CN105660097B - A kind of light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta - Google Patents
A kind of light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta Download PDFInfo
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- CN105660097B CN105660097B CN201610016048.0A CN201610016048A CN105660097B CN 105660097 B CN105660097 B CN 105660097B CN 201610016048 A CN201610016048 A CN 201610016048A CN 105660097 B CN105660097 B CN 105660097B
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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Abstract
The invention belongs to field of agricultural production technologies, more particularly to a kind of light moderate saline-alkali soil summer corn control salt method for increasing in Huanghe delta, this method is directed to soil alkaline on the spot, soil fertility and the weather of the light moderate saline-alkali soil in the Huanghe delta and summer corn growing state, summer corn rate of fertilizer and operation research method are formulated, irrigation quantity and the control salt of corresponding irrigation principle and method volume increase liquid manure operation research method, include the following steps：(1) site preparation sowing is planned strategies for jointing stage in seedling stage liquid manure；(2) jointing tasseling stage liquid manure is planned strategies for；(3) male pustulation period liquid manure is taken out to plan strategies for.The present invention passes through reasonable arrange-ment liquid manure, the light moderate saline-alkali soil summer corn in the Huanghe delta can be planted and carry out that salt control salt, Soil building, the fertilizer that supplies water, strong sprout of keeping a full stand of seedings, growth promoting is adjusted to increase production, there is simple and practicable, cost-saving synergistic, strong applicability and easy to spread, being promoted and applied in the big face of the light moderate saline-alkali soil summer corn growing area of Yellow River delta region has significant economic, ecology and social benefit.
Description
Technical field
The invention belongs to field of agricultural production technologies, and in particular to a kind of light moderate saline-alkali soil summer corn control in the Huanghe delta
Salt method for increasing.
Background technology
Delta Region of The Yellow River is important high eco-economy area of China and Bohai Sea silo engineering key area, transformation and
Yellow River delta region salt-soda soil is improved, to bringing more land under cultivation, developing agricultural produces, guarantee increasing peasant income and national food are pacified
There is huge economy and social effect entirely.Corn is one of important cereal crops of China's agricultural production, and yield is to China
The development of national economy is most important.Due to the limitation of regional climate condition and soil alkaline, the light moderate in the Huanghe delta is caused
The cultivated area and per unit area yield of salt-soda soil corn are all difficult to scale up and improve, seriously affected Yellow River delta region agricultural production and
Expanding economy, therefore the methods for inquiring into the light moderate saline-alkali soil corn control salt volume increase in the summary Huanghe delta are to promote region
The key of economic development has important practical significance and is worth.
201410815385.7 patent applications disclose a kind of cultural method for improving salt-soda soil corn yield, but this method
Mainly include site preparation, seed treatment, sowing and seedling stage field management, only referred in site preparation irrigate the desalinization of soil by flooding or leaching, fertilizer application with
And moisturizing is applied fertilizer when transplanting seedlings, and is not considered that the liquid manure of corn different growing control salt is planned strategies for, is not also considered corn different growing pair
Topsoil soils salinity control limit and its different growing grow the demand to nutrient and moisture；201310149539.9 patent Shen
The control salt fertilizer application method of strand dry farming salt-soda soil barley-Corn Rotation System system please be disclose, this method is only a kind of control salt plantation
Mode method, fertilizer application only base manure disposably apply and easily cause crops seedling stage topsoil soils salt damage and fertilizer damage, influences
Seedling, and only preseeding irrigation pre-sowing water desalinization of soil by flooding or leaching moisture creating of pouring water, other breeding times of corn do not pour water, be not considered as liquid manure operation research method
Corn growth whole process is carried out salt control salt is adjusted to protect production, do not consider demand of other breeding times of corn to nutrient and moisture.
The content of the invention
For many shortcomings existing in the prior art, the present invention provides a kind of light moderate saline-alkali soils in Huanghe delta
Summer corn control salt method for increasing, this method are directed to the special circumstances of the light moderate saline-alkali soil in the Huanghe delta, have formulated the special summer
Corn rate of fertilizer, Dressing date and method of administration and irrigation quantity and corresponding irrigation principle and method, with reference to above-mentioned water
Fertile operation research method is finally obtained summer corn control salt method for increasing, by application of organic fertilizers and reasonable arrange-ment liquid manure, to the Yellow River three
The light moderate saline-alkali soil in angle continent carries out adjusting salt control salt, improving soil fertility, and there is control salt to keep a full stand of seedings, adjust salt growth promoting, water supply fertilizer, strong sprout volume increase
The effect of and method it is easy the advantages of, suitable for being widely applied for the light moderate saline-alkali soil summer corn growing area of Yellow River delta region
Using.
