Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2021, Vol. 42 ›› Issue (10): 2890-2897.DOI: 10.3969/j.issn.1000-2561.2021.10.019

• Plant Cultivation, Physiology & Biochemistry • Previous Articles     Next Articles

Influence of Different Stake Layouts on Cassava Fresh Root Yield and Storage Root Configuration

WEI Yunxia1, LIU Lijuan1,2, HUANG Jie1,*(), WANG Juan1,2, LI Tian1,2, HE Fengguang3   

  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 & Rural Affairs, Haikou, Hainan 571101, China
    2. College of Tropical Crops, Hainan University, Haikou, Hainan 570228, China
    3. Agricultural Machinery Research Institute, Chinese Academy of Tropical Agricultural Sciences, Zhanjiang, Guangdong 524091, China
  • Received:2020-09-23 Revised:2021-01-12 Online:2021-10-25 Published:2021-11-25
  • Contact: HUANG Jie

Abstract:

The effects on the cassava fresh root yield (FRY), root character, storage root configuration (SRC) were studied to obtain the optimal mechanized planting mode and harvesting agronomic-machinery parameters for cassava. A field experiment with six stake layouts, i.e. horizontal-orthodromic-symmetrical (T1), horizontal-orthodromic-interlace (T2), horizontal-slant-symmetrical (T3), horizontal-slant-interlace (T4), inclined-reverse-symmetrical (T5), inclined- reverse-interlace (T6) was conducted. Variety ‘NZ199’, which was widely cultivated across the South China and appropriate for mechanization, was used as the test material, adopted wide-narrow row (1.0 m+0.6 m) planting model on the flat field. The inclined model was helpful to increasing FRY than horizontal. The FRY of T6 and T1 was higher than that of others, up to 41.92-50.11, 38.55-48.42 t/hm2, respectively. The average half width across row of T6 and T1 SRC was narrower than others, only 22.92-24.09 cm. When the harvesting half width across row per plant was 30.0 cm and the harvesting depth was 25.0 cm, the fresh storage root weight proportion and their fresh root weight of T6 and T1 were higher than that of others, up to 97.54%-98.87%, 38.12-40.87 t/hm2, respectively. Comprehensive analysis, T6 and T1 were recommended within the wide-narrow row mechanized model on flat field, meanwhile, the parameter of 120.0 cm harvesting width and 25.0 cm depth were suggested for the double rows harvesting machine among narrow rows, then 98% of the FRY could be harvested.

Key words: cassava, stake layout, fesh root yield, storage root configuration, agronomic-machinery parameters

CLC Number: