer slow release bag is made by kraft paper, and its long 15cm, wide 10cm.
In addition, it is the micropore of 0.5mm that described fertilizer slow release bag surface is provided with 9 row diameters, and line space is 10mm; Wherein, in every a line, the spacing of adjacent cells is 2mm.
Compared with prior art, the present invention has the following advantages and beneficial effect:
(1) the present invention is with the kraft paper of cheapness for fertilizer slow release bag prepared by material, reduces the production cost of slow-release fertilizer, and kraft paper fully biodegradable, decreases soil pollution simultaneously;
(2) the present invention is with fertilizer slow release bag for carrier, will load in bag according to the fertilizer made of filling a prescription, finally edge sealing again, and obtain flue-cured tobacco slow release fertilizer product, technical process is simple;
(3) the present invention is by the aperture of micropore and the speed of micropore regulating and controlling of quantities nutrients release on fertilizer slow release bag, fertilizer nutrient is made to discharge slowly, release period is longer, sufficient nutrient supply is had within flue-cured tobacco whole breeding time, the leaching decreasing the residual and fertilizer of fertilizer in soil runs off, and greatly can improve fertilizer this season utilising efficiency;
(4) the present invention once uses when flue-cured tobacco transplanting, and tobacco growth is interior without the need to imposing other fertilizer for season, economizes fertilizer, saving of labor, saves money;
(5) the present invention can make tobacco growth very fast and stable, is conducive to the reasonable absorption of flue-cured tobacco to nutritive ingredient, can increases flue-cured tobacco area in right amount, and don't cause the excessive growth of flue-cured tobacco, meets flue-cured tobacco each breeding time to the requirement of nutrient;
(6) the present invention can reduce fertilizer application frequency, reduces labor of fertilizer application intensity, improves fertilizer utilization efficiency, reduces environmental pollution, and low production cost, technical process is simple, easy to use, is easy to promote the use of.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
Embodiment 1
First prepare fertilizer slow release bag, specifically select long 15cm, the kraft paper of wide 20cm, kraft paper is equidistant folding along broadside, form long 15cm, the sack of wide 10cm, finally seal long limit and the side broadside of sack with bag sealer.Be the micropore of 0.5mm with each 9 row diameters of making a call to of instrument on the surface of the sack both sides prepared again, and line space is 10mm; Wherein, the spacing between every a line adjacent cells is 2mm.
Then weigh urea 9.13g, potassium primary phosphate 11.66g, saltpetre 21.54g, potassium sulfate 12.26g, sucrose 0.88g, Furadan 0.25g, and mixed; The material finally will mixed, loads in the fertilizer slow release bag prepared, last edge sealing, just obtained finished product.
During use, nest is beaten on the tobacco planting ridge of the spacing 110cm built in advance, on tobacco planting ridge, specifically beats the nest of circular platform type, the dark 13cm of nest, diameter 7cm at the bottom of nest, nest face diameter 18cm, nest spacing 65cm.First the fertilizer (every strain applies rapeseed cake fertilizer 25g usually) of needed for tobacco growing 100% is applied, backfill a small amount of soil, and after fertilizer and reclaimed soil are stirred, then applying one bag of flue-cured tobacco slow release fertilizer of the present invention, last reclaimed soil is in nest.On reclaimed soil, do cave again, transplant cigarette seedling, water enough water according to soil moisture content.After water fully immerses soil, earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, by seedling from have hole place draw mulch film, and around hole earthing, to prevent moisture loss.
Embodiment 2
First prepare fertilizer slow release bag, specifically select long 15cm, the kraft paper of wide 20cm, kraft paper is equidistant folding along broadside, form long 15cm, the sack of wide 10cm, finally seal long limit and the side broadside of sack with bag sealer.Be the micropore of 0.5mm with each 9 row diameters of making a call to of instrument on the surface of the sack both sides prepared again, and line space is 10mm; Wherein, the spacing between every a line adjacent cells is 2mm.
Then weigh urea 9.30g, potassium primary phosphate 10.87g, saltpetre 22.32g, potassium sulfate 12.89g, sucrose 1.00g and Furadan 0.20g, and mixed; The material finally will mixed, loads in the fertilizer slow release bag prepared, last edge sealing, just obtained finished product.