The specific technical solution of the present invention is：
A kind of light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta, in a manner that liquid manure is planned strategies for：
According to the light moderate saline-alkali soil summer corn target output in the Huanghe delta, topsoil soils fertility and salinity change conditions,
Summer corn different growing regulation of fertilizer requirement, utilization rate of fertilizer and improving soil fertility demand determine the fertilizer application of following control salt volume increase
Amount and operation research method：
Per hectare spread fertilizer over the fields 9000~12000kg of well-rotted farmyard manure or organic commercial fertilizer 3000~7500kg, ZnO 15~
30kg is applied as base manure；
Per hectare chemical fertilizer pure 225~270kg of N, P2O5150~180kg, K275~90kg of O, wherein different times are applied
The ratio of chemical fertilizer npk nutrient amount mass percent is seed manure：Ear manuer：Flower granulated fertilizer=20%：50%：30%；
Wherein seed manure is spread fertilizer over the fields prior to seeding and rotary tillage is sowed or fertilization strategy machine row replacement；Ear manuer in corn toy trumpet mouth extremely
The typhon mouth phase spreads fertilizer over the fields and pours water or applied with water punching；Flower granulated fertilizer is applied in summer corn Grain Filling with water punching；Well-rotted farmyard manure or
Organic commercial fertilizer and zinc fertilizer are disposable before being broadcast as base manure to be applied；
Using well-rotted farmyard manure or organic commercial fertilizer, reach Soil building salt reduction effect, chemical fertilizer respectively needs fertile pass in summer corn
The application energy effective supply summer corn growth of key phase is to nutrient requirement and controls salt damage and fertilizer damage, and zinc fertilizer can as base manure application
Ensure that application is uniform, effectively prevent the white seedling diseases of summer corn, enhance resistance, promote growth, increasing ears and grains, and reach stable yields and increasing
Production；
The soaked field desalinization of soil by flooding or leaching or seedling stage-jointing stage pour water 1200~1800 sides/hectare；Jointing-tasseling stage pours water 900~1500
Side/hectare；Take out hero -900~1500 sides of irrigation at seed filling stage/hectare；Above-mentioned irrigation quantity is both needed to keep topsoil soils relative water content
Higher than 60%, using border irrigation or sprinkling irrigation mode.
The soaked field desalinization of soil by flooding or leaching reduces topsoil soils salinity, can ensure summer corn emergence rate and seedlings are uniform and strong, summer corn each breeding time
Topsoil soils salinity can be regulated and controled and meet the needs of summer corn is to moisture by pouring water, and promote summer corn growth, and guarantee is increased production and improved productivity；
The mode that above-mentioned liquid manure is planned strategies for is less than the light moderate saline-alkali soil of 0.6wt% for topsoil soils salt content；
And 7500~10500kg/ hectares of target output present invention is primarily based on summer corn, Yellow River delta region are real
Border basic topography and saline and alkaline situation and the utilization rate situation of fertilizer determine above-mentioned parameter, and above-mentioned parameter scope can meet above-mentioned each
The variation of kind situation, therefore with apparent specific aim and better adaptability；
And different times irrigation quantity, then according to summer corn each breeding time salt-tolerant threshold (seedling stage-jointing stage salt-tolerant threshold
0.1wt%, jointing-tasseling stage 0.2wt%, hero-pustulation period 0.3wt% is taken out) and soil natural moisture content threshold value (seedling stage-jointing
Phase mass water content of soil threshold value 20%, jointing-tasseling stage 25% take out hero-pustulation period 25%) or soil relative water content threshold value
60%th, local this season weather rain fall, soil moisture content and summer corn growth of cereal crop seedlings growing way determine that scope disclosed above can meet
The variation of above-mentioned various situations, therefore with apparent specific aim and better adaptability；
On the basis of above-mentioned liquid manure plans strategies for mode, inventor further provide complete set the Huanghe delta it is light in
Salt-soda soil summer corn control salt method for increasing is spent, step is as follows：
(1) site preparation sowing is planned strategies for seedling stage-jointing stage liquid manure：
After harvesting wheat straw-returning, per hectare spreads fertilizer over the fields 9000~12000kg of well-rotted farmyard manure or organic commercial fertilizer 3000
15~30kg of~7500kg, ZnO, as base manure, twice of rotary tillage carries out improvement of soil fertility, improves topsoil soils structure and property
Shape；
If mass water content of soil is less than 20%, soil salt is higher than the content threshold value of 0.1wt%, border irrigation 1200~
