CN105723906B - A kind of mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer - Google Patents
A kind of mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer Download PDFInfo
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- CN105723906B CN105723906B CN201610087477.7A CN201610087477A CN105723906B CN 105723906 B CN105723906 B CN 105723906B CN 201610087477 A CN201610087477 A CN 201610087477A CN 105723906 B CN105723906 B CN 105723906B
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- 238000000034 method Methods 0.000 title claims abstract description 71
- 239000000618 nitrogen fertilizer Substances 0.000 title claims abstract description 69
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 65
- 235000009566 rice Nutrition 0.000 title claims abstract description 65
- 102100035024 Carboxypeptidase B Human genes 0.000 title claims abstract 30
- 101000946524 Homo sapiens Carboxypeptidase B Proteins 0.000 title claims abstract 30
- 240000007594 Oryza sativa Species 0.000 title 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 256
- 239000004202 carbamide Substances 0.000 claims abstract description 139
- 239000003337 fertilizer Substances 0.000 claims abstract description 120
- 241000209094 Oryza Species 0.000 claims abstract description 68
- 230000004720 fertilization Effects 0.000 claims abstract description 24
- 210000003608 fece Anatomy 0.000 claims abstract description 16
- 239000010871 livestock manure Substances 0.000 claims abstract description 16
- 208000000509 infertility Diseases 0.000 claims abstract description 4
- 230000036512 infertility Effects 0.000 claims abstract description 4
- 231100000535 infertility Toxicity 0.000 claims abstract description 4
- 108010064470 polyaspartate Proteins 0.000 claims description 104
- 235000015097 nutrients Nutrition 0.000 claims description 36
- 230000000243 photosynthetic effect Effects 0.000 claims description 19
- 239000002689 soil Substances 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 15
- 241000196324 Embryophyta Species 0.000 claims description 8
- 230000004069 differentiation Effects 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 8
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 150000001768 cations Chemical class 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 238000010561 standard procedure Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 238000009396 hybridization Methods 0.000 claims description 2
- 238000007873 sieving Methods 0.000 claims description 2
- 239000003086 colorant Substances 0.000 claims 1
- 210000002700 urine Anatomy 0.000 claims 1
- 239000000155 melt Substances 0.000 abstract description 3
- 235000013877 carbamide Nutrition 0.000 description 113
- 229920000805 Polyaspartic acid Polymers 0.000 description 93
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 22
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 8
- 229940072033 potash Drugs 0.000 description 8
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 8
- 235000015320 potassium carbonate Nutrition 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 235000013339 cereals Nutrition 0.000 description 5
- 230000002708 enhancing effect Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000005696 Diammonium phosphate Substances 0.000 description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical group [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 2
- 125000003368 amide group Chemical group 0.000 description 2
- 230000031016 anaphase Effects 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical group [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 2
- 229910000388 diammonium phosphate Inorganic materials 0.000 description 2
- 235000019838 diammonium phosphate Nutrition 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 239000010903 husk Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000029553 photosynthesis Effects 0.000 description 2
- 238000010672 photosynthesis Methods 0.000 description 2
- 108090000765 processed proteins & peptides Proteins 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000007115 recruitment Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000013268 sustained release Methods 0.000 description 2
- 239000012730 sustained-release form Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- DWNBOPVKNPVNQG-LURJTMIESA-N (2s)-4-hydroxy-2-(propylamino)butanoic acid Chemical compound CCCN[C@H](C(O)=O)CCO DWNBOPVKNPVNQG-LURJTMIESA-N 0.000 description 1
- 241000432824 Asparagus densiflorus Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- -1 excutes a law Substances 0.000 description 1
- 238000013401 experimental design Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000014075 nitrogen utilization Effects 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229920001184 polypeptide Polymers 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
- 102000004196 processed proteins & peptides Human genes 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000003971 tillage Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
Abstract
The invention discloses a kind of mixed applying methods of hybrid paddy rice PASP nitrogenous fertilizer, replace common urea with PASP urea moiety, make the base manure used time, PASP urea 60%, common urea 40%, when making ear manuer, PASP urea 50%, and common urea 50%.The application method of hybrid paddy rice PASP nitrogenous fertilizer, the first step, by the 50%-60% of nitrogenous fertilizer needed for the time of infertility, Tanaka is uniformly sprinkled into after revolving field for the first time by the mixed fertilizer of PASP urea and common urea in the mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer, then it is primary that field is revolved again, melts loam mutually；Second step breaks up initial stage for the mixed fertilizer applying of PASP urea and common urea in the luxuriant former base of stem children fringe first using remaining nitrogenous fertilizer as top dressing.The invention proposes efficient fertilization mode is simplified using the rice of this specific nitrogenous fertilizer of PASP urea, in saving of labor and efficiently between have found equalization point, the efficient utilization of fertilizer has been taken into account while saving of labor.
Description
Technical field
The invention belongs to the mixed applying method of nitrogenous fertilizer more particularly to a kind of mixed applying methods of hybrid paddy rice PASP nitrogenous fertilizer.
Background technique
With gradually decreasing for arable land, grain " weight and quality " demand develops simultaneously, and it is " double so especially to subtract medicine in weight-reducing
Subtract synergy " environmentally friendly slogan background under, important link of the scientific fertilizer practice as rice high yield Efficient Cultivation administrative skill
Seem increasingly important.
For a long time, it cultivates resistance to fertile kind and a large amount of nitrogenous fertilizer of application is to improve and guarantee that the important of China's rice yield is arranged
It applies, so that the nitrogen fertilizer production amount and consumption figure in China occupy first place in the world, this season utilization rate of nitrogenous fertilizer is but in very low level.
Unreasonable Nitrogen Application Skill results in a large amount of loss of nitrogenous fertilizer, not only increases kind of a rice cost, reduces kind of a rice benefit, largely
The nitrogen of loss also creates serious environmental problem.PASP urea is a kind of synergistic urea newly developed, the application to this fertilizer
It is clear together that peasant mostly uses base fertilizer, although saving manually, the slow releasing function of fertilizer is not so long, after will cause rice
Phase fertilizer is insufficient.In research, " a kind of rice high efficient fertilizing method that essence amount is simplified " that Sun Wentao et al. is proposed though mentioned in patent
Can be administered twice to fertilising nitrogenous fertilizer is simplified, also referring to fertilizer type can be slow-release fertilizer, but not specialise, and it is specially
Fertilizer used is common urea in the example of benefit.
Current existing fertilization of rice method and technology one：
A kind of rice high efficient fertilizing method that essence amount is simplified, fertilizing method be before the soaked field of rice field, using all fertilizer as
Base manure uniformly spreads fertilizer over the fields field face and combines rotary tillage that fertilizer is mixed into topsoil 7-10cm, and then soaked field, pulling plate leveling, no longer impose any
Fertilizer；Or using the inorganic nitrogeneous fertilizer of mass percent 65-80% and all phosphorus potash fertilizers as base manure, field face is uniformly spread fertilizer over the fields and with rotation
It ploughs and fertilizer is mixed into topsoil 7-10cm, remaining inorganic nitrogeneous fertilizer will be imposed all in late tillering state or booting early period, entire to give birth to
Phase no longer imposes fertilizer.Nitrogenous fertilizer can be common urea or slow-release carbamide；Phosphate fertilizer can be Diammonium phosphate (DAP), and potash fertilizer can be potassium chloride or sulphur
Sour potassium.
The shortcomings that prior art one：
Major defect be fertilizer type be common urea when it is not efficient, be slow-release carbamide when again without real example, it is difficult to believe
Clothes.Its method one described is that whole fertilizer make base fertilizer, especially when fertilizer is common urea to the later period may fertilizer efficiency
It loses, is unable to satisfy Later Stage of Rice growth, not can guarantee yield, and utilization rate of fertilizer is very low, do not adapt to present fertilizer and subtract
Measure the demand of synergy.
