A method for integrated chemical regulation of corn-soybean strip intercropping

Abstract

The application relates to the technical field of chemical regulation of crops, and discloses an integrated chemical regulation method for maize-soybean strip intercropping, which comprises the following steps: S1. spraying an aqueous solution of fresh amine ester and ethylene in the whole field in the maize jointing period; spraying the aqueous solution of fresh amine ester and ethylene in the whole field in the maize large trumpet mouth period; S2. spraying triadimefon in the whole field in the soybean branching period and the soybean initial flowering period; and S3. field management until harvesting. The integrated chemical regulation method sprays one chemical regulation agent on maize and soybean at the same time, is convenient for field mechanized operation, and does not decrease the group yield and total output value compared with separate chemical regulation.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of crop chemical regulation, and particularly relates to a corn-soybean strip intercropping integrated chemical regulation method. BACKGROUND

[0002] The rapid growth of global population has brought great pressure on food production. In recent years, the cultivated land area has gradually decreased, and the population has continuously increased, which requires the development of food industry to meet domestic demand. Intercropping increases the yield per unit area by improving light and land resources. Corn-soybean strip planting mode is based on the innovation and development of traditional intercropping. This mode fully utilizes space and light resources, solves the contradiction between the two, and realizes corn yield without yield reduction and one more season of soybean.

[0003] In intercropping, high-position crops shade low-position crops, which will promote the increase of soybean plant height and the decrease of stem strength, and cause lodging and yield reduction in the late growth period of soybean. Corn and soybean are two different species in different families, and their chemical regulation mechanisms are different. Corn plant height is greatly affected by intercalary meristem, while soybean is affected by apical meristem. At present, the chemical regulation technology for corn-soybean strip intercropping in production is to separately control corn and soybean. Ethylene is commonly used in corn production, and spraying ethylene on soybean will cause pod shedding. Triazole is more commonly used for soybean, but the effect of triazole on corn is smaller than that of ethylene. In order to avoid mutual influence, small spray machines are used to spray different agents on corn and soybean respectively, and separate chemical regulation is carried out, which increases the process and labor intensity and is completely unsuitable for large-scale planting. Therefore, it is extremely important to develop a corn-soybean strip intercropping integrated chemical regulation method which can save process and labor intensity. SUMMARY

[0004] The application discloses a corn-soybean strip intercropping integrated chemical regulation method, which solves the problem of separate chemical regulation of corn and soybean in the prior art, increases the process and labor intensity, and is completely unsuitable for large-scale planting.

[0005] A corn-soybean strip intercropping integrated chemical regulation method, the specific steps include:

[0006] S1. At the jointing stage of corn, a water solution of aminoethoxyvinyl-dimethyl ether and ethylene is sprayed on the whole field; at the large trumpet stage of corn, a water solution of aminoethoxyvinyl-dimethyl ether and ethylene is sprayed on the whole field;

[0007] S2. At the branching stage and initial flowering stage of soybean, an aqueous solution of uniconazole is sprayed on the whole field, respectively;

[0008] S3. Field management until harvest.

[0009] Preferably, the water-soluble component of the amino acid and ethephon is in the ratio of amino acid: ethephon: auxiliary = 3%: 27%: (0-2%), and the solvent is water.

[0010] Preferably, the water-soluble component of the amino acid and ethephon is in the ratio of amino acid: ethephon: auxiliary = 3%: 27%: (0-2%), and the solvent is water. 2 Preferably, the water-soluble component of the amino acid and ethephon is in the ratio of amino acid: ethephon: auxiliary = 3%: 27%: (0-2%), and the solvent is water. 2

[0011] Preferably, the water-soluble component of the amino acid and ethephon is in the ratio of amino acid: ethephon: auxiliary = 3%: 27%: (0-2%), and the solvent is water. 2 Preferably, the water-soluble component of the amino acid and ethephon is in the ratio of amino acid: ethephon: auxiliary = 3%: 27%: (0-2%), and the solvent is water. 2

[0012] Compared with the prior art, the present application has the following beneficial effects:

[0013] 1. The integrated chemical regulation method of the present application simultaneously sprays one chemical regulator for corn and soybeans, which is convenient for field mechanized operation; and compared with separate chemical regulation, the group yield and total yield value do not decrease.

[0014] 2. Spraying the chemical regulator is beneficial to the construction of good group structure of corn and soybeans, and improves the yield.

[0015] 3. The chemical regulator treatment can effectively control the internode traits of soybeans, prevent corn from shading, and thus prevent the reduction of yield caused by the elongation of soybean stems and stalks. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to specific embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0017] The methods described in the embodiments of the present application are all conventional methods unless otherwise specified. The materials, reagents, etc. used are all commercially available unless otherwise specified.