Seed manure after a week, is spread fertilizer over the fields in the 1800 sides/hectare bubble field desalinization of soil by flooding or leaching, soaked field, and seed manure dosage is the pure 45~54kg of N of per hectare chemical fertilizer,
P2O530~36kg, K2O15~18kg is sowed after rotary tillage, and sowing is carried out using the prior art, and 75000~90000 plants of density/
Hectare controls seedling stage topsoil soils salinity, and ensures that seedling stage nutrient and water is supplied, and improves emergence rate, reaches that seedlings are uniform and strong；
If mass water content of soil is less than the content threshold value of 0.1wt% higher than 20%, soil salt, it is not required to soaked field and washes
Salt, and in seedling stage-jointing stage carry out liquid manure and plan strategies for, and are spread fertilizer over the fields after summer corn thinning or fertilizer applicator row replacement seed manure, seed manure dosage and
Method is same as above, and border irrigation or sprinkling irrigation 1200~1800 sides/hectare water, the soil accumulation of salt in the surface soil accumulation of salt in the surface soil after control emergence ensure liquid manure supply, promotees
Into corn growth；
(2) jointing-tasseling stage liquid manure is planned strategies for：
In the summer corn typhon mouth phase, ear manuer is spread fertilizer over the fields, ear manuer dosage is per hectare chemical fertilizer pure 112.5~135kg of N, P2O5
75~90kg, K237.5~45kg of O, border irrigation or sprinkling irrigation 900~1500 sides/hectare water, control topsoil soils salinity are less than
0.2wt% ensures required nutrient supply of the summer corn from nutrient growth to reproductive growth transition, and prevents from saline and alkaline returning multiple influence root
System absorbs nutrient；
(3) hero-pustulation period liquid manure is taken out to plan strategies for：
Summer corn kernel grouting initial stage spreads fertilizer over the fields colored granulated fertilizer, and flower granulated fertilizer dosage is the pure 67.5~81kg of N of per hectare chemical fertilizer,
P2O545~54kg, K222.5~27kg of O, border irrigation or sprinkling irrigation 900~1500 sides/hectare water, control topsoil soils salinity are less than
0.2wt% ensures nutrient and water supply needed for the summer corn pustulation period and reduces the topsoil soils accumulation of salt in the surface soil accumulation of salt in the surface soil to summer corn root system
It influences, promotes grouting, increasing ears and grains ensure volume increase.
In addition, each breeding time field management of summer corn, harvest etc. are carried out by the prior art.
By above-mentioned many improvement, the light moderate saline-alkali soil summer corn plantation demand in the Huanghe delta can be met, realize that the summer is beautiful
Rice increases production and improves productivity, and compares salt-soda soil general planting, per hectare can be made to increase production more than 15%, synergy more than 30%.
Compared with prior art, the advantage of the invention is that：
(1) present invention plans strategies for according to the interaction relationship of the light moderate saline-alkali soil liquid manure salt in the Huanghe delta with liquid manure
Method carries out control salt tune salt, water supply fertilizer, volume increase of keeping a full stand of seedings, and method is gently simple, suitable for the light moderate saline-alkali soil summer corn in the Huanghe delta
Growing area is widely applied.
(2) dose of the present invention and irrigation quantity are all in accordance with summer corn target output, actual soil fertility and the saline and alkaline shape of topsoil soils
Condition and summer corn need fertile law of needing the water to be formulated, and have the advantages that specific aim and applicability and water-saving fertilizer-saving.
(3) fertilizer and moisture operation research method of the present invention is to need fertile law of needing the water according to summer corn each breeding time and need water salt tolerant
Threshold value with moving what is formulated with the principle of water-fertilizer integral after fertilizer, passes through application of organic fertilizers and reasonable arrange-ment liquid manure, tool
There are Soil building, control salt to keep a full stand of seedings, adjust the advantages of salt growth promoting, water supply fertilizer, strong sprout volume increase.
The beneficial effects of the invention are as follows：
(1) present invention is for the light moderate saline-alkali soil evaporation capacity in the Huanghe delta is big, the few fertilizer of the soil accumulation of salt in the surface soil accumulation of salt in the surface soil, water shortage, the summer
The production problem such as emergence of corn is poor, growth is poor, low output carries out improving soil fertility with liquid manure operation research method, adjusts salt control salt and confession
Water fertilizer can reach the control soil accumulation of salt in the surface soil accumulation of salt in the surface soil, the effect for ensureing summer corn emergence and growth, raising yield and cost-saving synergistic
Fruit.
