CN114885778A - Simple rice seedling raising method - Google Patents
Simple rice seedling raising method Download PDFInfo
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- CN114885778A CN114885778A CN202210415448.4A CN202210415448A CN114885778A CN 114885778 A CN114885778 A CN 114885778A CN 202210415448 A CN202210415448 A CN 202210415448A CN 114885778 A CN114885778 A CN 114885778A
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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
- A01G22/20—Cereals
- A01G22/22—Rice
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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
- A01G13/00—Protecting plants
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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
- A01G13/00—Protecting plants
- A01G13/02—Protective coverings for plants; Coverings for the ground; Devices for laying-out or removing coverings
- A01G13/0206—Canopies, i.e. devices providing a roof above the plants
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- Life Sciences & Earth Sciences (AREA)
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- Pretreatment Of Seeds And Plants (AREA)
Abstract
The invention relates to the technical field of crop cultivation, and provides a simple rice seedling raising method, which comprises the following steps: (1) preparing a water seedling raising seedbed, sowing, and covering a sunshade net on a compartment surface; (2) irrigating water when the seedlings grow to one leaf and one heart, and removing the sunshade net; (3) and (4) transplanting the rice seedlings to the 4.0-5.5 leaf stage of the rice in field management. The rice seedling raising method is simple, light and harmless, and has high safety, and the sun-shading net can cover rice seedlings to achieve the effects of moisture preservation and heat preservation, rain wash and damage of birds and rats to seeds can be avoided.
Description
Technical Field
The invention relates to the technical field of crop cultivation, in particular to a simple rice seedling raising method.
Background
The rice seedling raising can be divided into spring seeding, summer seeding, autumn seeding, winter seeding and other seedling raising types according to different seeding periods. The spring sowing is generally used for raising rice seedlings in middle-season rice or early season rice in Yangtze river basin rice areas, the temperature is lower, in order to ensure normal seedling raising, the rice seedlings are raised after sowing, the arch stalks are used as supports, and the films cover the rice seedlings, so that on one hand, the heat preservation can be realized, the safety seedling raising can be promoted, and on the other hand, the damage of birds, rats and the like to rice seeds can be effectively avoided. The temperatures of seeding periods such as summer seeding in Yangtze river basin and autumn seeding and winter seeding in south China rice area are generally above 20 ℃, and film heat preservation is not needed any more, and the method belongs to seedling raising at normal temperature. In the technology of normal-temperature seedling raising, the film is covered to prevent damages such as bird and rat heating at night, but the film covering temperature is high in the daytime, the film needs to be timely uncovered to ventilate so as to prevent high-temperature seedling burning, the seedling burning condition is caused by inadequate management and protection, the seedling raising procedure is complex, and the cost is high. The open seeding is easy to cause the seedbed to be dried in the sun, seeds are dehydrated, rice seeds are scattered by rainfall, and are eaten by birds and rats, so that the conditions of seed mixing, low emergence rate, uneven emergence and the like are caused, and the rice seedling raising quality is seriously influenced.
Disclosure of Invention
The invention aims to provide a light and simple rice seedling raising method, which adopts a sunshade net to cover rice seedlings, achieves the effects of moisturizing and heat preservation, can avoid rain wash and damage of birds and mice to seeds, is light and simple to raise rice seedlings without damage, and has high safety.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a simple rice seedling raising method, which comprises the following steps:
(1) preparing a water seedling raising seedbed, sowing, and covering a sunshade net on a compartment surface;
(2) irrigating and uncovering the sunshade net when the rice seedlings grow to one leaf and one heart;
(3) and (4) transplanting the rice seedlings to the 4.0-5.5 leaf stage of the rice in field management.
Further, the preparation of the water seedling raising seedbed in the step (1) comprises seedling box manufacturing and fertilization and pesticide application.
Furthermore, the seedling box is manufactured into a seedling box with the width of 100-150 cm and the channel of 20-40 cm after the selected seedling bed is irrigated, rotary-tilled and leveled; the fertilization and pesticide application is to apply 40-45% of compound fertilizer 300-450 kg/hm 2 And 2-5% of phoxim granules 40-80 kg/hm 2 。
Further, N, P in the compound fertilizer 2 O 5 、K 2 The content ratio of O is 15-22: 8-15: 10 to 15.
