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| 甘薯施用氮肥效果试验 | |
| 引用本文： | 黄文星. 甘薯施用氮肥效果试验[J]. 福建农业科技, 2012, 0(8): 55-57 |
| 作者姓名： | 黄文星 |
| 作者单位： | 福建省长汀县新桥镇农技站,366307 |
| 基金项目： | 国家甘薯产业技术体系龙岩综合试验站项目 |
| 摘 要： | 研究不同氮肥用量对甘薯产量的影响,试验结果表明,以每667 m2施用N 9 kg处理产量最高,达4 095 kg,较对照增产55.65%,达极显著水平;该处理氮肥利用率为26.17%,氮肥偏生产力为209.23,产投比2.34,每667 m2增加纯收入972元。 |
| 关 键 词： | 甘薯 氮肥 产量 氮肥利用率 |
Effects of applying nitrogen fertilizer on sweet potato |
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| HUANG Wen-xing. Effects of applying nitrogen fertilizer on sweet potato[J]. Fujian Agricultural Science and Technology, 2012, 0(8): 55-57 | |
| Authors: | HUANG Wen-xing |
| Affiliation: | HUANG Wen-xing(Xinqiao Agricultural Technique Extension Station,Fujian Province 366307) |
| Abstract: | Effects of different amount of nitrogen fertilizer on the yield of sweet potato were investigated.The results showed that: the highest yield of sweet potato was 4 095 kg/667m2(61 425 kg/hm2) by applying N 9 kg/667m2(135 kg/hm2),the increased rate was 55.65% to compare with the control treatment,reached very significant level.In this treatment,the efficiency of N fertilizer was 26.17%,partial nitrogen fertilizer productivity was 209.23 and the ratio of output and input was 2.34 and net income increased by 972 yuan/667m2(14 580 yuan/hm2). |
| Keywords: | Sweet potato nitrogen fertilizer yield nitrogen efficiency |
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