(2) dose of the present invention and operation research method can meet the needs of summer corn different growing is to nutrient and drop
The risk of low salt stress, ensures emergence rate, full stand, robust seedling, promotes summer corn growth, ensures that it increases production and improves productivity.
(3) irrigation quantity and operation research method of the present invention can not only meet the needs of summer corn different growing is to moisture, and energy
Topsoil soils salt concentration is diluted, keeps summer corn root system activity, promotes summer corn growth, reaches volume increase purpose.
(4) present invention has the characteristics that water-saving fertilizer-saving, strong applicability, simple and practicable, easy to spread, in Huanghe delta area
The light moderate saline-alkali soil summer corn growing area in domain is widely applied with significant economic, ecology and social benefit.
Specific embodiment
Embodiment 1
A kind of light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta
Test plot：Shandong Province Accessories during Binzhou Zhanhua County village, soil are less than the light moderate of 0.6wt% for soil salt content
Salt-soda soil.
Liquid manure is planned strategies for mode:
(1) fertilizer amount and operation research method：According to the fertilizer requirement of 7500kg/ hectares of the target output of summer corn, the Yellow River three
The utilization rate situation of Jiao Zhou regions practical basis soil fertility and fertilizer, it is per hectare to determine rate of fertilizer：Organic commercial fertilizer is (clear
Big science and technology organic fertilizer：Shandong Binzhou Qingda Technology Co., Ltd. produces, organic matter >=45%, N P and K >=5%；Or standing grain letter
Biological active organic fertilizer：Weifang and the production of letter bio tech ltd, organic matter >=45%, N P and K >=5%) 3000kg and
ZnO 15kg, chemical fertilizer pure N 225kg, P2O5150kg, K2O 75kg；Well-rotted farmyard manure or the conduct of organic commercial fertilizer and zinc fertilizer
Base manure is applied, other apply the ratio of chemical fertilizer N P and K total nutrient amount mass percent according to base manure：Ear manuer：Flower granulated fertilizer=
20%：50%：30% plans strategies for application, and method of application is spreads fertilizer over the fields, fertilizer applicator row replacement or is applied with water punching；
(2) water consumption and operation research method are irrigated：It is 25% according to topsoil soils natural quality water content before broadcasting, soil salt
The situation on the spot of 0.4wt%, 1500 sides that the pour water/hectare soaked field desalinization of soil by flooding or leaching, control soil salt are less than 0.1wt%；Worked as according to locality
Season weather rain fall, determine pour water after the fertilising of summer corn jointing-tasseling stage 900~1500 sides/hectare, irrigation at seed filling stage 900
~1500 sides/hectare, controlling topsoil soils salinity, irrigation water water quality meets GB 5084-2005 farmland irrigatings less than 0.2wt%
Irrigate water standard.
Specific summer corn control salt method for increasing, step are as follows：
(1) site preparation is sowed：Straw-returning after harvesting wheat, topsoil soils natural quality water content is 20%, soil salt
0.4wt%, using 1500 sides of border irrigation/hectare bubble field desalinization of soil by flooding or leaching before broadcasting, control topsoil soils salinity is less than 0.1wt%, soaked field one
Zhou Hou, per hectare spread fertilizer over the fields organic commercial fertilizer (clear big scientific and technological organic fertilizer：Shandong Binzhou Qingda Technology Co., Ltd. produces, and has
Machine matter >=45%, N P and K >=5%) 3000kg and ZnO 15kg；20% chemical fertilizer N P and K total nutrient amount is applied according to base manure, is changed
It calculates as chemical fertilizer pure N 45kg, P2O530kg, K2O 15kg, twice of rotary tillage；It sows afterwards, kind is calabash shell serving as a dipper jade 37, and seed pelleting is broadcast
45kg/ hectares of amount, 75000 plant/hectare of density；Because having carried out the soaked field desalinization of soil by flooding or leaching, seedling stage Topsoil Water is suitable, topsoil soils salt
Divide less than 0.1wt%, no longer carry out seedling stage-jointing stage liquid manure and plan strategies for；
(2) jointing-tasseling stage：The summer corn typhon mouth phase applies 50% chemical fertilizer N P and K total nutrient amount according to ear manuer, changes
It calculates and spreads fertilizer over the fields chemical fertilizer pure N 112.5kg, P for per hectare2O575kg, K2O 37.5kg, 1200 sides of border irrigation/hectare water control topsoil
Soil salt is less than 0.2wt%.
