Quantitative weed monitoring method

A technology for weeds and weed seeds, which is applied in the field of crop cultivation management, can solve problems such as lack of clear data indicators, and achieve the effects of reducing planting costs, controlling the occurrence of weed damage, and reducing the number and amount of use

Active Publication Date: 2019-09-17
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to conduct rapid quantitative monitoring of weeds under the cultivation and farming modes of rice-wheat, rice-rape, rice-green manure, and rice-winter field, and to select comprehensive weed control strategies based on quantitative monitoring to quickly reduce the density of weeds , there is no specific technology related to reducing the frequency and amount of herbicide use
In particular, how to quickly judge the dominance level (damage level) of weeds based on indicators such as the abundance and coverage of weeds in the field, there is no clear data index as a basis

Method used

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Experimental program
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Effect test

Embodiment 1

[0044] Implementation time: 2016-2018.

[0045] Implementation location: Zhengyang Planting Professional Cooperative, Tuyuan Township, Sucheng District, Suqian, Jiangsu.

Embodiment approach

[0046] Implementation plan: the test site is a rice-wheat continuous cropping model, wheat is planted in winter, the wheat variety is "Huaimai 26", the sowing rate is 35kg / mu, rice is planted in summer, and the rice variety is "Lianjing No. 11", transplanted ( Machine-transplanted rice seedlings) with a row spacing of 30 cm, a plant spacing of 20 cm, and 5 seedlings per hole. Before the test implementation: the weeds in the test field were eliminated routinely. During the wheat planting period, "primary sealing + secondary stem and leaf", that is, use soil sealing herbicide and spray before the emergence of wheat after sowing; use stem and leaf herbicide spray treatment at the 3-leaf 1-heart stage of wheat; Before jointing, apply 1 stem and leaf treatment herbicide. During the rice planting period, the herbicide is used as "one seal, two kills, three supplements", that is, the closed herbicide is applied before the seedling of the rice after sowing, and the stem and leaf weed...

Embodiment 2

[0053] Implementation time: 2016-2018.

[0054] Implementation location: Xiajia Lake, Lingqiao Township, Huaiyin District, Huai'an City, Jiangsu Province.

[0055] Implementation plan: the test site is a rice-wheat continuous cropping model, wheat is planted in winter, the wheat variety is "Huaimai 26", the sowing rate is 35kg / mu, rice is planted in summer, and the rice variety is "Lianjing No. 11", transplanted ( Machine-transplanted rice seedlings) with a row spacing of 30 cm, a plant spacing of 20 cm, and 5 seedlings per hole. Before the test implementation: the weeds in the test field were eliminated routinely. During the wheat planting period, "one sealing + one stem and leaf" means that the soil sealing herbicide is used and sprayed after wheat sowing and before the emergence; at the stage of 3 leaves and 1 heart of wheat, the stem and leaf herbicide is sprayed. During the rice planting period, the herbicide is used as "one seal, two kills, three supplements", that is,...

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Abstract

The invention discloses a quantitative weed monitoring method. The quantitative weed monitoring method can be used for guiding the selection of weed prevention and control measures, belongs to the field of plant protection, and particularly relates to investigation of a soil seed bank before planting by utilizing a seedling stage four-level visual inspection method, a growth stage sampling method, a mature stage seven-level visual inspection method. The method can be used for rapidly and quantitatively monitoring the weeds in a farmland in different farming modes in the whole growth period, and implementing a targeted weed control strategy according to the quantitative indexes of the weeds in the farmland, so that the aim of continuously preventing and controlling the weeds is fulfilled. The occurrence rule and the occurrence dynamic of the weeds can be determined by continuous monitoring, the prevention and control measures of the weeds are reasonably implemented, the using times and the using amount of the herbicide are reduced, the occurrence of the weeds is effectively controlled, the planting cost is obviously reduced, and the environmental pollution is reduced.

Description

technical field [0001] The invention belongs to the technical field of crop cultivation management, and in particular relates to a quantitative monitoring method for weeds. Background technique [0002] Weeds are one of the most important factors leading to crop yield reduction. Weed control mainly depends on chemical herbicides. With the intensification and scale development of agricultural production in our country, this dependence will be aggravated. In rice-wheat (oil) continuous cropping areas, rice will use three herbicides of "one seal", "two kills" and "three supplements" for one season, and two herbicides of "one seal" and "two supplements" will be used for wheat or rapeseed. For secondary herbicide use, if the base of weeds is very high, "secondary supplementation" requires the use of herbicides for killing gramineous weeds and broad-leaved weeds respectively, up to 6 times in total. However, the long-term and large-scale application of chemical herbicides will le...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
CPCG01N33/0098A01G22/22G06Q50/02G06Q90/00
Inventor 强胜张峥
Owner NANJING AGRICULTURAL UNIVERSITY
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