During use, nest is beaten on the tobacco planting ridge of the spacing 120cm built in advance, on tobacco planting ridge, specifically beats the nest of circular platform type, the dark 14cm of nest, diameter 8cm at the bottom of nest, nest face diameter 20cm, nest spacing 55cm.First the fertilizer (every strain applies rapeseed cake fertilizer 30g usually) of needed for tobacco growing 100% is applied, backfill a small amount of soil, and after fertilizer and reclaimed soil are stirred, then applying one bag of flue-cured tobacco slow release fertilizer of the present invention, last reclaimed soil is in nest.On reclaimed soil, do cave again, transplant cigarette seedling, water enough water according to soil moisture content.After water fully immerses soil, earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, by seedling from have hole place draw mulch film, and around hole earthing, to prevent moisture loss.
The effect of the present invention on flue-cured tobacco:
Test 1
Test method: test point is positioned at unity village, Yao local, Guangyuan City Jiange County, to plant flue-cured tobacco cultivars cloud and mist 97 kind for supplying examination material as landlord.Nest is beaten, the dark 12cm of nest, diameter 6cm at the bottom of nest, nest face diameter 20cm, nest spacing 55cm in the tobacco planting ridge of the spacing 120cm built in advance.First apply the fertilizer (namely every strain applies rapeseed cake fertilizer 25g) of needed for tobacco growing 100%, backfill a small amount of soil, and after fertilizer and reclaimed soil are stirred, then applying 1 bag of flue-cured tobacco slow release fertilizer of the present invention, last reclaimed soil is in nest.On reclaimed soil, do cave again, transplant cigarette seedling, water enough water according to soil moisture content.After water fully immerses soil, earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, by seedling from have hole place draw mulch film, and around hole earthing, to prevent moisture loss.With individual plant flue-cured tobacco for research object, the 14th, 28,42,56,70 and 84 day after flue-cured tobacco transplanting, take out fertilizer bag, under 105 DEG C of conditions, with baking oven the fertilizer drying in fertilizer bag to weight, then weigh weight of fertilizer.Fertilizer dead weight amount × 100 in fertilizer bag nutrient release rate (%)=(in fertilizer dead weight amount in untreated fertilizer bag-different times sampling fertilizer bag fertilizer dead weight amount)/untreated fertilizer bag.Different times slow release fertilizer nutrient release rate is in table 1.
Table 1
| Number of days | 14 | 28 | 42 | 56 | 70 | 84 |
| Nutrient release rate (%) | 16.8 | 18.8 | 32.2 | 56.8 | 68.1 | 86.3 |
Research shows that the absorption of flue-cured tobacco to nutrient roughly has three phases, and being first nutrient demand lag phase, following by nutrient demand peak period, is finally nutrient demand stationary phase.Flue-cured tobacco is within the scope of generally after flue-cured tobacco transplanting 30 ~ 65 days, nutrient demand peak period.Table 1 shows, within the scope of after flue-cured tobacco transplanting 0 ~ 42 day of the present invention, nutrient release rate is 32.2%; Within the scope of 42 ~ 70 days after flue-cured tobacco transplanting, nutrient release rate is 32.2% ~ 68.1%.Nutrients release of the present invention is described with flue-cured tobacco to nutrient demand basic synchronization.
