AU2021104179A4 - Water-saving and high-yield cultivation method of dryland wheat - Google Patents
Water-saving and high-yield cultivation method of dryland wheat Download PDFInfo
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- AU2021104179A4 AU2021104179A4 AU2021104179A AU2021104179A AU2021104179A4 AU 2021104179 A4 AU2021104179 A4 AU 2021104179A4 AU 2021104179 A AU2021104179 A AU 2021104179A AU 2021104179 A AU2021104179 A AU 2021104179A AU 2021104179 A4 AU2021104179 A4 AU 2021104179A4
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- 241000209140 Triticum Species 0.000 title claims abstract description 63
- 235000021307 Triticum Nutrition 0.000 title claims abstract description 63
- 238000012364 cultivation method Methods 0.000 title claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 44
- 238000009331 sowing Methods 0.000 claims abstract description 31
- 239000003337 fertilizer Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003971 tillage Methods 0.000 claims abstract description 11
- 230000001629 suppression Effects 0.000 claims abstract description 10
- 230000012010 growth Effects 0.000 claims abstract description 9
- 235000013339 cereals Nutrition 0.000 claims abstract description 8
- 235000015097 nutrients Nutrition 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 241000607479 Yersinia pestis Species 0.000 claims description 10
- 210000005069 ears Anatomy 0.000 claims description 10
- 201000010099 disease Diseases 0.000 claims description 9
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 claims description 9
- 241000196324 Embryophyta Species 0.000 claims description 8
- 230000018109 developmental process Effects 0.000 claims description 7
- 230000004720 fertilization Effects 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 238000001556 precipitation Methods 0.000 claims description 7
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 5
- 230000035558 fertility Effects 0.000 claims description 5
- 238000003306 harvesting Methods 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000003895 organic fertilizer Substances 0.000 claims description 5
- 229910021538 borax Inorganic materials 0.000 claims description 4
- 238000009313 farming Methods 0.000 claims description 4
- 230000002265 prevention Effects 0.000 claims description 4
- 230000005070 ripening Effects 0.000 claims description 4
- 239000004328 sodium tetraborate Substances 0.000 claims description 4
- 235000010339 sodium tetraborate Nutrition 0.000 claims description 4
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 claims description 4
- 229960001763 zinc sulfate Drugs 0.000 claims description 4
- 229910000368 zinc sulfate Inorganic materials 0.000 claims description 4
- 206010063493 Premature ageing Diseases 0.000 claims description 3
- 208000032038 Premature aging Diseases 0.000 claims description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 235000005822 corn Nutrition 0.000 claims description 3
- 230000007123 defense Effects 0.000 claims description 3
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 claims description 3
- 229910001950 potassium oxide Inorganic materials 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 239000010902 straw Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 230000009105 vegetative growth Effects 0.000 claims description 3
- 230000021749 root development Effects 0.000 claims description 2
- 240000008042 Zea mays Species 0.000 claims 1
- 241000238631 Hexapoda Species 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 241000209149 Zea Species 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- 241001124076 Aphididae Species 0.000 description 1
- 229930091051 Arenine Natural products 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 241000488583 Panonychus ulmi Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 238000009328 dry farming Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- PJNZPQUBCPKICU-UHFFFAOYSA-N phosphoric acid;potassium Chemical compound [K].OP(O)(O)=O PJNZPQUBCPKICU-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- 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
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
Abstract
The invention is about a water-saving and high-yield cultivation method of dryland wheat,
which relates to a cultivation method of crops. Its cultivation methods: fertilization-tillage
variety selection-flat sowing-group control-use cultivating and suppression to protect soil
moisture and prevent drought. According to the invention, the early and deep application of
fertilizer is used to increase the root ligation before winter and the ratio of root to shoot, making
the root fully absorb the water and nutrients of deep soil; Use flat sowing to increase dryland
wheat population and cultivate strong seedlings; Adopt a reasonable group management
strategy, and synchronously increase the number of grains per spike and 1000-grain weight on
the basis of large population to increase the yield of dryland wheat; It not only reduces the risk
of waiting for rain topdressing in the later growth stage of wheat, but also saves labor and
effort.