Further, the sun-shading net in the step (1) is a round silk black 3-needle or 4-needle sun-shading net.
And (3) further, irrigating water in the step (2) until the sunshade net is completely submerged and soaked, and then uncovering the sunshade net.
Further, the field management in the step (3) comprises water and fertilizer management and pest control.
Further, the water and fertilizer management comprises the steps of keeping the water layer of the rice seedling bed for 3-5 cm and applying 45-75 kg/hm 2 The urea of (1).
Further, the reagent for controlling the insect pests comprises niclosamide ethanolamine salt, dimehypo and abamectin; the effective component content of the niclosamide ethanolamine salt is 40-60%, the effective component content of the dimehypo is 20-30%, and the effective component content of the abamectin is 2-8%; the dosage of the niclosamide ethanolamine salt is 600-900 g/hm 2 The dosage of the dimehypo is 2500-3500 ml/hm 2 The using amount of the abamectin is 200-260 ml/hm 2 。
Further, the niclosamide ethanolamine salt is mixed with 225-300 kg/hm after being irrigated and stripped 2 The fine sandy soil is uniformly spread; the dimehypo and the abamectin are diluted by water and sprayed in the 2-leaf stage or after the occurrence of pests; the ratio of the total volume of the dimehypo and the abamectin to the volume of the water is 3-4: 400-500.
The invention has the beneficial effects that:
the sunshade net covers after the rice seeds are sowed, so that the effects of moisture preservation and heat preservation can be achieved, rainwater erosion and damage of birds and rats to the seeds can be effectively avoided, and water evaporation can be reduced after rice seedlings grow out. Simple technique, low seedling raising cost, small risk and high safety.
Detailed Description
The invention provides a simple rice seedling raising method, which comprises the following steps:
(1) preparing a water seedling raising seedbed, sowing, and covering a sunshade net on a compartment surface;
(2) irrigating and uncovering the sunshade net when the rice seedlings grow to one leaf and one heart;
(3) and (4) transplanting the rice seedlings to the 4.0-5.5 leaf stage of the rice in field management.
In the invention, the preparation of the water seedling bed comprises seedling box manufacturing and fertilization and pesticide application, and sowing and covering the shading net on the surface of the box.
In the invention, the seedling box is manufactured into a seedling box with the width of 100-150 cm and the channel of 20-40 cm after the irrigation rotary tillage leveling of the selected seedling bed; the width of the compartment is preferably 110-140 cm, more preferably 120-130 cm, and the width of the compartment groove is preferably 25-35 cm, more preferably 28-32 cm.
In the invention, the fertilization application is compound fertilizer and phoxim granules.
In the invention, the content of the effective components of the compound fertilizer is 40-45%, preferably 41-44%, and more preferably 42-43%; the dosage of the compound fertilizer is 300-450 kg/hm 2 Preferably 320-420 kg/hm 2 More preferably 350-400 kg/hm 2 (ii) a N, P in the compound fertilizer 2 O 5 、K 2 The content ratio of O is 15-22: 8-15: 10 to 15, preferably 16 to 20:10 to 13, and more preferably 17 to 19:11 to 12.
In the invention, the content of active ingredients of the phoxim granules is 2-5%, preferably 3-4%, and more preferably 3.2-3.8%; the dosage of the phoxim granules is 40-80 kg/hm 2 Preferably 50 to 70kg/hm 2 More preferably 55 to 65kg/hm 2 。
In the invention, the sowing is to insert a label obliquely in front of a sowing position, wherein the height of the label is 1-5 cm, preferably 1.5-4 cm, and more preferably 2-3 cm; the name of the variety and the sowing date are marked, and the rice seeds are uniformly sown after being labeled.
In the invention, the sunshade net is preferably a round silk black 3-needle or 4-needle sunshade net, preferably a 3-needle sunshade net; the sunshade net is used for keeping moisture and heat and preventing biological damage.
