| 钾肥品种与用量对黄瓜产量和品质的影响 |
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| 引用本文： | 郭熙盛,叶舒娅,王文军,朱宏斌,武际,吴礼树.钾肥品种与用量对黄瓜产量和品质的影响[J].植物营养与肥料学报,2004,10(3):292-297. |
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| 作者姓名： | 郭熙盛 叶舒娅 王文军 朱宏斌 武际 吴礼树 |
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| 作者单位： | 1.华中农业大学资源与环境学院 湖北武汉430070; |
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| 基金项目： | Sulphate of Potash Information Borad和K S Kali GrmbH公司资助项目 |
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| 摘 要： | 采用田间试验方法研究不同栽培条件下不同用量硫酸钾、氯化钾对黄瓜产量、品质和养分吸收分配的影响。结果表明,施用钾肥能提高黄瓜产量,硫酸钾增产效应比氯化钾高。设施栽培黄瓜施用硫酸钾可获得高产量效应和养分生产效率。钾肥可提高黄瓜Vc和糖分含量,氯化钾的效果优于硫酸钾;低、中量硫酸钾处理黄瓜氨基酸含量比氯化钾处理高,但必需氨基酸与营养价值低于氯化钾处理。钾肥可明显提高黄瓜果实含钾量,而降低其他养分含量;硫酸钾处理果实吸收养分的分配比例高于氯化钾处理,而氯化钾有利于黄瓜营养体养分积累。钾肥品种对黄瓜产量和品质影响的差异为硫酸钾和氯化钾混合施用提供了可能。
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| 关 键 词： | 硫酸钾 氯化钾 黄瓜 产量和品质 养分吸收 |
| 文章编号： | 1008-505X(2004)03-0292-06 |
| 修稿时间： | 2003年5月15日 |
Effect of different K sources and rates on the yield and quality of cucumber |
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| GUO Xi-sheng.Effect of different K sources and rates on the yield and quality of cucumber[J].Plant Nutrition and Fertilizer Science,2004,10(3):292-297. |
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| Authors: | GUO Xi-sheng |
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| Affiliation: | 1.College of Environ. and Resur.;Huazhong Agric. Univ.;Wuhan;Hubei 430070;China; |
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| Abstract: | Field experiments were conducted to study the effects of the different rates of potassium sulfate(SOP) and potassium chloride (MOP) on the yield, quality and nutrients uptake under field and plastic shed conditions. The results showed that the K fertilizer could increase the cucumber yield and SOP increment was higher than MOP. The application of SOP in cucumber at the plastic shed could obtain higher yield and nutrient utilization efficiency. Potash increased the Vc, sugar contents and MOP was better than SOP. The amino acid (AA) contents of cucumber with of low and middle rates of SOP were higher than that of MOP, but the nutrition value of essential AA was lower than MOP. K application could increase K content of cucumber, while other nutrients was decreased. The ratio of nutrients partition in cucumber fruit with SOP were higher than that with MOP. MOP was conducive to the nutrient accumulation in vegetative tissues of cucumber. The differences in the effects of potash sources on the yield and qualities provided the possibility for mixed use of SOP and MOP in cucumber cultivation. |
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| Keywords: | potassium sulfate potassium chloride cucumber yield and quality nutrient uptake |
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