Description
Water-saving and high-yield cultivation method of dryland wheat
The invention relates to a cultivation method of crops, in particular to a water
saving and high-yield cultivation method of dryland wheat.
The average annual precipitation in the dry farming areas in northern China is
between 250 and 550 mm, and the rainfall in most areas is concentrated in July,
August and September, accounting for 60%-70% of the total annual precipitation,
while the rainfall in winter and spring only accounts for 10%-15%. Spring drought
occurs frequently in northern China. There is relatively more rain in summer, but the
rainfall is too concentrated, with many showers, heavy rains and rainstorms. In hilly
and mountainous areas, most of them form surface runoff and are lost, and the
utilization rate of rain by crops is less than 30%. In recent years, the annual rainfall
variability in the northern region is relatively large. Besides spring drought, the
conditions of summer drought, autumn drought, summer drought, summer and
autumn drought, and winter and spring drought are also very serious. Therefore, in the
northern region, there are nine droughts in ten years, two droughts in three years,
small droughts every year, and one drought in five years and ten years. Nearly half of
cultivated land in China is often threatened by drought and water shortage. Because of
the obstacles of "Three Waters Circulation", and the drought trend of expanding the
scope of arid areas and increasing the degree of drought, the already scarce water
resources are increasingly stretched.
Wheat is the main food crop in China, and its growing season is a severe drought
period in northern China. The yield of wheat has been low and unstable for a long
time, which is due to the frequent threat of drought, on the other hand, the underutilization of precipitation resources is also a more important direct reason.
Therefore, it is of great significance to improve the drought-resistant and water-saving
wheat production technology to increase the yield of dryland wheat for coping with
drought and ensuring food production.
The existing dryland wheat production technologies mainly include:
First, farming: Dry land wheat is mostly cultivated by deep ploughing, shallow
ploughing and soil conservation, and rotated every other year to increase the
accumulated amount of precipitation in the plough layer. The previous crop should be
ploughed early in time after harvest, with a depth of 20 - 25 cm, and the land with
thick soil layer can be deeply ploughed to more than 30cm, so as to receive more
rainwater. It is necessary to rake along with ploughing, and rake thoroughly and
horizontally to reduce soil moisture loss and wait for sowing.
Second, fertilizer: on the basis of applying more than 2000kg of high-quality
organic fertilizer per mu, the formula is to apply enough inorganic fertilizer, including
-15kg of pure nitrogen, 8-10kg of phosphorus (P205), 5kg of potassium (K20),
1kg of zinc sulfate and 0.5kg of borax. In the above total fertilization amount, all
organic fertilizer, phosphate fertilizer, potassium fertilizer, 70% - 80% nitrogen
fertilizer, zinc fertilizer and boron fertilizer are applied to the soil, and the remaining
% - 30% nitrogen fertilizer is furrowed and topapplied in the second spring when
the soil returns to pulp (or after wheat turns green, it is topapplied by rain).
Third, select semi-winter varieties with strong drought resistance, strong tillering
power, developed root system, compact plant type, high ear formation rate and good
cold resistance. Seed coating, border sowing at proper time, the sowing amount per
mu in dry and fertile land with thick soil layer and good soil fertility is about 8kg, and the sowing amount per mu in middle and low yield dry land with thin soil layer and low fertility is about 10kg.
Fourth, the wheat should be suppressed in time after sowing, the soil should be
stabilized, the seedlings should be checked and replanted in time after emergence, and
the plots lacking seedlings should be replanted in time. It requires 120,000-160,000
basic seedlings per mu, 6-7 main stem leaves before winter, 700,000-800,000 tillers
before winter, 800,000-1,000 tillers in spring and about 500,000 ears per mu. After
sowing to overwintering, returning to green to pulling out the knot, hoeing in time has
obvious effect on soil moisture and drought prevention, especially in early spring, it
should be suppressed first and then hoeing.
