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A weeding method for machine-transplanted rice fields

A technology of paddy field and herbicide, applied in the field of weeding, can solve the problems of poor sealing weeding effect, great influence of human factors, low safety, etc., and achieves good ductility and continuous weed control ability, good sealing effect and less dosage. Effect

Active Publication Date: 2021-03-16
江苏省苏科农化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a new machine-inserting method for a series of problems such as poor closed weeding effect, low safety, relatively high cost, and relatively large influence of human factors that exist in the traditional "two seals and one repair" measure. "One seal and one fill" weeding method in paddy fields to improve weeding efficiency and reduce labor costs

Method used

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  • A weeding method for machine-transplanted rice fields
  • A weeding method for machine-transplanted rice fields
  • A weeding method for machine-transplanted rice fields

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Embodiment 1 The preparation of closed herbicide

[0029] Recipe 1

[0030] Contains 2000ml of 30% pretilachlor-benzsulfuron-methyl sustained-release oil suspension concentrate (Jiangsu Suke Agrochemical Co., Ltd.), mixed with 150kg of water, and stirred evenly.

[0031] The preparation method of the safe antidote of the matching dosage per hectare is as follows: Add protoxamidine and amino acid to the solution of 300 milliliters, prepare the dosage form oil suspension concentrate (Jiangsu Suke Agrochemical Co., Ltd.), in the safe antidote, The mass percentage of clofenac is 10%, and the mass percentage of amino acid is 10%.

[0032] Recipe 2

[0033] The closed herbicide used per hectare contains: 3000 ml of 30% pretilachlor-benzsulfuron-methyl sustained-release oil suspension, mixed with 150 kg of water, and stirred evenly.

[0034] The preparation method of the safe antidote corresponding to the amount per hectare is as follows: Add cloxacid and amino acid to 450 ...

Embodiment 2

[0036] Embodiment 2 Synchronous spraying comparative test

[0037] The comparison experiment was carried out at the same experimental base in Nanzha Town, Huai'an District, Huai'an City.

[0038] Control group 1 uses 1800 ml of blocked herbicide per hectare with 50% pretilachlor (Refit) emulsifiable concentrate. 3 days before rice machine transplanting and 7 days after rice transplanting, seal weeding was carried out twice.

[0039] At the same time, clean water treatment without chemicals was set as blank control group 1.

[0040] The three experimental groups were weeded synchronously on the day of machine transplantation.

[0041] When the experimental group was transplanting rice seedlings, spray herbicides and safe antidotes synchronously. After spraying, water and keep a shallow water layer of 2-3 centimeters deep for 3-5 days; in the present embodiment, the method of synchronous spraying is: Use a rice transplanter produced by Japan’s Kubota (model: NSPU-68C), and in...

Embodiment 3

[0048] Example 3 Comparative experiment on the effect of artificial stem and leaf herbicide supplementation on the plots with a lot of barnyard grass

[0049] Recipe 3

[0050] The occlusive herbicide used per hectare contains: 1200 ml of 25% "Penoxsulam" oil suspension concentrate (manufactured by Dow AgroSciences, USA), mixed with 225 kg of water, and stirred evenly.

[0051] Recipe 4

[0052] The stem and leaf herbicide used per hectare contains: 1500ml of 25% "Penoxsulam" oil suspension concentrate, mixed with 225kg of water, and stirred evenly.

[0053] Control group 2

[0054] The stem and leaf herbicide used per hectare contains: 600 grams of 50% "quinclorac" wettable powder (produced by Zhejiang Tianyi Agrochemical Co., Ltd.), mixed with 225 kilograms of water, and stirred evenly.

[0055] The comparison experiment was carried out at the same experimental base in Nanzha Town, Huai'an District, Huai'an City.

[0056] This embodiment is aimed at the comparison of the...

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Abstract

The invention discloses a weeding method of a machine-transplanted rice field. The method includes the steps of one-time closed weeding and one-time stem and leaf herbicide complementary treatment. Inthe one-time sealed weeding step, during rice seedling transplanting, a closed herbicide and a safe detoxicant are sprayed synchronously, ice is poured in water, and the water surface is kept 2-3 cmhigher than the soil surface layer for 3-5 days. In the one-time stem and leaf herbicide complementary treatment step, in the four-five-leaf period of rice, the herbicide is manually sprayed. By meansof the synchronous spraying method, the mechanization rate of rice field herbicide application can be increased, labor and cost are saved, work efficiency is high, the herbicide soil layer is stableafter herbicide application, the weed closing effect is good, the continuous weed control capacity is achieved, the phytotoxicity of the herbicide to rice seedlings can be reduced, rice growth is promoted, surface source pollution is reduced, and the environment protection of a farmland ecological system is facilitated.

Description

technical field [0001] The invention relates to a weeding method, in particular to a "sealing and replenishing" weeding method for machine-transplanted rice fields, and belongs to the field of agricultural technology. Background technique [0002] Rice is the food crop with the largest planting area and the largest output in my country. Safe production is the most important thing in rice cultivation. In recent years, with the transfer of land, more and more land intensive planting, more and more areas of mechanical transplanting. In the process of rice machine transplanting, weeds are the most harmful to rice, such as resistant barnyardgrass, daughter, crabgrass, bermudagrass, and sagittarius, etc. If a single herbicide is used for a long time in the paddy field, it will be herbicide resistant Weeds are increasing every year. [0003] During the rice transplanting process, due to the height limit requirements of the transplanter, the rice seedlings are relatively small, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G22/22
CPCA01G13/00A01G22/22
Inventor 邱光李建伟明亮张自常孙竞虞虓峰张新凤孔成戴娟
Owner 江苏省苏科农化有限责任公司