AU2021105468A4 - A method to improve the oil content of tropical corn - Google Patents
A method to improve the oil content of tropical corn Download PDFInfo
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- 240000008042 Zea mays Species 0.000 title claims abstract description 45
- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 45
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 43
- 235000005822 corn Nutrition 0.000 title claims abstract description 43
- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000000618 nitrogen fertilizer Substances 0.000 claims abstract description 22
- 238000010521 absorption reaction Methods 0.000 claims abstract description 13
- 239000003607 modifier Substances 0.000 claims abstract description 10
- 239000003337 fertilizer Substances 0.000 claims description 50
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 17
- 235000012680 lutein Nutrition 0.000 claims description 17
- 239000001656 lutein Substances 0.000 claims description 17
- KBPHJBAIARWVSC-RGZFRNHPSA-N lutein Chemical compound C([C@H](O)CC=1C)C(C)(C)C=1\C=C\C(\C)=C\C=C\C(\C)=C\C=C\C=C(/C)\C=C\C=C(/C)\C=C\[C@H]1C(C)=C[C@H](O)CC1(C)C KBPHJBAIARWVSC-RGZFRNHPSA-N 0.000 claims description 17
- 229960005375 lutein Drugs 0.000 claims description 17
- ORAKUVXRZWMARG-WZLJTJAWSA-N lutein Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CCCC1(C)C)C=CC=C(/C)C=CC2C(=CC(O)CC2(C)C)C ORAKUVXRZWMARG-WZLJTJAWSA-N 0.000 claims description 17
- KBPHJBAIARWVSC-XQIHNALSSA-N trans-lutein Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CC(O)CC1(C)C)C=CC=C(/C)C=CC2C(=CC(O)CC2(C)C)C KBPHJBAIARWVSC-XQIHNALSSA-N 0.000 claims description 17
- FJHBOVDFOQMZRV-XQIHNALSSA-N xanthophyll Natural products CC(=C/C=C/C=C(C)/C=C/C=C(C)/C=C/C1=C(C)CC(O)CC1(C)C)C=CC=C(/C)C=CC2C=C(C)C(O)CC2(C)C FJHBOVDFOQMZRV-XQIHNALSSA-N 0.000 claims description 17
- 239000004202 carbamide Substances 0.000 claims description 16
- 239000002689 soil Substances 0.000 claims description 14
- 238000009331 sowing Methods 0.000 claims description 13
- 239000003795 chemical substances by application Substances 0.000 claims description 12
- 239000002285 corn oil Substances 0.000 claims description 11
- 235000005687 corn oil Nutrition 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 9
- 239000011347 resin Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 claims description 8
- 150000002148 esters Chemical class 0.000 claims description 4
- 230000004720 fertilization Effects 0.000 claims description 4
- 230000006872 improvement Effects 0.000 claims description 4
- 239000003921 oil Substances 0.000 claims description 4
- 235000019198 oils Nutrition 0.000 claims description 4
- 238000007726 management method Methods 0.000 claims description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 38
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 20
- 230000005764 inhibitory process Effects 0.000 abstract description 13
- 230000008569 process Effects 0.000 abstract description 5
- 229920005610 lignin Polymers 0.000 abstract description 3
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 abstract 2
- 125000002350 geranyl group Chemical group [H]C([*])([H])/C([H])=C(C([H])([H])[H])/C([H])([H])C([H])([H])C([H])=C(C([H])([H])[H])C([H])([H])[H] 0.000 abstract 2
- 235000009973 maize Nutrition 0.000 abstract 2
- 239000002585 base Substances 0.000 description 15
- 238000012360 testing method Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000003112 inhibitor Substances 0.000 description 4
- 238000006396 nitration reaction Methods 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 3
- 150000002596 lactones Chemical class 0.000 description 3
- 229910052700 potassium Inorganic materials 0.000 description 3
- 239000011591 potassium Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 241000605121 Nitrosomonas europaea Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 241000607479 Yersinia pestis Species 0.000 description 2
- 235000010208 anthocyanin Nutrition 0.000 description 2
- 239000004410 anthocyanin Substances 0.000 description 2
- 229930002877 anthocyanin Natural products 0.000 description 2
- 150000004636 anthocyanins Chemical class 0.000 description 2
- 238000012272 crop production Methods 0.000 description 2
- 201000010099 disease Diseases 0.000 description 2
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000796 flavoring agent Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 230000001850 reproductive effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- JKMHFZQWWAIEOD-UHFFFAOYSA-N 2-[4-(2-hydroxyethyl)piperazin-1-yl]ethanesulfonic acid Chemical compound OCC[NH+]1CCN(CCS([O-])(=O)=O)CC1 JKMHFZQWWAIEOD-UHFFFAOYSA-N 0.000 description 1
- 241000190633 Cordyceps Species 0.000 description 1
- 241001057636 Dracaena deremensis Species 0.000 description 1
- 241000208152 Geranium Species 0.000 description 1
- 239000007995 HEPES buffer Substances 0.000 description 1
- 241000238631 Hexapoda Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000007908 dry granulation Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 235000020774 essential nutrients Nutrition 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000035558 fertility Effects 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000008223 sterile water Substances 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
- C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
The invention belongs to the technical field of crop planting, in
particular to a method for improving the oil content of tropical corn.
