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Compound Seed Coating Agent for Controlling Corn Sheath Blight

A composite, corn technology, applied in the fields of pest control, biocides, fungicides, etc., can solve the problems of increased disease resistance, great harm, and specific functions, and achieves promotion of seed germination, uniform coating, and environmental safety. Effect

Active Publication Date: 2018-02-09
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, in the prevention and control of corn soil-borne diseases, chemical seed coating agents are mainly used for seed coating, such as carbendazim, thiram, triadimenol, etc. The active ingredient content of fungicides is as high as 20%, which is easy to cause poisoning of humans, animals and crops , more harmful
At the same time, most of these seed coating agents have some problems, such as specific functions, narrow application range, affecting seed germination rate, high toxicity, backward production technology, single active ingredient, and enhanced disease resistance, etc., which have affected the use of corn seed coating agents in my country. promotional use of

Method used

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  • Compound Seed Coating Agent for Controlling Corn Sheath Blight
  • Compound Seed Coating Agent for Controlling Corn Sheath Blight
  • Compound Seed Coating Agent for Controlling Corn Sheath Blight

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～4

[0030] Embodiments 1-4 relate to the compound seed coating agent for preventing and treating corn sheath blight, the components and contents included are as shown in Table 1, and each component is mixed according to the dosage ratio to make a compound seed coating agent:

[0031] The component of table 1 compound seed coating agent and its weight percent content (%)

[0032]

[0033] The seed coatings formulated in Examples 1 to 4 are suspension-type seed coatings, and the appearance is a rose red flowable viscous liquid. There may be a small amount of precipitation or layering during storage, but it can be restored to its original state after being shaken at room temperature. , there will be no agglomeration. The product quality meets the various indicators required by the seed coating preparation specification: pH value 6.0-8.0, suspension rate ≥ 90%, sieve rate ≥ 98%, viscosity ≤ 0.06Pa s (25 ℃), shedding rate ≤ 5% , film-forming properties and low temperature, heat sto...

Embodiment 5

[0035] Example 5 seed coating agent potted seedling emergence rate test after corn seed coating

[0036] This example investigates the seedling emergence rate of potted plants after coating corn seeds with coating agents 1 to 4 in Examples.

[0037]The test was carried out in the greenhouse of the College of Agriculture and Biology, Shanghai Jiaotong University. In order to count the emergence rate of the coated seeds and check its safety, the corn seeds of 2 different varieties (Wanghe No. 8, No. Limin 33, purchased from the seed company) coating test, with this suspension seed coating agent (i.e. the compound seed coating agent XDS of embodiment 4) and seed are coated with the ratio of mass ratio 1:50, and respectively to 2 kinds of corn coated seeds have carried out the test of inhibiting Rhizoctonia solani, with single component treatment as control 1-6 (contrast 1-6 only contains phoxim, chlorpyrifos, Jinggangmycin, film-forming agent, trace element, growth aid; each s...

Embodiment 6

[0047] Embodiment 6, field disease control test 1 after seed coating agent is coated on corn seed

[0048] The test was carried out at the original cotton seed field of Miaotou Town, Shuyang City, Jiangsu Province. The tested variety was Suyu 20, a local corn variety. According to the technical requirements, the seed coating agent was evenly coated on the surface of the seeds, and the seeds were sown after natural drying.

[0049] Test treatment: (1) XDS seed coating (Example 4); (2) CK control (water). The test sowing density is 4500 plants / mu, the row spacing is 0.5m, the row length is 5m, the hole spacing is 29.6cm, 2 seeds are sown in each hole, 28 rows are sown in each plot, and the area of ​​the plot is 70m 2 , each treatment was repeated three times, arranged randomly, and protective rows were set up around the experimental field. The results are shown in Table 5.

[0050] Maize sheath blight grading standard:

[0051] Grade 0: The whole plant is asymptomatic;

[...

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Abstract

The invention discloses a compound seed coating agent for preventing and treating corn sheath blight; the compound seed coating agent comprises the following components in weight percent: phoxim 0.05-1%, chlorpyrifos 0.1-1%, Jinggang Mycin 0.01-0.1%, film-forming agent 5-15%, trace element 0.01-0.1%, growth aid 0.01-0.1%, water 83-94%. The beneficial effects of the present invention are: the seed coating agent of the present invention has the characteristics of convenient preparation, uniform coating, low shedding rate, high efficiency and low toxicity, relatively safe to the environment, etc., and has good protection against soil-borne diseases such as corn sheath blight. effect.

Description

technical field [0001] The invention relates to a compound seed coating agent, in particular to a compound seed coating agent for preventing and treating corn sheath blight. Background technique [0002] Corn is one of the main food crops in my country, and it is also a very important feed crop. The serious occurrence of soil-borne diseases is the main factor restricting the production of corn, which not only causes great economic losses to the corn planting industry, but also affects the breeding industry. have a greater impact. [0003] Soil-borne diseases mainly refer to those diseases caused by pathogens whose primary infection source comes from the soil and whose propagators can survive for a long time. They usually infect the roots and cause root diseases or even whole-plant diseases of crops. There are four main soil-borne diseases in the corn producing areas in my country, namely stem rot, head smut, sheath blight and take-all. Since the early 1970s, when the joint ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01N61/00A01N59/16A01N59/20A01N57/16A01P21/00A01P3/00A01N57/14A01N43/16
Inventor 陈捷余嘉余传金李雅乾吴琼王猛孙佳楠高金欣窦恺元旭张泰龙倪璇张婧迪
Owner SHANGHAI JIAO TONG UNIV
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