CN109315286A - The method that screening improves maize/soybean Wheat yield nitrogen efficiency maize genotype - Google Patents
The method that screening improves maize/soybean Wheat yield nitrogen efficiency maize genotype Download PDFInfo
- Publication number
- CN109315286A CN109315286A CN201811187490.5A CN201811187490A CN109315286A CN 109315286 A CN109315286 A CN 109315286A CN 201811187490 A CN201811187490 A CN 201811187490A CN 109315286 A CN109315286 A CN 109315286A
- Authority
- CN
- China
- Prior art keywords
- soybean
- maize
- nitrogen
- root
- corn
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01H—NEW PLANTS OR NON-TRANSGENIC PROCESSES FOR OBTAINING THEM; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
- A01H1/00—Processes for modifying genotypes ; Plants characterised by associated natural traits
- A01H1/04—Processes of selection involving genotypic or phenotypic markers; Methods of using phenotypic markers for selection
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/40—Fabaceae, e.g. beans or peas
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Environmental Sciences (AREA)
- Health & Medical Sciences (AREA)
- Genetics & Genomics (AREA)
- General Health & Medical Sciences (AREA)
- Developmental Biology & Embryology (AREA)
- Pretreatment Of Seeds And Plants (AREA)
- Breeding Of Plants And Reproduction By Means Of Culturing (AREA)
- Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)
Abstract
The invention discloses a kind of methods that screening improves maize/soybean Wheat yield nitrogen efficiency maize genotype, belong to agricultural plantation technology field, its technical solution is: by screening the maize genotypes kind that the deep root type for being suitble to combine with Soybean Intercropping, root secretion ability are strong, system yield is high, then by these corn varieties be divided into deep root, shallow root and Soybean Intercropping, the physiological mechanism of maize/soybean Intercropping System nitrogen efficiency variance is analyzed, improves maize/soybean Wheat yield nitrogen efficiency maize genotype to filter out.Invention has the corn variety of different root system configurations and root secretion by screening, study nonoculture system underground Coupling effects and pair between make soybean nitrogen-fixing efficiency influence, clearly it is suitable for the Root morphology physiological characteristic of the corn variety of maize/soybean Wheat yield, the whole nitrogen efficiency of Wheat yield can be improved.
Description
Technical field
The invention belongs to agricultural plantation technology fields, and in particular to a kind of screening Root Characteristics difference corn variety raising is beautiful
The technology of rice/Soybean Intercropping system nitrogen efficiency.
Background technique
Corn and Soybean Intercropping are a kind of Typical Dispositions for representing and making between high short-stalked crop, standing grain bean crop, are a kind of adaptations
The stronger nonirrigated farmland planting patterns of property.Jade/beans mode has all been distributed in all parts of the country before the founding of the state, and Southwest China in recent years
A kind of new and effective how ripe nixed planting in nonirrigated farmland of area's fast development, is increasing both production and income, increases farmland ecosystem two packing spaces
Property, nitrogen utilization efficiency is improved, the important measures of fertilizer application amount are reduced." wheat-jade-beans " cropping pattern is in Sichuan Province within 2013
Popularizing area breach 400,000 hectares.Between make the advantage of yield and depend entirely on the Interspecific interaction of underground part root system, standing grain
The reasonable root dry mass of undergraduate course crop and crucial root secretion play an important role in strengthening legume nodulation and nitrogen fixation, are
The main path that jade/beans system nitrogen efficiently utilizes.
Crop combination and variety selection appropriate are that intercropping and interplanting is successfully crucial in intercropping and interplanting.The nitrogen of different corn varieties
There are significant differences for acquisition capability and root secretion ability, this may influence the fixed nitrogen effect of soybean in Intercropping System, final shadow
The nitrogen for ringing entire production system efficiently utilizes.But it has no basis at present for the selection of corn variety in Wheat yield.
Summary of the invention
For overcome it is above-mentioned there are deficiency, the present inventor attempted by long-term explorations and multiple experiment with
Effort is kept reforming and is innovated, and proposes a kind of method that screening Root Characteristics difference improves maize/soybean Wheat yield nitrogen efficiency.