Five, strengthen spring management in early spring, borrow soil moisture and
topdressing, and eliminate weeds with hoeing. Pests such as red spiders and aphids in
dry wheat fields are seriously harmful and should be controlled in time. In the late and
middle stages of growth, the phenomenon of fertilizer removal is easy to occur. To
topdress outside roots or borrow soil moisture, leaf surface fertilizers such as fulvic
acid and potassium dihydrogen phosphate can be sprayed as appropriate to delay
aging and increase grain weight. At the end of wax ripening, harvest in time.
To sum up, adopting the above technologies has the following disadvantages:
1. The fertilizer should be applied in several times, and the topdressing is limited
by the rainfall after the wheat turns green. If there is no rainfall strip and no irrigation,
the topdressing of the fertilizer will not be carried out, which will affect the growth
and development of the wheat in the later stage and lead to the phenomenon of de
fertilization. And it takes time and labor to topdress fertilizer.
2. Due to the inaccurate grasp of the yield elements of the formation mechanism
of dryland wheat yield, insufficient population development in the later period, the three elements of yield can not be coordinated development, and the general yield is low, with the yield per mu in dry and fertile land being 400 kg, and that in dry and thin land being often lower than 300 kg.
The purpose of the invention is to provide a water-saving and high-yield
cultivation method for dryland wheat, which uses early and deep application of
fertilizer to increase the root system before winter and the ratio of root to shoot,
making the root system fully absorb the water and nutrients of deep soil; Use flat
sowing to increase dryland wheat population and cultivate strong seedlings; Adopt a
reasonable group management strategy, and synchronously increase the number of
grains per spike and 1000-grain weight on the basis of large population to increase the
yield of dryland wheat; It not only reduces the risk of waiting for rain topdressing in
the later growth stage of wheat, but also saves labor and effort.
In order to solve the problems in the background telenology, the invention
adopts the following cultivation methods: fertilization-cultivation-variety selection
flat sowing-group control-intertillage and suppression to protect soil moisture and
prevent drought.
The dry land is generally dry, with few nutrients and poor soil structure; Water
shortage in dry land is often accompanied by poor soil; Fertilization should not only
meet the demand of increasing production in current season, but also apply enough
fertilizer to improve soil fertility. The main direction of dryland wheat is to increase
tillers and ears on the ground, promote deep root development under the ground, and
highlight the characteristics of early and deep fertilizer operation. Generally, 3000 ~
5000 kg of organic fertilizer, 16 kg of pure nitrogen, 12 kg of phosphorus pentoxide, 8
kg of potassium oxide, 1 kg of zinc sulfate and 0.5 ~ 1 kg of borax are applied per mu.
Fertilizers combined with deep ploughing are applied to the soil as base fertilizer to
promote the vegetative growth of wheat at seedling stage and tillering before winter,
and increase the number of ears per mu.
The cultivation is to deepen the cultivated layer by deep ploughing.It is not only
increase the accumulated amount of precipitation in rainy season in the coming year,
but also expand the absorption range of root system. The cultivation depth is
preferably 25-30 cm. Before sowing wheat in dry land, soil tillage should not be
blindly ploughed. Generally, in three crops in two years, deep ploughing is carried out
in winter leisure, and shallow ploughing is carried out before sowing wheat. When
working twice a year, the soil moisture content is more obvious than that of the land
that has not been deeply ploughed for many years, so it should be deeply ploughed;
When the sowing date is dry and the tillage layer is in danger of losing moisture,
shallow tillage should be done. In the field of corn straw returning, it is advisable to
adopt the way of subsoiling and returning to the field, and integrate farming and
sowing with subsoilers.
The variety selection is a semi-winter variety with strong drought resistance,
strong tillering power, developed root system, compact plant type, high ear formation
rate and good cold resistance.
The flat sowing is sowing without ridge and with equal row spacing (20 ~ 22
cm). Because the main direction of dryland wheat is to increase population in early
stage and spike number per mu in later stage, the number of seedlings, plants, spikes
and grains can be guaranteed by flat sowing, which can increase the yield by about
% compared with other planting methods, and save labor and effort.
