畑地かんがい栽培における雑草発生生態と防除 : 第4報雑草発生相に及ぼす土壌水分の影響

概要

論文の詳細を見る
Emergence patterns of fourteen annual weeds on upland fields were investigated under the soil moisture levels of pF 1 8, pF 2.1 and pF 2.3. 1. Annual winter weeds emerged earlier and more under the highest soil moisture level than the lower. 2. Emergence patterns of Polygonum Blumei and Polygonum Persiccaria was little different among the three soil moisture levels, but the emerged numbers of them were more under the highest soil moisture level. 3. Digitaria adscendens and Mollugo stricta of annual summer weeds emerged earlier and more under the highest soil moisture level. The emerged numbers of Eleusine indica and Portulaca oleracea just after burying the seeds were more under the higher soil moisture level. Emergence patterns of Amaranthus viridis and Cyperus iria was little different among the three soil moisture levels, and the emerged numbers of them were more under the higher soil moisture level.
日本雑草学会の論文
1977-05-25