Existing fertilization of rice method and technology two：
Base manure is used as using 60%-80%, remaining does top dressing, may result in rice milking stage productive phase Nitrogen supplying
Deficiency so as to cause rice floret bears, setting percentage, mass of 1000 kernel decline, and then influences yield.And two methods are also mentioned in patent
In the type of fertilizer can be slow-release carbamide, but its is many kinds of, its fertilizer efficiency release profiles of different slow-release carbamides are not identical, and
Example in patent is common urea, has no the relevant research of slow-release carbamide.
Inorganic fertilizer is disposably applied before soaked field it is impossible to ensure that nitrogen needed for the plant strain growth later period, plant strain growth later period
Fertilizer can be taken off, while one-time use also results in that utilization rate of fertilizer is low, and it is mentioned that slow-release carbamide it is many kinds of, it is different
Its fertilizer release profiles of slow-release carbamide are not identical, even if cannot guarantee that the nitrogen in plant strain growth later period supplies using slow-release carbamide
It answers.Such as according to the method that late tillering state or booting impose early period, then early period, 65-80% was slightly more in fertilizer ratio, may lead
It causes rice milking stage productive phase Nitrogen supplying insufficient, so as to cause rice floret bears, setting percentage, mass of 1000 kernel decline, and then influences to produce
Amount.Meanwhile late tillering state or booting early period are one section of long time, the method operability which mentions is not strong, point
The fertilising of tiller latter stage, will lead to a large amount of generations of ineffective tillering, and the percentage of earbearing tiller is low, and weight occurs for pest and disease damage, and the later period easily lodges.
Secondly potash fertilizer is found in our study, and plant resistant to lodging, drought resisting, disease-resistant can preferably be improved by moving in potash fertilizer
Ability, to improve yield.
It is now to advocate four fertilization methods more, that is, divide base manure, tillering fertilizer, promote fertilizers for potted flowers and protect fertilizers for potted flowers, advocates on a small quantity repeatedly.
The shortcomings that prior art two：
This method can actually improve yield, but substantially increase cost of labor, especially short with rural laborer
Status run counter to.
Summary of the invention
The purpose of the present invention is to provide a kind of mixed applying methods of hybrid paddy rice PASP nitrogenous fertilizer, it is intended to solve fertilizer applied once
Although the saving of labor but big utilization rate of amount is low and although utilization rate but different slow-release fertilizer fertilizer release profiles can be improved not in slow-release fertilizer
Slow-release fertilizer Dressing date and ratio different problems with caused by.
The invention is realized in this way a kind of mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer, the mixed applying method of the PASP nitrogenous fertilizer
For：
Common urea, PASP urea combination soil particle, in conjunction with cation nutrients, in soil are replaced with PASP urea moiety
In by soil liquid transporting to hybrid paddy rice root, root system only absorbs nutrient, and PASP enters soil liquid transport nutrient again；
And PASP urea is mixed with common urea science, common urea nutrients release is fast, hybridizes after can meeting fertilising as early as possible
The timely growth of rice plants, while PASP urea molecule sieves effect, nutrients release is slow, can maintain fertilising later period hybrid paddy rice
Growth.PASP urea is mixed with common urea, and four fertilising (base manure of common nitrogenous fertilizer high-yield fertilization method are replaced with two step fertilization methods
+ tillering fertilizer+rush fertilizers for potted flowers+guarantor's fertilizers for potted flowers) method, the labour's investment applied fertilizer twice is saved, is 100 yuan of save the cost or so.
Make the base manure used time, common urea accounts for 40%, and rice shoot period of seedling establishment new root, young leaves and new estranged are met after nutrients release
The needs of tiller growth, PASP urea account for 60%, PASP urea and provide tillering regularity to root system during plant jointing and overground part life
Nutrient needed for long.When making ear manuer, PASP urea accounts for 50%, and common urea accounts for 50%, common urea for nutrient needed for Floret differentiation,
Nutrient needed for PASP urea maintains photosynthetic function for later period root leaf, can guarantee the leaf not early ageing of later period root in this way, and raising grain husk is spent solid
Rate and grain-filling degree, Defined daily doses and mass of 1000 kernel are improved.