In the invention, when rice seedlings grow to one leaf and one heart stage, watering and uncovering the sunshade net, wherein the watering depth is 3-5 cm, and preferably 3.5-4.5 cm; and (5) irrigating until the sunshade net is completely submerged and soaked, and then uncovering the sunshade net.
In the invention, the rice seedlings are transplanted in a 4.0-5.5-leaf stage of rice in field management, preferably in a 5-leaf stage; the field management comprises water and fertilizer management and pest control.
In the invention, the water and fertilizer management comprises shallow water seedling culture and urea application, wherein the shallow water seedling culture is to maintain the water layer of a seedling bed to be 3-5 cm, preferably 3.5-4.5 cm; the dosage of the urea is 45-75 kg/hm 2 Preferably 55-70 kg/hm 2 More preferably 60 to 65kg/hm 2 。
In the invention, the reagent for controlling the insect pests comprises niclosamide ethanolamine salt, dimehypo and abamectin.
In the invention, the reagent for pest control comprises niclosamide ethanolamine salt, wherein the content of the effective component of the niclosamide ethanolamine salt is 40-60%, preferably 45-58%, and more preferably 50-53%; the dosage of the niclosamide ethanolamine salt is 600-900 g/hm 2 Preferably 700-800 g/hm 2 More preferably 740 to 760g/hm 2 。
In the invention, the reagent for controlling the insect pests comprises bisultap, and the content of active ingredients of the bisultap is 20-30%, preferably 22-28%, and more preferably 24-25%; the dosage of the dimehypo is 2500-3500 ml/hm 2 Preferably 2800 to 3200ml/hm 2 More preferably 2900 to 3100ml/hm 2 。
In the invention, the reagent for controlling the insect pests comprises abamectin, and the content of active ingredients of the abamectin is 2-8%, preferably 3-7%, and more preferably 4-5%; the using amount of the abamectin is 200-260ml/hm 2 Preferably 210 to 250ml/hm 2 More preferably 220 to 240ml/hm 2 。
In the invention, the niclosamide ethanolamine salt is uniformly applied by mixing with fine sand soil after watering and uncovering, and the dosage of the fine sand soil is 225-300 kg/hm 2 Preferably 240 to 280kg/hm 2 More preferably 250-260 kg/hm 2 (ii) a The bisultap and the abamectin are diluted by water and then sprayed in a 2-leaf stage or after the pests appear, and the volume ratio of the total volume of the bisultap and the abamectin to the water is 3-4: 400-500, preferably 3.2-3.8: 420-480, and more preferably 3.4-3.6: 440-460.
The following examples are provided to illustrate the present invention in detail, but should not be construed as limiting the scope of the present invention.
Example 1
The embodiment provides a simple rice seedling raising method, which is used for seeding and raising rice seedlings at Yuxi crop test station of agricultural academy of science in Chongqing, satellite lake, street and Chongqing, Yongchuan area, within 4 months and 15 days.
(1) Preparation, sowing and compartment surface covering sunshade net for water seedling raising seedbed
Selecting field blocks which are smooth in the sun, loose in soil and convenient to drain and irrigate at a Yuxi crop test station, irrigating, rotary tillage and harrowing, manufacturing seedling compartments with compartment widths of 120cm and compartment ditches of 30cm, and uniformly spreading 45% of special compound fertilizer (N: P) for rice 2 O 5 ：K 2 O＝15:15:15)375kg/hm 2 And 3% phoxim granules 60kg/hm 2 And the surface of the carriage is leveled again to ensure that the seedling carriage is moist without accumulated water and the carriage ditch is in a water state. The method comprises the following steps of sowing 10 sterile lines of Yu 802A, Yu 813A, Yu 750A, Yu 924S, Yu 17S, Yu 964S, Yu 805A, Yu 650A, Yixiang 1A and Yu 819A, obliquely inserting a label at the sowing starting position of the 1 st variety of Yu 802A, wherein the height is 4cm, and the variety and the sowing date are marked; and (5) sequentially inserting labels and sowing, wherein the spacing distance between different varieties is 15 cm. After the sowing is finished, the round-wire black 3-needle sunshade net is used for being covered on the compartment surface in time, and in the net covering process, the sunshade net is prevented from being dragged on the sowed compartment surface, the part of the edge which is not wetted by water is prevented from being covered by stones, and the sunshade net is prevented from being blown away by strong wind.
