除草剤の林業的応用(第 1 報) : 除草剤の林木及び雑草種子の発芽に及ぼす影響について

概要

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The present paper deals with observations on the influence of Nitto Herbicide, which exerts for germination of trees and weeds. The results are summarized as follows : 1. Germination was tested on the soil in flower-pots, which were set in the thermostat of 25℃. 2. The principal components of this herbicide consist of NH_2・SO_2ONH_4 and NH・(SO_2・ONH_4)_2. Concentration of herbicide were tested in three classes : 30,60 and 120gr. per 3.306m^2; and in each concentration's section, were established four sections, by means of periods from herbicide treatment to seeding : 3,2 and a week, with the same day. 3. Plant seeds of the materials are as follows : (1) Pinus Thunber gii PARL. (2) Amorpha fruticosa LINN. (3) Rumex longifolius DC. (4) Erigeron bonariensis LINN. 4. The effects of herbicide concenatrations are shown in Fig. 2-A and Fig. 2-B. 5. The effects exerted for germination of period, from herbicide treatment to seeding are known in Fig. 2-C.
京都府立大学の論文
1955-09-01