Agronomic Characteristics and Financial Return of 3-Year Sugarcane Ratooning

JIANG Zhuhui; ZHOU Huiwen; YAN Haifeng; LIANG Xueyou; SONG Shi; WEI Zhiying; QIN Lei; XIONG Faqian; YOU Jianhua; QIU Lihang

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JIANG Z H, ZHOU H W, YAN H F, et al. Agronomic Characteristics and Financial Return of 3-Year Sugarcane Ratooning [J]. Fujian Journal of Agricultural Sciences，2024，39（6）：1−9

Citation:

JIANG Z H, ZHOU H W, YAN H F, et al. Agronomic Characteristics and Financial Return of 3-Year Sugarcane Ratooning [J]. Fujian Journal of Agricultural Sciences，2024，39（6）：1−9

JIANG Z H, ZHOU H W, YAN H F, et al. Agronomic Characteristics and Financial Return of 3-Year Sugarcane Ratooning [J]. Fujian Journal of Agricultural Sciences，2024，39（6）：1−9

Citation:

JIANG Z H, ZHOU H W, YAN H F, et al. Agronomic Characteristics and Financial Return of 3-Year Sugarcane Ratooning [J]. Fujian Journal of Agricultural Sciences，2024，39（6）：1−9

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Agronomic Characteristics and Financial Return of 3-Year Sugarcane Ratooning

1.
Guangxi Sugar Industry Group, Nanning, Guangxi　530022, China
2.
Sugarcane Research Institute, Guangxi Academy of Agricultural Sciences/Key Laboratory of Sugarcane Biotechnology and Genetic Improvement (Guangxi), Ministry of Agriculture and Rural Affairs/Guangxi Key Laboratory of Sugarcane Genetic Improvement, Nanning, Guangxi　530007, China
3.
Liujiang District Sugarcane Technology Promotion Station, Liuzhou, Guangxi　545100, China
4.
Liangqing Town Agricultural Service Center of Liangqing District in Nanning City, Nanning, Guangxi　530201, China
5.
Sugarcane Technology Extension Station of Xingbin District in Laibin City, Laibin, Guangxi　546138, China

Received Date: 2023-10-15
Rev Recd Date: 2024-02-18

Available Online: 2024-06-26

Abstract

Abstract

Objective Effects of extending the conventional two-year sugarcane ratooning on the agronomy, yield, and economics of the 3^rd year crop were analyzed. Method On ridge and furrow beds, 3 major sugarcane varieties cultivated in Guangxi Province, Guiliu 2 (GL2), Guitang 44 (GT44), and Yuetang 00236 (YT236), were grown conventionally as control. In the 3^rd year of the experiment, GF296 sugarcane stems started from seeds were used to fill in the areas where 2^nd year ratoons of the 3 chosen varieties of sugarcane did not sprout in the spring following the replanting. Major agronomic characteristics and sucrose content of all harvested crops in the 3^rd, 4^th, and 5^th year were determined for a comparative economic evaluation. Result The number of effective stems of replanted population of GL2, GT44, and YT236 was significantly higher than that of non-replanted population (CK). The yield of GL2, GT44, and YT236 populations as well as their corresponding CK populations decreased with the extended rooting years but increased with the extension of the ratoon years. Comparing the ratoon sugarcane varieties GL2, GT44, and YT236 with their respective control groups, it was found that there were differences in measurements on plant height, stem diameter, and weight per stem across various ratoon years. The number of effective stems of GL2, GT44, and YT236 without replanting significantly inversely correlated with the years of ratooning, which were -0.907, -0.931, and -0.756, respectively, so was the yield, which were −0.915, −0.905, and −0.930, respectively. The years of ratooning of the three varieties did not correlate with the yield, nor the number of effective stems after replanting. It suggested that the ratooning of sugarcane could be prolonged after replanting. Furthermore, after replanting, the financial returns of GL2, GT44, and YT236 were also raised with the increased total net incomes of 48,120.80 yuan·hm⁻², 46,765.80 yuan·hm⁻², and 42,398.60 yuan·hm⁻², respectively. Conclusion Direct replanting GF296 seed stems could effectively extend for 3 years of ratooning. It significantly increased the economic benefits for the farming while producing high-yield, stable sugarcane crops.
- Planting with seed stem,
- sugarcane ratooning,
- ratoon age,
- yield,
- economic benefit

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References(20)

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