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Method for removing weeds in the field of crops

A technology for crops and fields, applied in the field of crop protection, can solve the problems of decreased weeding effect, difficult recovery, damage to mulch film, etc., and achieve the effects of reducing the dosage of herbicides, convenient laying and storage, and reducing artificial input.

Active Publication Date: 2013-03-20
BEIJING PLANT PROTECTION STATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Physical weeding methods such as white plastic mulch and black plastic mulch have the disadvantages that the mulch is easily damaged, the weeding effect is reduced due to damage, the laying process is complicated, it requires a lot of labor, and it is not easy to recycle. After the growing season, the mulch has been damaged and cannot be used. A large amount of damaged plastic film remains in the field, resulting in environmental "white" pollution and other defects

Method used

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  • Method for removing weeds in the field of crops
  • Method for removing weeds in the field of crops
  • Method for removing weeds in the field of crops

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The selection of embodiment 1 weeding ground cloth and the establishment of weeding method

[0047] Year 2008. Polyester chips are used as raw materials, and the material is polyester filament spunbond hot-rolled non-woven fabric (PET) obtained through anti-stick filament hot rolling, and the weeding cloth with 100% polyester is the weeding cloth. In this embodiment, the floor fabrics A, B, and C are all polyester filament spunbond hot-rolled nonwoven fabrics with different specifications and parameters, all purchased from Yaolong Spunbond Technology Co., Ltd., Shaoxing City, Zhejiang Province.

[0048] A ground cloth specifications: Weight: 20g / m 2 ; Longitudinal tensile strength: 46N / 50cm; longitudinal elongation: 15%; transverse tensile strength: 17N / 50cm;

[0049] B ground cloth specifications: Weight: 40g / m 2 ; Longitudinal tensile strength: 94N / 50cm; Longitudinal elongation: 20%; Transverse tensile strength: 49N / 50cm; Longitudinal elongation: 25%;

[0050] C g...

Embodiment 2

[0057] Embodiment 2 Application and effect of the method of the present invention (1) (cabbage and broccoli planted in the open air)

[0058] Test time: 2009.

[0059] 1. Grass control effect

[0060] Cabbage and broccoli planted in the open field adopt 5 kinds of weeding methods, which are respectively: covering white plastic film; covering black plastic film (purchased in Beijing Shunyi Agricultural Materials Market); weeding ground cloth (B ground cloth in embodiment 1, according to the embodiment 1 recorded method for laying and planting); artificial weeding; chemical weeding, the kind is 48% trifluralin emulsifiable concentrate, the dosage is 150 milliliters per 667 square meters, and the method is to spray the water evenly before the weeds emerge after planting, and apply the pesticide Mix the soil immediately afterwards. After the planting period ends, after harvesting vegetables (cabbage and broccoli), the weeding effect shows: in the cabbage planting area, the weeds...

Embodiment 3

[0073] Embodiment 3 Application and effect of the method of the present invention (2) (applied to lettuce in the greenhouse)

[0074] Test time: 2010.

[0075] Use the weeding ground cloth on the lettuce for stems in the greenhouse, and the two groups of treatments are respectively: cover the weeding ground cloth (using the B ground cloth of embodiment 1); cover with black plastic film, the planting period ends, harvest the lettuce for stems, and measure the plant height, The results showed that the average plant height of lettuce treated with weeding cloth increased by 29.7% and the weight increased by 19.8% compared with that of lettuce treated with black plastic film (purchased from the agricultural materials market), indicating that weeding cloth has a better growth effect. See Figure 4 .

[0076] Table 4 Survey of plant height and yield indicators

[0077]

[0078] Note: The data in the table is the average value of 30 samples.

[0079] Experiments have proved tha...

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Abstract

The invention provides a method for removing weeds in the field of crops. Dacron filament spun-bonded hot rolling non-woven fabrics are regarded as weeding ground fabrics and are covered and fixed on the surface of the field. Openings are reserved for crop seeds in accordance with fix planting intervals. The openings are sealed by soil after the crop seeds are planted on the ground fabric openings. Growth of the weeds in the field of crops is effectively controlled in crop planting period. Weeding rate is up to 100%. The method for removing the weeds in the field of crops is of being low in cost, convenient to operate, free from pollution to the environment and side effects towards the growth of the crops. Crop output is effectively promoted which are suitable for popularization and use.

Description

technical field [0001] The invention relates to the field of crop protection, in particular to a method for removing weeds in crop fields. Background technique [0002] Weeds are a major biological disaster in agricultural production. According to the statistics of relevant departments, there are about 1.5 billion mu of arable land in the country, and more than 300 million mu of arable land suffer serious weed damage every year. Due to weeds, the country's annual production of more than 17 million tons of grain and 250,000 tons of cotton is reduced, and 5 to 6 billion man-days of labor are consumed for weeding. The main reasons for the serious consequences are as follows: ① Weeds compete with crops for nutrients, water and sunlight. During the competition between weeds and crops, crops are deprived of a large amount of water, fertilizer and sunlight. Weeds have stronger viability and more developed root systems than crops, so their ability to absorb water, fertilizer and nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G13/02
Inventor 郭喜红岳瑾乔岩尹哲董杰车晋滇
Owner BEIJING PLANT PROTECTION STATION