Its specific technical solution is: a kind of screening improves the side of maize/soybean Wheat yield nitrogen efficiency maize genotype
Method, it is characterised in that: including following operation:
A, screening is suitble to the maize genotypes product that the deep root type combined with Soybean Intercropping, root secretion ability are strong, system yield is high
Kind, concrete operations are as follows:
A1: selecting corn variety to be screened,
A2: being arranged the planting area with identical Nitrogen Level, and planting area is then divided into nonoculture and makees two ways kind
It plants, by corn and soybean planting in corresponding region,
A3: fertilising: corn strip band is before broadcasting and the jointing stage distinguishes applied nitrogen, and soybean band applies starting fertilizer before broadcasting, and big
Beans broadcast preceding Rhizobium Inoculation,
A4: uprooting sampling in corn in the spinning phase, takes a picture to sample root system, after analyzed with DIRT software, while taking root system
Above ground portion sample disappears and boils survey nitrogen,
A5: maturity period harvest surveys production, and soybean samples in the maturity period, plucks visible root nodule, then counts, air-dries, weighing, certainly with 15N
Right abundance method calculates biological nitrogen fixation amount,
A6: go out combine with Soybean Intercropping by indoor water planting experiment sieving most suitable deep root type, root secretion ability by force, system
The high maize genotype of yield；
B, using deep root, the corn variety and Soybean Intercropping of shallow root, the physiology of maize/soybean Intercropping System nitrogen efficiency variance is analyzed
Mechanism improves maize/soybean Wheat yield nitrogen efficiency maize genotype to filter out,
B1: by the corn variety of the different root systems filtered out in a6 respectively with Soybean Intercropping, and be arranged two kinds of intercropping modes,
B2: three different Nitrogen Level planting areas of height in setting, each Nitrogen Level planting area are arranged two inter-species and make
Mode,
B3: in middle high nitrogen fertilizer horizontal zone, corn strip band nitrogenous fertilizer is before broadcasting and the jointing stage is administered twice, and soybean band is before broadcasting
Apply starting fertilizer, and the Rhizobium Inoculation before soybean is broadcast；
B4: corn is respectively at the jointing stage, big bell mouth stage, and spinning phase and maturity period uproot sampling, while taking overground part sample, disappears
Survey nitrogen is boiled, soil nitrate-N and ammonium nitrogen content are detected,
B5: finally harvest, which is surveyed, produces；It is selected between fine day morning 9:00 ~ 11:00 using LI-6400 type photosynthesizer simultaneously
Take the measuring blade Net Photosynthetic Rate of corn；
B6: soybean samples in the maturity period, plucks visible root nodule, counts, air-dries, weighing, calculates biological nitrogen fixation with 15N natural abundance method
Amount；To determine the maize genotype that maize/soybean Intercropping System nitrogen efficiency can be improved according to amount of nitrogen fixation.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is that Nitrogen Level described in a2 is 150kg/hm2。
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is that the corn nest spacing of nonoculture specification described in a2 is 25cm, and line-spacing is 40cm × 120cm wide-and narrow-row,
Corn and Soybean Intercropping line-spacing are 30cm, soybean spacing in the rows 25cm, cave program request 6-8.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is: the planting density in planting area is 50,000 plants/hm2。
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is to distinguish applied nitrogen with the jointing stage before corn strip strip sowing in a3, and the amount of application of nitrogenous fertilizer is identical.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is that solution culture is specifically that corn variety is carried out water planting in a6, by the training in basin after culture 3 weeks
Nutrient solution crosses macroporous resin column and collects root secretion, is then eluted with 85% alcohol to the flavone compound in resin, will
The eluent being collected into is concentrated by nitrogen evaporator, measures flavone compound with HPLC, measurement wavelength is 280nm.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is that when detecting soil nitrate-N and ammonium nitrogen content in b4, every 30cm soil sampling takes native depth
For 0-90cm.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is, when the soybean mature phase samples in b6, lifts whole 5 plants of strain semen viciae fabae of shoveling taking-up with iron and is placed in ox
On mulberry paper, to guarantee that all root nodules take out, gently shake off the soil on root, collection falls in the root nodule on paper and the root with root nodule, and
The soil shaken off is put back at former sampling, sample is placed on flowing water in the sieve of 100 mesh after fetching and rinsed by sample.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is that two in b1 kind intercropping mode, wherein corn and soybean line-spacing are in intercropping mode one
30cm, corn and soybean line-spacing are 40cm in intercropping mode two, and maize culture specification nest spacing is 25cm, line-spacing be 40cm ×
120cm wide-and narrow-row, soybean spacing in the rows 25cm, cave program request 6-8, when final singling, every cave stayed 5 plants.
