Welcome to Chinese Journal of Tropical Crops,

Chinese Journal of Tropical Crops ›› 2020, Vol. 41 ›› Issue (5): 845-850.DOI: 10.3969/j.issn.1000-2561.2020.05.001

• Crop Culture and Nutrition, Genetic Breeding •     Next Articles

Variation among Sugarcane Varieties in Nutrient Uptake and Utilization under Mechanized Production

WEI Dongping1,WEI Jianfeng1,*(),LIANG Zhenhua2,WEI Qiaoyun2,HU Guijuan1   

  1. 1. Lushan College of Guangxi University of Science and Technology, Liuzhou, Guangxi 545616, China
    2. Guangxi South Subtropical Agricultural Science Research Institute, Longzhou, Guangxi 532415, China
  • Received:2019-04-01 Revised:2019-09-13 Online:2020-05-25 Published:2020-06-15
  • Contact: WEI Jianfeng


From the viewpoint of efficient production, a field experiment was conducted to investigate the dry matter accumulation, nutrient accumulation and utilization of four sugarcane varieties, including plant cane and first ratoon under mechanization. The stalk dry matter accumulation and total dry matter accumulation of ‘Guitang 42’ were the highest, which was more than that of the other varieties for 819.66-4273.69 kg/hm 2 and 1232.14-5863.38 kg/hm 2, respectively, but and that for ‘Guiliu 05136’ and ‘Guitang 29’ were lower. The total accumulation of N, P2O5 and K2O from different varieties was 133.79-196.82, 35.99-47.29 and 233.31-311.57 kg/hm 2, respectively, and that of ‘Guitang 42’ was higher than ‘Guiliu 05136’. N, P2O5 and K2O requirement per 1 t sugarcane stalk of different varieties were 1.57-2.03, 0.43-0.48 and 2.72-3.21 kg, respectively, and that of ‘Guiliu 05136’ was lower. The economic efficiency and physiological efficiency of N, P2O5 and K2O were the highest with ‘Guiliu 05136’. The dry matter accumulation, nutrient accumulation and nutrient efficiency of ratoon cane were higher than that of planting cane. In conclusion, the biological production of ‘Guitang 42’ is better, and the nutrient efficiency of ‘Guiliu 05136’ is high.

Key words: sugarcane, dry matter, nitrogen, phosphorus, potassium

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