Mục đích của bài viết nhằm đánh giá tác động của các chế độ cạo nhịp độ thấp đến năng suất mủ, năng suất lao động cạo mủ và các chỉ tiêu liên quan đến năng suất mủ, từ đó góp phần xác định chế độ cạo phù hợp trong điều kiện thiếu hụt lao động cạo mủ. Mời các bạn cùng tham khảo! | 20 Trường Đại học Nông Lâm TP. Hồ Chí Minh Effect of low-frequency tapping systems d5 d6 on latex yield labor productivity and latex physiological parameters on RRIV 106 clone Hai V. Truong Nang Nguyen amp Minh H. A. Bui Physiology Latex Harvesting Department Rubber Research Institute of Vietnam Ho Chi Minh City Vietnam ARTICLE INFO ABSTRACT Research Paper The tapping labor shortage has been identified as a major issue for natural rubber companies in Vietnam. This study aimed to Received June 24 2020 determine a suitable tapping system to adapt to the labor short- Revised September 16 2020 age. The experiment was conducted on RRIV 106 clone at Dong Accepted October 18 2020 Phu rubber company Binh Phuoc province Vietnam in two the tapping years 2018 and 2019. The results showed that the treat- ments of low-frequency tapping systems d5 d6 increased indi- vidual yield per tree per tapping g t t compared with that of Keywords d4. The g t t of treatments d5 and d6 with latex stimulant ET applied by 6 to 10 times per year d5 y d5 y d6 y d6 y was 23 27 45 and 47 higher than Latex physiological that of the control d4 y respectively. Labor productivity Low frequency tapping systems LFT kg task day of low-frequency tapping systems increased simi- RRIV 106 larly to g t t. The tapper requirements of low tapping frequency Tapper shortage d5 and d6 were 20 and 33 lower than that of d4 respec- tively. Land productivity per year kg ha year of low-frequency tapping systems d5 and d6 was equivalent 98 to 101 as Corresponding author compared with that of the control. The effects of tapping sys- tems on latex physiological parameters tapping panel dryness Truong Hai Van rate TPD and dry rubber content DRC were not signifi- Email cantly different. Cited as Truong H. V. Nguyen N. amp Bui M. H. A. 2020 . Effect of low-frequency tapping systems d5 d6 on latex yield labor productivity and latex physiological parameters on RRIV 106 .