The method that screening according to the present invention improves maize/soybean Wheat yield nitrogen efficiency maize genotype, into
The optimal technical scheme of one step is that planting density is 50,000 plants/hm in two in b1 kind intercropping mode2
The present invention has the corn variety of different root system configurations and root secretion by screening, studies the underground interaction of nonoculture system
Mechanism and pair between make soybean nitrogen-fixing efficiency influence, be clearly suitable for the root system of the corn variety of maize/soybean Wheat yield
The whole nitrogen efficiency of Wheat yield can be improved in Morphology And Physiology feature.
Detailed description of the invention
Fig. 1: one schematic diagram of cropping pattern made between maize/soybean in embodiment.
Fig. 2: two schematic diagram of cropping pattern made between maize/soybean in embodiment.
Specific embodiment
The present invention combines specific actual environment below, is done by experiment to technical solution of the present invention further detailed
Description.
Embodiment
The present embodiment, which mainly passes through two big steps, to be completed.
One: most suitable deep root type, the corn-based that root secretion ability is strong, system yield is high are combined in screening with Soybean Intercropping
Because of type, mainly completed by following；
Experimental design:
15-20 Sichuan is selected to promote mainly corn variety, 1 Nitrogen Level (150kg/hm of test setting in recent years2), including nonoculture
Make two kinds of planting patterns (such as Fig. 1) with.Four repetitions of each processing, 16 m of plot area2(3.2m × 5m), maize culture rule
Lattice nest spacing is 25cm, and line-spacing is wide-and narrow-row (40cm × 120cm), and corn and Soybean Intercropping line-spacing are 30cm.Each growth belt kind
2 rows are planted, planting density is 50,000 plants/hm2.Soybean spacing in the rows 25cm, cave program request 6-8, when final singling, every cave stayed 5 plants.Corn strip band nitrogen
Fertile application in two dressings (before broadcasting: the jointing stage=1:1) applies starting fertilizer 35kg/hm before soybean strip sowing2, inoculation root nodule before soybean is broadcast
Bacterium.
Measurement item and technical method:
Corn is uprooted sampling in the spinning phase, and every cell chooses representational 3 plants.Firstly, digging one centered on corn basal part of stem
A diameter is 35 centimetres, and the earth pillar that depth is 30 centimetres, maize root system digs out rear slight shake, removes what part loosened with hand
Root is immersed in mild detergent by soil；Finally, still sticking together a small amount of soil on root system with the flushing of low pressure hydraulic giant.
After root system dries, root system photograph is carried out, root system photographic means is with reference to (Bucksch et al., 2014).Use one 80 lis
The high square film studio (DEEP board, Beijing white light photographic goods company) of rice, camera (SONYILCE 5100) is placed in photography
Ceiling canopy middle, root system are placed on film studio center after drying, root system is analyzed after taking pictures with DIRT software.It takes simultaneously on the ground
Portion's sample disappears and boils survey nitrogen.Maturity period harvest, which is surveyed, to be produced.Soybean samples in the maturity period, digs about 0.60 m with spade and takes out whole strain silkworm deeply
5 plants of beans are placed on brown paper, to guarantee that all root nodules take out, gently shake off the soil on root, collect the root nodule and band fallen on paper
The root of root nodule, and the soil shaken off is put back at former sampling.Sample is placed on flowing water in the sieve of 100 mesh after fetching and rinsed by sample, is plucked
It can be seen that root nodule, counting, air-dried, weighing.Biological nitrogen fixation amount is calculated with 15N natural abundance method.