(2) Watering and uncovering the sunshade net when rice seedlings grow to one leaf and one heart
After the sunshade net is covered well, the water outlet of the seedling bed is opened to avoid water accumulation in the seedling bed. After the rice seeds germinate, the rice seeds grow out in the holes of the sunshade net, when the seedlings grow to 1 leaf and 1 heart, the water outlet of the rice field is closed, the water is filled until the sunshade net is completely submerged by water and is not wetted, the sunshade net is slowly lifted from one end, and the seedlings slowly slide out of the wetted holes of the sunshade net. And righting and placing the seeding variety label.
(3) Transplanting rice seedlings to the 4.0-5.5 leaf stage of rice in field management
After the sunshade net is uncovered, keeping the shallow water layer of 3cm in the seedling bed of the shallow water pipe seedling, and timely applying molluscicide (50% molluscicide ethanolamine salt 750 g/hm) 2 ) Mixing 300kg/hm 2 The fine sand is uniformly spread to avoid the damage of the rice seedlings by the lions. After the seedlings grow to the 2-leaf stage, dressing 60kg/hm 2 The urea is used for strengthening seedlings, 2800ml of bisultap with 25 percent and 225ml of abamectin with 5 percent are added with 450L of water for even spraying per hectare, and the seedlings of rice thrips and the like are prevented and treated. Transplanting is started in the 4.5 leaf stage of the seedlings.
Example 2
The embodiment provides a simple rice seedling raising method, which is used for seeding and raising rice seedlings at 9 months and 1 day in Xinzhou Zhengqiang Qingnan breeding base in the Lingshui county of Hainan province.
(1) Preparation, sowing and compartment surface covering sunshade net for water seedling raising seedbed
Selecting field blocks with smooth sunny appearance, loose soil and convenient irrigation and drainage in Chongqing south breeding base, irrigating, rotary tillage and raking to manufacture seedling boxes with 120cm of box width and 30cm of box ditches, and uniformly spreading 45% of special compound fertilizer (N: P) for rice 2 O 5 ：K 2 O＝15:15:15)450kg/hm 2 And 3% phoxim granules 75kg/hm 2 And the surface of the carriage is leveled again to ensure that the seedling carriage is moist without accumulated water and the carriage ditch is in a water state. Ten rice restorer lines of Yuhui 2103, Yuhui 7109, Yuhui 1351, Yuhui 6003, Yuhui 5028, Yuhui 9341, Huazhan, Yuejie silking, Yuhui 139 and Yudao 86 are sown. Obliquely inserting a label at the sowing starting position of the 1 st variety Yuhui 2103, wherein the height is 3cm, and the variety and the sowing date are marked; in accordance withAnd (5) inserting labels and sowing, wherein the spacing distance between different varieties is 15 cm. After the sowing is finished, the round-wire black 3-needle sunshade net is used for being covered on the compartment surface in time, and in the net covering process, the sunshade net is prevented from being dragged on the sowed compartment surface, the part of the edge which is not wetted by water is prevented from being covered by stones, and the sunshade net is prevented from being blown away by strong wind.
(2) Watering and uncovering the sunshade net when rice seedlings grow to one leaf and one heart
After the sunshade net is covered well, the water outlet of the seedling bed is opened to avoid water accumulation in the seedling bed. After the rice seeds germinate, the rice seeds grow out in the holes of the sunshade net, when the seedlings grow to 1 leaf and 1 heart, the water outlet of the rice field is closed, the water is filled until the sunshade net is completely submerged by water and is not wetted, the sunshade net is slowly lifted from one end, and the seedlings slowly slide out of the wetted holes of the sunshade net. And righting and placing the seeding variety label.
(3) Transplanting rice seedlings to the 4.0-5.5 leaf stage of rice in field management
After the sunshade net is uncovered, keeping the shallow water layer of 5cm in the seedling bed of the shallow water pipe seedling, and immediately applying molluscicide (50% molluscicide ethanolamine salt 900 g/hm) 2 ) Stirring at 260kg/hm 2 The fine sandy soil is uniformly spread to avoid the damage of the rice seedlings to the lions. After the seedlings grow to 2 leaves, applying 75kg/hm 2 The urea is used for strengthening seedlings, wherein each hectare is uniformly sprayed with 25 percent of bisultap 3200ml and 5 percent of abamectin 245ml by adding 450L of water to prevent and control rice thrips and other seedling-stage insect pests. Transplanting is started at the 5.5-leaf stage of the seedlings.
Comparative example
The comparative example adopts a conventional seedling raising method, and seeding and seedling raising are carried out on 9 months and 1 day of the Min Chongqing Nanyao breeding base in the Lingshui county of Hainan province.
(1) Preparation, sowing and mulching of water seedling raising seedbed
Selecting field blocks which are smooth to the sun, loose in soil and convenient to drain and irrigate, irrigating, soaking, rotary tillage and leveling, manufacturing seedling boxes, spreading compound fertilizer and phoxim granules, leveling box surfaces, and sowing ten rice recovery systems of Yuhua 2103, Yuhua 7109, Yuhua 1351, Yuhua 6003, Yuhua 5028, Yuhua 9341, Huazhan, Yuhe silk seedlings, Yuhua 139 and Yudao 86 after leveling. Before sowing, 10 variety labels are inserted according to the sowing quantity, the label height is 20cm, and then sowing is performed in sequence according to the label sequence.
(2) Inserting arch bar, covering film and field management and protection
After the sowing is finished, the arched sheds are obliquely inserted and supported at two ends of the compartment surface by using arched rods with the length of 200cm, the arched rods are spaced by about 80cm, after the arched rods are inserted, plastic films are covered on the arched rods, and the two ends and two ends of the compartment surface are compacted by mud to prevent the arched sheds from being blown open by strong wind. And paying attention to observe the germination condition of the seeds, uncovering two ends of the seedling box in time for ventilation and cooling after the seeds germinate, and cutting a film at the middle equal position for ventilation and cooling to avoid high-temperature seedling burning. Because of open heat dissipation, the humidity is also dissipated quickly. Irrigation is required to be carried out in the seedling ditches in time, the seedling ditches are required to retain water and moisture and prevent the seedling bed from being flooded with water to submerge the seeds when the seeds germinate to 1 leaf and 1 heart, membrane uncovering at two ends of the seedling bed is also easy to damage by birds and mice, and the seed germination is seriously influenced due to improper management and protection. Causing drought, water accumulation or biological damage, low emergence rate, seedling shortage and even seedling burning, and causing failure of seedling cultivation.
(3) Uncovering and closing the film in the 2-leaf stage of the seedling
Because the technology uncovers the film at two ends and cuts the opening in the middle to cool and prevent the seedling from burning after the seed is germinated, the water loss is too fast and the temperature and the humidity of a seedling bed are not uniform, the seed germination is inconsistent, the germination is fast at a place with good temperature and humidity, the seedling emergence is slow at a drought place, and the seedling uncovering is correspondingly delayed. Uncovering the film at about 2-leaf stage, collecting the arch stalk, irrigating in the field, and preventing the seedlings from flooding in water depth.
(4) Field management and timely transplantation
After irrigation in the field, the snail pesticide is spread to avoid the damage of the seedlings by the snails, and urea is spread to apply the pesticide in time so as to pay attention to the pest control. Transplanting the seedlings in time when the seedlings grow to 5.0-6.0 leaves.
The seedling raising methods of examples 1 and 2 and comparative example were compared, and the results are shown in table 1. As can be seen from Table 1, compared with the conventional seedling raising method, the rice seedling raising method of the invention can reduce the material cost, labor cost and seed loss rate, and greatly improve the emergence rate of seeds.