Further, the PASP urea is that poly-aspartate is uniformly added before being granulated in urea synthesis process, is formed
The PASP urea that poly-aspartate is uniformly merged with urea, nitrogenous ratio 46%, using on poly-aspartic-acid strand from
Nutrient is adsorbed by carboxyl and amide group, is formed the rhizospheric environment with higher available nutrient after application, is reached sustained release
With the effect for increasing N-uptake and use efficiency efficiency.
Another object of the present invention is to provide a kind of application method of hybrid paddy rice PASP nitrogenous fertilizer, hybrid paddy rice PASP nitrogenous fertilizer
Application method include：
The first step, by the 50%-60% of nitrogenous fertilizer needed for the time of infertility, in the mixed applying method by hybrid paddy rice PASP nitrogenous fertilizer
The mixed fertilizer of PASP urea and common urea is uniformly sprinkled into Tanaka after first time revolves field, and it is primary then to revolve field again, makes fertilizer
Soil mutually melts, this fertilising instead of base manure and tillering fertilizer fertilizer twice in common fertilization method application, with applied once mixed fertilizer
Material achievees the effect that administered twice common fertilizer；
Second step is pressed using the nitrogenous fertilizer of remaining 40%-50% as top dressing at the luxuriant former base differentiation initial stage of stem children fringe first
The mixed fertilizer applying of PASP urea and common urea in the mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer, stem still has 3.5 at this time
Piece leaf does not have stretching as field intuitive judgment standard.
Further, the stem still has 3.5 leaves not have the stretching to be as field intuitive judgment standard method：It is specific to see
When examining, certain first clear kind total number of blade of stem under certain ecological zone, then before administration by marking record to take out
Blade out is subtracted with total leaf number and has extracted blade out, the period of exactly fertilizer application when number of results is 3.5 leaves；Meanwhile
In application, pay attention to observing blade leaf color, be compared with from the downward third piece leaf in top and the 4th leaf, if the 4th leaf color
It is light in third piece leaf, then by design flow apply fertilizer；If the 4th leaf color is identical as third piece leaf or slightly deep, halve application.
Another object of the present invention is to provide a kind of judgement PASP urea to enhance later period photosynthetic capacity method, the judgement
PASP urea enhances later period photosynthetic capacity method：By pustulation period common urea and PASP urea to sword-like leave, fall 2 leaves and to fall
The comparison of the unit area of 3 leaves and single leaf photosynthetic rate carries out determining PASP urea enhancing later period photosynthetic capacity.
The advantage of the invention is that：PASP peptide urea：A kind of poly-aspartic-acid (PASP) homeopeptide of having chelated
New urea, which increase crops to the absorption and use efficiency of nitrogen；
PASP urea enhances later period photosynthetic capacity, and PASP urea enhances later period root system activity, delayed leaf senile,
Enhance the photosynthetic capacity of anaphase blade；Compared with common urea, PASP urea significantly improves sword-like leave, falls 2 leaves and 3 leaves
Unit area and single leaf photosynthetic rate, to be effectively increased the single cave photosynthetic rate of 3 leaves；
Compared with common urea, influence of the PASP urea to pustulation period Rice Photosynthesis the result shows that：
In unit area (μm ol CO2m-2s-1) on：Common urea sword-like leave is that 20.72, PASP urea is 21.99；Dan Ye
(nmol CO2s-1Per leaf) on, common urea sword-like leave is that 154.96, PASP urea is 187.31；Single cave (μm ol CO2s- 1Per hill) on, common urea sword-like leave is that 1.18, PASP urea is 1.59；
Two step fertilization methods, and top dressing is placed on the luxuriant former base differentiation initial stage application of stem children fringe first, applies fertilizer at this time, just can be with
Because of the need fertilizer vacancy that base manure is depleted in linking, thus when meeting two need fertilizer peaks of Later Stage of Rice booting, heading
Phase improves the utilization efficiency of fertilizer while reducing labour cost, saving of labor and efficiently between have found balance；
Two step fertilization method of PASP nitrogenous fertilizer result compared with common urea four times fertilisings：On effective fringe (ten thousand fringes/mu), commonly
It is 10.43, PASP nitrogenous fertilizer four times fertilisings is 8.86 that urea four times fertilisings, which are 8.94, PASP nitrogenous fertilizer, two step fertilization method,；
On yield (kg/ mus), it is 572.79 that common urea four times fertilisings, which are 520.54, PASP nitrogenous fertilizer, two step fertilization method,
PASP nitrogenous fertilizer four times fertilisings are 580.82；
Compared with common urea four times fertilisings, two step fertilization method mu of PASP nitrogenous fertilizer increases production 50 kilograms；With PASP nitrogenous fertilizer four times
Fertilising is compared, although volume variance is smaller, saves the recruitment applied fertilizer twice, and 100 yuan of mu save the cost or so.
Although the present invention is for fertilizer applied once saving of labor but the big utilization rate of amount is low and although benefit can be improved in slow-release fertilizer
With rate but different slow-release fertilizer fertilizer release profiles it is different caused by slow-release fertilizer Dressing date and ratio not parity problem, propose one
A kind of kind this simplified efficient fertilization mode of the rice of specific nitrogenous fertilizer using peptide urea.By 2 years fertilizer tests, polypeptide is urinated
Element Dressing date and ratio studied, saving of labor and efficiently between have found an equalization point, it is simultaneous while saving of labor
The efficient utilization of fertilizer is cared for.
The present invention replaces common urea with PASP urea moiety, PASP urea combination soil particle, in conjunction with cation nutrients,
In the soil by soil liquid transporting to hybrid paddy rice root, root system only absorbs nutrient, and PASP enters soil liquid fortune again
Defeated nutrient, so that chemistry can be reduced in the case where guaranteeing stable high yield by improving nitrogen utilization efficiency 10 or so percentage points
Amount of application of nitrogen fertilizer is up to 10%.PASP urea is mixed with common urea science, and common urea nutrients release is fast, can meet fertilising as early as possible
Hybridize the timely growth of rice plants afterwards, while PASP urea has molecular sieving effect, nutrients release is slow, after capable of maintaining fertilising
The growth of phase hybrid paddy rice.PASP urea is mixed with common urea, replaces the four of common nitrogenous fertilizer high-yield fertilization method with two step fertilization methods
Secondary fertilizing method saves the labour's investment applied fertilizer twice, is 100 yuan of save the cost or so.
Detailed description of the invention
Fig. 1 is the application method flow chart of hybrid paddy rice PASP nitrogenous fertilizer provided in an embodiment of the present invention.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
PASP peptide urea：A kind of new urea having chelated poly-aspartic-acid (PASP) homeopeptide, which increase
Absorption and use efficiency of the crop to nitrogen.
Present invention combination rice uptake characters, PASP urea feature itself deeply grind Dressing date and amount of application
To study carefully, the two step synergy for having innovated a kind of hybrid paddy rice PASP nitrogenous fertilizer, which mix, excutes a law, and fertilizer application frequency is not only reduced, production investment is reduced,
Also ensure the fertilizer efficiency demand of Later Stage of Rice.
With reference to the accompanying drawing and specific embodiment is further described application principle of the invention.
A kind of mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer, the mixed applying method of the PASP nitrogenous fertilizer are：
Common urea, PASP urea combination soil particle, in conjunction with cation nutrients, in soil are replaced with PASP urea moiety
In by soil liquid transporting to hybrid paddy rice root, root system only absorbs nutrient, and PASP enters soil liquid transport nutrient again；
And PASP urea is mixed with common urea science, common urea nutrients release is fast, hybridizes after can meeting fertilising as early as possible
The timely growth of rice plants, while PASP urea molecule sieves effect, nutrients release is slow, can maintain fertilising later period hybrid paddy rice
Growth.PASP urea is mixed with common urea, and four fertilizing methods of common nitrogenous fertilizer high-yield fertilization method are replaced with two step fertilization methods,
The labour's investment applied fertilizer twice is saved, is 100 yuan of save the cost or so.
Make the base manure used time, common urea accounts for 40%, and rice shoot period of seedling establishment new root, young leaves and new estranged are met after nutrients release
The needs of tiller growth, PASP urea account for 60%, PASP urea and provide tillering regularity to root system during plant jointing and overground part life
Nutrient needed for long.When making ear manuer, PASP urea accounts for 50%, and common urea accounts for 50%, common urea for nutrient needed for Floret differentiation,
Nutrient needed for PASP urea maintains photosynthetic function for later period root leaf, can guarantee the leaf not early ageing of later period root in this way, and raising grain husk is spent solid
Rate and grain-filling degree, Defined daily doses and mass of 1000 kernel are improved.
The PASP urea is uniformly to add poly-aspartate before being granulated in urea synthesis process, form poly- asparagus fern
The PASP urea that propylhomoserin is uniformly merged with urea, nitrogenous ratio 46%, utilizes the free carboxyl group on poly-aspartic-acid strand
Nutrient is adsorbed with amide group, is formed the rhizospheric environment with higher available nutrient after application, is reached sustained release and increase
The effect of N-uptake and use efficiency efficiency.
As shown in Figure 1：Another object of the present invention is to provide a kind of application method of hybrid paddy rice PASP nitrogenous fertilizer, the hybridization
The application method of rice PASP nitrogenous fertilizer includes：
S101：By the 50%-60% of nitrogenous fertilizer needed for the time of infertility, in the mixed applying method by hybrid paddy rice PASP nitrogenous fertilizer
The mixed fertilizer of PASP urea and common urea is uniformly sprinkled into Tanaka after first time revolves field, and it is primary then to revolve field again, makes fertilizer
Soil mutually melts, this fertilising instead of base manure and tillering fertilizer fertilizer twice in common fertilization method application, with applied once mixed fertilizer
Material achievees the effect that administered twice common fertilizer；
S102：Using the nitrogenous fertilizer of remaining 40%-50% as top dressing, at the luxuriant former base differentiation initial stage of stem children fringe first by miscellaneous
The mixed fertilizer applying of the PASP urea and common urea in the mixed applying method of rice PASP nitrogenous fertilizer is handed over, stem still there are 3.5 at this time
Leaf does not have stretching as field intuitive judgment standard.
The stem still has 3.5 leaves not have the stretching to be as field intuitive judgment standard method：When specific observation, first
Certain kind total number of blade of stem under certain ecological zone is specified, then before administration by marking the leaf for recording and having been pumped out
Piece is subtracted with total leaf number and has extracted blade out, the period of exactly fertilizer application when number of results is 3.5 leaves；Meanwhile it applying
When, pay attention to observing blade leaf color, with from pushing up downward third piece leaf and the 4th leaf comparison, if the 4th leaf color is light in the
Three pieces leaf then applies fertilizer by design flow；If the 4th leaf color is identical as third piece leaf or slightly deep, halve application.
The present invention provides a kind of judgement PASP urea enhancing later period photosynthetic capacity method, and judgement PASP urea enhances the later period
Photosynthetic capacity method is：By pustulation period common urea and PASP urea to sword-like leave, fall 2 leaves and the unit area of 3 leaves and
The comparison of single leaf photosynthetic rate carries out determining PASP urea enhancing later period photosynthetic capacity.
Application principle of the invention is further described below with reference to the advantages of invention.
The advantage of the invention is that：(1) PASP urea enhances later period photosynthetic capacity.PASP urea enhances later period root system
Activity has delayed leaf senile, enhances the photosynthetic capacity of anaphase blade.Table 1 is it can be seen that compared with common urea, PASP
Urea significantly improves sword-like leave, 2 leaves and the unit area of 3 leaves and single leaf photosynthetic rate, to be effectively increased 3 leaves
Single cave photosynthetic rate.
Influence of the 1 PASP urea of table to pustulation period Rice Photosynthesis
(2) two step fertilization methods, and top dressing is placed on the luxuriant former base differentiation initial stage application of stem children fringe first, applies fertilizer at this time, just
The need fertilizer vacancy depleted because of base manure can be connected, to meet two need fertilizer height of Later Stage of Rice booting, heading
Peak period improves the utilization efficiency of fertilizer while reducing labour cost, saving of labor and efficiently between have found balance.From
For table 2 as can be seen that compared with common urea four times fertilisings, two step fertilization method mu of PASP nitrogenous fertilizer increases production 50 kilograms.With PASP nitrogenous fertilizer
Four fertilisings are compared, although volume variance is smaller, save the recruitment applied fertilizer twice, and 100 yuan of mu save the cost or so.
The effect of 2 PASP nitrogenous fertilizer of table, two step fertilization method
Application principle of the invention is further described below with reference to specific example.
It is studied in the Shehong County town Yang Xi design dedicated experiments within 2015, experimental design factor one is fertilizer type, that is, general
Logical urea and PASP Polypeptide nitrogen fertilizer；Factor two is fertilizer application frequency, i.e., base fertilizer is primary clearly together, apply fertilizer (base manure twice：Top dressing=1:
1) it applies fertilizer with four suboptimization.The result shows that (table 3), PASP Polypeptide nitrogen fertilizer can a degree of raising rice yield, have and increase
Effect effect.In the processing of PASP Polypeptide nitrogen fertilizer, the effective fringe of unit area is can be improved in secondary fertilising and four fertilisings, to improve production
Amount, and secondary fertilising yield a little higher than four times are applied fertilizer, having confirmed fertilizer practice of the present invention again can lose weight synergy, reduce simultaneously
Labour cost.
By the present invention in that with PASP Polypeptide nitrogen fertilizer, and by studying the optimum fertilizing time obtained and ratio, it can
To guarantee plant in most of nitrogen needed for growth and development of each breeding time, compare applied once, reduces fertilizer application
Amount, improves utilization rate of fertilizer, and compare cost of labor needed for the four method of administration economizations to apply fertilizers scientifically, 2 top dressings,
Maintain higher utilization rate of fertilizer.
Influence of 3 fertilizer application frequency of table to Yield and its components factor
(3) it can be reduced synergy, protect environment while guaranteeing grain security.Due to PASP urea and common urea
It is mixed to apply, demand of each growthdevelopmental stage of hybrid paddy rice to nutrient is not only met, but also improve fertilizer utilization efficiency, therefore common with singly applying
Urea is compared, it is possible to reduce the dosage of fertilizer.According to test result (table 4), 15% feelings are increased on the basis of peasant's dose
Under condition, although the effective fringe of unit area can be improved, grains per panicle, setting percentage and mass of 1000 kernel are reduced, relative to original
Handle the yield that is not significantly increased.Subtract apply 15% in the case where, setting percentage is than peasant's conventional fertilizer application amount and increasing 15%
Processing be higher by 3.79%, 4.91% respectively, although its yield compared to peasant's conventional fertilizer application amount slightly reduce, also high yield can
Receive range, and compared to control CK, output increased 23.77%.
Rice yield and composition under 4 PASP urea Different Fertilization amount of table
Application principle of the invention is further described below with reference to other main points of the invention.
Moved in potash fertilizer, i.e., using 50% potash fertilizer as base manure, move to top dressing in 50% potash fertilizer, i.e., with nitrogenous fertilizer of the invention
Top dressing apply together.This not will increase the number of fertilising, but because the main function of potash fertilizer is strong stalk, anti-fall, apply at this time
The growth for just catching up with rice basal internode plays its effect, helps high yield.
Application principle of the invention is further described below with reference to example.
, in 2014 in 2015 are excuted a law respectively using two step synergy of PASP nitrogenous fertilizer are mixed in the Shehong County town the Qing Gang town He Yangxi
It is demonstrated, base manure is pressed in fertilising twice：Top dressing=6:4, it compares in four fertilisings by base fetilizer for tillering nitrogen：Ear manuer nitrogen=5：5, base
Fertilizer：Tillering fertilizer=7：3, promote fertilizers for potted flowers：Protect fertilizers for potted flowers=6：4.Demonstration result shows (table 5) that two step synergy of PASP nitrogenous fertilizer are mixed to excute a law
Field yield is significantly higher than common urea field, and two step synergy mix and excute a law field yield compared with four fertilizer treatments, increases
3%, and 100 yuan/mu of cost of labor to apply fertilizer twice is reduced, illustrate that mixed excute a law of PASP nitrogenous fertilizer two step synergy has rice
The effect of increasing production and improying productivity, while also can be reduced artificial investment, reduce cost.