The strong genotype of indoor water planting experiment sieving root secretion ability: 15-20 corn variety is subjected to water planting, culture
The culture solution in basin is crossed into macroporous resin column after 3 weeks and collects root secretion, then with 85% alcohol to the flavonoids in resin
It closes object to be eluted, the eluent being collected into is concentrated by nitrogen evaporator, measure flavone compound with HPLC, measure wave
A length of 280nm.
In summary test result filters out and combines that most suitable deep root type, root secretion ability be strong, body with Soybean Intercropping
It is the high maize genotype of yield.
Two: using deep root, the maize genotype and Soybean Intercropping of shallow root, analyzing maize/soybean Intercropping System nitrogen inefficient
Different physiological mechanism.
Experimental design:
The maize genotype (deep root 1, deep root 2, shallow root 1 and shallow root 2) of the different root system sizes of 4 that the first step is filtered out with it is big
Make between beans.Test 3 Nitrogen Levels (0,150,300kg/hm of setting2), two kinds of intercropping modes are arranged in each Nitrogen Level, work
Corn and soybean line-spacing are 30cm(such as Fig. 1) in mode one, and corn and soybean line-spacing are 40cm(such as Fig. 2 in intercropping mode two).
Four repetitions of each processing, 16 m of plot area2(3.2m × 5m), maize culture specification nest spacing are 25cm, and line-spacing is wide-and narrow-row
(40cm × 120cm), each growth belt plant 2 rows, and planting density is 50,000 plants/hm2.Soybean spacing in the rows 25cm, cave program request 6-8,
Every cave stays 5 plants when final singling.In 150 and 300kg/hm2In N fertilization, corn strip band nitrogenous fertilizer application in two dressings is (before broadcasting: jointing
Phase=1:1), starting fertilizer 35kg/hm is applied before soybean strip sowing2, soybean broadcasts preceding Rhizobium Inoculation.
Measurement item and technical method:
Corn is in the jointing stage, big bell mouth stage, and spinning phase and maturity period uproot sampling, and sampling method is the same as content one.Take ground simultaneously
Upper sample disappears and boils survey nitrogen, and every 30cm soil sampling, takes 0-90cm depth, detects soil nitrate-N and ammonium nitrogen content.Finally
Harvest, which is surveyed, to be produced.Simultaneously using LI-6400 type photosynthesizer (LI-COR, the U.S.) between fine day morning 9:00 ~ 11:00
Choose measuring blade Net Photosynthetic Rate (μm ol CO2/m of 5 plants of corns of label2/ s).
Soybean samples in the maturity period.It lifts about 0.50 m of digging whole 5 plants of strain semen viciae fabae of taking-up deeply with iron to be placed on brown paper, to protect
It demonstrate,proves all root nodules to take out, gently shakes off the soil on root, collection falls in the root nodule on paper and the root with root nodule, and the soil shaken off is put
It returns at former sampling.Sample is placed on flowing water in the sieve of 100 mesh after fetching and rinsed by sample, is plucked visible root nodule, counting, is air-dried, claims
Weight.Biological nitrogen fixation amount is calculated with 15N natural abundance method.
In summary test result clearly improves the crucial corn root dry mass and root of maize/soybean Intercropping System nitrogen efficiency
It is the critical period of interaction.
From above-mentioned it is big that raising corn can be filtered out reasonablely in conjunction with analysis of experiments data with test result
The maize genotype of nitrogen efficiency in the system made between beans improves the income of farmer to improve agricultural planting efficiency, increases warp
Ji benefit.
For test area selected by the present embodiment in Sichuan, those skilled in the art according to the actual situation, can be by area
Any region is revised as in domain, in conjunction with local actual environment, test accordingly.
Based on the above embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained shall fall within the protection scope of the present invention.Therefore, embodiments of the present invention is detailed
Description is not intended to limit the range of claimed invention, but is merely representative of selected embodiment of the invention.
