行政院農業委員會台南區農業改良場  研究彙報第43號

應用農用紙蓆防除水田雜草之研究

蔣汝國

摘  要

蔣汝國。2004。應用農用紙蓆防除水田雜草之研究。台南區農業改良場研究彙報43:39~46。

本試驗在嘉義分場有機栽培田進行,每公頃肥料用量為3200公斤菜籽粕。試驗處理分為覆蓋農用紙蓆及無覆蓋(對照),來探討覆蓋農用紙蓆對雜草之防除效果及對水稻產量、米質之影響。試驗結果90、91年兩年平均之公頃產量,一期作覆蓋紙蓆區為5412公斤,對照區5309公斤;二期作覆蓋紙蓆區為4103公斤,對照區為3417公斤。對照區一期作於插秧後40天人工除草,除草工每公頃需28工;二期作於插秧後30天人工除草,除草工每公頃需30工(90年)及75工(91年);覆蓋紙蓆區不需人工除草。各年期各處理區之白米,經試吃結果,以覆蓋紙蓆區的白米被認為口味較佳。

關鍵詞:水稻、有機栽培、雜草防除、紙蓆。

接受日期:2004年1月7日


Control of the Paddy Field Weeds by Mulching paper

Chiang J.K.

Summary

The experiment was carried out in the paddy field of Chia-Yi branch of TNDARES to investigate the effects of mulching paper on weeds of organic culture rice. Rapeseed cake of 3200 kg/ha (160 kg/ha of nitrogen) was applied in this experiment. In the 1st crop, the yield (average of 2001 and 2002) of mulching treatment was 5412 kg/ha, while the untreated control (no mulching) was 5309 kg/ha. In the 2nd crop, grain yield were 4103 kg/ha and 3417 kg/ha for mulched and non-mulched treatment, respectively. Hand weed was carried out at 40 days (1st crop) or 30 days (2nd crop) after transplanting for non-mulched treatment. Labor needed for manual weeding one hectare was equivalent to 28 labor-days for the 1st crop, and up to 75 labor-days for 2nd crop. While in the mulching block, no hand weed was needed. Taste panel evaluation indicated that rice obtained from mulching treatment was better than that derived from non-mulched check.

Key words: Rice, Organic culture, Weeds control, Mulching paper.

Accepted for publication:7 January, 2004



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