[0018] Embodiment 1

[0019] A test was carried out in the Xinjiang Production and Construction Corps. The corn selected was Dianhai 618 with compact plant type and high yield, and the soybean selected was Jiyu 441, which is the local main variety. The corn and soybeans were sown on April 26. The strip intercropping system production unit was 2.4 meters, the corn-soybean row ratio was 2:4, the corn row spacing was 60 cm, the corn density was 105000 plants / hm 2 , the soybean row spacing was 18 cm, the corn-soybean spacing was 60 cm, and the soybean density was 180000 plants / hm​​2 ;

[0020] A corn-soybean strip intercropping integrated chemical regulation method, characterized in that the specific steps comprise:

[0021] S1. Sowing time: corn and soybean are sown on April 26.

[0022] S2. At the corn jointing stage, the whole field is sprayed with an aqueous solution of fresh amine ester and ethylene 300 g / hm 2 ; at the corn large trumpet stage, the whole field is sprayed with an aqueous solution of fresh amine ester and ethylene 450 g / hm 2 ; wherein the main component ratio of the aqueous solution of fresh amine ester and ethylene is: fresh amine ester: ethylene = 3%: 27%.

[0023] S3. At the soybean branching stage, the whole field is sprayed with uniconazole 450 g / hm 2 ; at the initial flowering stage of soybean, the whole field is sprayed with uniconazole 750 g / hm 2 .

[0024] S4. Field management until harvest.

[0025] Example 2

[0026] In Inner Mongolia, the compact plant type of corn is selected, and the high-yield Dianhai 605 is promoted; the local main variety Jiyu 86 is selected for soybean, and corn and soybean are sown on April 29; the strip intercropping system production unit is 2.6 meters, the corn-soybean row ratio is 2:4, the corn row spacing is 40 cm, the corn density is 75,000 plants / hm 2 , the soybean row spacing is 30 cm, the corn-soybean spacing is 60 cm, and the soybean density is 150,000 plants / hm 2 .

[0027] A corn-soybean strip intercropping integrated chemical regulation method, the specific steps comprising:

[0028] S1. Sowing time: corn and soybean are sown on April 29.

[0029] S2. At the corn jointing stage, the whole field is sprayed with an aqueous solution of fresh amine ester and ethylene 300 g / hm 2 ; at the corn large trumpet stage, the whole field is sprayed with an aqueous solution of fresh amine ester and ethylene 450 g / hm 2 ; wherein the main component ratio of the aqueous solution of fresh amine ester and ethylene is: fresh amine ester: ethylene = 3%: 27%.

[0030] S3. At the soybean branching stage, the whole field is sprayed with uniconazole 450 g / hm 2 ; at the initial flowering stage of soybean, the whole field is sprayed with uniconazole 750 g / hm 2 .

[0031] S4. Field management until harvest.

[0032] Example 3

[0033] In Anhui pilot, corn is selected with compact plant type, and MY73 is mainly promoted; soybean is selected with local main variety Jindou 99, and corn and soybean are sowed on June 10; the production unit of strip intercropping system is 2.5 meters, the row ratio of corn and soybean is 2:4, the row spacing of corn is 40 cm, the density of corn is 67500 plants / hm 2 , the row spacing of soybean is 30 cm, the spacing of corn and soybean is 60 cm, and the density of soybean is 135000 plants / hm 2 ;

[0034] A method for integrated chemical regulation of corn and soybean strip intercropping, characterized in that the specific steps comprise:

[0035] S1. Sowing time: corn and soybean are sowed on June 10.

[0036] S2. At the corn jointing stage, spray 300 g / hm 2 of water solution of fresh amine and ethylene in the whole field; at the corn large trumpet stage, spray 450 g / hm 2 of water solution of fresh amine and ethylene in the whole field; wherein the main component ratio of water solution of fresh amine and ethylene is: fresh amine: ethylene = 3%: 27%.

[0037] S3. At the soybean branching stage, spray 450 g / hm 2 of water solution of ethylene in the whole field; at the initial flowering stage of soybean, spray 750 g / hm 2 of water solution of ethylene in the whole field.

[0038] S4. Spray in the whole field, and manage the field until harvest.

[0039] Comparative Example 1

[0040] In Xinjiang Production and Construction Corps, corn is selected with compact plant type, and Denghai 618 is mainly promoted; soybean is selected with local main variety Jiyu 441, and corn and soybean are sowed on April 26; the production unit of strip intercropping system is 2.4 meters, the row ratio of corn and soybean is 2:4, the row spacing of corn is 60 cm, the density of corn is 105000 plants / hm 2 , the row spacing of soybean is 18 cm, the spacing of corn and soybean is 60 cm, and the density of soybean is 180000 plants / hm 2 ;

[0041] A method for integrated chemical regulation of corn and soybean strip intercropping, the specific steps comprising:

[0042] Seeding time: corn, soybean were all sowed on April 26; at the corn jointing stage, big trumpet stage, soybean branching stage, initial flowering stage, the whole field was sprayed with the aqueous solution of fresh amine and ethylene; field management until harvest. The amount of each spraying was 300 mL / hm 2 . Among them, the main component ratio of the aqueous solution of fresh amine and ethylene was: fresh amine: ethylene = 3%: 27%.

[0043] Comparative example 2

[0044] In the Xinjiang Production and Construction Corps, corn was selected as a compact plant type and a high-yield leading Dianhai 618; soybean was selected as a local leading variety Jiyu 441, corn and soybean were sowed on April 26; the strip intercropping system production unit was 2.4 meters, the corn and soybean row ratio was 2:4, the corn row spacing was 60 cm, the corn density was 105000 plants / hm 2 , the soybean row spacing was 18 cm, the corn and soybean spacing was 60 cm, and the soybean density was 180000 plants / hm 2 ;

[0045] A method for integrated chemical regulation of corn and soybean strip intercropping, the specific steps comprising:

[0046] Seeding time: corn, soybean were all sowed on April 26; at the corn jointing stage, big trumpet stage, soybean branching stage, initial flowering stage, the whole field was sprayed with the aqueous solution of fresh amine and ethylene; field management until harvest. The amount of each spraying was 300 mL / hm 2 . The main component of tons of field treasure was amino acid, which came from Heilongjiang Hetianfengzexingnong Science and Technology Development Co., Ltd.

[0047] Comparative example 3

[0048] In the Xinjiang Production and Construction Corps, corn was selected as a compact plant type and a high-yield leading Dianhai 618; soybean was selected as a local leading variety Jiyu 441, corn and soybean were sowed on April 26; the strip intercropping system production unit was 2.4 meters, the corn and soybean row ratio was 2:4, the corn row spacing was 60 cm, the corn density was 105000 plants / hm 2 , the soybean row spacing was 18 cm, the corn and soybean spacing was 60 cm, and the soybean density was 180000 plants / hm 2 ;

[0049] A method for integrated chemical regulation of corn and soybean strip intercropping, the specific steps comprising:

[0050] Seeding time: corn, soybean were all sowed on April 26; at the corn jointing stage, big trumpet stage, soybean branching stage, initial flowering stage, the whole field was sprayed with the aqueous solution of fresh amine and ethylene; field management until harvest. The amount of each spraying was 300 mL / hm 2 . The main component of tons of field treasure was amino acid, which came from Heilongjiang Hetianfengzexingnong Science and Technology Development Co., Ltd.

[0051] Comparative Example 4

[0052] In the Xinjiang Production and Construction Corps, the compact plant type of corn was selected, and the high-yield Denshai 618 was promoted. The local main variety Jiyu 441 was selected for soybean. Corn and soybean were sown on April 26. The production unit of strip intercropping system was 2.4 meters, the corn-soybean row ratio was 2:4, the corn row spacing was 60 cm, and the corn density was 105000 plants / hm 2 , the soybean row spacing was 18 cm, the corn-soybean spacing was 60 cm, and the soybean density was 180000 plants / hm 2 ;

[0053] A corn-soybean strip intercropping integrated chemical regulation method, the specific steps comprising:

[0054] Sowing time: corn and soybean were sown on April 26. At the corn jointing stage, the corn trumpet stage, the soybean branching stage, and the initial flowering stage, the whole field was sprayed with Dapo Dun. Field management until harvest. The spraying amount was 675 mL / hm 2 . The main component of Dapo Dun is 30% aminorex and ethylene, which is from Qingdao Debos Plant Protection Co., Ltd.

[0055] Comparative Example 5

[0056] In the Xinjiang Production and Construction Corps, the compact plant type of corn was selected, and the high-yield Denshai 618 was promoted. The local main variety Jiyu 441 was selected for soybean. Corn and soybean were sown on April 26. The production unit of strip intercropping system was 2.4 meters, the corn-soybean row ratio was 2:4, the corn row spacing was 60 cm, and the corn density was 105000 plants / hm 2 , the soybean row spacing was 18 cm, the corn-soybean spacing was 60 cm, and the soybean density was 180000 plants / hm 2 ;

[0057] A corn-soybean strip intercropping integrated chemical regulation method, the specific steps comprising:

[0058] Sowing time: corn and soybean were sown on April 26. At the corn jointing stage, the corn trumpet stage, the soybean branching stage, and the initial flowering stage, the whole field was sprayed with Dapo Dun. Field management until harvest. The spraying amount was 675 mL / hm 2 . The main component of Dapo Dun is 30% aminorex and ethylene, which is from Qingdao Debos Plant Protection Co., Ltd.

