Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2019, Vol. 40 ›› Issue (10): 2029-2033.DOI: 10.3969/j.issn.1000-2561.2019.10.016

• Crop Culture and Nutrition, Genetic Breeding • Previous Articles     Next Articles

Storage Root Configuration of Cassava and the Influence for Mechanical Harvesting

SU Bimeng1,2,WANG Juan1,2,HUANG Jie1,*(),WEI Yunxia1,DENG Ganran3,HE Fengguang3,YU Changde4,CHEN Chen1,2,LIU Zhi1,2   

  1. 1. Tropical Crops Genetic Resources Institute, Chinese Academy of Tropical Agricultural Sciences / Key Laboratory of Conservation and Utilization of Cassava Genetic Resources, Ministry of Agriculture and Rural Affairs, Danzhou, Hainan 571737, China
    2. Institute of Tropical Agriculture and Forestry, Hainan University, Haikou, Hainan 570228, China
    3. Agricultural Machinery Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
    4. Guangdong Biological Energy Co., Ltd., Zhanjiang, Guangdong 524018, China
  • Received:2019-02-26 Revised:2019-05-12 Online:2019-10-25 Published:2019-11-04
  • Contact: HUANG Jie

Abstract:

The storage root configuration (SRC), which is the spatial distribution characteristics of cassava storage root under soil, will directly affect the mechanical harvesting effect. The SRC of 3 cassava varieties, South China 205 (SC205), Nanzhi 199 (NZ199) and Xinxuan 048 (XX048) was studied to find out the appropriate varieties and technological parameters for mechanical harvesting. The SRC of SC205 and NZ199 were good for mechanical harvesting. The best half harvesting width per plant and best harvesting depth for SC205 also NZ199 was 0.0-35.0 cm and 0.0-25.0 cm respectively. Under the condition, the harvesting rate of storage root number and weight of SC205 was 100.0%, and that of NZ199 was above 96.0%. It is recommended that the half width per plant and harvesting depth is 35.0 cm and is 25.0 cm correspondingly for the mechanical harvesting of cassava.

Key words: cassava, storage root configuration, mechanical harvesting, half width per plant, harvesting depth