The population control is to cultivate strong seedlings, create reasonable
population structure, and sow in time. It requires 120,000 ~ 160,000 basic seedlings per mu, 6 ~ 7 main stem leaves before winter, 700,000 ~ 800,000 tillers before winter,
800,000 ~ 1 million tillers in spring and about 500,000 ears per mu. The dryland
wheat population must be a texture with high yield and low consumption. Among the
main population indexes, the key is that the population before winter is enough but
not too large. It is necessary to control the population development out of control
before winter, control the prosperity and promote the weakness, and assist with
chemical control regulators and drought-resistant and steam-reducing agents to resist
drought and save water.
The application of intertillage and suppression to protect soil moisture and
prevent drought means that hoeing should be carried out in time after rain and early
spring when soil returns to pulp, especially in early spring, the combination of hoeing
and pressing should be adopted, and hoeing should be carried out after suppression
first. In the late growth stage, if the phenomenon of fertilizer removal occurs, the
foliar topdressing should be carried out according to the conditions. At the same time,
we should do a good job of "three defenses" in wheat fields, namely, preventing
diseases and pests, premature aging and dry hot wind. In the process of wheat
changing from low yield to high yield in dryland, diseases and insect pests tend to
increase, so we must pay attention to the prevention and control of diseases and insect
pests. Wheat wax ripening period, timely harvest.
The invention has the following beneficial effects: the early and deep application
of fertilizer is used to increase the root ligation before winter and the ratio of root to
shoot, making the root fully absorb the water and nutrients of deep soil; Use flat
sowing to increase dryland wheat population and cultivate strong seedlings; Adopt a
reasonable group management strategy, and synchronously increase the number of
grains per spike and 1000-grain weight on the basis of large population to increase the yield of dryland wheat; It not only reduces the risk of waiting for rain topdressing in the later growth stage of wheat, but also saves labor and effort.
The specific implementation method adopts the following cultivation methods:
fertilization-cultivation-variety selection-flat sowing-group control-intertillage and
suppression to protect soil moisture and prevent drought.
The fertilization is that the dry land is generally dry, with few nutrients and poor
soil structure. Water shortage in dry land is often accompanied by poor soil.
Fertilization should not only meet the demand of increasing production in current
season, but also apply enough fertilizer to improve soil fertility. The main direction of
dryland wheat is to increase tillers and ears on the ground, promote deep root
development under the ground, and highlight the characteristics of early and deep
fertilizer operation. Generally, 3000 - 5000 kg of organic fertilizer, 16 kg of pure
nitrogen, 12 kg of phosphorus pentoxide, 8 kg of potassium oxide, 1 kg of zinc sulfate
and 0.5 ~ 1 kg of borax are applied per mu. Fertilizers combined with deep ploughing
are applied to the soil as base fertilizer to promote the vegetative growth of wheat at
seedling stage and tillering before winter, and increase the number of ears per mu.
The cultivation is to deepen the cultivated layer by deep ploughing.It is not only
increase the accumulated amount of precipitation in rainy season in the coming year,
but also expand the absorption range of root system. The cultivation depth is
preferably 25-30 cm. Before sowing wheat in dry land, soil tillage should not be
blindly ploughed. Generally, in three crops in two years, deep ploughing is carried out
in winter leisure, and shallow ploughing is carried out before sowing wheat. When
working twice a year, the soil moisture content is more obvious than that of the land
that has not been deeply ploughed for many years, so it should be deeply ploughed;
When the sowing date is dry and the tillage layer is in danger of losing moisture,
shallow tillage should be done. In the field of corn straw returning, it is advisable to
adopt the way of subsoiling and returning to the field, and integrate farming and
sowing with subsoiler.
The variety selection is a semi-winter variety with strong drought resistance,
strong tillering power, developed root system, compact plant type, high ear formation
rate and good cold resistance.
The flat sowing is sowing without ridge and with equal row spacing (20 ~ 22
cm). Because the main direction of dryland wheat is to increase population in early
stage and spike number per mu in later stage, the number of seedlings, plants, spikes
and grains can be guaranteed by flat sowing, which can increase the yield by about
% compared with other planting methods, and save labor and effort.