[0059] Comparative Example 6

[0060] The test was carried out in Xinjiang Production and Construction Corps, and the compact plant type and high-yield leading Densun 618 was selected for corn, and the local leading variety Jiyu 441 was selected for soybean. The corn and soybean were sown on April 26. The production unit of strip intercropping system was 2.4 meters, the corn and soybean row ratio was 2:4, the corn row spacing was 60 cm, the corn density was 105000 plants / hm 2 , the soybean row spacing was 18 cm, the corn and soybean spacing was 60 cm, and the soybean density was 180000 plants / hm 2 ;

[0061] A method for chemical regulation of corn and soybean strip intercropping integration, the specific steps comprising:

[0062] Sowing time: corn and soybean were sown on April 26. At the corn jointing stage, the corn bell mouth stage, the soybean branching stage and the initial flowering stage, Yutings was sprayed on the whole field. The spraying amount was 450 mL / hm 2 each time, and the field management was until harvest. The main component of Yutings was 40% hydroxyen·ethephon, which was from Jiangsu Anbang Electrification Co., Ltd.

[0063] Comparative example 7

[0064] The test was carried out in Inner Mongolia, and the compact plant type and high-yield leading Densun 605 was selected for corn, and the local leading variety Jiyu 86 was selected for soybean. The corn and soybean were sown on April 29. The production unit of strip intercropping system was 2.6 meters, the corn and soybean row ratio was 2:4, the corn row spacing was 40 cm, the corn density was 75000 plants / hm 2 , the soybean row spacing was 30 cm, the corn and soybean spacing was 60 cm, and the soybean density was 150000 plants / hm 2 ; no chemical regulation was carried out, and the field management was until harvest.

[0065] Comparative example 8

[0066] The test was carried out in Anhui, and the compact plant type and high-yield leading MY73 was selected for corn, and the local leading variety Jindou 99 was selected for soybean. The corn and soybean were sown on June 10. The production unit of strip intercropping system was 2.5 meters, the corn and soybean row ratio was 2:4, the corn row spacing was 40 cm, the corn density was 67500 plants / hm 2 , the soybean row spacing was 30 cm, the corn and soybean spacing was 60 cm, and the soybean density was 135000 plants / hm 2 ; no chemical regulation was carried out, and the field management was until harvest.

[0067] Table 1 Yield and output value after spraying different chemical regulation agents

[0068]

[0069] From table 1, it can be seen that spraying the chemical regulation agent can significantly improve the economic benefit, and there is a significant difference between the yield of different chemical regulation agent treatments. The population yield of example 1 is increased by 19.87%, 7.44%, 37.47%, 102.31%, 49.97% and 32.21% respectively compared with comparative examples 1-6, and the total yield is increased by 19.87%, 7.44%, 37.47%, 102.31%, 49.97% and 32.21% respectively. The population yield of example 2 is reduced by 0.95% compared with comparative example 7, wherein the corn yield is reduced by 6.55%, the soybean yield is increased by 91.67%, and the total yield is increased by 6.86%; the population yield of example 3 is increased by 25.05% compared with comparative example 8, wherein the corn yield is increased by 12.86%, the soybean yield is increased by 12.86%, and the total yield is increased by 38.49%. It can be seen that the present application can improve the economic benefit by increasing the soybean yield.

[0070] Although preferred embodiments of the application have been described, those skilled in the art will be able to make additional modifications and variations without departing from the spirit and scope of the application. Accordingly, the appended claims are intended to encompass all such modifications and variations as falling within the scope of the application.

[0071] Obviously, various modifications and changes can be made to the present application without departing from the spirit and scope thereof. Accordingly, it is intended that the present application embrace all such modifications and changes as fall within the scope of the appended claims and their equivalents.

Claims

1. A method for integrated chemical regulation of corn-soybean strip intercropping, characterized in that, The specific steps include: S1. At the corn jointing stage, spray the whole field with an aqueous solution of dimethomorph and ethephon, the spraying amount being 300 g / hm 2 ; at the corn large trumpet stage, spray the whole field with an aqueous solution of dimethomorph and ethephon, the spraying amount being 450 g / hm 2 ; S2. At the branching stage of soybean, uniconazole is sprayed on the whole field at a spraying amount of 450 g / hm 2 ; at the initial flowering stage of soybean, uniconazole is sprayed on the whole field at a spraying amount of 750 g / hm 2 ; S3. Field management until harvest; The water-soluble solution of the component of the malene and the ethephon is in the ratio of 3%:27%: (0-2%) of malene:ethephon:auxiliary, and the solvent is water.

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