| 甘薯平衡施肥与施用钾肥效果的研究 |
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| 引用本文： | 杨爱梅,王自立,王家才.甘薯平衡施肥与施用钾肥效果的研究[J].河北农业科学,2009,13(3):48-50. |
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| 作者姓名： | 杨爱梅 王自立 王家才 |
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| 作者单位： | 1. 商丘市农林科学研究所,河南,商丘,476000
2. 洛阳市农业科学院,河南,洛阳,471022 |
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| 基金项目： | 国家行业计划项目，国家科技支撑计划，国家甘薯产业技术体系资助项目，河南省农业科技成果转化项目 |
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| 摘 要： | 在豫西半干旱区,采用甘薯高产栽培技术和平衡施肥技术,甘薯产量达到28 666.67 kg/hm^2。1 kg K2O可使甘薯增产7.07-26.26 kg。试验结果表明,在施有机肥7.5 t/hm^2的基础上,施K2O以375 kg/hm^2为宜,可使商薯19增产195 133.34-9 233.34 kg/hm^2,增产率26.42%-47.51%。施K处理比不施K处理可使单株结薯数增加15.21%,最长蔓长缩短7.45%,分枝数增加36.80%,单株鲜薯重增加29.86%。增产原因是以增加单株鲜薯重为主,其次是增加分枝和单株结薯数。在施入适量有机肥和N、P肥基础上,高产、高效的K2O用量为375 kg/hm^2。
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| 关 键 词： | 豫西半干旱区 甘薯 平衡施肥 钾肥效应 |
Study on the Effects of Balanced Fertilization and Application of Potassium Fertilizer on Sweet Potato |
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| YANG Ai-mei,WANG Zi-li,WANG Jia-cai.Study on the Effects of Balanced Fertilization and Application of Potassium Fertilizer on Sweet Potato[J].Journal of Hebei Agricultural Sciences,2009,13(3):48-50. |
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| Authors: | YANG Ai-mei WANG Zi-li WANG Jia-cai |
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| Institution: | 1.Shangqiu Institute of Agriculture and Forestry Sciences;Shangqiu 476000;China;2.Luoyang Academy of Agriculture Science;Luoyang 471022;China |
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| Abstract: | The yield of sweet potato reached 28 666.67 kg/hm2 using the high-yielding cultural and balanced fertilization techniques in semi-arid area in West He'nan.The yield increased 7.07-26.26 kg by 1 kg K2O.The results showed that the yield of Shangshu 19 increased 195 133.34-9 233.34 kg/hm2 and the increasing rate were 26.42%-47.51% based on 7.5 t/hm2 organic fertilizer and 375 kg/hm2 potassium fertilizer.Compared with the treatment of-K,the other treatments could increase the number of sweet potato per plant,th... |
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| Keywords: | Semi-arid area in West He'nan Sweet potato Balanced fertilization Effect of potash fertilizer |
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