5 Shehong of table demonstration piece expert checks and accepts situation
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (4)
1. a kind of mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer, which is characterized in that the mixed applying method of the PASP nitrogenous fertilizer is：
Common urea is replaced with PASP urea moiety：Using PASP urea combination soil particle, in conjunction with cation nutrients, in soil
In by soil liquid transporting to hybrid paddy rice root, root system only absorbs nutrient, and PASP enters soil liquid transport nutrient again
The characteristics of, the common urea of 50-60% is replaced with PASP urea；
PASP urea is mixed with common urea science：The growth of fertilising later period hybrid paddy rice slowly can be simultaneously maintained using nutrients release
PASP urea with molecular sieving effect it is fast with nutrients release and can meet as early as possible apply fertilizer after hybridize rice plants grow in time it is general
Logical urea is mixed, and four fertilizing methods of common nitrogenous fertilizer high-yield fertilization method are replaced with two step fertilization methods；
Make the base manure used time, the common urine of the needs of rice shoot period of seedling establishment new root, young leaves and newborn tiller growth is met after nutrients release
Element accounts for 40%, and the PASP urea for providing nutrient needed for tillering regularity is grown to root system during plant jointing and overground part accounts for 60%；
When making ear manuer, the PASP urea of nutrient needed for maintaining photosynthetic function for later period root leaf accounts for 50%, for supporting needed for Floret differentiation
The common urea divided accounts for 50%.
2. the mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer as described in claim 1, which is characterized in that the PASP urea is to urinate
In plain synthesis process, that is, uniformly addition poly-aspartate, formation poly-aspartate are urinated with the PASP that urea uniformly merges before being granulated
Element, nitrogenous ratio 46%.
3. the mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer as described in claim 1, which is characterized in that hybrid paddy rice PASP nitrogenous fertilizer
Application method includes：
The first step, by the 50%-60% of nitrogenous fertilizer needed for the time of infertility, by the PASP in the mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer
The mixed fertilizer of urea and common urea is uniformly sprinkled into Tanaka after first time revolves field, and it is primary then to revolve field again, makes loam phase
Melt；
Second step, using the nitrogenous fertilizer of remaining 40%-50% as top dressing, at the luxuriant former base differentiation initial stage of stem children fringe first by hybridization
The mixed fertilizer applying of PASP urea and common urea in the mixed applying method of rice PASP nitrogenous fertilizer, stem still has 3.5 leaves at this time
There is no stretching as field intuitive judgment standard.
4. the mixed applying method of hybrid paddy rice PASP nitrogenous fertilizer as claimed in claim 3, which is characterized in that the stem still has 3.5
Piece leaf does not have the stretching to be as field intuitive judgment standard method：
When specific observation, then certain first clear kind total number of blade of stem under certain ecological zone passes through label before administration
The blade that has been pumped out is recorded, is subtracted with total leaf number and has extracted blade out, exactly fertilizer application when number of results is 3.5 leaves
Period, meanwhile, in application, pay attention to observing blade leaf color, be compared with from the downward third piece leaf in top and the 4th leaf, if the
Four leaf colors are light in third piece leaf, then apply fertilizer by design flow；If the 4th leaf color is identical as third piece leaf or slightly deep,
Halve application.
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| CN111466268B (en) * | 2020-05-26 | 2022-06-24 | 扬州大学 | High-yield high-quality simplified fertilization method for preventing rice from premature senility in yellow river old sidewalk region |
| CN115259959B (en) * | 2022-07-10 | 2023-12-12 | 四川农业大学 | Special polypeptide synergistic fertilizer for hybrid indica rice in long spike period and unmanned aerial vehicle precise fertilization method |
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