The method for increasing the oil content of tropical corn according
to the invention is based on the conventional planting method, by
adding an modifier with improving the nitrogen absorption efficiency
of corn planting while applying the base fertiizer, the modifier
takes aescine and / or geranyl lignin as the effective components,
and the aescine and / or geranyl lignin have obvious nitrification
inhibition, It can effectively improve the utilization efficiency of
nitrogen fertilizer in the process of crop planting and ensure that
the yield of maize can be effectively increased in the process of
maize planting.
Description
A method to improve the oil content of tropical corn Technical field The invention belongs to the technical field of crop planting, relating
to a method for improving the oil content of tropical corn.
Background technology Nitrogen is an essential nutrient element of the plant and the most
important nutrient limiting factor of the crop production. The application
of nitrogen fertilizer has become a necessary way for the agricultural
producers to obtain a high yield. According to the FAO, more than 55% of
grain production production in developing countries is attributed to
chemical fertilizer, and nitrogen fertilizer application, as the main
management measure in current crop production, plays an important role in
ensuring high crop yield. However, the excess and unreasonable application
of fertilizer nitrogen and its rapid hydrolysis and nitrification in the
soil lead to a generally low utilization rate of nitrogen fertilizer. At
present, the average utilization rate of nitrogen fertilizer in China's
agricultural production is only about 20% -30%, and the yield increase
efficiency of unit use has gradually decreased since the 1990s. Therefore,
how to properly apply nitrogen fertilizer and improve the utilization rate
of nitrogen fertilizer has been attracting much attention, which has become
an urgent need to be solved problem and research hotspot in agricultural
production.
During the corn planting process, continuous nitrogen absorption is
required throughout the whole reproductive period, and the maximum amount
of nitrogen is required during the jointing period to the loudspeaker
period and the silk discharge period to the grouting period. However, due
to the difficulty of corn topdressing in the late stage, one-time
fertilization (one bombardment) is that one-time bottom fertilizer and no
longer topdressing in the later stage is more common. Rural labor transfer
and increased labor costs are one of the main limiting factors for the
further increase in corn production. It is reported that 54.5% of farmers
in Shandong Province adopt one-time fertilization technology, but only the single quick-acting nitrogen fertilizer can easily lead to unbalanced fertilizer distribution, leading to volatilization and shower loss in the early nitrogen supply, and less prone to denitrification in the later supply, thus reducing the corn yield and utilization efficiency of nitrogen fertilizer.
It has been shown that the nitrogen fertilizer lost by nitrification
denitrification can account for about 34% of the nitrogen loss.
Nitrification inhibitor is a general term of a kind of substances that can
inhibit the microbial activity of nitrochemical bacteria in soil Central
Asia. Its technical principles are as follows: after entering the soil can
inhibit the process of nitrification, nitrification and denitrification of
soil in Central Asia, thus hindering the transformation of NH 4 + to NO 2-,
NO 3. Nitrification inhibitor application in combination with nitrogen
fertilizer can inhibit the activity of nitrification bacteria, allowing the
applied nitrogen source to exist in the form of NH 4 + -N for a long time
for crop utilization. Therefore, the utilization efficiency of nitrogen
fertilizer can be improved by artificially controlling the absorption of
nitrogen fertilizer in the cultivated land. Therefore, the development of
new nitrate inhibitor products that can promote the utilization efficiency
of nitrogen fertilizer is of positive significance to improve the yield and
quality of crops, especially the cultivation of crops.