TABLE 1 comparison of rice seedling raising methods
According to the embodiment, the rice seedling raising method is light, simple and harmless, and high in safety, the sun-shading net is adopted to cover the rice seedlings, the moisture preservation and heat preservation effects are achieved, rainwater erosion and damage of birds and mice to seeds can be avoided, and the rice seedling raising method is light, simple and harmless.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A simple rice seedling raising method is characterized by comprising the following steps:
(1) preparing a water seedling raising seedbed, sowing, and covering a sunshade net on a compartment surface;
(2) irrigating and uncovering the sunshade net when the rice seedlings grow to one leaf and one heart;
(3) and (4) transplanting the rice seedlings to the 4.0-5.5 leaf stage of the rice in field management.
2. The rice seedling raising method according to claim 1, wherein the preparation of the water seedling raising seedbed in the step (1) comprises seedling box making and fertilizer application and pesticide application.
3. The rice simple seedling raising method according to claim 2, wherein the seedling box is manufactured into a seedling box with a box width of 100-150 cm and a box ditch of 20-40 cm after the selected seedling box is irrigated, rotary-tilled and raked; the fertilization and pesticide application is to apply 40-45% of compound fertilizer 300-450 kg/hm 2 And 2-5% of phoxim granules 40-80 kg/hm 2 。
4. The simple rice seedling raising method as claimed in claim 3, wherein N, P in the compound fertilizer 2 O 5 、K 2 The content ratio of O is 15-22: 8-15: 10 to 15.
5. The rice simple seedling raising method according to claim 1, wherein the sunshade net in the step (1) is a round silk black 3-needle or 4-needle sunshade net.
6. The rice simple seedling raising method according to claim 1, wherein the sunshade net is uncovered after the water is poured to be completely submerged and soaked in the step (2).
7. The rice seedling raising method as claimed in claim 1, wherein the field management in step (3) includes water and fertilizer management and pest control.
8. The rice seedling raising method as claimed in claim 7, wherein the water and fertilizer management is to maintain the water layer of the rice seedling bed for 3-5 cm and to apply 45-75 kg/hm 2 The urea of (1).
9. The rice seedling raising method according to claim 7, wherein the reagent for pest control comprises niclosamide ethanolamine salt, dimehypo and abamectin; the effective component content of the niclosamide ethanolamine salt is 40-60%, the effective component content of the dimehypo is 20-30%, and the effective component content of the abamectin is 2-8%; the dosage of the niclosamide ethanolamine salt is 600-900 g/hm 2 The dosage of the dimehypo is 2500-3500 ml/hm 2 The using amount of the abamectin is 200-260 ml/hm 2 。
10. The rice simple seedling raising method according to claim 9, wherein the niclosamide ethanolamine salt is mixed with 225-300 kg/hm after being irrigated and stripped 2 The fine sandy soil is uniformly spread; the dimehypo and the abamectin are diluted by water and sprayed in the 2-leaf stage or after the occurrence of pests; the ratio of the total volume of the dimehypo and the abamectin to the volume of the water is 3-4: 400-500.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213921A (en) * | 2008-01-15 | 2008-07-09 | 天津市原种场 | Arc frame perforating hardening-seedling method for rice seedling-raising |
| CN104855197A (en) * | 2015-06-09 | 2015-08-26 | 杨艳 | Simple rice dry-nursery and sparse transplanting method |
| CN105981621A (en) * | 2015-05-19 | 2016-10-05 | 韦军龙 | Early-rice dry seedling raising method |
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2022
- 2022-04-20 CN CN202210415448.4A patent/CN114885778A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101213921A (en) * | 2008-01-15 | 2008-07-09 | 天津市原种场 | Arc frame perforating hardening-seedling method for rice seedling-raising |
| CN105981621A (en) * | 2015-05-19 | 2016-10-05 | 韦军龙 | Early-rice dry seedling raising method |
| CN104855197A (en) * | 2015-06-09 | 2015-08-26 | 杨艳 | Simple rice dry-nursery and sparse transplanting method |
Non-Patent Citations (4)
| Title |
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| 刘桂敏: "水稻机插秧软盘旱育苗技术", 《吉林农业》 * |
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