(3) hero-pustulation period is taken out：Summer corn Early filling stage is applied 30% chemical fertilizer N P and K total nutrient amount according to flower granulated fertilizer, is changed
It calculates and spreads fertilizer over the fields chemical fertilizer pure N 67.5kg, P for per hectare2O545kg, K2O 22.5kg, 1200 sides of border irrigation/hectare water, control topsoil soil
Earth salinity is less than 0.2wt%.
(4) field management and harvest：In due course weeding and the prevention and control of plant diseases, pest control simultaneously harvest in due course；Survey production average out to 7177.50kg/
Hectare, than salt-soda soil general planting control 6072.45kg/ hectares of volume increase 18.20% of field；Field is compareed than salt-soda soil general planting
Block cost-saving synergistic 37.66%, topsoil soils salt content reduce 40.0%, and soil aggregate structure content improves 11.2%,
Improve Physical Properties of The Tilth Soil.
Embodiment 2
A kind of light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta
Test plot：Shandong Province Accessories during Binzhou Wudi County Experimental Base, soil are soil salt content less than 0.6wt%'s
Light moderate saline-alkali soil.
Liquid manure is planned strategies for mode:
(1) fertilizer amount and operation research method：According to the fertilizer requirement the Yellow River triangle of 9000kg/ hectares of the target output of summer corn
The utilization rate situation of continent region practical basis soil fertility and fertilizer, it is per hectare to determine rate of fertilizer：Well-rotted farmyard manure
10000kg, chemical fertilizer pure N 270kg, P2O5180kg, K2O 90kg, ZnO 30kg；Well-rotted farmyard manure and zinc fertilizer are used as base manure
Using the ratio of the chemical fertilizer N P and K total nutrient amount mass percent of other applications is according to base manure：Ear manuer：Flower granulated fertilizer=20%：
50%：30% plans strategies for application, and method of application is spreads fertilizer over the fields, fertilizer applicator row replacement or is applied with water punching；
(2) water consumption and operation research method are irrigated：According to topsoil soils natural moisture content before broadcasting for 30% (mass percent,
Similarly hereinafter), the situation on the spot of topsoil soils salinity 0.1wt%, is not required to the soaked field desalinization of soil by flooding or leaching of pouring water；According to local this season weather rainfall feelings
Condition is determined using 1200~1800 sides/hectare of pouring water after Summer Corn Seedlings-jointing stage fertilising, summer corn jointing-tasseling stage fertilising
After pour water and pour water 900~1500 sides/hectare after 900~1500 sides/hectare, pustulation period fertilising, irrigation water water quality meets GB
5084-2005 agricultural irrigation water quality standards.
Specific summer corn control salt method for increasing, step are as follows：
(1) site preparation is sowed：Straw-returning after harvesting wheat, per hectare spread fertilizer over the fields well-rotted farmyard manure 10000kg and ZnO 30kg,
Twice of rotary tillage, is sowed afterwards, and kind is to step on sea 605；
(2) seedling stage-jointing stage liquid manure is planned strategies for：20% chemical fertilizer N P and K total nutrient amount is applied according to base manure, is scaled every public affairs
Hectare fertilizer applicator item pure N54kg, P to fertilize2O536kg, K2O 18kg, 1200 sides of border irrigation/hectare water control topsoil soils salinity
Less than 0.2wt%.
(3) jointing-tasseling stage liquid manure is planned strategies for：50% chemical fertilizer N P and K total nutrient amount is applied according to ear manuer, is scaled every public affairs
Just chemical fertilizer pure N 135kg, P are spread fertilizer over the fields2O590kg, K2O 45kg, 1200 sides of border irrigation/hectare water, control topsoil soils salinity are less than
0.2wt%.
(4) hero-pustulation period liquid manure is taken out to plan strategies for：It is total to apply 30% chemical fertilizer N P and K according to flower granulated fertilizer for summer corn Early filling stage
Amount of nutrients is scaled per hectare and spreads fertilizer over the fields chemical fertilizer pure N81kg, P2O554kg, K2O27kg, 1200 sides of border irrigation/hectare water, control are ploughed
Layer soil salt is less than 0.2wt%.
