CN110809966A - Method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to rice sides and application of method - Google Patents
Method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to rice sides and application of method Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C14/00—Methods or apparatus for planting not provided for in other groups of this subclass
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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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
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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
Abstract
The invention discloses a method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the side of rice and application thereof. The method comprises the following steps: (1) dry ploughing and harrowing for land preparation: ploughing a field, then irrigating to soak the field, raking the field and leveling the field surface; (2) seed selection and seedling raising: raising the selected rice seeds to obtain rice seedlings; (3) transplanting rice seedlings, applying fertilizer and applying pesticide: during transplanting, the pesticide fertilizer is simultaneously applied to soil in a side-deep application mode; the application depth of the pesticide fertilizer is 4-5 cm, and the distance between the pesticide fertilizer and rice seedlings is 3-5 cm. The invention synchronously carries out the side deep application of pesticide and fertilizer when transplanting rice, can obviously reduce the leaf rolling rate and the number of rice planthoppers in the growth process of rice, improves the yield of rice, has no pesticide residue in rice, saves time and labor and has obvious economic benefit.
Description
Technical Field
The invention belongs to the field of crop cultivation, and particularly relates to a method for synchronously and mechanically transplanting rice by deeply applying pesticide and fertilizer to the side of rice and an application of the method.
Background
The pesticide is mainly used for controlling pests in crops, the fertilizer provides necessary nutrition for the growth of the crops, the pesticide and the fertilizer are all needed by the crops, and the pesticide fertilizer is obtained by processing and fusing the pesticide and the fertilizer together through a physical and chemical method[1]Can provide necessary nutrient substances for the growth of crops while preventing and controlling diseases, pests and weeds of the crops[2]The method has the advantages of labor saving, cost saving, quality improvement and efficiency improvement, and caters to the great trend of modern agricultural development.
The deep fertilizer application and furrow application technology can improve the utilization efficiency of the fertilizer and is widely accepted. However, the deep-planting and furrow-planting techniques have not been well utilized on rice because the rice planting soil is submerged under the water layer for a long time. 2015, Wangchunjiang[3]Research shows that the rice side deep application has great influence on the increase of rice yield. With the production of side-subsoiling machines, side-subsoiling in paddy fields has become possible. The side deep fertilizing technology is that while the rice is transplanted mechanically, fertilizer is applied to the soil beside the rice seedling root in one step with the side deep fertilizer applicator[4]. The technology has effects of promoting early stage vegetative growth of rice, and increasing fertilizer utilization rate[5]Reducing environmental pollution and the like[6]。
As early as more than 40 years ago, Zhao is happy[7,8]The root zone application method has been studied, and the application of the drug to the surface soil near the rice seedling is carried out in the root zone, but the application is limited by the application tool, and the deep application cannot be realized, and the actual application is not seen.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the side of the rice.
The invention also aims to provide the application of the method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the rice side.
The purpose of the invention is realized by the following technical scheme: a method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the side of rice comprises the following steps:
(1) dry ploughing and harrowing for land preparation: ploughing a field, then irrigating to soak the field, raking the field and leveling the field surface;
(2) seed selection and seedling raising: raising the selected rice seeds to obtain rice seedlings;
(3) transplanting rice seedlings, applying fertilizer and applying pesticide: during transplanting, the pesticide fertilizer is simultaneously applied to soil in a side-deep application mode; the application depth of the pesticide fertilizer is 4-5 cm, and the distance between the pesticide fertilizer and rice seedlings is 3-5 cm.
The field in the step (1) is preferably a field with good ecological conditions and flat terrain.
The plowing depth of the field in the step (1) is 8-12 cm; preferably 10 cm.
The irrigation field soaking in the step (1) is realized by the following operations: the irrigation water is 4-7 cm (preferably 5cm) higher than the ground, and the field is soaked for 2-5 days (preferably 2 days).
The seed selection in the step (2) is to select a rice variety with vigorous growth vigor, strong stress resistance, compact plant type and high rice quality.
The rice variety is preferably Wu you 1179 and Longliang 1988.
The seedling raising in the step (2) adopts a plastic seedling raising tray to raise seedlings.
The specification of the plastic seedling raising tray is preferably as follows: the seedling throwing disc 353 has holes of 60 multiplied by 33cm, the caliber of 23mm, the depth of 18mm and the bottom diameter of 11 mm.
The period of raising the seedlings in the step (2) is spring or autumn; preferably 3-4 months.
The seedling raising time in the step (2) is 12-15 days; preferably 12 days.
The height of the rice seedling in the step (2) is 15-20 cm; preferably 16 cm.
The period of transplanting rice seedlings in the step (3) is spring or autumn; preferably for month 4.
And (4) transplanting rice seedlings in the step (3) by adopting a riding type high-speed rice transplanter.
The distance between the seedlings planted in the step (3) is 14-17 cm (preferably 14 or 17cm), and the depth is 2-5 cm (preferably 5 cm).
The pesticide fertilizer in the step (3) is a pesticide fertilizer containing thiamethoxam, or a pesticide fertilizer obtained by mixing thiamethoxam and a fertilizer; preferably a pesticide fertilizer containing 0.08%/kg thiamethoxam; more preferably 0.08% thiamethoxam granules.
The application depth of the medical fertilizer in the step (3) is preferably 5 cm.
The distance between the pesticide fertilizer and the rice in the step (3) is preferably 3 cm.
The fertilizer is a fertilizer required by daily rice; preferably rainbow brand bulk blend fertilizer high-concentration BB fertilizer 24-7-19.
The application amount of the pesticide fertilizer in the step (3) is 35-40 g/m2(ii) a Preferably 38.65g/m2。
The method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the side of rice is applied to rice planting.
Compared with the prior art, the invention has the following advantages and effects:
(1) ① has fast absorption speed, high efficiency, long residual period ②,1 time application in rice growth period to protect rice from main pests, ③ to prevent loss, ④ to protect rice from damage, ⑤ to reduce air pollution, ⑥ to delay resistance, ⑦ to mix pesticide and fertilizer for use, so reducing labour force, not afraid of rain wash, and increasing yield[9]The invention aims to explore the control effect of the pesticide-fertilizer side deep application technology on pests and the influence of the growth and the yield of rice in the growth process of the rice by comparing the pesticide-fertilizer side deep application with the conventional fertilizer application.
(2) The invention synchronously carries out the side deep application of the pesticide fertilizer when transplanting rice, the leaf rolling rate and the quantity of rice planthoppers are obviously lower than those of the conventional fertilizer application and pesticide application groups in the growth process of rice, the side deep application of the pesticide fertilizer is higher than that of the rice of the conventional fertilizer application and pesticide application groups, the average yield per mu is increased by 12.8 percent, and the pesticide fertilizer is synchronously and laterally deeply applied to the soil along with a machine during transplanting rice, thereby reducing the links of manual fertilizer application and pesticide application, greatly reducing the labor intensity, improving the labor efficiency and reducing the labor cost. Collecting samples during harvesting to respectively detect the pesticide residues in rice plants, paddy and soil, wherein the pesticide residues comprise thiamethoxam and thiamethoxam degradation product thiamethoxam, and thiamethoxam are not detected in the rice plants, the paddy and the soil. The side deep application of the pesticide fertilizer can obviously reduce the leaf rolling rate of rice and rice planthoppers, improve the yield of the rice, and the rice has no pesticide residue, time and labor are saved, and the economic benefit is obvious.
Drawings
FIG. 1 is a graph of the results of the detection of thiamethoxam content in rice plants.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto. The pesticides, methods and equipment employed in the present invention are conventional in the art unless otherwise specified.
Example 1
(1) Land preparation: the site is selected from a demonstration base of southern China agriculture university in the Zengcheng district of Guangzhou city, the ecological condition is good, and the terrain is flat; and (3) ploughing the land by 10cm in a dry ploughing and water harrowing manner, then irrigating for 2 days by 5cm above the ground, soaking the land, harrowing and leveling the land surface. The above experimental design is that the side deep application of pesticide and fertilizer is carried out when rice is transplanted, and is compared with the conventional rice cultivation with fertilizer and pesticide application.
(2) Seed selection and seedling raising: the rice variety Wu you 1179 and Longliang you 1988 with vigorous growth vigor, strong stress resistance, compact plant type, excellent rice quality and different thiamethoxam absorption amount are selected. After the rice seeds are selected, the rice seedlings are raised in the enriched city base by using a plastic seedling raising tray after 4 months and 3 days. Adding special matrix soil (purchased from Guangzhou Sheng agriculture Co., Ltd.) for rice seedling raising into a plastic seedling raising tray (60 multiplied by 33cm, 353 holes for hand throwing, 23mm in caliber, 18mm in depth and 11mm in bottom diameter), scattering the rice seeds for accelerating germination on the seedling raising tray, covering a layer of special matrix soil for rice seedling raising, growing the rice to 16cm after 12 days, and transplanting by using a machine in the field.
(3) Transplanting rice seedlings and fertilizing: transplanting rice seedlings by a riding type high-speed rice transplanter (product model: 2Z-6B2 (PZ 60-H) in 14 days 4 monthsDRT), number of lines of operation: line 6, manufacturer: a Limited department of agricultural machinery (Changzhou), the transplanting distance is 17cm, the depth is 5cm, and each variety is respectively corresponding to 2 treatments: conventional fertilization and application and pesticide-fertilizer side deep application are carried out in 8 cells, and the area of each cell is 414m2(ii) a Wherein, the conventional fertilizer application and application group is that after machine seedling transplanting, 16kg of rainbow brand compound fertilizer high-concentration BB fertilizer 24-7-19 (purchased from Guangdong Tianhe chemical fertilizer Co., Ltd., nitrogen: large-particle urea; phosphorus: diammonium phosphate; potassium: potassium chloride; nitrogen-phosphorus-potassium: 24-7-19) is applied in a scattering way, 30% thiamethoxam suspending agent 0.75mL (Bao Green agricultural group in plant protection institute of Chinese academy of agricultural sciences) is diluted into 35L water, and rice is treated by spraying, wherein the effective concentration is 21.43 mg/L; when the pesticide-fertilizer side deep-application group is used for transplanting seedlings by a machine, the pesticide-fertilizer is synchronously and laterally applied to the soil, the distance between a transplanter which is used for transplanting the seedlings by a riding-type high-speed transplanter and a fertilizer application device is adjusted to 3cm, the fertilizer application amount is set to be 25.73 kg/mu (namely the fertilizer application amount ranges from 0 kg/mu to 38 kg/mu; 25.73 kg/mu in the experiment), the effective content of thiamethoxam is 0.08%/kg (each kg of pesticide-fertilizer contains 0.08% kg of thiamethoxam), the pesticide-fertilizer used in the experiment is mixed pesticide-fertilizer particles produced by Gendlilong Biochemical Limited company, namely 0.08% thiamethoxam particles, and the production approval certificate of pesticide products is as follows: HNP 51063-A9328, registration certificate number of pesticide: PD 20182990; the fertilizer is applied to each cell by 16kg, the application depth is 5cm, the distance from the fertilizer to the rice is 3cm, and the fertilizer application or the pesticide application is not needed from sowing to harvesting.
(4) Pest comprehensive control investigation and sampling: measuring the plant height of the paddy rice 19 days and 93 days after transplanting, detecting the tillering number and the ear length of the paddy rice 93 days after transplanting, investigating the leaf rolling rate and the quantity of rice planthoppers of the paddy rice in different communities in a field 49 days after transplanting, analyzing the control effect of different treatment modes on diseases and pests, collecting samples, and comparing the influence of different paddy treatment modes on the growth of the paddy rice. Wherein, the measurement method comprises the following steps:
10 plants are collected to a laboratory in the field, the plant height and the ear length are measured by a ruler, the number of tillers is measured, the leaf rolling rate is counted according to GB/T17980.1-2000, and the rice planthopper prevention and control rate is counted according to GB/T17980.4-2000.
(5) Harvesting rice: rice was harvested in the field 108 days after the rice transplanting (4.3 seedlings were raised, 4.14 seedlings were transplanted, 7.30 harvests, and the total time from the raising to the harvesting was 119 days), and the rice yields were measured respectively.
The results of comparing the rice with the side deep application of the drug fertilizer and the conventional application of the fertilizer are shown in table 1: table 1 shows that the rice with the pesticide-fertilizer side deeply applied is compared with the rice with the conventional fertilizer application, and as shown in table 1, the rice growth can be promoted, the tillering number and the panicle length of the rice can be increased, and the rice yield can be increased by the method of the pesticide-fertilizer side deeply applied compared with the rice with the conventional fertilizer application. During the growth period of rice, the leaf rolling rate of deep application of Longliangyou 1988 pesticide and fertilizer side is only 0.4%, the control effect of rice planthoppers is 98.59%, the leaf rolling rate of conventional fertilizer and fertilizer application is 40.4%, and the control effect of the rice planthoppers is 78.88%. The leaf rolling rate of the side deep application of the Wuyou 1179 pesticide fertilizer is 0, the control effect of the rice planthoppers is 98.17 percent, the leaf rolling rate of the conventional fertilizer application is 54 percent, and the control effect of the rice planthoppers is 81.32 percent.
TABLE 1 comparison of rice with side deep application of pesticide and fertilizer and conventional application of fertilizer and pesticide
Note: different letters within the same row represent significant differences at the 0.05 level.
(6) Detection of thiamethoxam and clothianidin
The detection method comprises the following steps:
A. drawing a standard curve
The instrument comprises the following steps: shimadzu LCMS-8060 triple quadrupole rod LC-MS
The detection conditions are as follows: a chromatographic column: shim-pack XR-ODS III (2.0mm x 150mm)
Mobile phase and gradient elution conditions:
TABLE 2 detection of mobile phase and gradient elution conditions of thiamethoxam and clothianidin by liquid-phase mass spectrometry
Mass spectrum conditions:
atomizing: 3.0L/min, dry gas: 10L/min, heating gas: 10L/min.
Ion source interface temperature: 300 ℃, heating block temperature: 400 ℃, desolventizing gas temperature: at 250 ℃, an ESI ion source is adopted, and a positive source and a negative source are used for scanning a multi-reaction monitoring (MRM) mode simultaneously.
The mass spectrometric monitoring parameters of thiamethoxam and clothianidin are shown in table 3.
TABLE 3 Mass Spectrometry monitoring parameters of thiamethoxam and clothianidin
Thiamethoxam and clothianidin are prepared into 10000mg/L mixed standard stock solution by using dimethyl sulfoxide and stored at the temperature of minus 20 ℃. During the test, matrix blank solutions (the matrix is rice roots, leaves, rice husks, brown rice and soil, the matrix blank solutions are obtained by processing rice and soil without medicine according to a sample treatment mode) are gradually diluted to prepare series matrix standard solutions with mass concentrations of 0.01, 0.05, 0.1, 0.5 and 1mg/L, the matrix standard solutions with different concentrations are measured, and a standard curve is drawn by using the peak area of a target component and the corresponding mass concentration.
Table 4 is a standard curve of thiamethoxam and clothianidin in different matrices, with linear correlation.
TABLE 4 Standard curves of thiamethoxam and clothianidin in different matrices
B. Sample processing
Sample preparation: husking the harvested rice sample, dividing the rice sample into rice hulls and brown rice, grinding the rice hulls, the brown rice and the rice by using a grinder, respectively, cutting root and leaf samples into small sections of 1cm, uniformly mixing, and hermetically storing at-20 ℃ for later use. Soil samples collected in the rice field 108 days after rice transplanting are collected at 5 points in each plot, and 1kg is collected at each point for later use.
Extraction and purification: accurately weighing a sample (1g of roots and 5g of leaves) in a mortar, adding liquid nitrogen, grinding, adding 0.1% (v/v) acetic acid acetonitrile (5 mL of roots and 10mL of leaves) and ultrapure water (1 mL of roots and 2mL of leaves) for extraction, accurately weighing the sample (5 g of paddy and brown rice, 2g of rice hulls and 10g of soil) in a 50mL centrifuge tube, and adding 0.1% (v/v) acetic acid acetonitrile (20 mL of paddy and brown rice and 10mL of rice hulls and soil) and ultrapure water (6 mL of paddy and brown rice, 5mL of rice hulls and 3mL of soil). Vortex, shake and mix the sample for 3min, ultrasonic for 30min, add the extraction reagent (root: anhydrous MgSO)40.5g, NaCl 0.2 g; leaf: anhydrous MgSO (MgSO)41g, NaCl 0.5 g; paddy, brown rice, rice hull and soil: anhydrous MgSO (MgSO)42g, NaCl 1 g; ) Again vortex and mix for 2 min; centrifuging at 4500r/min for 5 min; collecting supernatant 1mL, adding purifying agent (root, rice, brown rice, rice hull and soil: PSA (purifying material PSA: Chinese name: N-propyl ethylenediamine, available from Welch corporation, USA) 0.025g, anhydrous MgSO40.15 g; leaf: PSA0.025g, anhydrous MgSO40.15g of GCB (GCB is Carbon-GCB, Chinese name is graphitized Carbon black, purchased from Shanghai' an spectral experiment science and technology Co., Ltd.) 0.01g), uniformly mixing by vortex for 1min, and centrifuging for 5min at 14000 r/min; the supernatant was filtered through a 0.22 μm filter and placed in a liquid bottle for assay.
C sample detection
Accurately adding 3 levels of thiamethoxam and clothianidin mixed stock solutions of 0.02, 0.1 and 1mg/L into blank samples of roots and leaves, and accurately adding 3 levels of thiamethoxam and clothianidin mixed stock solutions of 0.01, 0.1 and 1mg/L into blank samples of rice hulls, brown rice, paddy rice and soil. Repeating each level for 5 times, processing the sample according to the method of step B, monitoring the sample according to the method of step A, quantifying by matrix matching external standard method, and calculating the addition recovery rate and relative standard deviation.
The additive recovery in the different matrices is shown in table 5: table 5 shows the addition recovery of thiamethoxam and clothianidin in rice roots, leaves, rice hulls, brown rice, rice and soil, the maximum residual quantity of thiamethoxam and clothianidin in rice plants and rice is 0.1ppm, the addition recovery of 0.02ppm, 0.1ppm and 1ppm is carried out in the rice roots and leaves according to the standard, and the addition recovery of 0.01ppm, 0.1ppm and 1ppm is carried out in the rice hulls, brown rice, rice and soil.
TABLE 5 addition recovery of thiamethoxam and clothianidin to rice roots, leaves, rice hulls, brown rice, rice and soil
FIG. 1 shows the results of detecting the content of thiamethoxam in rice plants, rice samples were collected 7 days and 70 days after rice transplanting, and the content of thiamethoxam was detected in the plants deeply fertilized with rice fertilizer, no clothianidin was detected, and no thiamethoxam and clothianidin were detected in the rice plants fertilized with conventional fertilizer. Thiamethoxam and clothianidin are not detected in rice hulls, brown rice, paddy and soil which are deeply applied on the side of the rice pesticide fertilizer and applied by conventional fertilization. The pesticide fertilizer side is deeply applied to soil and paddy without pesticide residue, so that the environment is safe, and the rice is safe and edible.
The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.
Reference to the literature
[1] The current pesticide and fertilizer market research and analysis [ J ] pesticide market information, 2019(18) 39-40.
[2] Zhou Chuan, He Wen Wei, Qinxiyun, and the like, the evaluation of the control effect of the integration of the pesticide and the fertilizer on the tobacco bacterial wilt [ J ] Hunan agricultural science, 2018(02):67-69.
[3] Wangchunjiang rice side deep fertilization technical test summarizes [ J ] modern agriculture, 2015(05) 23-24.
[4] Houpenfu, Xuelixiang, Shu Ying 20510, etc. the slow-controlled fertilizer-releasing side deep application has the control effect on ammonia volatilization emission in a rice field [ J ] environmental science, 2017,38(12):5326-5332.
[5]Zhu C,Xiang J,Zhang Y,et al.Mechanized transplanting with sidedeep fertilization increases yield and nitrogen use efficiency of rice inEastern China[J].Scientific Reports, 2019,9(1).
[6] Chenxiudong-rice side-deep fertilization technical analysis [ J ] agricultural technology and equipment, 2019(05):76-77.
[7] Zhao Hai Huan, Luoyinghao, xu Zhi, et al. New progress of the experimental study of drug application in root zone [ J ] plant protection bulletin, 1981(04): 275-.
[8] Zhao Ganhuan, Huang Zhangxin, Huang Bing Ping, etc. the principle of applying pesticide in root zone and its application in preventing and controlling rice pests [ J ] proceedings of the college of agriculture in south China, 1980(02) 1-32.
[9] Zhao Ganhuan, Ficus pumila, test research on applying pesticide to root zone of rice [ J ] agricultural chemicals industry, 1977(04): 52-56.
Claims (10)
1. A method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the side of rice is characterized by comprising the following steps:
(1) dry ploughing and harrowing for land preparation: ploughing a field, then irrigating to soak the field, raking the field and leveling the field surface;
(2) seed selection and seedling raising: raising the selected rice seeds to obtain rice seedlings;
(3) transplanting rice seedlings, applying fertilizer and applying pesticide: during transplanting, the pesticide fertilizer is simultaneously applied to soil in a side-deep application mode; the application depth of the pesticide fertilizer is 4-5 cm, and the distance between the pesticide fertilizer and rice seedlings is 3-5 cm.
2. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 1, wherein:
the pesticide fertilizer in the step (3) is pesticide fertilizer containing thiamethoxam or pesticide fertilizer obtained by mixing thiamethoxam and fertilizer.
3. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 2, wherein:
the pesticide fertilizer in the step (3) is a pesticide fertilizer containing 0.08%/kg thiamethoxam.
4. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 3, wherein:
the pesticide fertilizer in the step (3) is 0.08% thiamethoxam granules.
5. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 1, wherein:
the application amount of the pesticide fertilizer in the step (3) is 35-40 g/m2。
6. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 1, wherein:
the plowing depth of the field in the step (1) is 8-12 cm;
the height of the rice seedling in the step (2) is 15-20 cm;
the distance between the rice seedlings planted in the step (3) is 14-17 cm, and the depth is 2-5 cm.
7. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 1, wherein:
the irrigation field soaking in the step (1) is realized by the following operations: irrigating water 4-7 cm higher than the ground, and soaking the field for 2-5 days;
and (3) the seedling raising time in the step (2) is 12-15 days.
8. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 1, wherein:
the application depth of the medical fertilizer in the step (3) is 5 cm;
the distance between the pesticide fertilizer and the rice in the step (3) is 3 cm.
9. The method for the mechanical transplanting of rice seedlings synchronously with the deep pesticide and fertilizer application at the rice side as claimed in claim 1, wherein:
the field in the step (1) is a field with good ecological conditions and flat terrain;
the seedling raising in the step (2) is carried out by adopting a plastic seedling raising tray;
the period of raising the seedlings in the step (2) is spring or autumn;
the period of transplanting rice seedlings in the step (3) is spring or autumn;
and (4) transplanting rice seedlings in the step (3) by adopting a riding type high-speed rice transplanter.
10. The application of the method for synchronously and mechanically transplanting rice seedlings by deeply applying pesticide and fertilizer to the sides of rice as claimed in any one of claims 1 to 9 in rice planting.
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| CN111771498A (en) * | 2020-07-30 | 2020-10-16 | 江西省农业科学院土壤肥料与资源环境研究所 | Machine-transplanting side deep fertilization method for double cropping rice |
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