引用本文: | 蒋丽媛,赵伟,杨圆圆,等.不同水质微咸水灌溉对蔬菜产量及 土壤盐分离子的影响[J].灌溉排水学报,0,():-. |
| jiangliyuan,zhao wei,yang yuanyuan,et al.不同水质微咸水灌溉对蔬菜产量及 土壤盐分离子的影响[J].灌溉排水学报,0,():-. |
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摘要: |
(目的)为探究灌溉水质、蔬菜产量及土壤盐分离子间的相互关系,(方法)本研究用不同水质的灌溉水E1(3.6 dS/m井水)、E2(1.96 dS/m井水)、E3(0.31 dS/m雨水)在2018和2019年连续灌溉番茄和青菜,研究不同处理对蔬菜产量、土壤电导率、土壤盐分离子的影响。(结果)结果表明:E3(雨水)处理番茄和青菜产量最高,显著高于E2和E1处理番茄产量30.9%、138.8%,显著高于E2和E1处理青菜产量431.4%、2100%。在0-60 cm土层内,土壤电导率随灌溉水电导率的增加而增加,其中0-20 cm E3处理土壤电导率为833 us/cm,E2和E1处理较E3处理分别增加40.9%和211.2%,E1处理达显著水平。土壤电导率EC值与盐分离子Na+、K+、Ca2+、Mg2+、Cl-、SO42-均表现为极显著正相关性(P<0.01),与HCO3-表现为极显著负相关性,其中Ca2+、Mg2+、Cl-、SO42-对土壤EC值的影响最大。(结论)在设施栽培下,电导率为1.96-3.6 dS/m灌溉水较雨水均降低了番茄和青菜产量,提高了土壤电导率和盐分离子(Na+、K+、Ca2+、Mg2+、Cl-、SO42-)含量,电导率为3.6 dS/m灌溉水严重降低了蔬菜产量,因此,在蔬菜种植时应关注灌溉水质量。 |
关键词: 灌溉水质;微咸水;产量;土壤电导率;土壤盐分离子 |
DOI: |
分类号:S606 |
基金项目:陕西省科技厅创新人才推进计划-青年科技新星项目(2020KJXX-014)资助。 |
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Effects of Brackish Water Irrigation with Different Water Quality on Vegetable Yield and Soil Salt Ions |
jiangliyuan1, zhao wei1, yang yuanyuan1, tang lei1, yang zhaosen1, chen zhijie2
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1.Weinan City Agricultural Technology Promotion Center;2.Bio-Agriculture Institute of Shaanxi
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Abstract: |
[Objective][Method]In order to explore the relationship among irrigation water quality, vegetable yield and soil salt ions,tomato and green vegetables were irrigated with E1(3.6 dS/m well water) , E2(1.96 dS/m well water) and E3(0.31 dS/m rain water) in 2018 and 2019, the effects of different treatments on vegetable yield, soil electrical conductivity and soil salt ions were studied. [Result]The results showed that the yield of tomato and green vegetable in E3 (rainwater) treatment was the highest, which was 30.9% and 138.8% higher than that in E2 and E1 treatment, and 431.4% and 2100% higher than that in E2 and E1 treatment, respectively. In the 0-60 cm soil layer, the soil conductivity increased with the increase of irrigation water conductivity. Among them, the soil conductivity of 0-20 cm E3 treatment was 833 us/cm. The E2 and E1 treatment increased by 40.9% and 211.2% respectively compared with E3 treatment, and the E1 treatment reached a significant level. The EC Value of soil conductivity showed a very significant positive correlation with soil salt ions Na+, K+, Ca2+, Mg2+, Cl- and SO42- (P<0.01), and a very significant negative correlation with HCO3-, among which Ca2+, Mg2+, Cl-, SO42-had the greatest impact on the EC Value of soil.[Conclusion]Under protected cultivation, the irrigation water with conductivity of 1.96-3.6 dS/m reduces the yield of tomato and green vegetables compared with rainwater, and improves the content of soil conductivity and salt ions ( Na+, K+, Ca2+, Mg2+, Cl- and SO42-). The irrigation water with conductivity of 3.6 dS/m seriously reduces the yield of vegetables. Therefore, we should pay attention to the quality of irrigation water when planting vegetables. |
Key words: irrigation water quality;brackish water; yield; soil conductivity;soil salt ions |