Diversity and Utilization of Weeds in Organic Paddy Fields and Chemical Paddy Fields in Saline Soil Area, Prathai District, Nakhon Ratchasima Province

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Phutsadee Phromprasit
Jutamas Deesui
Punnarod Kingkrathok

Abstract

This research aimed to study the diversity of weeds in organic and chemical paddy fields in saline soil area, Prathai district, Nakhon Ratchasima province. This study was carried out between July and December 2022. Samples were collected from 2 organic paddy field sampling areas and 1 chemical paddy field sampling area. Ten families, 33 genera and 42 species of weeds were found. Forty-two species were found in the organic paddy fields and 10 species were found in the chemical paddy fields. The most abundant family was Poaceae in which 12 genera and 13 species were found. The second most abundant family was Cyperaceae in which 4 genera and 10 species were found. The least abundant families were Apocynaceae, Convolvulaceae, Hydrocharitaceae and Nymphaeaceae. Only one species in each of these families was found. The similarity index between weeds found in the organic paddy fields and the chemical paddy fields was 38.46%. The utilization of weeds by local residents was divided into 3 types which were 1) used as edible plants (7%) including Fabaceae and Convolvulaceae, 2) used as tools and textiles (10%) including Cyperaceae and 3) used in religious ceremonies (2%) including Asclepiadaceae. The information from this research is a guideline for weed utilization or appropriate management of weeds in the community.

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