Invention content
To this end, the technical problem to be solved by the present
invention is to provide a method for improving the oil content of tropical
corn.
To solve the above technical problems, a method of improving the
tropical corn oil content is described in the present invention, comprising
the following steps:
(1) Before sowing, prepare for soil turning in the conventional way,
and conduct corn seed sowing in the conventional way;
(2) Add the base fertilizer to be applied with a modified agent that
can improve the absorption efficiency of corn planting nitrogen fertilizer, and applies the base fertilizer according to the conventional fertilization method; The improvement agent comprises a septein having the structure shown in formula 0 and / or lutein in the structure shown in formula 0;
U-1 0
(1I) (Ii
) The base fertilizer is a corn fertilizer and the nitrogen fertilizer comprises a mixture of resin coated urea and common urea; (3) After leveling the soil, the corn shall be planted according to the conventional field management method. Specifically, the mass ratio of the septaectone and lutein is 1-3:2-4. Specifically, the mass ratio of the septet and Xianglutein is 2:3. Specifically, the modifier is based on the addition of N base fertilizer of 0.5-5 wt%. of pure N Specifically, the improvement is the sepfoliate ester, which is based on the addition of the N base fertilizer of 1-5 wt%. of a pure N amount Specifically, the modification is the lutein, based on the amount of N fertilizer 0.5-3 wt%. of pure N Specifically, the modifier also includes aids available in corn cultivation. Specifically, the mass ratio of the resin-coated urea and ordinary urea is 3-7:7-3. Specifically, the base fertilizer formula is 26-11-8. Specifically, the applied amount of the base fertilizer is 600-750kg/ha. A method of improving the tropical corn oil content under the conventional planting method includes an improvement agent with improving the absorption efficiency of corn planting nitrogen fertilizer while applying base fertilizer, including septaleaf ester and / or lutein. And the septaleaf ester and / or lutein both have obvious nitrification inhibition effect, which can effectively improve the utilization efficiency of nitrogen fertilizer during crop planting and ensure the production of corn during corn planting.
Figure description
In order to make the content of the invention more clearly understood,
the invention is further detailed in accordance with specific embodiments
of the invention and in conjunction with the accompanying drawings, wherein,
Figure 1 shows the results of corn yield in each experimental group;
Figure 2 shows the results of the difference of partial fertility in
each experimental group.
Specific implementation mode
Example 1
The modified agent to improve the absorption efficiency of nitrogen
fertilizer in corn planting include lacester and lutein with a quality
ratio of 2:3.
Example 2
The modified agent to improve the absorption efficiency of nitrogen
fertilizer in corn planting include lacester and lutein with a mass ratio
of 1:2.
Example 3
The modified agent to improve the absorption efficiency of nitrogen
fertilizer in corn planting include lacester and lutein with a mass ratio
of 1:4.
Example 4
The modified agent to improve the absorption efficiency of nitrogen
fertilizer in corn planting include lacester and lutein with a quality
ratio of 3:2.
Example 5
The modified agent to improve the absorption efficiency of nitrogen
fertilizer in corn planting include lactone and lutein with a quality ratio
of 3:4.
Example 6 The modified agent improving the absorption efficiency of nitrogen fertilizer described in this embodiment is sepate. Example 7 The modified agent described to improve the absorption efficiency of nitrogen fertilizer in corn planting is Xiangtein. Experimental example In the following experimental examples of the present invention, the performance of nitrochemical inhibition is identified and studied with reference to the inhibition experimental scheme described in Chinese Patent CN107673941B. 1, inhibition test of pure N itr o s o m o n a s e u r o p a e a A T CC25978 I In Nitrosomonas europaea, the pure medium (lL sterile water contains 2.5g (NH4) 2 SO 4, 0.5gKH2PO4, 5mg CaCl 2.2H 2 0, 0.lg MgSO 4.7H 2 0, 0.5g NaHCO 3, Ig NaCl, 1mL 75mg FeNaEDTA, 11.92g HEPES) with a mixture of lactone, flavor, and of lactone and flavor (mass ratio 2:3), Calculate the concentrations produced in each group scheme, React the nitrification inhibition effect with NPI, Test results are shown in Table 1 below.
Table 1 The NPI% results of each experimental group
NPI OO1M 0.95MM . Or~ ________
Sevoflactone -15.4 el__8_6_ 94.3 100 Geranium lignin 19.3 725 96.1 109
mixture 53.1 76.9 99.9 100
From the results in the table above, the septaectone, lutein and its mixture selected in the present invention have an obvious inhibition on the nitrification process of Nitrosomonaseuropaea strains, and the inhibition rate of 100% can be achieved at the 0.0 added concentration of 05 mM, but also at the added concentration of 0.01mM, which can be used as a nitrosing inhibitor for the planting of crops. Nitrification inhibition of 2, soil samples
Add a soil sample (10g, drying weight) to a 1OOmL cone flask and be treated with distilled water to achieve 40% water retention. The samples were incubated in the dark at 25°C for 7 days to stabilize microbial activity, and then 42-day aerobic culture experiments were conducted to study the effects of different modifiers on the nitrification properties of the soil. The NH 4 Cl solution is added to each cone flask to provide a NH 4 C1 solution of 400mg N kg-1 soil (dry soil calculation). In each experimental group, a mixture of sep, anthocyanins, and anthocyanins were respectively added to 100 mol/kg dry soil (mass ratio 2:3). Concentrations of NH 4 + -N and NO 3- -N were measured at 7,14,21,28,35, and 42 days in each experimental group culture, respectively, and the nitrate inhibition rate (NI%) was calculated by the following formula: Nitration rate (%) =NO 3- -N/ (NH 4 + -N + NO 3- -N) X 100%; Nitrification inhibition rate (NI%) = (the controlled nitration rate the nitration rate of the sample) / the control nitration rate was X 100%. The NI% test results of each test group are shown in Table 2 below.
k1 % Table 2 The NI% test results of each test group
Sevoflactone 7d 53.7 eraniumlignin 59.3 14d 63.9 68.2 21d 65.5 69.9 28d 66.8 70.3 35d 67.2 71.7 42d 69.8 74.6 mixture 69.1 75.4 78.2 80.7 81.8 82.3
From the results of the table above, the septet, xianglutein and their mixture selected by the present invention have a long effect and stable nitrification inhibition effect. Application case The field test was conducted in 118 0 12 'E,36 0 57' 1 N, Zhutai Village, Linzi District, Zibo City, from June 2019 to September 2019. The physicochemical properties of 0-30cm are as follows: pH is 7.8, organic matter 18.8g/kg, total nitrogen 0.60g/kg, alkali nitrogen 73.6mg/kg, fast acting phosphoror 30.8mg/kg and quick-acting potassium 174mg/kg. There are 4 test treatments, including:
Group TO: According to the conventional sowing and planting methods,
the base fertilizer is special corn fertilizer, the formula is 26-11-8, the
dosage of 675kg/ha, is applied one-time, among which, the ratio of resin
coated urea (market sale) and ordinary urea is 5:5 respectively, and
topdressing is not conducted during planting;
Group TI: According to the conventional sowing and planting methods,
the base fertilizer is special corn fertilizer, the formula is 26-11-8 and
the dosage of 675kg/ha, when sowing, among which the ratio of resin coated
urea (marketed) and ordinary urea is respectively 5:5. When base fertilizer
is applied, sepester is fully added according to 1 wt% of corn fertilizer
pure N amount, not topdressing during planting;
Group T2: According to the conventional sowing and planting mode, the
base fertilizer is corn special fertilizer, the formula is 26-11-8, dosage
of 675kg/ha, when sowing, the ratio of resin coated urea (marketed) and
ordinary urea is respectively 5:5. When the base fertilizer is applied,
lutein should be fully stirred according to 1 wt% of corn special
fertilizer pure N amount, and fertilizer should not be pursued during
planting;
Group T3: according to the conventional sowing and planting methods,
the base fertilizer is special corn fertilizer, the formula is 26-11
8,675kg/ha, when sowing, the proportion of resin coated urea (marketed) and
ordinary urea is 5:5 respectively, when the base fertilizer is applied, the
mixture of lutein and lutein is fully stirred (quality ratio 2:3) is added
according to 1 wt% of the corn special fertilizer pure N, not topdressing
during planting.
The above TO-T3 treatment varieties are 372, each region is convenient
for mechanical operation, and each treatment sowing area is 600m 2. The
prevention and control of diseases, cordyceps pests is managed according to
the conventional fields, and no obvious diseases and insect pests or weeds
occur during the reproductive period. The sowing time is June 15, and the
harvest time is September 28.
In the mature period, 3 corn plants are taken evenly in each community,
and the mature period is divided into two parts: grain and straw. The
sample was dried at 105°C for 30min,75°C to a constant weight, recording
the dry weight, and the powder sample was used to determine the nitrogen,
phosphorus and potassium concentration. In the mature period, 10.5m 2
samples were randomly selected (10 ears were selected for testing) to
determine the total weight of air dry granulation and finally converted
into an output with water content of 14%.
Fertilizer partial productivity (kg/kg) = grain yield / fertilizer
volume (total nitrogen, phosphorus and potassium fertilizer).
Microsoft Excel 2007 for data processing; data analysis by IBM SPSS
Statistics20 software and significance analysis by Duncan (P <0.05 level).
The corn yield harvested by each experimental group is shown in Fig. 1.
It is seen that after the addition, the corn yield is greatly increased,
which can effectively promote the utilization of nitrogen fertilizer and
increase the crop yield.
The influence difference in partial productivity of corn fertilizer in
each experimental group is shown in Fig. 2, which shows that the change
range of fertilizer partial productivity (PFP) in different treatment modes
is 21.2kg/kg-40.0kg/kg. Other processing PFP s increased significantly over
TO processing, where T3 handles the highest PFP (40.0kg/kg).
It can be seen that the modifier of the present invention has a good
nitrification inhibition effect, which promotes the effective utilization
of nitrogen fertilizer and thus improves the yield of corn crops.
Obviously, the above embodiments are merely examples made for clear
illustration, and not define the embodiments. For those of ordinary skill
in the art, other different forms of changes or changes may be made on the
basis of the above description. All implementments need not be required and
cannot be impoverished here. The obvious changes or changes are still
within the scope of protection of the present invention.
Claims (10)
- CLAIMS 1. A method of improving the oil content of tropical corn, characterized by comprising the steps of: (1) Before sowing, prepare for soil turning in the conventional way, and conduct corn seed sowing in the conventional way; (2) Add the base fertilizer to be applied with a modified agent that can improve the absorption efficiency of corn planting nitrogen fertilizer, and applies the base fertilizer according to the conventional fertilization method; The improvement agent comprises a septein having the structure shown in formula (I) and / or lutein in the structure shown in formula (II);0 0OHThe base fertilizer is a corn fertilizer and the nitrogen fertilizer comprises a mixture of resin coated urea and common urea; (3) After leveling the soil, the corn shall be planted according to the conventional field management method.
- 2. The method for improving the tropical corn oil content according to claim 1, wherein the mass ratio of the septaectone and lutein is 1-3:2-4.
- 3. The method for improving the tropical corn oil content according to claim 2, wherein the mass ratio of the ester and lutein is 2:3.
- 4. The method for improving the tropical corn oil content according to claims 1-3, wherein the modifier is based on 0.5-5 wt%. of the amount of pure N-containing base fertilizer
- 5. A method for improving the tropical corn oil content according to claim 4, wherein the modifier is the septaester, based on a pure N amount of the N base fertilizer
- 6. A method for improving the tropical corn oil content according toclaim 4, wherein the modifier is the xianglutein, which is based on anadded amount of 0.5-3 wt%. of the pure N amount of the N base fertilizer
- 7. A method for improving the tropical corn oil content according toclaim 1, wherein the modifier further comprises an acceptable aid in corncultivation.
- 8. A method for improving the tropical corn oil content according toclaim 1, wherein the mass ratio of the resin-coated urea and ordinary ureais 3-7:7-3.
- 9. A method for improving the tropical corn oil content according toclaim 1, wherein the formula of the base fertilizer is 26-11-8.
- 10. A method for increasing the tropical corn oil content according toclaims 1, wherein the applied amount of the base fertilizer is 600-750kg/ha.
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| AU2021105468A Ceased AU2021105468A4 (en) | 2021-08-13 | 2021-08-13 | A method to improve the oil content of tropical corn |
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