@article{oai:repository.naro.go.jp:00001535,
 author = {片山, 勝之 and KATAYAMA, Katsuyuki and 皆川, 望 and MINAGAWA, Nozomu and 三浦, 憲蔵 and MIURA, Kenzo},
 journal = {中央農業総合研究センター研究報告, Bulletin of the National Agricultural Research Center},
 month = {Mar},
 note = {Solarization by using clear polyethylene film was investigated in upland Held in order to control weeds, targeting reduction of chemical herbicide. The laboratory experiment showed that 6 hours or more were needed to suppress the weed emergence at 55℃, although 48 hours or more were needed to suppress the weeds for complete suppression (Table 1). And 48 hours and more were needed at 50℃, while at least 168 hours were needed at 45℃. Field experiment was conducted at Yawara Experimental Field of National Agricultural Research Center in summer 1997 to 2001. Sufficient weed suppression was obtained by film mulching for 4 weeks in the same level as herbicide benthiocarb(s-p-chlorobenzy1-N, N-diethylthiolcarbamate)・prometryne(20kg/ha) at preemergence(Table 3), although the control of common purslane(Porturaca oleracea L.) was fluctuated between years (Table 5). These results could be explained by the cumulative hour of 55℃ or more at the soil surface(≦2cm, Table 2), where the most of weeds emerged. It is concluded that the solarization by clear polyethylene film is effective weed management technique in upland field, although after the solarization none-tillage will be required before crop sowing/transplanting.},
 pages = {81--87},
 title = {透明ポリエチレンフィルムの土壌表面被覆による太陽熱処理の雑草防除効果},
 volume = {3},
 year = {2003},
 yomi = {カタヤマ, カツユキ and ミナガワ, ノゾム and ミウラ, ケンゾウ}
}