| 秋延迟番茄氮、磷、钾优化施肥方案研究 |
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| 引用本文： | 袁亭亭,杨建平,徐坤.秋延迟番茄氮、磷、钾优化施肥方案研究[J].植物营养与肥料学报,2010,16(5):1246-1251. |
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| 作者姓名： | 袁亭亭 杨建平 徐坤 |
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| 基金项目： | 国家科技部"十一五"科技支撑计划 |
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| 摘 要： | 采用三因子二次饱和D-最优设计(310),研究了氮、磷、钾配施对秋延迟番茄产量和品质的影响,并建立了以氮、磷、钾用量为变量因子,番茄产量和品质为目标函数的三元二次数学模型。通过对模型解析表明,氮、磷、钾对番茄产量和品质均有显著影响,且两两间存在显著的互作效应,但以钾肥对番茄产量、品质的影响较大。在低水平条件下,番茄产量、品质均随氮、磷、钾使用量的增加而提高;当氮、磷、钾用量过多,则导致产量、品质降低。通过计算机模拟运算得出,本试验条件下,番茄产量达140 t/hm2、品质综合评分达95分以上的施肥方案为N 520.2～758.4 kg/hm2、P2O5294.8～367.3 kg/hm2、K2O 1051.5～1299.8 kg/hm2,适宜的N、P2O5、K2O施用比例约为1∶0.52∶1.84。
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| 关 键 词： | 番茄 施肥 产量 品质 |
| 收稿时间： | 2009-11-05 |
Study on optimization of NPK fertilization scheme of tomato in late autumn |
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| YUAN Ting-ting,YANG Jian-ping,XU Kun.Study on optimization of NPK fertilization scheme of tomato in late autumn[J].Plant Nutrition and Fertilizer Science,2010,16(5):1246-1251. |
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| Authors: | YUAN Ting-ting YANG Jian-ping XU Kun |
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| Abstract: | The effects of nitrogen (N), phosphorus (P) and potassium (K) on yield and quality of tomato were studied with the design of three factors and quadratic saturation D optimal regression (310). According to the data obtained, a mathematical model was developed, in which N, P and K were independent variables and tomato yield and quality parameters were dependent variables. The model analysis shows that yields and quality of tomato are significantly influenced under the N, P and K applications, and there are significant interactive effects between every two factors. Among the three factors, K has the greatest effects on yield and quality of tomato. At the lower levels, the yields and quality are improved along with the increase of N, P and K, and are decreased when N, P and K are applied too much. Obtained by computer simulation in this experiment, the yields could reach to 150 t/ha and quality grade could pass 95 when the fertilizer rates are N 520.2-758.4 kg/ha, P2O5 294.8-367.3 kg/ha and K2O 1051.5-1299.8 kg/ha. The suitable ratio of N∶P2O5∶K2O is about 1∶0.52∶1.84. |
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| Keywords: | tomato fertilization yield quality |
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