(5) field management and harvest：It is harvested using the prior art, surveys 10264.13kg/ hectares of average out to of production, compare salt-soda soil
General planting control 7723.5kg/ hectares of volume increase 32.89% of field；Field cost-saving synergistic is compareed than salt-soda soil general planting
30.78%, topsoil soils salt content reduces 20.1%, and soil aggregate structure content improves 13.8%.
Claims (3)
1. a kind of light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta, it is characterised in that：It is planned strategies for using liquid manure
Mode：
It is equal that per hectare spreads fertilizer over the fields 15~30kg of 9000~12000kg of well-rotted farmyard manure or organic commercial fertilizer 3000~7500kg, ZnO
As base manure；
Per hectare chemical fertilizer pure 225~270kg of N, P2O5 150~180kg, K275~90kg of O, wherein different times apply chemical fertilizer
The ratio of npk nutrient amount mass percent is seed manure：Ear manuer：Flower granulated fertilizer=20%：50%：30%；
Wherein seed manure is spread fertilizer over the fields prior to seeding and rotary tillage is sowed or fertilization strategy machine row replacement；Ear manuer is in corn toy trumpet mouth to big loudspeaker
The mouth phase spreads fertilizer over the fields and pours water or applied with water punching；Flower granulated fertilizer is applied in summer corn Grain Filling with water punching；Well-rotted farmyard manure or commodity
Organic fertilizer and zinc fertilizer are disposable before being broadcast as base manure to be applied；
The soaked field desalinization of soil by flooding or leaching or seedling stage-jointing stage pour water 1200~1800 sides/hectare；Jointing-tasseling stage is poured water 900~1500 sides/public affairs
Hectare；Take out hero -900~1500 sides of irrigation at seed filling stage/hectare；Above-mentioned irrigation quantity is both needed to that topsoil soils relative water content is kept to be higher than
60%, using border irrigation or sprinkling irrigation mode；
Specifically comprise the following steps：
（1）Site preparation sowing is planned strategies for seedling stage-jointing stage liquid manure：
After harvesting wheat straw-returning, per hectare spread fertilizer over the fields 9000~12000kg of well-rotted farmyard manure or organic commercial fertilizer 3000~
15~30kg of 7500kg, ZnO is as base manure, twice of rotary tillage；
If mass water content of soil is less than 20%, soil salt is higher than the content threshold value of 0.1wt%, 1200~1800 side of border irrigation/
Seed manure after a week, is spread fertilizer over the fields in the hectare bubble field desalinization of soil by flooding or leaching, soaked field, and seed manure dosage is per hectare chemical fertilizer pure 45~54kg of N, P2O5 30~
36kg, K215~18kg of O are sowed after rotary tillage, 75000~90000 plant/hectare of density；
If mass water content of soil is higher than 20%, soil salt is less than the content threshold value of 0.1wt%, the soaked field desalinization of soil by flooding or leaching is not required to, and
Seedling stage-jointing stage carries out liquid manure and plans strategies for, and is spread fertilizer over the fields after summer corn thinning or fertilizer applicator row replacement seed manure, seed manure dosage and method are same
On, border irrigation or sprinkling irrigation 1200~1800 sides/hectare water；
（2）Jointing-tasseling stage liquid manure is planned strategies for：
In the summer corn typhon mouth phase, ear manuer is spread fertilizer over the fields, ear manuer dosage is per hectare chemical fertilizer pure 112.5~135kg of N, P2O5 75~
90kg, K237.5~45kg of O, border irrigation or sprinkling irrigation 900~1500 sides/hectare water, control topsoil soils salinity are less than 0.2 wt %
Below；
（3）Hero-pustulation period liquid manure is taken out to plan strategies for：
At summer corn kernel grouting initial stage, colored granulated fertilizer is spread fertilizer over the fields, flower granulated fertilizer dosage is per hectare chemical fertilizer pure 67.5~81kg of N, P2O5 45
~54kg, K222.5~27kg of O, border irrigation or sprinkling irrigation 900~1500 sides/hectare water, control topsoil soils salinity are less than 0.2wt%
Below.
2. the light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta according to claim 1, it is characterised in that：
The light moderate saline-alkali soil salt content in the Huanghe delta is less than 0.6wt%.
3. the light moderate saline-alkali soil summer corn control salt method for increasing in the Huanghe delta according to claim 1, it is characterised in that：
Irrigation water water quality meets GB 5084-2005 agricultural irrigation water quality standards.
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| CN106376268A (en) * | 2016-08-30 | 2017-02-08 | 山东胜伟园林科技有限公司 | Plantation method for saline-alkali land greenhouse in river bend |
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