蔬菜

灌溉方式对温室土壤理化性状的影响

Effects of Irrigation Methods on Physical and Chemical Properties of Soil in Greenhouse

DOI：

英文关键词:rape irrigation method soil physical and chemical property

基金项目:2019年北京市创新团队叶类蔬菜团队项目（PXM2019_036231_000）。

作者	单位
赵丽霞	北京市延庆区农机化技术推广服务站，北京 102100

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中文摘要:

为研究不同灌溉方式对温室内土壤理化性状的影响，以油菜为试材，比较分析了日光温室内畦灌、微喷带、膜上畦灌、膜下微喷4种灌溉方式下的土壤理化性质变化情况。结果表明：经过一茬油菜种植后，不同灌溉方式处理的土壤容重、pH值较播种前都有不同程度增加，变化幅度均表现为畦灌＞微喷带＞膜上畦灌＞膜下微喷；土壤容重、pH值以膜下微喷处理最低，且显著低于畦灌和微喷带处理。相反，0～30 cm各个土层EC值和氮、磷、钾含量均有不同程度下降，降低幅度均表现为膜下微喷＞膜上畦灌＞微喷带＞畦灌。试验结果说明，膜下微喷改善土壤理化性质的效果最好。

英文摘要:

In order to study the effects of different irrigation methods on physical and chemical properties of soil in greenhouse, physical and chemical properties of the soil under four irrigation methods of border irrigation, micro sprinkling belt, border irrigation on film and micro sprinkling under film in solar greenhouse were compared and analyzed. The results showed that after planting a crop of rape, soil bulk density and pH value of different irrigation methods increased to different degrees compared with those before planting, and the variation range of four treatments were as follows: border irrigation > micro sprinkling belt > border irrigation on film > micro sprinkling under film. Soil bulk density and pH value were the lowest under micro sprinkling under film treatment, and significantly lower than those treatments of border irrigation and micro sprinkling belt. On the contrary, the EC value and the contents of N, P and K in each soil layer from 0 to 30 cm all decreased to different degrees, and the variation ranges of four treatments were all shown as micro sprinkling under film ＞ border irrigation on film ＞ micro sprinkling belt ＞ border irrigation. The results showed that micro sprinkling under film had the best effect on improving physical and chemical properties of soil.

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