Test 2
Test method: test point is positioned at Mianning County in Liangshan Prefecture country tobacco bases unit, to plant flue-cured tobacco cultivars Yun yan85 kind as landlord for supplying examination material, adopt field district test, flue-cured tobacco is divided into 2 groups of process, first group is control group, planting density is 120cm × 55cm, be a community to plant 60 strain cigarettes, and fertilizing method plants flue-cured tobacco routinely, weigh fertilizer special for tobacco (N:P5O2:K2O=10:15:25) 1.49kg, calcium superphosphate 1.49kg, potassium sulfate 0.59kg, become thoroughly decomposed oil cake 1.49kg, stir after above-mentioned fertilizer is weighed, then the dark 13cm accomplished fluently on cigarette ridge is in advance spread fertilizer over the fields, diameter 10cm at the bottom of nest, nest face diameter 20cm, in the plantation nest of nest spacing 55cm, cave is done again on reclaimed soil, transplant cigarette seedling, enough water is watered according to soil moisture content.After water fully immerses soil, earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, by seedling from have hole place draw mulch film, and around hole earthing, to prevent moisture loss.During flue-cured tobacco transplanting 7 ~ 15 days, the saltpetre of 0.89kg is converted into aqueous fertilizer solution, then water cigarette seedling uniformly, the amount of being watered is according to soil moisture content, and ground moistening is, is watered less, and soil drought then more to be watered.When flue-cured tobacco transplanting 25 ~ 30 days, when taking off film ridging, fertilizer special for tobacco (N:P5O2:K2O=10:15:25) 0.89kg is being applied each cigarette nest uniformly.Second group is that test group uses flue-cured tobacco slow release fertilizer of the present invention, and planting density is 120cm × 55cm, is a community, first on tobacco planting ridge, beats dark 13cm, diameter 10cm at the bottom of nest, the plantation nest of nest face diameter 20cm, nest spacing 55cm to plant 60 strain cigarettes.The oil cake 1.49kg become thoroughly decomposed evenly is applied each cigarette nest, backfills a small amount of soil, and after fertilizer and reclaimed soil are stirred, then applying 1 bag of flue-cured tobacco slow release fertilizer of the present invention, last reclaimed soil is in nest.On reclaimed soil, do cave again, transplant cigarette seedling, water enough water according to soil moisture content.After water fully immerses soil, earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, by seedling from have hole place draw mulch film, and around hole earthing, to prevent moisture loss.Tobacco growth does not use any topdressing in season.Each community repeats 3 times, and random district, experimental plot group arranges.Community is taken off the management such as film ridging, disease and pest and is accustomed to local farmers.The plant height of 10 strain flue-cured tobaccos, stem girth, pitch, effective blade number, maximum leaf length and maximum width of blade is measured at random in the every community of flue-cured tobacco Topping Stage.After tobacco leaf enters harvesting time, timely collecting and science are modulated, and pluck the principle that baking is plucked according to sound tobacco, and leaf form and aspect are near, and the tobacco leaf that ripening degree is consistent is gathered, and adopt intensive barn curing, three section of five step formula baking process.Gathering separately in each community, compiles pole separately, toasts separately, and independent classification, meter are produced, and carry out classification according to GB 42 grades of systems, calculate output respectively, and the ratio of first-class cigarette, medium grade cigarette and lower inferior cigarette and economic benefit.Get the middle part tobacco leaf 2.0kg of two treatment group flue-cured tobaccos respectively, send tobacco industry product quality supervision and inspection test center of the Ministry of Agriculture to carry out tobacco leaf chemical composition mensuration.Topping Stage flue-cured tobacco economical character the results are shown in Table 2, and yield of flue-cured tobacco and the output value are in table 3, and flue-cured tobacco grade ratio is in table 4, and flue-cured tobacco intrinsic chemical quality is in table 5.
Table 2
| Group | Plant height (cm) | Stem girth (cm) | Pitch (cm) | Effective blade number | Leaf area (m 2） |
| Control group | 103.29 | 7.56 | 4.14 | 18.71 | 0.13 |
| Test group | 110.38 | 7.64 | 3.88 | 20.63 | 0.16 |
Table 2 shows, the present invention significantly can improve the economical character of flue-cured tobacco Topping Stage.The plant height of flue-cured tobacco Topping Stage of the present invention, stem girth, effective blade number and maximum leaf area are apparently higher than the process of control group, and flue-cured tobacco pitch of the present invention is less than control group process.Illustrate that the present invention has the effect promoting the thick stem of flue-cured tobacco, short pitch, increase effective blade number, increase leaf area at flue-cured tobacco Topping Stage.
Table 3
| Group | Output (kg/ mu) | The output value (unit/mu) |
| Control group | 162.7 | 2093.0 |
| Test group | 186.0 | 2387.6 |
Table 3 shows, the every per mu yield of flue-cured tobacco of the present invention can reach 186.0kg, and the every per mu yield of control group peasant habit tobacco leaf is 162.7kg, and yield of tobacco of the present invention can increase 23.3kg than peasant habit every mu yield of tobacco, and stimulation ratio reaches 14.3%.Tobacco leaf per mu yield value of the present invention reaches 2387.6 yuan, increases by 294.6 yuan than the peasant habit every mu tobacco leaf output value, and tobacco leaf per mu yield value can improve 14.1%.Show that the present invention can significantly improve the output of tobacco leaf, increase the economic benefit of tobacco planting.Meanwhile, when using of the present invention, only need disposablely when flue-cured tobacco transplanting apply, flue-cured tobacco late growth stage no longer uses any fertilizer, compared with tobacco grower's habits fertilization, can reduce flue-cured tobacco 1 ~ 2 fertilizer application frequency, can reduce recruitment simultaneously, reduces labor of fertilizer application intensity.Illustrate that the present invention has the effect subtracting work, fall basis, upgrading, synergy in cured tobacco production.
Table 4
| Group | First-class cigarette (%) | Medium grade cigarette (%) | Lower inferior cigarette (%) |
| Control group | 42.51 | 35.75 | 21.74 |
| Test group | 47.84 | 34.07 | 18.09 |
Table 4 is the impact of different treatment on tobacco leaf degree ratio, and in the present invention, medium tobacco leaf ratio reaches 81.9%, and on control group, medium tobacco leaf ratio reaches 78.3%; With regard to first-class tobacco leaf and medium tobacco leaf proportion, control group and the first-class tobacco leaf proportion of test group are respectively 42.5% and 47.8%, and medium tobacco leaf proportion is respectively 35.8% and 34.1%; Under control group and test group, inferior tobacco leaf proportion is respectively 21.7% and 18.1%.Illustrate that the present invention can improve first-class tobacco leaf proportion, reduce lower inferior tobacco leaf proportion.
Table 5
| Group | Total reducing sugar (%) | Reducing sugar (%) | Total alkaloid (%) | Chlorine (%) | Potassium (%) | Total nitrogen (%) | Sugar alkali ratio | Nitrogen base ratio | Potassium chlorine ratio |
| Control group | 38.70 | 29.90 | 1.57 | 0.12 | 2.20 | 1.49 | 19.04 | 0.95 | 18.33 |
| Test group | 33.70 | 26.90 | 1.40 | 0.13 | 2.47 | 1.45 | 19.21 | 1.04 | 19.00 |
Table 5 is the impact analysis result of different treatment to tobacco leaf chemical quality, and from the analytical results of table 5, the present invention significantly reduces total reducing sugar, reducing sugar, total alkaloid and total nitrogen content, adds the content of chlorine and potassium.Illustrate that the present invention makes tobacco leaf intrinsic chemical quality more be tending towards coordinating.
In sum, use flue-cured tobacco slow release fertilizer of the present invention, its nutrients release is almost synchronous to the demand of nutrient with flue-cured tobacco, can improve fertilizer utilization efficiency; Use the present invention and can reduce by 1 ~ 2 fertilizer application frequency, can recruitment be reduced simultaneously, reduce labor of fertilizer application intensity; The present invention can increase yield of tobacco, improves the tobacco leaf output value, improves tobacco leaf exterior quality, coordinates intrinsic chemical composition.The present invention has the effect subtracting work, fall basis, upgrading, synergy in cured tobacco production.
Claims (7)
1. a flue-cured tobacco slow release fertilizer, is characterized in that, the component primarily of following weight forms:
Urea 8.48 ~ 9.78g
Potassium primary phosphate 10.58 ~ 12.50g
Saltpetre 20.00 ~ 23.08g
Potassium sulfate 12.40 ~ 14.26g
Sucrose 0.52 ~ 1.10g
Furadan 0.20 ~ 0.30g;
Above-mentioned all components is all built in the fertilizer slow release bag be made by kraft paper;
Wherein, described fertilizer slow release bag is made by kraft paper, and its long 15cm, wide 10cm; And on fertilizer slow release bag surface, to be provided with 9 row diameters be the micropore of 0.5mm, and line space is 10mm; Wherein, in every a line, the spacing of adjacent cells is 2mm;
Its application method is as follows:
(1) on the tobacco planting ridge of having built in advance, beat nest, the spacing on adjacent tobacco planting ridge is 110 ~ 120cm;
(2) apply the fertilizer of 100% needed for tobacco growth, backfill a small amount of soil, and after fertilizer and reclaimed soil being stirred, apply 1 bag of flue-cured tobacco slow release fertilizer, then reclaimed soil is in nest;
(3) on reclaimed soil, do cave, transplant cigarette seedling, water enough water according to soil moisture content;
(4) moisture immerses after soil, and earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, and seedling is drawn mulch film from the place having hole, and around hole earthing.
