| 机械化生产下不同品种甘蔗养分吸收与利用效率分析 |
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| 引用本文： | 韦冬萍,韦剑锋,梁振华,韦巧云,胡桂娟.机械化生产下不同品种甘蔗养分吸收与利用效率分析[J].热带作物学报,2020,41(5):845-850. |
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| 作者姓名： | 韦冬萍 韦剑锋 梁振华 韦巧云 胡桂娟 |
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| 作者单位： | 1. 广西科技大学鹿山学院,广西柳州 5456162. 广西南亚热带农业科学研究所,广西龙州 532415 |
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| 基金项目： | 国家自然科学基金项目“基于甘蔗生产全程机械化的肥料氮利用与土壤氮迁移研究”(31860593);广西自然科学基金项目“田间机械化生产下甘蔗氮利用与土壤氮迁移研究”(2018GXNSFAA281001);柳州市科技计划项目“基于生产全程机械化的甘蔗——土壤氮素利用、累积及迁移研究”(2018DH10502) |
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| 摘 要： | 本研究从高效生产角度出发,采用田间试验,分析机械化生产下4个甘蔗品种新植和宿根的干物质积累、养分积累及养分利用效率。结果表明,’桂糖42号’茎干物质积累量和干物质积累总量最高,比其他品种分别增加819.66~4273.69 kg/hm2和1232.14~5863.38 kg/hm2,而’桂柳05136’和’桂糖29号’的较低;不同品种N、P2O5及K2O积累总量分别为133.79~196.82、35.99~47.29、233.31~311.57 kg/hm2,其中’桂糖42号’均显著高于’桂柳05136’;不同品种每生产1 t蔗茎需要N、P2O5、K2O分别为1.57~2.03、0.43~0.48、2.72~3.21 kg,其中’桂柳05136’的均较低;N、P2O5、K2O的经济效率和生理效率以’桂柳05136’最高。不同品种宿根干物质积累量、养分积累量及养分经济效率和生理效率明显高于新植。因此,’桂糖42号’的生物产量性状较好,’桂柳05136’的养分效率较高。
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| 关 键 词： | 甘蔗 干物质 氮 磷 钾 |
| 收稿时间： | 2019-04-01 |
Variation among Sugarcane Varieties in Nutrient Uptake and Utilization under Mechanized Production |
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| WEI Dongping,WEI Jianfeng,LIANG Zhenhua,WEI Qiaoyun,HU Guijuan.Variation among Sugarcane Varieties in Nutrient Uptake and Utilization under Mechanized Production[J].Chinese Journal of Tropical Crops,2020,41(5):845-850. |
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| Authors: | WEI Dongping WEI Jianfeng LIANG Zhenhua WEI Qiaoyun HU Guijuan |
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| Institution: | 1. Lushan College of Guangxi University of Science and Technology, Liuzhou, Guangxi 545616, China2. Guangxi South Subtropical Agricultural Science Research Institute, Longzhou, Guangxi 532415, China |
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| Abstract: | 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. |
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| Keywords: | sugarcane dry matter nitrogen phosphorus potassium |
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