The population control is to cultivate strong seedlings, create reasonable
population structure, and sow in time. It requires 120,000 ~ 160,000 basic seedlings
per mu, 6 ~ 7 main stem leaves before winter, 700,000 ~ 800,000 tillers before winter,
800,000 ~ 1 million tillers in spring and about 500,000 ears per mu. The dryland
wheat population must be a texture with high yield and low consumption. Among the
main population indexes, the key is that the population before winter is enough but
not too large. It is necessary to control the population development out of control
before winter, control the prosperity and promote the weakness, and assist with
chemical control regulators and drought-resistant and steam-reducing agents to resist
drought and save water.
The application of intertillage and suppression to protect soil moisture and
prevent drought means that hoeing should be carried out in time after rain and early
spring when soil returns to pulp, especially in early spring, the combination of hoeing and pressing should be adopted, and hoeing should be carried out after suppression first. In the late growth stage, if the phenomenon of fertilizer removal occurs, the foliar topdressing should be carried out according to the conditions. At the same time, we should do a good job of "three defenses" in wheat fields, namely, preventing diseases and pests, premature aging and dry hot wind. In the process of wheat changing from low yield to high yield in dryland, diseases and insect pests tend to increase, so we must pay attention to the prevention and control of diseases and insect pests. Wheat wax ripening period, timely harvest.
In this embodiment, the early and deep application of fertilizer is used to increase
the root ligation before winter and the ratio of root to shoot, making the root fully
absorb the water and nutrients of deep soil; Use flat sowing to increase dryland wheat
population and cultivate strong seedlings: Adopt a reasonable group management
strategy, and synchronously increase the number of grains per spike and 1000-grain
weight on the basis of large population to increase the yield of dryland wheat; It not
only reduces the risk of waiting for rain topdressing in the later growth stage of wheat,
but also saves labor and effort.
The above is only the preferred embodiment of the present invention, and it
should be pointed out that for ordinary people in the technical field, without departing
from the principle of the present invention, several improvements and embellishments
can be made, and these improvements and embellishments should also be regarded as
the protection scope of the present invention.
Claims (7)
1. The cultivation method of water-saving and high-yield wheat in dryland is
characterized by the following cultivation methods: fertilization-cultivation-variety
selection-flat sowing-group control-intertillage and suppression to protect soil
moisture and prevent drought.
2. The water-saving and high-yield cultivation method of dryland wheat
according to claim 1, which is characterized in that the fertilization is that the dry land
is generally dry, with few nutrients and poor soil structure, and the lack of water in
dryland is often accompanied by poor soil, so fertilization should not only meet the
demand of increasing production in current season, but also apply enough fertilizer to
improve soil fertility; The main direction of dryland wheat is to increase tillers and
ears on the ground, promote deep root development under the ground, and highlight
the characteristics of early and deep fertilizer operation; Generally, 3000 ~ 5000 kg of
organic fertilizer, 16 kg of pure nitrogen, 12 kg of phosphorus pentoxide, 8 kg of
potassium oxide, 1 kg of zinc sulfate and 0.5 - 1 kg of borax are applied per mu; The
fertilizer combined with deep tillage is applied to the soil as base fertilizer to promote
the vegetative growth of wheat at seedling stage and tillering before winter, and
increase the number of ears per mu.
3. The water-saving and high-yield cultivation method of dryland wheat
according to claim 1, which is characterized in that the cultivation is to deepen the
cultivated layer by deep ploughing; It is not only increase the accumulated amount of
precipitation in rainy season in the coming year, but also expand the absorption range
of root system; The cultivation depth is preferably 25-30 cm ; Soil tillage before
sowing wheat in dry land should not be blindly ploughed; Generally, when three crops
are done in two years, they are deeply ploughed in winter leisure and shallow ploughed before sowing wheat; When working twice a year, the soil moisture content is more obvious than that of the land that has not been deeply ploughed for many years, so it should be deeply ploughed; When the sowing date is dry and the tillage layer is in danger of losing moisture, shallow tillage should be carried out; In the field of corn straw returning, it is advisable to adopt the way of subsoiling and returning to the field, and integrate farming and sowing with subsoiler.