2. a kind of flue-cured tobacco slow release fertilizer according to claim 1, is characterized in that, described fertilizer forms primarily of the component of following weight: urea 9.13g, potassium primary phosphate 11.66g, saltpetre 21.54g, potassium sulfate 12.26g, sucrose 0.88g, Furadan 0.25g.
3. the application method of a kind of flue-cured tobacco slow release fertilizer according to claim 1 and 2, is characterized in that, comprise the following steps:
(1) on the tobacco planting ridge of having built in advance, beat nest, the spacing on adjacent tobacco planting ridge is 110 ~ 120cm;
(2) apply the fertilizer of 100% needed for tobacco growth, backfill a small amount of soil, and after fertilizer and reclaimed soil being stirred, apply 1 bag of flue-cured tobacco slow release fertilizer, then reclaimed soil is in nest;
(3) on reclaimed soil, do cave, transplant cigarette seedling, water enough water according to soil moisture content;
(4) moisture immerses after soil, and earthing also covers mulch film, then on the film of corresponding position, opens the hole that diameter is 5cm, and seedling is drawn mulch film from the place having hole, and around hole earthing.
4. the application method of a kind of flue-cured tobacco slow release fertilizer according to claim 3, is characterized in that, described step (1) specifically beats the nest of circular platform type on tobacco planting ridge, dark 10 ~ the 15cm of nest, diameter 5 ~ 10cm at the bottom of nest, nest face diameter 15 ~ 20cm, the spacing 55 ~ 65cm of adjacent nest.
5. the application method of a kind of flue-cured tobacco slow release fertilizer according to claim 4, it is characterized in that, described flue-cured tobacco slow release fertilizer be urea, potassium primary phosphate, saltpetre, potassium sulfate, sucrose and Furadan are mixed in proportion stir after to load in fertilizer slow release bag obtained finished product.
6. the application method of a kind of flue-cured tobacco slow release fertilizer according to claim 5, is characterized in that, described fertilizer slow release bag is made by kraft paper, and its long 15cm, wide 10cm.
7. the application method of a kind of flue-cured tobacco slow release fertilizer according to claim 6, is characterized in that, it is the micropore of 0.5mm that described fertilizer slow release bag surface is provided with 9 row diameters, and line space is 10mm; Wherein, in every a line, the spacing of adjacent cells is 2mm.
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| CN105557164A (en) * | 2015-12-16 | 2016-05-11 | 广西壮族自治区林业科学研究院 | Slow release method for forest fertilizer nutrients |
| CN107258259A (en) * | 2017-05-11 | 2017-10-20 | 贵州省烟草公司遵义市公司绥阳县分公司 | The ecological cultivation method that flue-cured tobacco is no-tillage |
| CN107162745A (en) * | 2017-05-26 | 2017-09-15 | 四川农业大学 | A kind of preparation method of flue-cured tobacco charcoal base slow released fertilizer |
| CN107646276B (en) * | 2017-11-18 | 2020-09-11 | 云南省烟草农业科学研究院 | Flue-cured tobacco cultivation method capable of effectively improving field resistance of tobacco plants |
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| US20070227212A1 (en) * | 2006-03-30 | 2007-10-04 | He Zhenli L | Materials and methods for preparing dolomite phosphate rock-based soil amendments and fertilizers |
| CN201479588U (en) * | 2009-03-30 | 2010-05-26 | 新疆农业科学院土壤肥料与农业节水研究所 | Fruit tree bag-shaped controlled release fertilizer bag |
| CN101904259A (en) * | 2010-07-06 | 2010-12-08 | 贵州省烟草科学研究所 | Method for improving quality of tobacco leaves |
| CN102060591B (en) * | 2010-11-29 | 2013-03-20 | 罗定棋 | Compound fertilizer special for flue-cured tobacco |
| CN102180751B (en) * | 2011-02-18 | 2012-04-25 | 菏泽金正大生态工程有限公司 | Special anti-disease controlled-release fertilizer for Yunnan flue-cured tobacco, and preparation and application thereof |
| CN102249778A (en) * | 2011-05-13 | 2011-11-23 | 江西省农业科学院土壤肥料与资源环境研究所 | Fertilizer special for tobacco in red soil regions of River South |
| CN102584387A (en) * | 2012-01-16 | 2012-07-18 | 四川农业大学 | Nitrogen, phosphorus and potassium compound fertilizer for tobacco 97 and application method for fertilizer |
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