阅读说明：本技术 一种防治蓖麻田间杂草的方法 (Method for preventing and controlling field weeds of castor-oil plants ) 是由 冷廷瑞 刘伟 冷静文 刘婷婷 毕洪涛 李广 王辉 刘娜 宮世航 王立群 刘兴凤 于 2019-09-27 设计创作，主要内容包括：本发明公开了一种防治蓖麻田间杂草的方法,属于农田杂草防治技术领域。本发明公开的一种防治蓖麻田间杂草的方法,在蓖麻播种后出苗之前,用二甲戊灵和五氟磺草胺对蓖麻田进行土壤喷雾处理；在蓖麻播种以后7-10d,蓖麻出苗之前,用草甘膦对已出土的绿色植物进行喷雾处理。本发明提供的一种防治蓖麻田间杂草的方法,实现了蓖麻节本增效种植,具有显著的经济、社会和生态效益。(The invention discloses a method for preventing and controlling field weeds of castor-oil plants, and belongs to the technical field of field weed prevention and control. The invention discloses a method for preventing and controlling weeds in castor fields, which comprises the steps of carrying out soil spraying treatment on castor fields by using pendimethalin and penoxsulam before emergence of seedlings after castor seeds; spraying the unearthed green plants with glyphosate 7-10 days after the castor seeds and before the castor seedlings emerge. The method for preventing and controlling the field weeds of the castor-oil plants, provided by the invention, realizes cost-saving and synergistic planting of the castor-oil plants and has remarkable economic, social and ecological benefits.)

1. A method for controlling weeds in castor fields is characterized by comprising the following specific steps:

(1) before emergence of seedlings after castor sowing, 4L of 33 percent pendimethalin and 1L of 2.5 percent penoxsulam are added into 450L of water and evenly stirred, and soil spraying treatment is carried out on one hectare of castor fields;

(2) adding 2.5L of 41% glyphosate into 450L of water, stirring uniformly and spraying green plants for one hectare 7-10 days after castor sowing and before castor emergence.

2. The method for controlling weeds in a castor field according to claim 1, wherein the castor field comprises a castor full field and a non-cultivated land 2-3 m in the periphery of the castor full field.

Technical Field

The invention relates to the technical field of farmland weed control, in particular to a method for controlling field weeds of castor-oil plants.

Background

In the production process of local castor-oil plants in Jilin province, the prevention and control of field weeds are mostly finished by adopting a method of combining gramineous herbicides and artificial weeding, and the method is labor-consuming and time-consuming and increases the production cost. The herbicides available on the market for castor-oil plants can only kill gramineous weeds, but are not ideal for non-gramineous weeds. The existing castor field weed control method can not meet the requirement of large-area castor agricultural production; under the current castor cultivation conditions, castor producers are eager for effective prevention and control technology of castor field weeds.

Accordingly, it would be an urgent problem to those skilled in the art to provide a method for controlling weeds in castor fields.

Disclosure of Invention

In view of the above, the invention provides a method for preventing and controlling field weeds of castor-oil plants, which realizes cost-saving and synergistic planting of the castor-oil plants and has obvious economic, social and ecological benefits.

In order to achieve the purpose, the invention adopts the following technical scheme:

a method for preventing and controlling weeds in castor fields comprises the following specific steps:

(1) before emergence of seedlings after castor sowing, 4L of 33 percent pendimethalin and 1L of 2.5 percent penoxsulam are added into 450L of water and evenly stirred, and soil spraying treatment is carried out on one hectare of castor fields;

(2) 7-10 days after castor sowing, namely before castor emergence, if other green plants except castor appear in the field, 2.5L of 41 percent glyphosate is added into 450L of water and stirred uniformly, and the green plants which are unearthed in one hectare of castor field are sprayed once.

Further, the castor field comprises a castor whole field and non-cultivated land with the periphery of 2-3 m.

According to the technical scheme, compared with the prior art, the method for controlling weeds in the castor field is provided, the castor cultivation management and the generation rule of the weeds in the castor field are combined, and in the key period most beneficial to controlling the weeds, the herbicide is used for carrying out surface treatment on soil or carrying out stem and leaf treatment on weeds which come out of the soil before seedlings, so that the purpose of controlling the weeds in the castor field is achieved; the herbicide used in the pre-seedling stage after castor sowing is pendimethalin and penoxsulam, and the herbicide used in the pre-seedling stem leaf treatment is glyphosate; the quality of the weeding effect of the invention is also closely related to the cultivation management level of the castor-oil plant; the fine tillage and fine cropping, the timely sowing, the accurate and timely medication, the uniform and strong seedlings and the like are all important factors influencing the weed control effect. The method for preventing and controlling the field weeds of the castor-oil plants can solve the common problem of weed damage of the castor-oil plants in the cultivation and management process, can avoid manual weeding work in the cultivation and management process of the castor-oil plants, greatly reduces the production cost, saves the labor force and is suitable for mechanized cultivation and management; on the basis of deeply ploughing and finely raking the land to be planted with the castor beans before sowing, before emergence of seedlings of the castor beans, the whole field soil and the area 2-3 meters outside the field are treated by pendimethalin and penoxsulam, the whole field ridge sealing is carried out in the stage of coexistence of vegetative growth and reproductive growth of the castor beans, and weeds just unearthed or unearthed are controlled so that the growth and the yield of the castor beans cannot be damaged.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.