Weeds are plants cultivation problems, especially rice and result in reduced productivity. Therefore, the study of rice weeds and thus has an important part in solving such problems. In this study were surveyed and collected weeds in rice field, Tambon Thap Yai Chiang. Amphoe Phrom phiram of Phitsanulok province, from August to October 2558 2558 found examples of all the weeds can have classification example 72 12 20 genera and type 3 subfamily 24 species. The number of the most common types are in the family Poaceae Cyperaceae, 6 secondary-type subfamily Papilionoideae Fabaceae subfamily found Wong WONG, Asteraceae type 3 subfamily 2 types found Phyllanthaceae Linderniaceae, and Rubiaceae Commelitaceae Malvaceae Plantaginaceae Onagraceae and Cucurbitaceae found Wong 1 species and 20 species, found that the reported benefits from herbs a 4 sided type consumed food type 1, type 4, and the animals never have reported benefits from 3 types.
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