夏期雜草の量的分解に關する研究 : (第1報) 關東及その周邊地帶に於ける一般的調査
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概要
- 論文の詳細を見る
Summary Summer weeds in the field of Kanto and its neighboring region were generally surveyed in 1946〜1948. In this districts summer weeds was found to have 91 kinds of weeds. The results ot researches are summarized as follows ; Name of weeds Percentage of weight Digitaria ciliaris pers. 40.5 Portulaca oleracea L. 10.9 Cyperus spp. 9.7 Mallugo stricta L. 5.7 Amaranthus blitum L. 2.9 Equisetum arvense L. 2.5 Polygonum nodosumpers 2.1 Acalypha australis L. 2.1 Panicum crusgalli L. 1.7 var. submutica Mey Other 82 weeds 21.9 Digitaria ciliaris pers may be from this table assumed absolutely predominant in this districts in the summer season.
- 日本作物学会の論文
- 1950-08-30