4. The water-saving and high-yield cultivation method of dryland wheat
according to claim 1, characterized in that the variety selection is a semi-winter
variety with strong drought resistance, strong tillering power, developed root system,
compact plant type, high ear formation rate and good cold resistance.
5. The water-saving and high-yield cultivation method of dryland wheat
according to claim 1, which is characterized in that the flat sowing is sowing without
ridge and with equal row spacing (20-22 cm); Because the main direction of dryland
wheat is to increase population in early stage and spike number per mu in later stage,
the number of seedlings, plants, spikes and grains can be guaranteed by flat sowing,
which can increase the yield by about 5% compared with other planting methods, and
save labor and effort.
6. The water-saving and high-yield cultivation method of dryland wheat
according to claim 1, characterized in that the population control is to cultivate strong
seedlings, create a reasonable population structure, and sow in time, requiring
120,000-160,000 basic seedlings per mu, 6-7 main stem leaves before winter,
700,000-800,000 tillers before winter, 800,000-1 million tillers in spring, and about
500,000 ears per mu; The dryland wheat population must be a structure with high
yield and low consumption. Among the main population indexes, the key is that the
population before winter is enough but not too large; It is necessary to control the population development out of control before winter, control the prosperity and promote the weakness, and assist with chemical control regulators and drought resistant and steam-reducing agents to resist drought and save water.
7. The water-saving and high-yield cultivation method of dryland wheat
according to claim 1, characterized in that the application of intertillage and
suppression to protect soil moisture and prevent drought means timely hoeing after
rain and early spring when soil returns to pulp, especially in early spring, the
combination of hoeing and pressing should be adopted, and first suppression followed
by hoeing; In the late growth stage, if there is a phenomenon of de-fertilization, foliar
topdressing should be carried out according to the conditions; At the same time, we
must do a good job of "three defenses" in wheat fields, that is, prevent diseases and
pests, prevent premature aging and prevent dry and hot wind; In the process of wheat
changing from low yield to high yield in dryland, pests and diseases tend to increase,
so we must pay attention to the prevention and control of pests and diseases; Wheat
wax ripening period, timely harvest.
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| AU2021104179A AU2021104179A4 (en) | 2021-07-15 | 2021-07-15 | Water-saving and high-yield cultivation method of dryland wheat |
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| AU2021104179A AU2021104179A4 (en) | 2021-07-15 | 2021-07-15 | Water-saving and high-yield cultivation method of dryland wheat |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114793793A (en) * | 2022-05-11 | 2022-07-29 | 甘肃省科学院生物研究所 | Application and method for water saving and yield increase of dry land wheat by synergy of nano elemental iron and arbuscular mycorrhizal fungi |
| CN114830976A (en) * | 2022-05-09 | 2022-08-02 | 宿迁中江种业有限公司 | Scientific fertilizing and planting method for disease-resistant eurytopic wheat |
| CN114793793B (en) * | 2022-05-11 | 2024-04-26 | 甘肃省科学院生物研究所 | Application and method of nano simple substance iron and arbuscular mycorrhizal fungi to synergistic water saving and yield increase of wheat in dry land |
-
2021
- 2021-07-15 AU AU2021104179A patent/AU2021104179A4/en not_active Ceased
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114830976A (en) * | 2022-05-09 | 2022-08-02 | 宿迁中江种业有限公司 | Scientific fertilizing and planting method for disease-resistant eurytopic wheat |
| CN114793793A (en) * | 2022-05-11 | 2022-07-29 | 甘肃省科学院生物研究所 | Application and method for water saving and yield increase of dry land wheat by synergy of nano elemental iron and arbuscular mycorrhizal fungi |
| CN114793793B (en) * | 2022-05-11 | 2024-04-26 | 甘肃省科学院生物研究所 | Application and method of nano simple substance iron and arbuscular mycorrhizal fungi to synergistic water saving and yield increase of wheat in dry land |
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