Research paper
Weeding effects of a newly developed tea-field weeder on inter-row and under-canopy areas of tea plantations
Researchers built a weeder attached to a riding tea harvester that mows both inter-row and under-canopy weeds. In trials it cut weed cover from 75% to 7%, and quarterly use kept weeds suppressed all season.
新たに開発した茶園用除草機による茶園うね間および樹冠下の除草効果
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About this paper
Key findings
- Inter-row weed weight fell 61.9% and under-canopy 94.2% immediately after treatment
- In an organic field, weed cover dropped from 75.0% to 7.0% right after mowing and stayed at 13.0% one month later
- Treating every 2 months (Mar/May/Jul/Sep) kept weed cover below 50% and max weed height under 15 cm
- Four treatments per season from first-flush to autumn-winter tea effectively suppressed weeds
Method: field trial of prototype weeder in tea plantations
Sample: 2 tea fields (research center + organic farm)
Journal: 茶業研究報告 (Tea Research Journal) — Japan Society of Tea Science
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