基于蒸发皿蒸发量的椰糠盆栽番茄适宜灌溉量估算与试验
S275.6%S274.1%S641.2; 目前以实测蒸腾量、田间持水量或累计太阳辐射作为灌水依据建立的温室作物蒸腾模型中,其灌水依据的确定所需监测参数项多,且对监测仪器精度要求较高.基于此,该研究以20 cm蒸发皿蒸发量为灌水依据,设置日光温室椰糠盆栽番茄3个生育时期的不同蒸发皿系数灌水量水平(苗期:0.2(ET1)、0.4(ET2)、0.6(ET3);开花坐果期:0.3(ET1)、0.5(ET2)、0.7(ET3);成熟采摘期:0.7(ET1)、0.9(ET2)、1.1(ET3)),对番茄株产量、水分利用效率(Water Use Efficiency,WUE)及品质进行综合评价,筛选出较优...
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| Published in | 农业工程学报 Vol. 38; no. 11; pp. 117 - 124 |
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| Main Authors | , , , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
河北农业大学城乡建设学院,保定 071000%河北农业大学园艺学院,保定 071000
01.06.2022
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2022.11.013 |
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| Abstract | S275.6%S274.1%S641.2; 目前以实测蒸腾量、田间持水量或累计太阳辐射作为灌水依据建立的温室作物蒸腾模型中,其灌水依据的确定所需监测参数项多,且对监测仪器精度要求较高.基于此,该研究以20 cm蒸发皿蒸发量为灌水依据,设置日光温室椰糠盆栽番茄3个生育时期的不同蒸发皿系数灌水量水平(苗期:0.2(ET1)、0.4(ET2)、0.6(ET3);开花坐果期:0.3(ET1)、0.5(ET2)、0.7(ET3);成熟采摘期:0.7(ET1)、0.9(ET2)、1.1(ET3)),对番茄株产量、水分利用效率(Water Use Efficiency,WUE)及品质进行综合评价,筛选出较优灌水量水平;基于较优灌水量水平建立蒸腾模型,并以其余两个处理实测值对模型进行验证.结果表明:ET2处理株高、可溶性糖和可溶性蛋白质含量分别显著高于其他处理8.54％～14.27％、28.61％～32.99％和38.70％～70.83％;相较于ET3处理,ET2处理可在仅降低株产量2.50％情况下提高WUE10.05％和节约灌水量22.23％.对株产量、WUE及品质进行主成分分析,综合得分最高处理为ET2;各因子对日蒸腾量的影响程度大小依次为日累积净辐射(M)、日平均温度(T)、叶面积指数(Leaf Area Index,LAI),日蒸腾量与M、T和LAI均呈极显著正相关;该研究基于ET2处理所建立的椰糠栽培番茄蒸腾模型拟合较好,均方根误差为49.88 g,相对误差为11.88％.研究结果可为日光温室椰糠栽培番茄高效生产和智能化灌溉提供科学依据和决策参考. |
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| AbstractList | S275.6%S274.1%S641.2; 目前以实测蒸腾量、田间持水量或累计太阳辐射作为灌水依据建立的温室作物蒸腾模型中,其灌水依据的确定所需监测参数项多,且对监测仪器精度要求较高.基于此,该研究以20 cm蒸发皿蒸发量为灌水依据,设置日光温室椰糠盆栽番茄3个生育时期的不同蒸发皿系数灌水量水平(苗期:0.2(ET1)、0.4(ET2)、0.6(ET3);开花坐果期:0.3(ET1)、0.5(ET2)、0.7(ET3);成熟采摘期:0.7(ET1)、0.9(ET2)、1.1(ET3)),对番茄株产量、水分利用效率(Water Use Efficiency,WUE)及品质进行综合评价,筛选出较优灌水量水平;基于较优灌水量水平建立蒸腾模型,并以其余两个处理实测值对模型进行验证.结果表明:ET2处理株高、可溶性糖和可溶性蛋白质含量分别显著高于其他处理8.54％～14.27％、28.61％～32.99％和38.70％～70.83％;相较于ET3处理,ET2处理可在仅降低株产量2.50％情况下提高WUE10.05％和节约灌水量22.23％.对株产量、WUE及品质进行主成分分析,综合得分最高处理为ET2;各因子对日蒸腾量的影响程度大小依次为日累积净辐射(M)、日平均温度(T)、叶面积指数(Leaf Area Index,LAI),日蒸腾量与M、T和LAI均呈极显著正相关;该研究基于ET2处理所建立的椰糠栽培番茄蒸腾模型拟合较好,均方根误差为49.88 g,相对误差为11.88％.研究结果可为日光温室椰糠栽培番茄高效生产和智能化灌溉提供科学依据和决策参考. |
| Author | 高洪波 张西平 霍钊培 吴晓蕾 刘聪 赵峰 吕桂云 宫彬彬 |
| AuthorAffiliation | 河北农业大学城乡建设学院,保定 071000%河北农业大学园艺学院,保定 071000 |
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| Author_FL | Wu Xiaolei Huo Zhaopei Gong Binbin Zhang Xiping Gao Hongbo Liu Cong Lyu Guiyun Zhao Feng |
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| DocumentTitle_FL | Estimation and experiment of the suitable irrigation amount of potted tomatoes with coconut bran using pan evaporation |
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| Keywords | 主成分分析 灌溉 蒸发皿蒸发量 椰糠 蒸腾 通径分析 |
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| Title | 基于蒸发皿蒸发量的椰糠盆栽番茄适宜灌溉量估算与试验 |
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