Cereal Research Communications
Volume/Issue:
Volume 35: Issue 3
Optimisation of the weed sampling system from an economic point of view on wheat (Triticum aestivum) stubble
Authors:
L. Barkaszi Agricultural Economics Research Institute Department of Farm Analysis Zsil u. 3-5 H-1093 Budapest Hungary

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A. Arutyunjan Szent István University Institute for Farm Management and Organisation Páter Károly u. 1 H-2103 Gödöllő Hungary

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K. Takács-György Szent István University Institute for Farm Management and Organisation Páter Károly u. 1 H-2103 Gödöllő Hungary

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Pages:
1527–1537
Online Publication Date:
07 Aug 2007
Publication Date:
01 Sep 2007
Article Category:
Research Article
DOI:
https://doi.org/10.1556/crc.35.2007.3.17
Keywords:
weed coverage; relative frequency; optimisation of weed sampling
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It has been proved that because of the different past of the parcels regarding their soil, agronomical and technological parameters, weed sampling results may not be generalised. Therefore it is necessary to study those solutions how to determine on an acceptable confidence level a parcel’s weed infestation with optimised sampling techniques.For studying the question we have delimited on wheat stubble a total sample area of 36×54 metres (using it as reference) and divided it into 2×2 cells giving a total of 486 sample cells. Then we surveyed the weed infestation and GPS recorded the location of each cell.We have analysed the weed infestation data with mathematical and statistical methods comparing the results of cells with each other and with the total sample area. We found that in several cases of different sample cells weed infestation displayed a diverse picture. This way sampling of weeds is extremely difficult.We found close relation between relative frequency of weeds and sampling accuracy. Therefore sampling is reliable only for surveying the frequent weeds in a parcel, while more rarely found weeds (e.g. spots of perennials) are to be scouted only by means of going over the parcel and GPS recording them. Otherwise, in the case of a traditional sampling process, the number of sampling cells required for acceptable reliability is unnecessarily high.Consequently, it is necessary to further study the economic and cost efficiency aspects of the needed weed sample density from the point of view of reasonable sample density, accuracy and optimal yield.

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Cover Cereal Research Communications
Cereal Research Communications A Quarterly of the Cereal Research Non-Profit Ltd. Company
Print ISSN:
0133-3720
Online ISSN:
1788-9170

 

 

 

Cereal Research Communications
Language English
Size A4
Year of
Foundation		 1973
Volumes
per Year		 1
Issues
per Year		 4
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 0133-3720 (Print)
ISSN 1788-9170 (Online)

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