CN113455305A

CN113455305A - Method for preventing and controlling field weeds of epimedium herb

Info

Publication number: CN113455305A
Application number: CN202110784018.5A
Authority: CN
Inventors: 董学会; 陈怡�; 郝丹丹; 向秋燕
Original assignee: China Agricultural University
Current assignee: China Agricultural University
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-10-01

Abstract

The invention discloses a method for preventing and controlling epimedium field weeds, belonging to the technical field of agricultural weeding. The method specifically comprises the following steps: (1) firstly, screening out a herbicide which can effectively prevent and remove the epimedium weeds and is relatively safe to the epimedium and suitable for being used in field production of the epimedium, wherein the herbicide in the field of the epimedium is selected from mesotrione; (2) before the emergence of the seedlings of the epimedium, applying the pesticide to seal the soil; (3) after the epimedium seedlings emerge, carrying out stem leaf spraying treatment by adopting an epimedium field herbicide, wherein the dosage of the herbicide is 100 plus 150 mL/mu, and carrying out epimedium field weed spraying after diluting with 25L/mu of water. By spraying the mesotrione, the invention has obvious effect of preventing and treating main field weeds, namely the field Cirsium setosum, and is relatively safe to the field Epimedium.

Description

Method for preventing and controlling field weeds of epimedium herb

Technical Field

The invention belongs to the technical field of agricultural weeding, and particularly relates to a method for preventing and controlling field weeds of epimedium herb.

Background

The medicinal value of Epimedium (Epimedium brevicornum Maxim.) in the aspects of resisting cancer, enhancing immunity, resisting aging and the like is continuously discovered, the demand of the market on Epimedium resources is greatly increased, the wild Epimedium resources are seriously damaged, and the cultivation of Epimedium seed seedlings has important significance for the protection of the wild Epimedium resources and the guarantee of the quality of medicinal materials. In production, herba epimedii is often associated with field weed field thistle, the field weed field thistle grows fast and has high density along with the rising of air temperature and the increase of rainwater, and the growth of herba epimedii is obviously inhibited, so that the later-period yield and quality are obviously reduced, and effective weed control is very important for improving the yield and quality of herba epimedii. The epimedium seedlings grow slowly, and only 1-5 leaves are newly grown every year on average, so that timely weeding can prevent weeds from generating competitive effect on the growth of the epimedium seedlings. The weeding method comprises two methods of chemical agent and artificial weeding, and a method of combining the artificial weeding and the soil barrier herbicide can be adopted before emergence of seedlings. After emergence of seedlings, an approach of only adopting artificial weeding is recommended, and at present, no research is carried out on herbicide selection of epimedium, and the abuse of the herbicide can cause seedling growth limitation and reduction of medicinal value. A method suitable for controlling epimedium field weeds is urgently needed.

Disclosure of Invention

The invention aims to provide a method for controlling epimedium field weeds, which is characterized by comprising the following steps:

1. firstly, screening out a herbicide which can effectively prevent and remove epimedium weeds and is relatively safe to epimedium and suitable for field production of the epimedium, wherein the herbicide in the epimedium field is selected from mesotrione;

2. before the emergence of the epimedium, applying the pesticide to seal the soil;

3. after the epimedium seedlings emerge, stem and leaf spraying treatment is carried out by adopting the epimedium field herbicide, the dosage of the herbicide is 100-150 mL/mu, and the epimedium field weed spraying is carried out after the dilution with 25L/mu of water.

Compared with the prior art, the invention has the following beneficial effects:

by spraying the mesotrione, the invention has obvious effect of preventing and treating main field weeds, namely the field Cirsium setosum, and is relatively safe to the field Epimedium.

Drawings

FIG. 1 is a dynamic change of the effect of herbicides on Epimedium seedling growth, comprising: FIG. 1-1 haloxyfop-R-methyl; FIG. 1-2 rimsulfuron; figures 1-3 nicosulfuron (xinglong brand); FIGS. 1-4 mebendazole nicotinic acid; FIGS. 1-5 pendimethalin; FIGS. 1-6 quizalofop-p-ethyl; FIGS. 1-7 Atrazine; figures 1-8 nicosulfuron (yuhouqing brand); FIGS. 1-9 bentazone; figures 1-10 mesotrione.

FIG. 2 the effect of different herbicides on Epimedium seedling growth.

Detailed Description

The invention provides a method for preventing and controlling epimedium field weeds, which specifically comprises the following steps:

The present invention will be described in detail with reference to specific embodiments, which are carried out under conventional conditions, and the sources of the experimental materials which are not mentioned are commercially available.

In order to screen out the herbicide suitable for field production of epimedium, 10 herbicides were tested on epimedium seedlings, and the names and dosages of the herbicides are shown in table 1. Experiments test the dynamic change of the effect of the herbicide on the growth of epimedium seedlings as shown in figure 1, which comprises the following steps: FIG. 1-1 haloxyfop-R-methyl; FIG. 1-2 rimsulfuron; figures 1-3 nicosulfuron (xinglong brand); FIGS. 1-4 mebendazole nicotinic acid; FIGS. 1-5 pendimethalin; FIGS. 1-6 quizalofop-p-ethyl; FIGS. 1-7 Atrazine; figures 1-8 nicosulfuron (yuhouqing brand); FIGS. 1-9 bentazone; figures 1-10 mesotrione.

All epimedium seedlings were dead or nearly dead at the end of the test under treatments No. 3, No. 4, No. 7 and No. 9, whereas the normal seedling content was less than 33% under treatments No. 2 and No. 8, the treatments with higher normal growth rates of seedlings being No. 1, No. 5, No. 6 and No. 10, respectively. The dynamic change of the growth of the epimedium seedlings treated by each herbicide can be analyzed, so that the influence of the herbicide on the growth of the seedlings can be further understood. The other herbicides except No. 5 and No. 10 all showed abnormal growth of seedlings after 7 days of spraying, and abnormal growth of seedlings died on day 21. The growth of seedlings was better with treatments No. 1, 5, 6 and 10 (as shown in FIG. 2). Considering that pendimethalin No. 5 is a soil spray, it is difficult to apply in production and thus only No. 1, No. 6 and No. 10 were tested in the next weed test. The major weed field, namely field thistle, in herba epimedii production is tested by using the

herbicides

1, 6 and 10 respectively, and the result shows that the mesotrione 10 can whiten young leaves of the field thistle to block the growth of the field thistle, and the

herbicides

1 and 6 have no influence on the growth of the field thistle basically.

TABLE 1 herbicide names and dosages

Claims

1. A method for controlling epimedium field weeds is characterized by comprising the following steps:

(1) firstly, screening out a herbicide which can effectively prevent and remove the epimedium weeds and is relatively safe to the epimedium and suitable for being used in field production of the epimedium, wherein the herbicide in the field of the epimedium is selected from mesotrione;

(2) before the emergence of the seedlings of the epimedium, applying the pesticide to seal the soil;

(3) after the epimedium seedlings emerge, carrying out stem leaf spraying treatment by adopting an epimedium field herbicide, wherein the dosage of the herbicide is 100 plus 150 mL/mu, and carrying out epimedium field weed spraying after diluting with 25L/mu of water.