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| 甘蔗最佳优化施肥田间试验初报 | |
| 引用本文： | 饶世刚,;丁春华,;孙祥厚,;杨翠芝. 甘蔗最佳优化施肥田间试验初报[J]. 中国糖料, 2014, 0(4): 19-20 |
| 作者姓名： | 饶世刚, 丁春华, 孙祥厚, 杨翠芝 |
| 作者单位： | [1]云南省保山市龙陵县勐糯镇农业技术推广站,龙陵678307; [2]云南省保山市甘蔗科学研究所,保山678000; [3]云南省保山市龙陵县土肥站,龙陵678300 |
| 摘 要： | 在龙陵县甘蔗主产区,以有机肥、磷钾肥作为底肥,氮肥作追肥：设不同时期、不同施氮量6个处理,探讨优化甘蔗追肥不同分配比例、施肥时期和施肥方法。试验结果表明：处理B（氮肥总量1/4分别作苗肥和壮尾肥,2/4作拔节肥）的甘蔗产量为109.02 t/hm2,比常规施肥（氮肥全部作拔节肥）的90.94 t/hm2增18.08 t/hm2,增幅19.88%；处理B的产糖量为13.55 t/hm2,比处理A的10.91 t/hm2增2.64 t/hm2,增幅24.2%。处理B增产增糖效果十分明显,值得推广应用。 |
| 关 键 词： | 甘蔗 最佳施肥 追肥 产量 |
Experimental Effect of Optimal Fertilization in Sugarcane Field |
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| Affiliation: | RAO Shi-gang, DING Chun-hua, SUN Xiang-hou, YANG Cui-zhi (1 Agricultural Extension Station of Yunnan Province Longling County Mengnuo Town, Longling 678300; 2 Sugarcane Research Institute of Baoshan, Yunnan Province, Baoshan 678000; 3 Longling County Soil and Fertilizer Station, Yunnan, Longling 678300) |
| Abstract: | The sugarcane fertilization experiment was conducted to test effect of applying organic, phosphate and potassium fertilizer as base fertilizer, the nitrogen fertilizer of 6 treatments as after manuring under different stages and application amount in comparison with the conventional fertilization in the Longling area. The results showed that： the treatment B （1/4 nitrogen fertilizer applied at seed bed and later growing stage, 2/4 nitrogen fertilizer applied at elongation stage） was superior to the others, the cane yield was up 109.02 t/ha, increased by 18.08 t/ha （19.88%）;sugar yield was 13.55 t/ha, increased by 2.64 t/ha （24.2%）, in comparison with the treatment A, conventional fertilization （all nitrogen fertilizer applied at elongation stage）. Therefore, the treatment B was very effective to increase cane yield and sugar yield. |
| Keywords: | sugarcane optimum fertilization topdressing fertilizer yield |
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