Claims (10)
1. a kind of method that screening improves maize/soybean Wheat yield nitrogen efficiency maize genotype, it is characterised in that: including following
Operation:
A, screening is suitble to the maize genotypes product that the deep root type combined with Soybean Intercropping, root secretion ability are strong, system yield is high
Kind, concrete operations are as follows:
A1: selecting corn variety to be screened,
A2: being arranged the planting area with identical Nitrogen Level, and planting area is then divided into nonoculture and makees two ways kind
It plants, by corn and soybean planting in corresponding region,
A3: fertilising: corn strip band is before broadcasting and the jointing stage distinguishes applied nitrogen, and soybean band applies starting fertilizer before broadcasting, and big
Beans broadcast preceding Rhizobium Inoculation,
A4: uprooting sampling in corn in the spinning phase, takes a picture to sample root system, after analyzed with DIRT software, while taking root system
Above ground portion sample disappears and boils survey nitrogen,
A5: maturity period harvest surveys production, and soybean samples in the maturity period, plucks visible root nodule, then counts, air-dries, weighing, certainly with 15N
Right abundance method calculates biological nitrogen fixation amount,
A6: go out combine with Soybean Intercropping by indoor water planting experiment sieving most suitable deep root type, root secretion ability by force, system
The high maize genotype of yield；
Using deep root, the corn variety and Soybean Intercropping of shallow root, the physiology machine of maize/soybean Intercropping System nitrogen efficiency variance is analyzed
System improves maize/soybean Wheat yield nitrogen efficiency maize genotype to filter out,
B1: by the corn variety of the different root systems filtered out in a6 respectively with Soybean Intercropping, and be arranged two kinds of intercropping modes,
B2: three different Nitrogen Level planting areas of height in setting, each Nitrogen Level planting area are arranged two inter-species and make
Mode,
B3: in middle high nitrogen fertilizer horizontal zone, corn strip band nitrogenous fertilizer is before broadcasting and the jointing stage is administered twice, and soybean band is before broadcasting
Apply starting fertilizer, and the Rhizobium Inoculation before soybean is broadcast；
B4: corn is respectively at the jointing stage, big bell mouth stage, and spinning phase and maturity period uproot sampling, while taking overground part sample, disappears
Survey nitrogen is boiled, soil nitrate-N and ammonium nitrogen content are detected,
B5: finally harvest, which is surveyed, produces；It is selected between fine day morning 9:00 ~ 11:00 using LI-6400 type photosynthesizer simultaneously
Take the measuring blade Net Photosynthetic Rate of corn；
B6: soybean samples in the maturity period, plucks visible root nodule, counts, air-dries, weighing, calculates biological nitrogen fixation with 15N natural abundance method
Amount；To determine the maize genotype that maize/soybean Intercropping System nitrogen efficiency can be improved according to amount of nitrogen fixation.
2. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is that Nitrogen Level described in a2 is 150kg/hm2。
3. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is that the corn nest spacing of nonoculture specification described in a2 is 25cm, and line-spacing is 40cm × 120cm wide-and narrow-row, corn and Soybean Intercropping
Line-spacing is 30cm, soybean spacing in the rows 25cm, cave program request 6-8.
4. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is that the planting density in planting area is 50,000 plants/hm2。
5. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is, distinguishes applied nitrogen with the jointing stage before corn strip strip sowing in a3, and the amount of application of nitrogenous fertilizer is identical.
6. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is that solution culture is specifically that corn variety is carried out water planting in a6, and the culture solution in basin is crossed macroreticular resin after culture 3 weeks
Column collects root secretion, is then eluted with 85% alcohol to the flavone compound in resin, the eluent that will be collected into
It is concentrated by nitrogen evaporator, measures flavone compound with HPLC, measurement wavelength is 280nm.
7. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is, when detecting soil nitrate-N and ammonium nitrogen content in b4, every 30cm soil sampling, taking native depth is 0-90cm.
8. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is, when the soybean mature phase samples in b6, lifts whole 5 plants of strain semen viciae fabae of shoveling taking-up with iron and is placed on brown paper, to guarantee
There is root nodule taking-up, gently shakes off the soil on root, collection falls in the root nodule on paper and the root with root nodule, and the soil shaken off is put back to original
At sampling, sample is placed on flowing water in the sieve of 100 mesh after fetching and rinsed by sample.
9. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype, special
Sign is, two in b1 kind intercropping mode, and wherein corn and soybean line-spacing are 30cm in intercropping mode one, in intercropping mode two
Corn and soybean line-spacing are 40cm, and maize culture specification nest spacing is 25cm, and line-spacing is 40cm × 120cm wide-and narrow-row, soybean spacing in the rows
25cm, cave program request 6-8, when final singling, every cave stayed 5 plants.
10. the method that screening according to claim 1 improves maize/soybean Wheat yield nitrogen efficiency maize genotype,
It is characterized in that, planting density is 50,000 plants/hm in two in b1 kind intercropping mode2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187490.5A CN109315286B (en) | 2018-10-12 | 2018-10-12 | Method for screening corn genotype for improving nitrogen efficiency of corn/soybean intercropping system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811187490.5A CN109315286B (en) | 2018-10-12 | 2018-10-12 | Method for screening corn genotype for improving nitrogen efficiency of corn/soybean intercropping system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109315286A true CN109315286A (en) | 2019-02-12 |
| CN109315286B CN109315286B (en) | 2021-09-24 |
Family
ID=65261878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811187490.5A Active CN109315286B (en) | 2018-10-12 | 2018-10-12 | Method for screening corn genotype for improving nitrogen efficiency of corn/soybean intercropping system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109315286B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362803A (en) * | 2020-09-22 | 2021-02-12 | 武汉大学 | Application of LY9348 in high-throughput screening of high NUE rice varieties |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631585B1 (en) * | 2001-01-02 | 2003-10-14 | Marvin J. Williams, Jr. | Intercropping process |
| US7634869B1 (en) * | 2001-01-02 | 2009-12-22 | Williams Jr Marvin J | Combined intercropping and mulching method |
| CN102640657A (en) * | 2012-05-15 | 2012-08-22 | 四川农业大学 | Integral fertilization method for corn and soybean relay intercropping |
| CN104798569A (en) * | 2015-04-08 | 2015-07-29 | 芜湖县能胜农业科技有限公司 | Corn and soybean interplanting method |
| CN105191654A (en) * | 2015-10-30 | 2015-12-30 | 中国科学院东北地理与农业生态研究所 | Intercropping cultivation method of corn and rice beans |
| CN106134747A (en) * | 2016-08-05 | 2016-11-23 | 中国农业科学院农田灌溉研究所 | Corn and soybean narrow strips intercropping plant method |
| CN106489480A (en) * | 2016-10-19 | 2017-03-15 | 河南农业大学 | Improve the cultural method of yield of Summer Corn and nitrogenous fertilizer efficiency |
| CN107182486A (en) * | 2017-05-27 | 2017-09-22 | 黄辉健 | A kind of implantation methods of interplanting corn soya bean |
| CN108260393A (en) * | 2018-01-19 | 2018-07-10 | 云南农业大学 | A kind of method for making to improve sloping upland red soil corrosion stability between corn soybean |
-
2018
- 2018-10-12 CN CN201811187490.5A patent/CN109315286B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6631585B1 (en) * | 2001-01-02 | 2003-10-14 | Marvin J. Williams, Jr. | Intercropping process |
| US7634869B1 (en) * | 2001-01-02 | 2009-12-22 | Williams Jr Marvin J | Combined intercropping and mulching method |
| CN102640657A (en) * | 2012-05-15 | 2012-08-22 | 四川农业大学 | Integral fertilization method for corn and soybean relay intercropping |
| CN104798569A (en) * | 2015-04-08 | 2015-07-29 | 芜湖县能胜农业科技有限公司 | Corn and soybean interplanting method |
| CN105191654A (en) * | 2015-10-30 | 2015-12-30 | 中国科学院东北地理与农业生态研究所 | Intercropping cultivation method of corn and rice beans |
| CN106134747A (en) * | 2016-08-05 | 2016-11-23 | 中国农业科学院农田灌溉研究所 | Corn and soybean narrow strips intercropping plant method |
| CN106489480A (en) * | 2016-10-19 | 2017-03-15 | 河南农业大学 | Improve the cultural method of yield of Summer Corn and nitrogenous fertilizer efficiency |
| CN107182486A (en) * | 2017-05-27 | 2017-09-22 | 黄辉健 | A kind of implantation methods of interplanting corn soya bean |
| CN108260393A (en) * | 2018-01-19 | 2018-07-10 | 云南农业大学 | A kind of method for making to improve sloping upland red soil corrosion stability between corn soybean |
Non-Patent Citations (11)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362803A (en) * | 2020-09-22 | 2021-02-12 | 武汉大学 | Application of LY9348 in high-throughput screening of high NUE rice varieties |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109315286B (en) | 2021-09-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Aziz et al. | Five decades of selection for yield reduced root length density and increased nitrogen uptake per unit root length in Australian wheat varieties | |
| Cunniff et al. | High yielding biomass genotypes of willow (Salix spp.) show differences in below ground biomass allocation | |
| Wang et al. | Soil tillage management affects maize grain yield by regulating spatial distribution coordination of roots, soil moisture and nitrogen status | |
| Zhang et al. | Row ratios of intercropping maize and soybean can affect agronomic efficiency of the system and subsequent wheat | |
| Shao et al. | Genotypic difference in the plasticity of root system architecture of field-grown maize in response to plant density | |
| Qiao et al. | Dissecting root trait variability in maize genotypes using the semi-hydroponic phenotyping platform | |
| Kengkanna et al. | Phenotypic variation of cassava root traits and their responses to drought | |
| Shao et al. | Nitrogen acquisition, fixation and transfer in maize/alfalfa intercrops are increased through root contact and morphological responses to interspecies competition | |
| Wang et al. | Density responses and spatial distribution of cotton yield and yield components in jujube (Zizyphus jujube)/cotton (Gossypium hirsutum) agroforestry | |
| Wu et al. | Root morphology and rhizosheath acid phosphatase activity in legume and graminoid species respond differently to low phosphorus supply | |
| Matsumoto et al. | Low soil nutrient tolerance and mineral fertilizer response in White Guinea Yam (Dioscorea rotundata) genotypes | |
| Egata et al. | Agronomic and bio-chemical variability of Ethiopian sweet basil (Ocimum basilicum L.) accessions | |
| Foley et al. | Land use, land cover, and climate change across the Mississippi basin: Impacts on selected land and water resources | |
| Zhi et al. | Root growth and spatial distribution characteristics for seedlings raised in substrate and transplanted cotton | |
| Zhang et al. | High‐yield characteristics and root support of rain‐fed maize under film mulching | |
| CN103460933B (en) | Treatment method of seeds for planting and breeding of polygonum capitatum of Relinqing particle medicinal materials | |
| CN109315286A (en) | The method that screening improves maize/soybean Wheat yield nitrogen efficiency maize genotype | |
| Shanko et al. | Growth, nodulation and yield response of green bean (Phaseolus vulgaris L.) to plant population and blended NPS fertilizer rates at alage, central rift valley of ethiopia | |
| Guerra-Hincapié et al. | Phenological patterns of defoliation and refoliation processes of rubber tree clones in the colombian northwest | |
| Chen et al. | Optimisation of phosphorus fertilisation promotes biomass and phosphorus nutrient accumulation, partitioning and translocation in three cotton (Gossypium hirsutum) genotypes | |
| Liu et al. | Relationship between the roots of Hippophae rhamnoides at different stump heights and the root microenvironment in feldspathic sandstone areas | |
| Kumar et al. | Effect of teak (Tectona grandis L)-Ocimum spp-based silvi-medicinal systems on growth and physiological parameters of Ocimum spp | |
| CN105027903A (en) | Interplanting method for red peppers and corn | |
| Akpan et al. | Growth and yield response of cassava (Manihot esculenta Crantz) varieties to different spacing in Uyo, Southeastern Nigeria | |
| Nainabasti et al. | Evaluation of elite spring wheat genotypes for grain yield and other agronomic attributes in hills of Sudurpaschim Province, Nepal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |